SWOMCD
SPC MCD 262328
MNZ000-NDZ000-SDZ000-270030-
MESOSCALE DISCUSSION 1576
NWS STORM PREDICTION CENTER NORMAN OK
0628 PM CDT THU JUN 26 2008
AREAS AFFECTED...ND...WRN/NRN SD
CONCERNING...SEVERE THUNDERSTORM WATCH 610...
VALID 262328Z - 270030Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 610
CONTINUES.
STRONG/SEVERE STORMS CONTINUE TO MOVE GENERALLY EWD ACROSS WRN/CNTRL
ND...WITH ADDITIONAL STORMS ADJACENT TO THE WW OVER EXTREME NRN
PERKINS AND NERN CORSON COUNTIES IN FAR NRN SD AND OVER WRN GRIGGS
COUNTY ND JUST EAST OF THE WW. CONVECTION IS LOCATED WITHIN LOW
LEVEL MOISTURE/INSTABILITY AXIS EXTENDING FROM SD INTO WRN/CENTRAL
ND...IN ADVANCE OF SRN END OF A STRONG SHORT WAVE TROUGH MOVING EWD
ACROSS MT. VWP DATA FROM AREA RADARS EXHIBIT WINDS THAT VEER AND
INCREASE WITH HEIGHT RESULTING IN DEEP LAYER SHEAR OF 30-40
KT...SUPPORTIVE OF ORGANIZED SEVERE STORMS INCLUDING SUPERCELLS. A
NEW WW WILL LIKELY BE ISSUED WITHIN THE NEXT HR ACROSS ERN ND AREA.
FARTHER SOUTH...AIR MASS OVER WRN/CENTRAL SD IS VERY UNSTABLE WITH
MLCAPE OF 2500-3000 J/KG...AND OBJECTIVE GUIDANCE SUGGESTS CAP IS
WEAKENING. THIS IS CONFIRMED BY VISIBLE SATELLITE IMAGERY SHOWING
CONVECTION DEVELOPING OVER THE BLACK HILLS. DYNAMIC FORCING
ASSOCIATED WITH THE AFOREMENTIONED UPPER TROUGH SHOULD SPREAD EWD
TOWARD SD THIS EVENING WITH INCREASING POTENTIAL FOR THUNDERSTORM
DEVELOPMENT. AREA OVER WRN/CENTRAL SD WILL BE MONITORED FOR AN
ADDITIONAL WW.
..WEISS.. 06/26/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...FGF...ABR...BIS...UNR...
47839678 46199743 44419991 43210189 43260381 44920382
47050061 47949981 48819938 48989741
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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