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05/12/2023, 8:19 am EDT
05/12/2023, 8:19 am EDT

NOAA/NHC Identify Event 1 of 2023 Occurred in Mid-January

On May 11th, NOAA/NHC determined an intense storm off the Northeast U.S. Coast gained subtropical characteristics and is considered the first event of the 2023 season. The next storm will be identified as AL02 although given the name Arlene if intensification occurs.
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05/11/2023, 5:40 am EDT
05/11/2023, 5:40 am EDT

Where Are Marine Heat Waves Located?

Beginning with the 2013-14 Northeast Pacific marine heat wave (MHW) known at the time as the “warm blob” regional very warm (and cool) ocean surface zones have accelerated and are affecting our climate. The most recent analysis identifying where MHW’s are currently located indicates 5 major events that are ongoing. Learn more from Climate Impact Company at GRAINCOM 2023 in Geneva, Switzerland May 15-17, 2023!
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05/10/2023, 8:29 am EDT
05/10/2023, 8:29 am EDT

Warm and Cool Regional SSTA and Their Correlation to “Ridiculously Resilient Ridge (and Trough)” Locations

A semi-permanent upper-level high-pressure ridge formed in the Northeast Pacific Ocean and extended to Western North America centered on the 2013-16 period. The upper ridge was well-correlated to the “warm blob” of surface and deep layer ocean water in the Northeast Pacific at that time. The “warm blob” was an example of a marine heat wave (MHW) and the attendant upper air pattern became known as the “ridiculously resilient ridge” (RRR) infamous for accelerating the long-term California drought.
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05/08/2023, 5:15 am EDT
05/08/2023, 5:15 am EDT

Heavy Rains for the Great Plains and Europe Ahead

Presence of an upper trough across South-central Europe much of the next 2 weeks entraining buoyant low-level atmosphere moisture from the much warmer than normal western Mediterranean Sea causes a large area of heavy rain in the latest GFS 15-day forecast.
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