Chilly Aoril Temps this Week as EL Niño Continues Intensifying

By: Steve Gregory, 8:16 PM GMT on April 20, 2015



COLDER WEATHER TO OVERSPREAD EASTERN HALF OF THE US
20-APR-15

A deepening upper air TROF now over the Canadian Plains will dig southeastward towards the Great Lakes with much cooler air flowing southward into the central and eastern US during the week.

The GFS has certainly proven itself over the past 7-10 days in capturing the cold air push out of Canada that has just begin to sweep into the Midwest behind a surface storm m...

2 WEEK FORECAST EL NINO Alaska Temps mjo

Updated: 8:28 PM GMT on April 20, 2015

Cooler – Wet Weather Ahead as El Niño Strengthens

By: Steve Gregory, 8:51 PM GMT on April 16, 2015



Wet and Cooler Pattern to Develop Next Week
16-APR-15

The milder Temps will continue across much of the nation except for the Rockies region into next week before a stronger, broad upper level TROF develops over the nation - with much cooler Temps developing later next week.

There is now excellent agreement among the global models on the overall pattern shift coming, which the GFS did seem to capture before the EURO model ...

2 WEEK FORECAST Severe Storms Alaska Temps EL NINO mjo

Updated: 9:08 PM GMT on April 16, 2015

T-Storm and Tornado Primer PLUS Mild but Wet Weather Ahead

By: Steve Gregory, 7:11 PM GMT on April 12, 2015



TODAY'S WEATHER UPDATE CAN BE FOUND BELOW

PowerPoint Shows cover Instability and Severe Convective Weather

Several people have asked for more information on how T-Storms, and in particular, what leads to Tornado formation. Since this is an extremely complicated MET specialty and a daunting venture to convey to non-professionals, I decided to upload a few PowerPoint Presentations from an Introductory to Meteorology course I taught r...

Tornado Thunderstorm Severe Storms 2 WEEK FORECAST Alaska Temps

Updated: 7:15 PM GMT on April 13, 2015

Severe WX Outbreak but relatively Mild Temps - IL TORNADO

By: Steve Gregory, 7:41 PM GMT on April 09, 2015

Severe WX Outbreak but relatively Mild Temps




The Storm Prediction Center Outlook thru tonite shows an Enhanced Risk for Severe T-Storms from the Ohio Valley to Texas – overlaid with the Radar Depiction from earlier today

NOTE: 10-APR...
An apparent EF-4 Wedge tornado came out of a Supercell in northern IL THU evening - lasting just over 2 hours (see Dr. Masters blog today for video). From Aerial video this AM, it app...

2 WEEK FORECAST Alaska Temps EL NINO SEVERE t-STORMS Tornado

Updated: 2:55 PM GMT on April 11, 2015

Wet Pattern Ahead as El Niño Raises Precip Potential for California & Warmer US Temps

By: Steve Gregory, 7:56 PM GMT on April 06, 2015



Western TROF & Short Waves to Bring Coast-to-Coast Precip
06-APR-15

Temperatures will average above normal across much of the central and eastern US as storm systems and Cooler Temps affect the West before moving eastward across the nation.

While the individual details vary – all global models are in excellent agreement on a very active weather pattern over the US for the next 10 or more days, with a mean TROF over the eas...

2 WEEK FORECAST MJO EL NINO Alaska Temps

Updated: 6:49 PM GMT on April 07, 2015

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About SteveGregory

Professional Forecaster experience since 1977, concentrating in Aviation, Tropical and Long Range forecasting.

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