Baltimore/DC NWS provides historical heat wave perspective

I’ve got another post coming up after this one about the record high temperature set in Baltimore today…

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

0547 PM EDT TUE JUL 06 2010

...RECORD HIGH TEMPERATURE SET AT BALTIMORE MD...

 A RECORD HIGH TEMPERATURE OF 105 DEGREES WAS SET AT BALTIMORE MD

TODAY. THIS BREAKS THE OLD RECORD OF 101 SET IN 1999.

…but I first thought I’d give credit where credit is due. While the MSM prattles on about the heat wave on the east coast of the USA, it is useful to step back and look at some historical perspectives. To their credit, the NWS in Baltimore did just that.

Dr. Roger Pielke Sr. alerted me to this Area Forecast Discussion (AFD) on the Baltimore/Washington DC National Weather Service page. The full text is below (source here) but I’ve pulled it out for you to read. Note that the appearance of “talking in code” is a holdover from when the NWS weather wire used to be communicated via KSR-28 teletypes operating at 56.85 baud, using 5 bit BAUDOT code, where every character saved meant more time for other products sent. In today’s hi-speed Internet age, it seems a silly holdover:

I RCVD A CALL ABT HIGH TEMP RECORDS AND DID A LTL RESEARCH – THIS IS CERTAINLY HOT BUT WAT OCCURRED 80 YRS AGO…W/O THE MODERN CONVENIENCES WE HV TDA…SEEMS UNFATHOMABLE. IN JUL AND AUG 1930 DC/BALT SET MULTIPLE RECORDS WHICH STILL STAND. AT DC IN JUL`30 4 HIGH TEMP RECORDS WERE SET – 100, 102, 103, AND 106. AND THE NGT OF 7/27/30 STILL HOLDS THE RECORD MIN..WHEN THERE WAS A WHOLE LOT LESS INFRASTRUCTURE…OF 81. NOT TO BE OUTDONE AUG 4-9 `30 HAD 3 DAYS OF 102…ALSO LONG STANDING RECORDS. WHEW!

Even the NWS recognizes the UHI effect on record temps. So much in fact that they closed the rooftop USHCN station in 1999 because it was reading erroneously.

baltimore_table.jpg

Full story here:

How not to measure temperature, part 48. NOAA cites errors with Baltimore’s Rooftop USHCN Station

Here is the full text of the AFD:

000

FXUS61 KLWX 061328

AFDLWX

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

928 AM EDT TUE JUL 6 2010

.SYNOPSIS...

HIGH PRESSURE WILL INFLUENCE THE MID ATLANTIC THROUGH THE END OF

THE WEEK...KEEPING HOT CONDITIONS ACROSS THE AREA. AN UPPER LOW

CURRENTLY STALLED SOUTHEAST OF NOVA SCOTIA WILL MOVE SOUTHWEST

TOWARD THE MID ATLANTIC COAST THROUGH LATE IN THE WEEK...BEFORE A

COLD FRONT MOVES THROUGH ON SATURDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...

-- Changed Discussion --
UPDATE... HEAT ADVSRIES IN EFFECT FM CENTRAL VA ALL THE WAY TO QUEBEC. SFC ANLYS SHOWS HIGH PRES RMNS ANCHORED OVR THE RGN W/ WX PATTERN E OF THE MS RVR ESSENTIALLY STAGNANT FOR THE NEXT COUPLE OF DAYS. I RCVD A CALL ABT HIGH TEMP RECORDS AND DID A LTL RESEARCH - THIS IS CERTAINLY HOT BUT WAT OCCURRED 80 YRS AGO...W/O THE MODERN CONVENIENCES WE HV TDA...SEEMS UNFATHOMABLE. IN JUL AND AUG 1930 DC/BALT SET MULTIPLE RECORDS WHICH STILL STAND. AT DC IN JUL`30 4 HIGH TEMP RECORDS WERE SET - 100, 102, 103, AND 106. AND THE NGT OF 7/27/30 STILL HOLDS THE RECORD MIN..WHEN THERE WAS A WHOLE LOT LESS INFRASTRUCTURE...OF 81. NOT TO BE OUTDONE AUG 4-9 `30 HAD 3 DAYS OF 102...ALSO LONG STANDING RECORDS. WHEW! FCST IN XCLNT SHAPE. PRES DCSN... ANOTHER HOT DAY TDA AS THE STRONG ANTICYCLONE REMAINS OVRHD. H8 TEMPS EVEN A DEGREE OR SO CELSIUS WARMER TDA THAN YESTERDAY WILL TRANSLATE TO WIDESPREAD 100F READINGS EAST OF THE BLUE RIDGE. THE LOCATIONS THAT HIT 100F YESTERDAY MAY RISE INTO THE LOW 100S TDA. TO CONSTRUCT TDA`S MAX TEMP GRID...USED A BLEND OF MODEL GUIDANCE FOR A BACKGROUND GRID AND THEN ADDED 1-3F /DEPENDING ON THE LOCATION/ TO YESTERDAY`S HIGHS AT SPECIFIC ASOS SITES. THE SLIGHTLY HIGHER TEMPERATURES COMBINED WITH THE SLIGHTLY HIGHER DEWPOINTS /MID 60S DURING THE AFTN/ ADVECTED FROM THE NORTH WILL YIELD HEAT INDICES OF AROUND 105F IN LOCATIONS ALONG AND EAST OF THE BLUE RIDGE....WHICH WARRANTS THE HEAT ADVISORY BEGINNING AT NOON. LIGHT N-NW WINDS GENERALLY AOB 10 MPH WILL NOT PROVIDE MUCH RELIEF TO THE HEAT. ANOTHER CONCERN IS THE LACK OF RELIEF FROM THE HEAT AT NIGHT IN THE CITY AREAS. OVNGT LOWS IN DC AND BALTIMORE WILL STRUGGLE TO DROP OUT OF THE 80S WHILE IT WILL FEEL MORE HUMID AS DEWPOINTS RISE INTO THE U60S TO NEAR 70F AT NIGHT.
-- End Changed Discussion --
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57 thoughts on “Baltimore/DC NWS provides historical heat wave perspective

  1. It seems to me that “talking in code” is the norm in a world of texting and tweeting. The more things change, the more they stay the same. ;->

  2. Don’t be too hard on the Baltimore/Washington NWS “talking in code”. Many of us are frozen in time with the tech we first were exposed too. My daughter, an IT pro, is always laughing at me for insisting on using file names of no more than 8 characters, something probably not necessary for the last 10-15 years, but important under early versions of DOS.

  3. And just for some balance, here’s a current public information bulletin from NWS in southern California.
    RECORD EVENT REPORT
    NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
    455 AM PDT TUE JUL 6 2010
    …RECORD LOW MAXIMUM TEMPERATURES OVER THE PAST FEW DAYS…
    IF THE DAYS HAVE SEEMED RATHER CHILLY FOR JULY LATELY…IT IS WITH
    GOOD REASON. RECORD LOW MAXIMUM TEMPERATURES HAVE BEEN SET OR TIED
    IN SOME LOCATIONS ON EACH OF THE PAST THREE DAYS.
    ON JULY 3RD…THE HIGH TEMPERATURE OF 69 DEGREES AT LONG BEACH
    AIRPORT BROKE THE OLD RECORD OF 72 DEGREES SET IN 1999.
    ON JULY 4TH…THE HIGH TEMPERATURE OF 70 DEGREES AT LONG BEACH
    AIRPORT TIED THE RECORD FOR THE DATE…SET IN 2002.
    YESTERDAY…NEW RECORDS WERE SET AT BOTH LOS ANGELES AIRPORT AND
    LONG BEACH AIRPORT FOR JULY 5TH. THE HIGH TEMPERATURE OF 67 DEGREES
    AT LOS ANGELES AIRPORT WAS 1 DEGREE LOWER THAN THE PREVIOUS RECORD
    OF 68 DEGREES SET IN 1968. THE HIGH OF 71 DEGREES AT LONG BEACH
    AIRPORT WAS ALSO 1 DEGREE LOWER THAN THE PREVIOUS RECORD OF 72
    DEGREES SET IN 2002.
    OFFICIAL RECORDS HAVE BEEN KEPT AT LOS ANGELES AIRPORT SINCE 1944
    AND AT LONG BEACH AIRPORT SINCE 1958.

  4. Hot in the east, cold in the west, the exact opposite of this past February. Is a discussion of the jet stream position in order?

  5. Its been cool in Florida. We have been rainy and 5-7 F below normal for the last 3 days.

  6. It was very hot here (around DC) today, but dry. Many people thought it didn’t feel too bad especially in the shade. I think we made it this high because much of the area hasn’t had rain for a month and the dry air allows a higher high (but also a lower low as we will fall well below record high minimum temps tonight). Tomorrow we may get more humidity along with slightly lower high temperatures.

  7. 7 July: ABC Australia: Alice shivers through coldest day on record
    Alice Springs has had its coldest day on record, shivering through single digit temperatures yesterday.
    Sally Cutter from the weather bureau says Alice Springs reached a maximum of just 6.4 degrees yesterday afternoon.
    “That makes it the coldest on record for Alice Springs and those records are fairly old,” she said.
    “I think it was 1948 was the coldest July day and 1966 was the previous coldest day on record.”..
    http://www.abc.net.au/news/stories/2010/07/07/2946659.htm
    6 July: UK Tele: Alice Springs: coldest day on record
    The Outback Australian town of Alice Spring is suffering what is likely to be its coldest day on record, with temperatures struggling to reach more than 42.8F (6C).
    The town, which is used to sweltering in the desert heat, is blanketed by a thick band of cloud, which has been blamed for pushing temperatures down. The mercury rose to just 43.3F (6.3C) by the late afternoon, but the record cannot be confirmed until 9am on Wednesday.
    Cold weather is a novelty in Alice Springs, Australia. The previous coldest day was in August 1966 when the maximum temperature reached just 44.6F (7C). ..
    http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/7874500/Alice-Springs-coldest-day-on-record.html

  8. btw temps in ABC previous post and here are centigrade:
    6 July: ABC Australia: Cold weather a blessing in disguise
    An independent agronomist says freezing temperatures across much of the state may in fact help the state’s farmers.
    On Sunday, Geraldton shivered through its coldest temperature on record, when the mercury dipped to 0.4 degrees.
    Much of the Wheatbelt has also experienced temperatures below 5 degrees.
    Richard Quinlan from Planfarm says frost is unlikely to cause damage, because most crops are still in the early stages of growth…
    http://www.abc.net.au/news/stories/2010/07/06/2946119.htm

  9. As fhsiv already pointed out, SoCal is experiencing record cool temps. Just to put it into perspective, the high temp yesterday in San Diego was 65 degrees. That’s the normal high temp for January 1st!
    Of course 65 is only 10 degrees below normal for San Diego in July. We don’t have much a difference between temps in summer versus winter down here along the coast!

  10. Of couse what happened 80 years ago isn’t on the MSM radar. Thier clocks were reset to 1979.

  11. Eric (skeptic) says:
    July 6, 2010 at 6:41 pm
    Can’t find what I did with the article, but in the AMA Journals over 100 years ago, 1 week in August had temps at or above 100 all across the US, and a couple of days later saw widespread frost in most states.
    Maybe one of you AMA fellows out there knows how to search that out.

  12. Yes talking in Txt style speak was also very common for morse code operators. My father who was one in the war is very proficient at txt-ing his teenage grandchildren, to their amazement.

  13. Already the usual Environment Canada suspect is salivating about the heatwave:
    “This is not just an American heat wave or a Canadian heat wave. It’s really roasting the eastern half of the continent,” David Phillips of Environment Canada said from Toronto.”
    For reference it was 22 in Winnipeg.
    Next we’ll expect high pressure anticyclones to stop at the border and show documents…

  14. Eric (skeptic) says:
    July 6, 2010 at 6:41 pm
    It was very hot here (around DC) today, but dry. Many people thought it didn’t feel too bad especially in the shade. I think we made it this high because much of the area hasn’t had rain for a month and the dry air allows a higher high (but also a lower low as we will fall well below record high minimum temps tonight). Tomorrow we may get more humidity along with slightly lower high temperatures.

    Sissy, but good to to here you are still there… by skimming through some MSM news I thought you on the East coast were all dying while lying on the 193 degree tarmac after being programmed that hot is really cold, or was it taught the other way around!
    But I know what has really happened, you’ve got OK’s weather and I would like it back! It’s fall weather here already, 72 degrees, overcast, cool, rainy for last week and at least five more to run they say and it’s not my liking for summer. I want my normal 100+ degree July temperatures back, OK? (you can have this crud if you want it) 🙂
    However, it’s been great for the wheat if it’ll just stop soon!

  15. The fact that the main stream media are blowing this “heat wave” all out of proportion is well….typical of their reactive, sensationalist BS.
    It is also indicative of the fact that because it is occurring in the “Megalopolis”, because the world revolves around them, (and all of the national networks of ABC, CBS, NBC, and the New York Times are centered there), the rest of the world, should be forced to know about it, too, lol.
    Nothing like a little northeast-USA-centrism to be forced down your throats, right?
    Well, while they sizzle a little bit in Baltimore and Philly, and DC, maybe some of the powers that be at Al Gore Central don’t want you to remember what just occurred a few months ago….literally:
    http://wattsupwiththat.com/2010/02/10/all-time-seasonal-snowfall-record-broken-in-washington-and-baltimore/
    Chris
    Norfolk, VA, USa

  16. Off Topic, kind of… I am flying to Baltimore tomorrow for a meeting with a publisher based out there.
    Its currently 52 degrees with a lite fog and blue sky’s currently at the Pacific Coast… I will probably go into shock, just trying to breath once I arrive. This should be interesting. It will be the hottest temp I have felt in ages… I have gotton used to my Pacific Ice Age Temps.

  17. After tomorrow, anyways…its over.
    http://www.goes.noaa.gov/GIFS/ECSTWV.JPG
    An unusual, retrograding upper-level cyclone is about to slosh ashore from the ENE off the Atlantic and bring some increased moisture, and “cooler” maritime temperatures, putting an end to this nonsense hyped-up heat wave that is being forced across the airways thanks to the Chicken-Little news.
    Back to the retrograding upper low in the scalding direct sun heat of of the NH July:
    I think this display you are seeing is reflective of the mature AMO, cooling Pacific…and the sheer fact that the extremely high heights of the anticyclone that was “threatening” to become this over-hyped monster East-o-centric “heat wave”…. are evaporating before our eyes.
    It is all a sign of the times. This would have amplified and become a monster in 2007.
    But not now in 2010. Hmm.
    Ask the Texans about heat waves and dry conditions.
    Well, not this year. But the last few years.
    And you don’t hear them whining on the news.
    Its all no big deal….and definitely not newsworthy.
    Just natural variation….with a few urban heat islands and misplaced weather data stations on airplane tarmacs and rooftops…mixed in.
    Chris
    Norfolk, VA, USA

  18. A teletype connected to the internet is still a teletype. Are you sure they scrapped the KSRs? Thunkchugga Thunkchugga…..

  19. PennState at it again:
    6 July: PennLive: Donald Brown: Climate change could be worse than Gulf spill
    Donald Brown is associate professor of Environmental Ethics, Science and Law at Penn State University
    As the globe has been experiencing record heat during the spring, floodwaters that have been predicted by climate change science are wreaking havoc in many worldwide locations. Disastrous flooding was experienced this spring in France where flash floods hit the back hills of the French Riviera and turned streets into rivers of surging, muddy water. The death toll from the flooding has risen to 25.
    In Myanmar and Bangladesh, floods and landslides triggered by incessant monsoon rains have killed more than 100 people. China and Brazil have also experienced devastating flooding this year. In the United States, flooding in Texas, Nebraska and Wyoming has caused massive damage to farms and homes.
    Although science can’t say that all of these flooding events are directly attributable to human-causation, this flooding is predicted by climate change science.
    Climate change not only threatens more people, animals and ecological systems around the world than the Gulf spill, it promises to be a problem that will continually wreak havoc for centuries while harming the world’s poorest and most vulnerable people with drought, floods, killer storms, rising sea levels and vector-borne disease.
    The magnitude of greenhouse gas emissions reductions needed to prevent dangerous climate change is truly civilization challenging. This is so because the world will need to reduce global greenhouse gas emissions from current levels by 80 percent or greater by the middle of this century to prevent catastrophic climate change. Greenhouse gas emissions increase worldwide at 2 percent per year under current trends….
    http://www.pennlive.com/editorials/index.ssf/2010/07/climate_change_could_be_worse.html

  20. Seems to be hottest nearest the sources of hot air, especially DC and New York. In addition to the urban heat island effect, could there be a bloviating politician effect?

  21. “This is not just an American heat wave or a Canadian heat wave. It’s really roasting the eastern half of the continent,” David Phillips of Environment Canada said from Toronto.”
    Apparently Florida is no longer a part of the continent.
    I have not had to use my A/C for about 4 days now, too many clouds and rain. Perhaps there was a hole in the upper atmosphere and whatever CO2 that was over my part of Florida leaked out. What else could explain the drop in temps.
    There is an old adage for real estate: “location, location, location”.
    For surface temperature it should be: “insolation, insolation, insolation”.

  22. incredible piece and comments:
    5 July: BBC: Richard Black: Dutch courage for climate mainstream
    Meanwhile, some of the IPCC’s harshest critics within mainstream journalism are having to retrench on some of their most contentious claims…
    The Canadian National Post and Financial Post newspaper group is being sued for libel by Canadian scientist Andrew Weaver – a particularly interesting action, in that it seeks to make the paper liable for readers’ comments appended to articles as well as for the articles themselves.
    There’s a chance, I gather, that even more explosive libel suits may follow…
    As this series of reviews unwinds, we see a landscape in which the central claims of mainstream climate science is judged to be untouched: a landscape in which man-made climate change is very likely happening, and its effects are projected to be significant in many regions of the world, particularly in regions populated by the poor.
    http://www.bbc.co.uk/blogs/thereporters/richardblack/2010/07/dutch_courage.html

  23. Talking in code is probably primarily consideration for older vessels that still rely on older technology.

  24. Meanwhile, we are chilling (literally) in Southern California by the beaches. The high today was at 5:00 p.m. (local) at Los Angeles International Airport (LAX), of 64.9 degrees. LAX’s runways are less than a half mile from the beach at Santa Monica Bay.
    Whatever warming is occurring, it’s not global.

  25. savethesharks says:
    July 6, 2010 at 7:56 pm
    Chris, you’re absolutely right about Texas though. Everyone should spend an August in Texas, you will never complain again. That was the jab to Eric above about a day or two of 100+ in DC. But the real old south can have some swelters too, there it’s a bit below 100 but near 100% humidity and really, that’s even worst than either Texas or Oklahoma, hot, no wind, and sticky, sticky. I’ve lived them all. So tough it up you sissy Yankee MSM, you’ve got nothing real to complain about, just send it back west so we can have a summer. 🙂

  26. pat says:
    July 6, 2010 at 8:00 pm
    PennState at it again:
    ========================
    Their last gasp, Pat. Thanks for providing this pathetic “editorial” from a professor of environmental ethics, science and law.
    Note ALL of the comments on his article were like “this is BS.”
    My favorite quote from the comments:
    “Doubt I’d want “professor of Environmental Ethics, Science and Law” on my resume these days. Recent revelations show that there are precious little ethics, science or law in the global warming industry on which he relies for his livelihood.”
    You gotta love the truth.

  27. I guess what makes a heat wave is relevant to what you are used to.
    When I was a kid riding the train home from boarding school, we would step out of an air-conditioned train at Charleville (QLD AUST) on to a platform that was in excess of 120°F. It was like opening the door to a blast furnace, to this day that feeling of intense dry heat means home. (I’m getting a bit choked up just thinking about it)

  28. wayne says:
    July 6, 2010 at 8:51 pm
    So tough it up you sissy Yankee MSM, you’ve got nothing real to complain about, just send it back west so we can have a summer. 🙂
    ==============================
    Right, Wayne. I guess that makes me a sissy too lol. I grew up with cold AMO summers with lots of t-storms and moderate heat.
    I hate…..HATE the hot high-noon, not a cloud to be seen, drought-ridden summer days.
    If I was a resident in Texas in 2008 my water bill would be $1000 a month lol.
    But I hear ya…we just need to learn to live “with” Nature…whatever she may bring.
    Grrrr….you can have the dry heat though. [And you are correct that bubble was squished NE from TX/OK over the past couple of years in the means….thanks to the shifts in the AMO].
    I stay very, VERY close to the ocean this time of year.
    Chris
    Norfolk, VA, USA

  29. savethesharks says:
    July 6, 2010 at 9:07 pm
    I hate…..HATE the hot high-noon, not a cloud to be seen, drought-ridden summer days.

    Yeah, yeah, but did you wear a ten-gallon hat? Didn’t anybody tell you about the hat? Brother, that was your problem! If you’re going to take on the Texas high-noon sun (you know, everything in Texas is twice as big), you gotta have a proper Texas hat!

  30. From,
    pat says:
    July 6, 2010 at 8:16 pm
    Richard Black:
    As this series of reviews unwinds, we see a landscape in which the central claims of mainstream climate science is judged to be untouched: a landscape in which man-made climate change is very likely happening, and its effects are projected to be significant in many regions of the world, particularly in regions populated by the poor.
    http://www.bbc.co.uk/blogs/thereporters/richardblack/2010/07/dutch_courage.html
    I guess that’s why the “poor” of China and India are endeavoring to produce as much fossil fuel CO2 as possible via their massive coal-fired electrification projects?

  31. It’s 7 July and the high of the nearest official station here in Oslo, Norway so far this year is 20.1 C. The station has recorded maximum temperatures since 1950, and never before has it seen 7 July and not recorded anything higher than 20.1 C so far for the year.

  32. In the northwest we are predicted to be normal. We have been running at least 10 degrees below average. Tomorrow we are predicted to be in the eighties. I’ll believe it when I live it. Jet stream and high pressure systems, not Al Gore.

  33. wayne says:
    July 6, 2010 at 9:34 pm
    savethesharks says:
    July 6, 2010 at 9:07 pm
    Yeah, yeah, but did you wear a ten-gallon hat? Didn’t anybody tell you about the hat? Brother, that was your problem! If you’re going to take on the Texas high-noon sun (you know, everything in Texas is twice as big), you gotta have a proper Texas hat!
    ==================================
    Checkmate. You got me.
    Chris
    Norfolk (Tree-filled), VA

  34. In the Denver area, we had a high of 73 and rain on Sunday, low 80s Mon, made it to the high 80s today, but are expecting a high of 67 tomorrow and 71 on Thursday.
    Not exactly the usual July weather.
    And this follows a cold, wet winter and cold spring.
    My tomatoes aren’t happy.

  35. Roger Sowell said: “Whatever warming is occurring, it’s not global.” This made me think……
    Maybe we should start calling these perceived conditions: ‘Local Warming’.
    The phrase describes the disparity between northern and southern hemisphere temps, as well as the condtions identified by Mr. Watts’ Surfacestations project and the inevitable regional heat waves experienced throughout the world every year.
    And, as a bonus, it mocks the true believers and those who need a sense of humor transplant!
    I like it! ALW: anthropogenic(?) local warming.

  36. Meanwhile Adelaide, South Australia is experiencing the longest stretch of overnight minimum temps below 5C since the 1980’s.

  37. pat says:
    July 6, 2010 at 8:00 pm
    PennState at it again:
    This seriously smacks of playground activity.
    My disaster is bigger than your disaster so me and MSM are going off to play somewhere else and don’t try to follow because we are older than you!

  38. Sorry guys, OT but I didn’t know where else to put it.
    How the hell do they get 23 as todays sunspot number?????

  39. wayne says: “Sissy, but good to to here you are still there… by skimming through some MSM news I thought you on the East coast were all dying while lying on the 193 degree tarmac”
    We get it from both sides here in DC. Last winter with our waist high snow we were told by people up north to trudge on through it. DC gets people from around the country and the world and most are from warmer places and don’t complain too much about heat. But in the media and on internet forums, there is always a disproportionate number of whiners.

  40. “Perhaps there was a hole in the upper atmosphere and whatever CO2 that was over my part of Florida leaked out.”
    According to the local Tampa weather on Fox the rain was from a stalled cold front!

  41. The usual offering from the AGW crowd: They find a single hot spot and blame it on AGW and when there’s a record low they say it’s weather not climate. They claim victory which ever way the coin hits the ground. But where were they during the last two winters when we had record lows in many areas of the northern hemisphere (NH) and aslo the SH, but in particular, this winter we had the largest land snow cover ever. Was this freeze a global freeze due to a global cool down or was it weather? If one hot spot in Baltimore is due AGW, then I wonder what a semi-global freeze is .

  42. In the “weather is not climate” department, weather is bimodal, whereas climate averages out the bimodal tendency of weather into a “normal” that is a statistical fiction. It is always “unseasonably cool” somewhere and “unseasonably warm” somewhere else. For the past week, the world weather was:
    http://ds.data.jma.go.jp/tcc/tcc/products/climate/synop/td20100707_e.png
    The bimodal nature of weather is particularly obvious in continental climes, where the weather is dominated by fronts: ahead of the front it is warmer than “normal” and behind the front it is cooler than “normal.” It is only “normal” in the hour or two that it takes a front to move over an area. Of course “fronts” are just reflections of how local climate is modulated by a variable jet stream. If the jet stream would just stay put, then we wouldn’t have all this “unexpected” “weather.”

  43. Our local paper is a big fan of Michael Mann. In an article this morning on the heat wave, it says:
    “The heat will contribute to what is quickly becoming the warmest year ever across the globe, said Michael Mann, a professor at Penn State’s Department of Meteorology and also director of the Penn State Earth System Science Center. The past few days could offer a glimpse into the future, he said.
    “Whether or not we can link it to climate change per se … we do know that it gives us the flavor of what’s in store.”
    Gag. Their article crowing about Penn State’s “investigation” was sickening.
    http://www.post-gazette.com/pg/10188/1070913-258.stm

  44. Totally wonderful ! I’m so glad that the Baltimore Rooftop got itself a new record high Temperature. Don’t forget to use it in your global mean Temperature calculation.
    Oh one more thing; before I forget.
    Please don’t use that rooftop Thermometer as a credible Temperature for some place up in Maine; or down in Atlanta; like 1200 km away; in fact I wouldn’t recommend using that value for down on the lawn next to the building.
    Just thought you should pay attention to the Nyquist Sampling theorem.
    That’s all I can think of at the moment.

  45. What is really foolish is calling “average” by the term “normal”. The term “normal” implies that a difference from the numerical average is abnormal.
    A human’s normal body temperature is (thermometer under the tongue) 98.6 degrees F. If the measured temperature differs by so little as less than 1 degree F, that is abnormal, indicating that something is wrong. With a measured difference of several degrees F from 98.6 degrees F, it is significantly abnormal, and the person is ill. Differences of a F degree or more are unusal, and measures need to be taken to get the body temperature back to normal.
    Near surface temperatures, particularly over land, vary widely, and in or near any urban area, and where the ground isn’t flat, differences in temperature can be markedly different from geographic point to point. These differences are not only not abnormal, but common.
    The “normal” temperature given by the weather folks is the temperature that only rarely is, and that, only at a given geographic point.
    When there is little variance in measured data points, averages may actually have meaning that possibly can be derived. When there are large differences in measured data points, data averaging is a meaningless arithmetical exercise.

  46. In the summer of 1954, I endured 12 weeks of basic training at Lackland Air Force Base adjacent to San Antonio, Texas, and then went on to tech school at Sheppard AFB at Wichita Falls. I found Texans to be great people, but not the temperatures/humidity.

  47. ian middleton says:
    July 7, 2010 at 12:45 am
    > Sorry guys, OT but I didn’t know where else to put it.
    > How the hell do they get 23 as todays sunspot number?????
    Two groups (those are 10 pts each), 1084 & 1086 though 1086 seems to have faded away. One spot in one group, two spots in the other. Add it all up and you get the “Sunspot Number” 23. The sunspot count is only 3. But all I see is 1.
    http://spaceweather.com/ has a little more.

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