Author Topic: SPC 4-8 Day Outlook (Here we go again)  (Read 4001 times)

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Offline WeatherHost

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SPC 4-8 Day Outlook (Here we go again)
« on: February 21, 2007, 08:24:01 AM »
Let's see how accurate the experimental outlook is.



Quote
DAY 4-8 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0343 AM CST WED FEB 21 2007
   
   VALID 241200Z - 011200Z
   
   A VIGOROUS UPPER-LEVEL TROUGH AND CLOSED-OFF LOW WILL MOVE EWD INTO
   THE PLAINS SATURDAY AND SWING NEWD ACROSS THE UPPER MS VALLEY
   SATURDAY NIGHT INTO SUNDAY. DYNAMICS AND VERTICAL SHEAR WITH THIS
   SYSTEM WILL BE VERY STRONG WHICH COUPLED WITH ADEQUATE LOW-LEVEL
   MOISTURE SHOULD RESULT IN A WIDESPREAD SEVERE WEATHER EVENT SATURDAY
   THROUGH SUNDAY
FROM THE ERN PLAINS EWD TO THE TN/OH VALLEYS. A
   SQUALL-LINE SHOULD BE ONGOING ACROSS THE PLAINS EARLY IN THE DAY 4
   PERIOD AND THE LINE WILL LIKELY CONTAIN SUPERCELLS AND/OR BOW
   ECHOES.  OTHER SEVERE STORMS ARE POSSIBLE AHEAD OF THE LINE AND NEAR
   THE UPPER-LOW CENTER ESPECIALLY AS SFC TEMPS WARM LATE SATURDAY
   MORNING INTO THE AFTERNOON. ALTHOUGH THE SPECIFIC TIMING OF THE
   UPPER-TROUGH AND AMOUNT OF MOISTURE RETURN STILL REMAIN
   UNCERTAIN...CONFIDENCE IS INCREASING THAT A SIGNIFICANT SEVERE
   WEATHER EPISODE WILL OCCUR ACROSS THE PLAINS AND MS VALLEY SATURDAY
   AND SUNDAY.

   
   TORNADOES/WIND DAMAGE AND LARGE HAIL WILL ALL BE POSSIBLE WITH THE
   BETTER ORGANIZED LINE SEGMENTS. ALTHOUGH WEAKENING OF THE
   SQUALL-LINE MAY OCCUR LATE SATURDAY NIGHT OR IN THE MORNING ON
   SUNDAY...REGENERATION OF THE LINE SHOULD OCCUR BY SUNDAY AFTERNOON.
   THE MOST LIKELY SEVERE THREAT SUNDAY WILL LIKELY OCCUR IN THE TN AND
   OH VALLEYS WITH LOCALLY CONCENTRATED AREAS OF SEVERE WEATHER.
A
   SEVERE THREAT MAY ALSO DEVELOP IN NRN AND CNTRL FL MONDAY WITH THE
   THREAT AREA SHIFTING SWD ACROSS FL ON TUESDAY. WHETHER THIS OCCURS
   IS DEPENDENT ON MANY FACTORS AND UNCERTAINTY FOR EARLY NEXT WEEK IS
   HIGHER ATTM.
   
   ..BROYLES.. 02/21/2007

Offline NoQuitters

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Re: SPC 4-8 Day Outlook (Here we go again)
« Reply #1 on: February 21, 2007, 11:23:02 AM »
I'm supposed to get it real early Saturday morning and all day Saturday. It will either be  :shock:  or  :lol:  depending on how you look at it. They're calling for almost 70 on Saturday which is almost unheard of in February for the KC area. Should be interesting.

 

anything