Monday, May 24, 2010

MESO: Mesoscale Discussion 0687

ACUS11 KWNS 241250
SWOMCD
SPC MCD 241250
MNZ000-NDZ000-241345-

MESOSCALE DISCUSSION 0687
NWS STORM PREDICTION CENTER NORMAN OK
0750 AM CDT MON MAY 24 2010

AREAS AFFECTED...NORTHERN MN

CONCERNING...SEVERE THUNDERSTORM WATCH 211...

VALID 241250Z - 241345Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 211
CONTINUES.

SEVERE TSTM WATCH 211 CONTINUES UNTIL 14Z...WITH SEVERE HAIL
REMAINING POSSIBLE OVER THE NEXT FEW HOURS ACROSS NORTHERN MN.

STRONG/SEVERE ELEVATED TSTMS WILL LIKELY CONTINUE OVER THE NEXT FEW
HOURS IN A SOUTHWEST-NORTHEAST GENERAL CORRIDOR ACROSS NORTHERN MN.
THIS ACTIVITY IS BEING DRIVEN VIA AN ISENTROPIC LIFT/ELEVATED
MOISTURE TRANSPORT REGIME TO THE NORTH OF A SOUTHWEST-NORTHEAST
ORIENTED SURFACE FRONT ACROSS CENTRAL MN...WITH A RECENT CONVECTIVE
REINVIGORATION ACROSS NORTHWEST MN PERHAPS AIDED BY AN MCV OVER
EASTERN ND. ON THE EDGE OF A STRONG CAP PER THE 12Z ABERDEEN
OBSERVED RAOB...MODERATE INSTABILITY/STEEP LAPSE RATE
ENVIRONMENT...WITH 1800+ J/KG MUCAPE PER THE INTERNATIONAL FALLS 12Z
OBSERVED RAOB...WILL SUPPORT AT LEAST MARGINALLY SEVERE HAIL OVER
THE NEXT FEW HOURS.

..GUYER.. 05/24/2010

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

ATTN...WFO...DLH...MPX...FGF...

LAT...LON 46159534 46309660 47609626 48639395 48309195 47439272
46159534

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