Observation of the onset of a blue jet into the stratosphere

We propose that the microsecond flashes are the optical equivalent of negative narrow bipolar events observed in radio waves. These are known to initiate lightning within the cloud and to…

Sea Ice Slows Ships In North China Ports

Chinese ports and marine safety authorities are on high alert as an expansion of sea ice makes it tougher for ships to berth and discharge at key energy product import…

Record Atlantic Hurricane Season?

There has been much alarum about last year being a “record Atlantic hurricane season”. As I pointed out at the time, the claim was based on the number of named…

A Strong Atmosphere River Approaches

The most powerful atmospheric river of the season so far is now imminent and will reach our coast later tomorrow (Monday).

North Pacific “Hurricanes”

The north Pacific Ocean will never experience a hurricane: a tropical storm with a sustained wind speed of 74 mph or more. They aren’t called hurricanes not because north Pacific…

Global Hurricane Activity Below Average In 2020

As the year draws to a close, we can note that, despite a busy Atlantic hurricane season, global hurricane activity has actually been well below average:

Christmas in Florida: Chilly forecast, falling iguanas

Florida is about to have a Christmas unlike any other in recent memory, and it may involve falling iguanas.

How Busy Was the 2020 Hurricane Season?

But the raw data for hurricane history is contaminated by changes in observing tools, in our understanding, and in the philosophy of whether a storm should be named. What explains…

HURRICANE SEASON 2020 UPDATE (11/29/2020)

The 2020 hurricane season in the Atlantic Basin is the most active in history with 30 named storms, breaking the previous record set in 2005 (which had 28). 6 storms…

*The role of weather on December 7th, 1941 and a little known important indirect benefit*

Unfortunately, the weather conditions on that particular day would play a role in the bombing of the U.S. naval base by Japanese fighter planes at Pearl Harbor near Honolulu, Hawaii.…

Roger Pielke Jr.’s 2020 Hurricane Season Recap

2020 Atlantic hurricane season ends today Here are updated CONUS normalized losses through 2020 2020 ranks 15th of 121 years Based on @JessicaWeinkle et al https://www.nature.com/articles/s41893-018-0165-2 And CONUS landfalling hurricanes…

An Important Finding about the September Labor Day Wildfires

Just extraordinary. The winds at that time were THE STRONGEST EVER OBSERVED at the site during those months for any wind direction from the north, east, southeast, or northwest.

Slower decay of landfalling Hurricanes in a warmer world — really?

The outcome of L&C 2020 is very overconfident when it comes to the dependency of the decay time on the SST. The R²=0.53 found in LC 2020 vanishes to an…

Claim: Climate change causes landfalling hurricanes to stay stronger for longer

Climate change is causing hurricanes that make landfall to take more time to weaken, reports a study published 11th November 2020 in leading journal, Nature.

The Election Day Weather Forecast: Who Will it Favor?

Reposted from Cliff Mass’s Weather Blog Tuesday, October 27, 2020  I got a call today from a political science professor from California:  he wanted to know how to get reliable…

Dead Birds Falling from Cold Events

Good scientists must examine all likely factors. So, I investigated the stories behind most documented bird die-offs. For the case of a single dead bird found in someone’s yard, that…

NOAA Confirm Heatwaves Are Declining In California

I have often published official graphs of individual stations, which show that heatwaves in California were more intense in the past. These run contra to NOAA’s official temperature record shown…

Italy experiences the coldest September in 50 years – with snowfall

Over the past weekend, temperatures in Italy plunged suddenly by between 10 and 15 degrees, resulting in the country’s coldest September in 50 years  and leading to snowfalls much earlier than…

Storm Forecast This Week Could End Some West Coast Wildfires

Last week, computer weather forecast models were hinting at the possibility of a weather system pattern change that could result in significant precipitation for California and the West Coast. While…

Multiple Fires Ignited, Major Dust Storm Develops, Tens of Thousands Out of Power, and I-90/US 2 Closed By Winds in Eastern Washington

Strong winds, gusting to 50-70 mph, has caused a dust storm that has closed major roads in eastern Washington (e.g., I-90 and US-2). Here is a recent satellite image, with…

Hurricane Laura was the latest storm to strengthen fast, but is rapid intensification really becoming more common?

Chris Slocum, Colorado State University Hurricane Laura blew up quickly as it headed for the Louisiana coast, intensifying from a tropical storm to a major hurricane in less than 24…

Hurricane Laura and the Wind Speed Dilemma

But here is the issue. What were the maximum sustained winds that occurred last night as Laura made landfall? Looking at all available stations, the highest sustained wind was 98…

Even with Laura, Louisiana Hurricanes Have Not Increased Since 1851

If we examine all of the hurricanes affecting Louisiana in the last 170 years in the National Hurricane Center’s HURDAT database (as summarized on Wikipedia) we find that there has…

FAIL: Despite Media Alarm, Back-to-Back Gulf Hurricanes Have Happened Before

Over the past few days, there’s been a persistent media buzz over the National Hurricane Center’s prediction of two hurricanes to hit New Orleans. Jason Dunning, a TV meteorologist at NBC2…