SWOMCD
SPC MCD 090058
INZ000-ILZ000-090230-
MESOSCALE DISCUSSION 0591
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT TUE APR 08 2008
AREAS AFFECTED...CENTRAL IL...WEST CENTRAL AND NWRN IN
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 090058Z - 090230Z
A COLD FRONT IS MOVING EAST INTO THE MID MS RIVER VLY AS A
RELATIVELY STRONG UPPER DISTURBANCE PIVOTS TO THE NE ACRS THE
MIDWEST. AN UPWARD TREND IN STORM INTENSITY HAS BEEN OBSERVED IN
THE LAST HOUR PER REGIONAL RADAR MOSAIC AS THE CONVECTIVE LINE MOVES
INTO A MORE UNSTABLE AIRMASS. STORM INTENSITY MAY INCREASE OVER THE
NEXT FEW HOURS ACROSS CENTRAL IL...WEST CENTRAL AND NWRN IN. AS A
RESULT...STORM TRENDS WILL BE MONITORED FOR A POSSIBLE WW.
WATER VAPOR IMAGERY DEPICTS A MID LEVEL DRY SLOT MOVING INTO THE
AREA AND REGIONAL VWPS/00Z RAOBS INDICATE THAT STRONGER LOW TO MID
LEVEL WINDS ARE ACCOMPANYING THIS FEATURE AS THE LOW LEVEL JET MOVES
NE ACRS THE AREA. COOL MID LEVEL TEMPS /ILX RAOB -19 C 500 MB/ ARE
YIELDING MLCAPES BETWEEN 400 TO 800 J/KG PER MODIFIED 00 UTC ILX
SOUNDING. THIS WILL IN TURN SUPPORT THE POTENTIAL FOR A MARGINAL
HAIL THREAT WITH THE STRONGER CORES IN ADDITION TO AN ISOLATED WIND
THREAT. DESPITE SUFFICIENT INSTABILITY AND SHEAR...CLOUD COVER
THROUGHOUT MOST THE DAY MAY SOMEWHAT INHIBIT THE OVERALL THREAT BY
MEANS OF WEAK INSTABILITY. IF THE CONVECTIVE LINE CAN ORIENT MORE
PERPENDICULAR TO THE CLOUD BEARING WINDS...THE POTENTIAL EXISTS FOR
AN ISOLATED...YET FOCUSED CORRIDOR OF SEVERE WIND GUSTS TO OCCUR
OVER THE NEXT FEW HRS.
.SMITH.. 04/09/2008
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...IWX...IND...LOT...ILX...LSX...
40908814 41288734 41208692 40648679 39878737 39348795
38838911 38639015 38959004 40088952 40568932 40758874
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@PO.UIUC.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment