Scheduled for operation later this year, the National Weather Service will begin using a new High-Resolution Rapid Refresh Weather Forecast model or HRRR. The new forecast tool has worked well during a testing period and is expected to give forecasters better information to predict whether thunderstorms will become severe. For example, the ability of stormy weather to trigger a tornado outbreak may become more clear to forecasters in localized areas. (The above photo shows the El Reno tornado in Oklahoma May 31, 2013. The tornado was the widest ever recorded.)
Scientist say advanced physics and enhanced data processing have made a noticeable improvement in forecasting smaller scale weather. Forecasters using the new forecast model should be able to anticipate evolving weather from wind, fog, precipitation and thunderstorms on time scales of 12 hours or less.
The time line for release of the new forecast model for daily operations has not been announced. Read the complete article here
Meteorologist Rod Hill, follow me @KGWRodhill