Tornado Watch 413

Issued

May 27, 2006, 4:46 PM CDT (21:46 UTC)

Expired

May 28, 2006, 12:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 1003May 27, 4:26 PM CDT

000 
WWUS20 KWNS 272145
SEL3  
SPC WW 272145
NDZ000-280500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 413
NWS STORM PREDICTION CENTER NORMAN OK
445 PM CDT SAT MAY 27 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND EASTERN NORTH DAKOTA

EFFECTIVE THIS SATURDAY AFTERNOON FROM 445 PM UNTIL MIDNIGHT CDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH NORTHWEST OF
DEVILS LAKE NORTH DAKOTA TO 60 MILES SOUTH SOUTHEAST OF BISMARCK
NORTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 412...

DISCUSSION...EXTREME INSTABILITY AHEAD OF NEARLY STATIONARY FRONTAL
ZONE THAT EXTENDS FROM NERN ND SWWD TO SW OF BIS. SEVERE
THUNDERSTORMS WILL RAPIDLY DEVELOP VICINITY OF THE FRONT WITH SHEAR
SUFFICIENT FOR SUPERCELLS.  WHILE VERY LARGE HAIL WILL BE LIKELY IN
STRONGEST SUPERCELLS...TORNADOES ARE ALSO POSSIBLE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 23030.


...HALES

Tornado Watches in North Dakota, 2006Every tornado watch in 2006

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.