Wednesday, November 22, 2017
 
NOAA study shows pattern of fewer days with tornadoes, but more tornadoes on those days

Thursday, October 16, 2014

NOAA study shows pattern of fewer days with tornadoes, but more tornadoes on those days

Are tornadoes increasing? Not really, the number has remained relatively constant. What is changing is that there are fewer days with tornadoes each year, but on those days there are more tornadoes, according to a NOAA report published today in the journal Science.
NOAA’s Upcoming Weather Forecast Model Zeros In Earlier on Severe Weather

Monday, March 3, 2014

NOAA’s Upcoming Weather Forecast Model Zeros In Earlier on Severe Weather

Research behind the High-Resolution Rapid Refresh weather forecast model

Later this year, NOAA’s National Weather Service will usher into daily operations a sophisticated model called the High-Resolution Rapid Refresh, or HRRR, that will update forecasts hourly over the entire lower 48 United States at extremely sharp resolution using the latest observations from a network of ground and satellite-based sensors, radars and aircraft.

The HRRR provides forecast information at a resolution four times finer than what is currently used in hourly updated NOAA models.  This improvement in resolution from 13 to three kilometers is like giving forecasters an aerial photograph in which each pixel represents a neighborhood instead of a city.

Otkin, Jason

Monday, September 26, 2016

Otkin, Jason

Predicting rapidly-developing droughts based on plant stress

Growing up on a farm in Minnesota, Jason Otkin felt that the weather controlled everything in his life. In the middle of “farm country,” Otkin’s parents made a living herding cattle and growing corn, soybeans, alfalfa, and wheat. The farm was home to sandy ground that tended to dry up quickly in the summer after some hot and dry weather, causing crop conditions to rapidly deteriorate.

Q&A: What do Arctic ice and Atlantic hurricanes have in common?

Monday, June 20, 2016

Q&A: What do Arctic ice and Atlantic hurricanes have in common?

New research examines the North Atlantic Oscillation and its influence on global weather

The journal Nature Geoscience published a paper by Tom Delworth and his colleagues examining how a natural atmospheric force--the North Atlantic Oscillation--may be changing ocean currents in the North Atlantic. Among other impacts, the stronger ocean currents increase the amount of heat flowing toward polar areas, which could speed up Arctic ice melt and affect how hurricanes form. We asked Delworth a few questions about his study:

Research needed to resolve connections between Arctic warming and severe weather

Tuesday, May 19, 2015

Research needed to resolve connections between Arctic warming and severe weather

It is too soon to know if recent extreme cold weather such as the last two East Coast winters are linked to Arctic climate warming, according to new research published in the Journal of Climate by James Overland of NOAA, and other authors from North America, Asia and Europe.

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