1. Spring like warmth until early next week (March 18-19) then a chance of freeze/frost in the Southeast especially next Tuesday

2. Extended period of “Arctic” air descends upon Lower 48 for following week

3. Considerable rainfall for Gulf Coast and Southeast in the 2-4” range

4. Western Ridge builds finally after weeks to finally flip the script on cold air for last 10-days of March east of the Rockies

5. Denver looking at 7 to 10-inches of snowfall with 3-feet in the mountains

NWS Forecast snowfall for Colorado and Denver

7-10 inches at Denver Int’l with some changes likely — I’m betting to the upside.

NWS had 10-inches+ at KDIA earlier Tuesday morning, but reduced to 7”. Will watch for another change.

Spring Like Warmth Continues

132-million+ at/above 70°F across the Lower 48 with much above normal temperatures east of the Rockies

High Temperatures on Wednesday

Check out the temperature anomaly map! Widespread 20-25°F above normal centered on Minneapolis and Des Moines over to Chicago and Detroit, Cleveland and Albany, NY.

Short Term | Next 48-Hours

A storm system develops in the Lee of the Rockies on Wed into Thursday with significant snowfall for the mountains. I think Denver hits 10-inches w/range from 7-12” as the best forecast at this point.

Thunderstorms develop overnight Wed into Thursday morning across Iowa and Illinois with a blob of rain moving into Michigan. Only a slight risk of severe weather from SPC at this point.

Weather Systems for next 8-days

The storm system does not intensify much after departing the Plains, instead spreading out a front along the southern U.S. before clearing the Gulf Coast ushering in much colder air into early next week.

Threat for a freeze/frost into Atlanta and the Southeast!

Tuesday morning | March 19th Minimums

Watching Tuesday morning for frost/freeze as far south as Interstate 20.

7-Day Rainfall Total | NWS WPC

NWS WPC rainfall totals have come down again to 1.5 to 3” from eastern Texas to Atlanta.

7-Day Temperature Anomaly Chunks | Next 14-Days

Colder air will finally plunge out of Canada across the Eastern 2/3 of the U.S. while a ridge builds across the West and over Alaska.

Week 2 extends to March 26th, so almost done with the month ending on a significantly colder note.

15-day ECMWF Ensemble Median Snowfall

[The ensemble median sorts the model members but does not average them like the mean.]

March will end with cooler, seasonable conditions more typical of late winter/early Spring. There does not look like a threat of baking conditions like 2012 at all. That’s good for drought and farmers.

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