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Wind: An Important Forgotten or Ignored Weather Variable

Guest opinion; Dr. Tim Ball “Every wind has its weather.” English philosopher Sir Francis Bacon (1561 –1621) What happens if the global average wind speed changes by one kilometer per hour? A great deal, including the rate of evaporation from the surface, a major mechanism of energy transfers in the atmosphere. The wind is not…

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Hermine becomes a hurricane in the Gulf of Mexico

Tropical Storm Hermine officially reached hurricane status on Thursday, Sept. 1, 2016, at 1:55 p.m. EDT. NOAA’s GOES-East satellite captured a visible image of the hurricane at 3:15 p.m. EDT (1915 UTC). The image shows a much more organized Hermine with bands of thunderstorms wrapping around its low-level center and blanketing the entire state of…

NASA's IMERG data from Aug. 8 to Aug. 15, 2016 showed over 20 inches (508 mm) of rainfall was estimated in large areas of southeastern Louisiana and extreme southern Mississippi. Even greater rainfall totals of 30 inches (762 mm) were indicated in a small area of Louisiana west of Lake Pontchartrain. Credits: NASA/JAXA, Hal Pierce

NASA Analyzes Weather Event That Caused Deadly Louisiana Flooding

Record-setting rainfall and flooding in southern Louisiana have been calculated at NASA with data from satellites. An extremely severe rainfall event hit the states of Louisiana and southern Mississippi when a very slow moving low pressure system continuously pulled tropical moisture from the Gulf of Mexico. Measurements by the Global Precipitation Measurement or GPM mission…

The GPM core satellite found heavy rainfall in storms on Aug. 11, 2016, at 10:26 p.m. EDT falling at a rate of over 3.9 inches (100.1 mm) per hour in one intense downpour in Louisiana. A few storm tops were reaching heights of over 9.9 miles (16 km). CREDIT
NASA/JAXA/Hal Pierce

Analysis of the ‘Landicaine’ over Louisiana

Yesterday on Twitter, Chip Knappenberger coined the term “landicane” to describe the low pressure center that has been gyrating over the northeastern Gulf of Mexico for days has now dropped very heavy precipitation over southeastern Louisiana. Dr. Roger Pielke Sr. has added in the exchange that his previous research points out that wet and marshy…