PDS coming up
Posted by JAC on 4/26/2011, 2:57 pm
 


MESOSCALE DISCUSSION 0589
  NWS STORM PREDICTION CENTER NORMAN OK
  0111 PM CDT TUE APR 26 2011
 
  AREAS AFFECTED...NORTHEAST TX AND FAR SOUTHEAST OK/NORTHERN
  LA/SOUTHERN AR
 
  CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
 
  VALID 261811Z - 262015Z
 
  THE SEVERE THREAT IS EXPECTED TO STEADILY INCREASE THROUGH MID/LATE
  AFTERNOON...INITIALLY ACROSS PORTIONS OF NORTHEAST TX AND INTO
  SOUTHEAST OK/NORTHERN LA/SOUTHERN AR. A RELATIVELY LONG LEAD
  TIME/DURATION PARTICULARLY DANGEROUS SITUATION /PDS/ TORNADO WATCH
  WILL LIKELY BE ISSUED BY MID AFTERNOON.

  WITH SURFACE CYCLOGENESIS UNDERWAY ACROSS THE SOUTHERN HIGH
  PLAINS...THE WARM SECTOR AIRMASS...EAST OF A NEAR I-35 CENTRAL TX
  DRYLINE...AND ALONG/SOUTH OF A SLOW NORTHWARD-RETURNING
  SOUTHWEST-NORTHEAST ORIENTED FRONTAL BOUNDARY FROM THE SOUTH DFW
  METRO INTO SOUTHERN AR...HAS ALREADY BECOME MODERATE TO STRONGLY
  UNSTABLE IN THE PRESENCE OF LITTLE CINH. AFTER A BRIEF BOUT OF
  SHORTWAVE RIDGING AT MIDDAY...THE LEADING EDGE OF AN UPPER JET
  STREAK APPEARS TO HAVE REACHED THE SOUTHERN HIGH PLAINS...WITH
  LIKELY-ASSOCIATED DEEP MIXED CUMULIFORM DEVELOPMENT NOW EVIDENT
  ACROSS EASTERN NM/NORTHWEST TX PER VISIBLE SATELLITE IMAGERY.
  INCREASING DEEP LAYER WIND FIELD ATOP THE MOIST/UNSTABLE WARM SECTOR
  WILL BE HIGHLY FAVORABLE FOR SUPERCELLS WITH AN INCREASING LARGE
  HAIL/TORNADO THREAT INTO THIS EVENING. STRENGTHENING LOWER
  TROPOSPHERIC WINDS THIS EVENING WILL ACCENTUATE THE RISK OF STRONG
  TORNADOES ESPECIALLY ACROSS THE ARKLATEX VICINITY/ADJACENT FAR
  SOUTHEAST OK.
 
  ..GUYER.. 04/26/2011
 
43
In this thread:
Todays out break - Fred, 4/26/2011, 11:58 am
< Return to the front page of the: message board | monthly archive this page is in
Post A Reply
This thread has been archived and can no longer receive replies.