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[Dave]

MESOSCALE DISCUSSION 0842
NWS STORM PREDICTION CENTER NORMAN OK
0703 PM CDT SAT MAY 19 2012

AREAS AFFECTED...S-CNTRL KS...N-CNTRL OK

CONCERNING...SEVERE THUNDERSTORM WATCH 281...282...

VALID 200003Z - 200100Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
281...282...CONTINUES.

SUMMARY...TORNADO THREAT WILL LIKELY WANE IN THE NEXT HOUR WITH
TSTMS DEVELOPING SWWD ALONG THE COLD FRONT ALONG THE KS/OK BORDER.

DISCUSSION...NUMEROUS TORNADO REPORTS HAVE OCCURRED IN THE PAST HOUR
WITH A TSTM CLUSTER JUST AHEAD OF AND ALONG A COLD FRONT ANALYZED
FROM AROUND 20 W CNK TO 20 SE P28. THIS THREAT HAS BEEN MAXIMIZED
ALONG THE N/S TO NE/SW INFLECTION POINT OF THE FRONT WITH THE
ORIENTATION OF THE CLUSTER...INTERCEPTING THE LOW-LEVEL MOIST AXIS
CHARACTERIZED BY LOWER 60S SURFACE DEW POINTS. THIS THREAT WILL WANE
AS LOW-LEVEL FLOW HAS COMMENCED WEAKENING PER TIME-SERIES OF ICT VWP
DATA. THIS WEAKENING SHOULD PERSIST WITH FLOW BECOMING INCREASINGLY
DIVERGENT AS WELL WITH NEB SHORT WAVE IMPULSE PROGRESSING AWAY FROM
THE REGION.

..GRAMS.. 05/20/2012


ATTN...WFO...ICT...OUN...DDC...

[cycloneye]

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RAPID CITY SD
254 PM MDT THU JUN 7 2012

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A

* TORNADO WARNING FOR...
CENTRAL CUSTER COUNTY IN SOUTHWESTERN SOUTH DAKOTA...

* UNTIL 345 PM MDT

* AT 250 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR ARGYLE...OR 9 MILES NORTHWEST OF DOWNTOWN
HOT SPRINGS...AND MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
ARGYLE...WIND CAVE VISITORS CENTER...BLUE BELL AND CUSTER PARK
GAME LODGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4353 10379 4380 10336 4363 10317 4348 10347
4348 10373
TIME...MOT...LOC 2054Z 231DEG 25KT 4352 10361

$$

RUDGE

[SaskatchewanScreamer]

heading into Manitoba, Canada

[SaskatchewanScreamer]