WeatherNation Blog

Snow, Cold and Severe Threat in Forecast

Winter’s Last Gasp?
I sure hope so… Not sure how much of this extended winter weather I can take. The cold, snow and extra long commutes are wearing me thin! The National Weather Service continues a number of winter weather headlines.

VALID 00Z MON MAR 18 2013 – 00Z WED MAR 20 2013 …BLIZZARD CONDITIONS 

ARE COMING TO THE NORTH CENTRAL U.S. FOLLOWED BY TEMPERATURES 20 

TO 30 DEGREES BELOW AVERAGE… 

…SNOW AND ICE STORM FOR PARTS OF THE NORTHERN MID-ATLANTIC INTO 

THE NORTHEAST BEGINNING THIS EVENING..

For details on the latest warnings, watches and advisories nationwide you can click here:
National Snowfall
National snowfall over the next 3 days could be quite heavy across parts of the northern tier of the nation, especially the Midwest, Northeast and Northwest.
What A Difference… 2012 vs. 2013
Take a look at how little snow cover was left across the nation on March 17th, 2012. Other than the higher elevations out west and those in the Northeast, it was nearly all gone! There is still nearly 27% snow cover across the nation this year!
National Precipitation Forecast
NOAA’s HPC 5 day precipiation forecast suggests that several inches of precipitation could fall across the eastern half of the country and also in the west.
Threat for severe:
DAY 2 CONVECTIVE OUTLOOK
   NWS STORM PREDICTION CENTER NORMAN OK
   1229 PM CDT SUN MAR 17 2013

   VALID 181200Z - 191200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS MS...AL...NWRN
   GA...CNTRL AND ERN KY AND TN...

   ...SYNOPSIS...
   A NEGATIVELY TILTED UPPER TROUGH AXIS WILL EXTEND FROM THE UPPER MS
   VALLEY SEWD INTO THE OH VALLEY BY 18Z AND WILL RAPIDLY MOVE NEWD
   ACROSS THE GREAT LAKES BY EVENING. HOWEVER...A SECONDARY JET MAX
   WILL ALSO STRENGTHEN OVERNIGHT INTO THE MID MS VALLEY...AND WILL
   RESULT IN WIDESPREAD HEIGHT FALLS FROM THE OH/TN VALLEYS INTO THE
   SERN STATES.

   ...KY/TN/MS/AL/GA/FL PANHANDLE...
   A SURFACE LOW IS FORECAST TO MOVE FROM SRN IL/WRN KY NEWD INTO
   INDIANA BETWEEN 12-18Z...WITH A COLD FRONT TRAILING SWWD INTO
   TN...NRN MS AND SRN AR. STRONG FORCING FOR ASCENT WILL ACCOMPANY
   THIS LOW AND THE NRN PORTION OF THE COLD FRONT IN ASSOCIATION WITH
   THE NEGATIVE TILT SHORTWAVE TROUGH. WIDESPREAD RAIN AND
   THUNDERSTORMS SHOULD BE ONGOING ACROSS NRN MS/AL...TN...AND KY AS A
   RESULT. WITH RELATIVELY STRONG MEAN FLOW...SOME OF THIS CONVECTION
   MAY BE SEVERE WITH MAINLY DAMAGING WINDS AND MARGINAL HAIL.

Spring Begins Wednesday 

Although the calendar will say Spring, it’ll feel more like Winter for folks in the northeast quadrant of the nation through much of the week. Below are high temperatures expected Wednesday with the departure from normal tomorrow (Tuesday).

 

Northern Lights… A very nice display of northern lights was visible Saturday night across parts of the northern latitudes. Here is a great shot from Neva Andersen.

 

Thanks for checking in and have a great week ahead!  Don’t forget to follow me on Twitter @TNelsonWNTV

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