Becoming negatively tilted, low at about 985mb
Posted by JAC on 2/25/2010, 4:21 pm



MESOSCALE DISCUSSION 0150
  NWS STORM PREDICTION CENTER NORMAN OK
  0211 PM CST THU FEB 25 2010
 
  AREAS AFFECTED...CENTRAL NY AND NERN PA
 
  CONCERNING...HEAVY SNOW
 
  VALID 252011Z - 252245Z
 
  SNOWFALL WITH RATES UP TO 1 IN/HR WILL SPREAD WWD ACROSS PORTIONS OF
  CENTRAL NY AND NERN PA.
 
  RECENT TRENDS IN VWP DATA INDICATE LOW LEVEL WINDS BEGINNING TO
  SLOWLY BACK TO NWLY WHILE MID LEVEL FLOW TURNS TO SELY...WHICH
  SUGGESTS THAT LOW TO MID LEVEL FRONTOGENETIC ZONE IS PIVOTING TOWARD
  MORE OF A NW-SE ORIENTATION AS THE UPPER TROUGH BECOMES INCREASINGLY
  NEGATIVELY TILTED. SURFACE STREAMLINE ANALYSIS ALSO SHOWS A GENERAL
  WWD SHIFT IN LOW LEVEL CONFLUENT ZONE...WHICH CORRESPONDS WITH
  RECENT INCREASE IN SNOWFALL INTENSITY ACROSS CENTRAL NY. THOUGH
  LARGE SCALE ASCENT WILL LIKELY REMAIN MODEST THROUGH THE REMAINDER
  OF THE AFTERNOON...BEFORE STRENGTHENING AGAIN DURING THE OVERNIGHT
  HOURS...MESOSCALE FORCING FOR ASCENT WITHIN THE LOW LEVEL
  DEFORMATION ZONE WILL LIKELY BE SUFFICIENT FOR SNOWFALL RATES UP TO
  1 IN/HR AT TIMES.
 
  ..GARNER.. 02/25/2010








34
In this thread:
Hype Cane or Real Bad Storm Thurs/Friday? - BobbiStorm, 2/23/2010, 9:10 pm
< 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This thread has been archived and can no longer receive replies.