[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 262207
SWOMCD
SPC MCD 262207 
WIZ000-IAZ000-NEZ000-SDZ000-262330-

MESOSCALE DISCUSSION 1022
NWS STORM PREDICTION CENTER NORMAN OK
0507 PM CDT THU MAY 26 2005

AREAS AFFECTED...IA...FAR SE SD AND NE NEB

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 262207Z - 262330Z

SCATTERED STRONG STORMS WILL CONTINUE TO MOVE ESEWD ACROSS FAR NE
NEB...SE SD AND IA OVER THE NEXT 1 TO 3 HOURS. THE STRONGER CELLS
WILL HAVE A THREAT FOR HAIL AND ISOLATED WIND DAMAGE.

WATER VAPOR IMAGERY CURRENTLY SHOWS AN UPPER-LOW OVER SRN MANITOBA
WITH SEVERAL BANDS OF ASCENT MOVING EWD ACROSS THE NRN PLAINS AND
THE UPPER MS VALLEY. STORMS ARE DEVELOPING IN REGIONS OF STRONG
VERTICAL ASCENT IN A POST-FRONTAL AIR MASS WHERE SFC DEWPOINTS ARE
IN THE 40S F. THE RELATIVELY LOW DEWPOINTS ARE LIMITING SBCAPE
VALUES TO BETWEEN 500 TO 1000 J/KG. ALTHOUGH INSTABILITY IS
MARGINAL...500 MB TEMPS BELOW MINUS 20 C ARE CREATING STEEP
MID-LEVEL LAPSE RATES. THIS ALONG WITH UNIDIRECTIONAL FLOW AND 30 TO
50 KT OF DEEP LAYER SHEAR DUE TO A MID-LEVEL JET ACROSS THE NRN PART
OF THE CNTRL PLAINS ...WILL CREATE AN ENVIRONMENT FAVORABLE FOR HAIL
AND ISOLATED WIND DAMAGE. THE STORMS SHOULD CONTINUE TO MOVE EWD
ACROSS IA THIS EVENING...GRADUALLY WEAKENING AS INSTABILITY DROPS
ACROSS THE REGION.

..BROYLES.. 05/26/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DVN...ARX...DMX...FSD...OAX...

41419447 41749605 42219723 43089715 43269643 42749458
42769325 43319234 43389172 42779096 42129133 41709209
41439334 

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