SWOMCD
SPC MCD 202220
INZ000-ILZ000-WIZ000-IAZ000-MOZ000-KSZ000-202345-
MESOSCALE DISCUSSION 1730
NWS STORM PREDICTION CENTER NORMAN OK
0520 PM CDT FRI AUG 20 2010
AREAS AFFECTED...ERN KS...NRN AND CNTRL MO...SE IA...WRN AND NRN IL
CONCERNING...SEVERE THUNDERSTORM WATCH 628...
VALID 202220Z - 202345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 628
CONTINUES.
A SEVERE THREAT ACROSS THE WRN AND CNTRL PART OF WW 628 WILL
CONTINUE THROUGH EARLY THIS EVENING. WIND DAMAGE AND HAIL WILL BE
THE PRIMARY THREATS AND THE WW MAY NEED TO BE LOCALLY EXTENDED IF
THE THREAT PERSISTS BEYOND WW EXPIRATION.
A BOWING LINE-SEGMENT ONGOING NEAR THE INTERSECTION OF SE IA...NE MO
AND WRN IL WILL MOVE EWD ACROSS WRN AND NRN IL OVER THE NEXT FEW
HOURS. THE LATEST SFC ANALYSIS SHOWS SFC DEWPOINTS IN THE LOWER TO
MID 70 F AHEAD OF THE LINE WHICH IS HELPING TO CREATE A MODERATELY
UNSTABLE ENVIRONMENT. IN ADDITION...THE DAVENPORT WSR-88D VWP SHOWS
ABOUT 40 KT OF 0-6 KM SHEAR WITH 30 KT OF FLOW IN THE 0-1 KM LAYER.
THIS SHOULD SUPPORT A WIND DAMAGE THREAT WITH THE STRONGER ELEMENTS
EMBEDDED IN THE LINE CURRENTLY MOVING INTO WRN IL. FURTHER TO THE
SOUTHWEST...MODERATE TO STRONG INSTABILITY IS PRESENT ACROSS ERN KS
AND NW MO SUGGESTING REDEVELOPMENT OF SEVERE STORMS WILL BE POSSIBLE
EARLY THIS EVENING. IF A BOWING LINE-SEGMENT CAN ALSO DEVELOP
FURTHER WEST...THEN THE WIND DAMAGE THREAT MAY ALSO INCREASE ACROSS
THE WRN PART OF THE WATCH EARLY THIS EVENING.
..BROYLES.. 08/20/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LOT...ILX...MKX...LSX...DVN...ARX...SGF...DMX...
EAX...TOP...
LAT...LON 41879241 41289351 40139457 38519525 37799497 38179283
39199111 40038938 40888747 41938718 42648784 42649050
41879241
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