Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 303
NWS Storm Prediction Center Norman OK
140 PM CDT Thu Jun 25 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Extreme northwest Minnesota
Eastern North Dakota
* Effective this Thursday afternoon and evening from 140 PM until
900 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Thunderstorms are expected to increase in
coverage/intensity this afternoon along and ahead of a surface cold
front. The storm environment across eastern North Dakota will favor
a mix of supercells and multicell clusters capable of producing
large hail and damaging winds into this evening.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 20 miles west northwest
of Grand Forks ND to 75 miles south southwest of Fargo ND. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
28020.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 303 SEVERE TSTM MN ND 251840Z - 260200Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
20WNW GFK/GRAND FORKS ND/ - 75SSW FAR/FARGO ND/
..AVIATION COORDS.. 50NM E/W /17WNW GFK - 50NE ABR/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28020.
LAT...LON 48059639 45919627 45919856 48059877
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 303 Status Report Messages:
STATUS REPORT #5 ON WW 303
VALID 252330Z - 260040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NW VVV TO
25 SSE FAR TO 25 NNW DTL.
..BENTLEY..06/25/20
ATTN...WFO...FGF...BIS...
&&
STATUS REPORT FOR WS 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-167-260040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY WILKIN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 303
VALID 252235Z - 252340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NW VVV TO
45 SSW FAR TO 25 WSW FAR TO 25 N FAR TO 25 SE GFK TO 30 SSE HCO.
..BENTLEY..06/25/20
ATTN...WFO...FGF...BIS...
&&
STATUS REPORT FOR WS 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-107-119-167-252340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY NORMAN POLK
WILKIN
$$
NDC017-077-252340-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
CASS RICHLAND
$$
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.
$$
STATUS REPORT #3 ON WW 303
VALID 252125Z - 252240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE ABR
TO 45 SE JMS TO 50 NE JMS TO 30 WNW GFK TO 40 NE DVL.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 999
..BENTLEY..06/25/20
ATTN...WFO...FGF...BIS...
&&
STATUS REPORT FOR WS 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-107-119-167-252240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY NORMAN POLK
WILKIN
$$
NDC017-035-073-077-081-091-097-252240-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
CASS GRAND FORKS RANSOM
RICHLAND SARGENT STEELE
TRAILL
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 303
VALID 252035Z - 252140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 999
..WENDT..06/25/20
ATTN...WFO...FGF...BIS...
&&
STATUS REPORT FOR WS 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-107-119-167-252140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY NORMAN POLK
WILKIN
$$
NDC003-017-021-031-035-039-045-063-073-077-081-091-093-097-
252140-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS DICKEY
FOSTER GRAND FORKS GRIGGS
LAMOURE NELSON RANSOM
RICHLAND SARGENT STEELE
STUTSMAN TRAILL
$$
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.
$$
STATUS REPORT #1 ON WW 303
VALID 251930Z - 252040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..WENDT..06/25/20
ATTN...WFO...FGF...BIS...
&&
STATUS REPORT FOR WS 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-107-119-167-252040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY NORMAN POLK
WILKIN
$$
NDC003-017-021-031-035-039-045-063-073-077-081-091-093-097-
252040-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS DICKEY
FOSTER GRAND FORKS GRIGGS
LAMOURE NELSON RANSOM
RICHLAND SARGENT STEELE
STUTSMAN TRAILL
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (40%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.