Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 764
NWS STORM PREDICTION CENTER NORMAN OK
535 PM CDT THU SEP 7 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL MINNESOTA
SOUTHEAST NORTH DAKOTA
LAKE SUPERIOR
EFFECTIVE THIS THURSDAY AFTERNOON FROM 535 PM UNTIL MIDNIGHT CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST
SOUTHWEST OF FARGO NORTH DAKOTA TO 50 MILES NORTHEAST OF SILVER
BAY MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...LINE OF SCATTERED THUNDERSTORMS HAS DEVELOPED ALONG
SURFACE COLD FRONT FROM EASTERN ND ACROSS NORTHERN MN. AIRMASS
AHEAD OF LINE IS MODERATELY UNSTABLE...WITH RELATIVELY STEEP LAPSE
RATES AND SUFFICIENT VERTICAL SHEAR TO PROMOTE A RISK OF LARGE HAIL
AND GUSTY WINDS FOR THE NEXT FEW HOURS. ACTIVITY WILL LIKELY WEAKEN
AFTER DARK AS DIURNAL COOLING BEGINS AND INSTABILITY DIMINISHES.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 30030.
...HART
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 764
NWS STORM PREDICTION CENTER NORMAN OK
535 PM CDT THU SEP 7 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL MINNESOTA
SOUTHEAST NORTH DAKOTA
LAKE SUPERIOR
EFFECTIVE THIS THURSDAY AFTERNOON FROM 535 PM UNTIL MIDNIGHT CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST
SOUTHWEST OF FARGO NORTH DAKOTA TO 50 MILES NORTHEAST OF SILVER
BAY MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...LINE OF SCATTERED THUNDERSTORMS HAS DEVELOPED ALONG
SURFACE COLD FRONT FROM EASTERN ND ACROSS NORTHERN MN. AIRMASS
AHEAD OF LINE IS MODERATELY UNSTABLE...WITH RELATIVELY STEEP LAPSE
RATES AND SUFFICIENT VERTICAL SHEAR TO PROMOTE A RISK OF LARGE HAIL
AND GUSTY WINDS FOR THE NEXT FEW HOURS. ACTIVITY WILL LIKELY WEAKEN
AFTER DARK AS DIURNAL COOLING BEGINS AND INSTABILITY DIMINISHES.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 30030.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 764 SEVERE TSTM MN ND LS 072235Z - 080500Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
70WSW FAR/FARGO ND/ - 50NE BFW/SILVER BAY MN/
..AVIATION COORDS.. 45NM N/S /57WSW FAR - 66SW YQT/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 30030.
LAT...LON 47259818 48439063 46999063 45799818
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 764 Status Report Messages:
STATUS REPORT #2 ON WW 764
VALID 080030Z - 080140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 E JMS TO
20 WNW FAR TO 40 SE GFK.
..PETERS..09/08/06
ATTN...WFO...DLH...FGF...
&&
STATUS REPORT FOR WS 764
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC001-005-007-017-021-027-029-031-035-051-057-061-071-075-087-
107-111-137-159-167-080140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
AITKIN BECKER BELTRAMI
CARLTON CASS CLAY
CLEARWATER COOK CROW WING
GRANT HUBBARD ITASCA
KOOCHICHING LAKE MAHNOMEN
NORMAN OTTER TAIL ST. LOUIS
WADENA WILKIN
$$
NDC003-017-073-077-081-080140-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS RANSOM
RICHLAND SARGENT
$$
LSZ141-142-143-144-080140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GRAND MARAIS TO TACONITE HARBOR MN
TACONITE HARBOR TO SILVER BAY HARBOR MN
SILVER BAY HARBOR TO TWO HARBORS MN
TWO HARBORS TO DULUTH MN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 764
VALID 072330Z - 080040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..PETERS..09/07/06
ATTN...WFO...DLH...FGF...
&&
STATUS REPORT FOR WS 764
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC001-005-007-017-021-027-029-031-035-051-057-061-071-075-087-
107-111-137-159-167-080040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
AITKIN BECKER BELTRAMI
CARLTON CASS CLAY
CLEARWATER COOK CROW WING
GRANT HUBBARD ITASCA
KOOCHICHING LAKE MAHNOMEN
NORMAN OTTER TAIL ST. LOUIS
WADENA WILKIN
$$
NDC003-017-073-077-081-080040-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS RANSOM
RICHLAND SARGENT
$$
LSZ141-142-143-144-080040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GRAND MARAIS TO TACONITE HARBOR MN
TACONITE HARBOR TO SILVER BAY HARBOR MN
SILVER BAY HARBOR TO TWO HARBORS MN
TWO HARBORS TO DULUTH MN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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