For a second straight March, severe weather season has been literally non-existent. That can only be blamed or thanked on one major factor… Cold!
Without the clash of warm and cold, the ingredients aren’t there but the upcoming days will change that as an arctic high drops out of Canada while warmth and humidity gets tapped from the Gulf and Caribbean as a system crosses west to east.
Yesterday saw the issuance of the nations first severe thunderstorm watch and this is the latest of such since 1970!
Credit: NWS
Since Jan 1, the US tornado count is running an impressive 85% below normal.
Credit: NOAA
Through the 25th, March has hoisted NO tornadoes and that’s a record beating the old record set in 1969 of March 23rd when the first twister touched down.
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SPC now has a moderate risk for severe weather over the Southern Plains today!
Check out the HRRR surface based instability for this afternoon and tonight. Via @spann
Via James Spann
Here’s the surface charts off the GFS.
Credit: AccuWeather Pro
As the arctic high expands as it drifts into the Midwest and East, the heat and humidity slides off the coast with the severe weather threat also. Don’t be surprised if the SPC issues slight to moderate risks over the Carolinas next 24 hours cold invades and clashes with the H & H.
By the weekend, cold rules with arctic high pressure suppressing daytime temps a solid 20 below normal.
Quite the contrast between Thu PM’s 60s and 70s to 10s and 20s Sun AM.
Lows could approach 20F in the Big Cities while single digits are possible in the Appalachians. Keep in mind that it’s nearly April!
Be sure to check out today’s video for more details on the pattern and return of the arctic air late this week into the weekend.
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