Severe Thunderstorm Warning 68, NWS Bismarck, ND

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
325 PM CDT FRI JUN 25 1999

CENTRAL NORTH DAKOTA HAS BEEN CAPPED THIS AFTERNOON BUT THE CAP
SHOULD DISSIPATE THIS EVENING.  CAPE IS RUNNING HIGH AND SOME SEVERE
THUNDERSTORMS ARE LIKELY.  THUNDERSTORMS HAVE BEEN DEVELOPING ACROSS
NORTH CENTRAL NORTH DAKOTA WHERE THE CAP IS WEAK...NORTH OF A WARM
FRONT FROM BISMARCK TO GRAND FORKS.  THE STORMS HAVE MOVED RAPIDLY
NORTHEAST.  A SURFACE LOW IN SOUTHWEST NORTH DAKOTA WILL MOVE
EASTWARD SO THAT BY SATURDAY MORNING...WEST AND CENTRAL ND SHOULD
SEE DRIER CONDITIONS AS THE SURFACE FLOW TURNS TO THE WEST. ANY
STRONG ACTIVITY SHOULD BE IN THE EAST PART OF THE STATE.  THE
REMAINDER OF THE WEEKEND WILL BE COOLER WITH WESTERLY SURFACE FLOW
AND STRONG SUBSIDENCE DEVELOPING AT MID LEVELS.

.BIS...NONE.
TSW

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NDZ001>053-260600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 472
STORM PREDICTION CENTER NORMAN OK
733 PM CDT FRI JUN 25 1999

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

   NORTH DAKOTA

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 800 PM UNTIL
100 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND WEST
OF A LINE FROM 65 MILES SOUTH OF BISMARCK NORTH DAKOTA TO 85 MILES
NORTH NORTHWEST OF JAMESTOWN NORTH DAKOTA.

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...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 470.  WATCH NUMBER 470 WILL NOT BE IN EFFECT AFTER 800 PM
CDT.  CONTINUE...WW 471...

DISCUSSION...CLUSTER OF SEVERE THUNDERSTORMS OVER SWRN ND IS
EXPECTED TO MOVE NEWD TOWARD CENTRAL ND INVOF FRONTAL BOUNDARY.
DEEP LAYER SHEAR PROFILES REMAIN FAVORABLE FOR SUPERCELL STORMS
DESPITE THE CURRENTLY WEAK LOW-LEVEL FLOW.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24035.

...VESCIO

455,1024 480,1013 480,0971 455,0984

NDZ001>053-260600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 472
STORM PREDICTION CENTER NORMAN OK
733 PM CDT FRI JUN 25 1999

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

   NORTH DAKOTA

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 800 PM UNTIL
100 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND WEST
OF A LINE FROM 65 MILES SOUTH OF BISMARCK NORTH DAKOTA TO 85 MILES
NORTH NORTHWEST OF JAMESTOWN NORTH DAKOTA.

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...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 470.  WATCH NUMBER 470 WILL NOT BE IN EFFECT AFTER 800 PM
CDT.  CONTINUE...WW 471...

DISCUSSION...CLUSTER OF SEVERE THUNDERSTORMS OVER SWRN ND IS
EXPECTED TO MOVE NEWD TOWARD CENTRAL ND INVOF FRONTAL BOUNDARY.
DEEP LAYER SHEAR PROFILES REMAIN FAVORABLE FOR SUPERCELL STORMS
DESPITE THE CURRENTLY WEAK LOW-LEVEL FLOW.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24035.

...VESCIO

455,1024 480,1013 480,0971 455,0984