Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 647
NWS Storm Prediction Center Norman OK
1210 PM CDT Thu Sep 3 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Minnesota
Eastern North Dakota
* Effective this Thursday afternoon and evening from 1210 PM
until 800 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...A cluster of storms will likely continue eastward across
northern Minnesota, with additional south-peripheral development or
redevelopment expected along the trailing gust front. The net result
will be an east/southeastward-shifting zone of potentially
repetitive severe storms through early evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles west southwest
of Grand Forks ND to 10 miles east of Bemidji MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
29025.
...Guyer
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 647
NWS Storm Prediction Center Norman OK
1210 PM CDT Thu Sep 3 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Minnesota
Eastern North Dakota
* Effective this Thursday afternoon and evening from 1210 PM
until 800 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...A cluster of storms will likely continue eastward across
northern Minnesota, with additional south-peripheral development or
redevelopment expected along the trailing gust front. The net result
will be an east/southeastward-shifting zone of potentially
repetitive severe storms through early evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles west southwest
of Grand Forks ND to 10 miles east of Bemidji MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).
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 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
29025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7 WW 647 SEVERE TSTM MN ND 031710Z - 040100Z AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE.. 45WSW GFK/GRAND FORKS ND/ - 10E BJI/BEMIDJI MN/ ..AVIATION COORDS.. 50NM N/S /39WSW GFK - 13ESE BJI/ HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..65 KNOTS. MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29025. LAT...LON 48579807 48399472 46659472 46839807 THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS FOR WOU7.
Watch 647 Status Report Messages:
STATUS REPORT #1 ON WW 647 VALID 032000Z - 032140Z SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 SE JMS TO 20 WNW FAR TO 35 SSE GFK TO 15 WSW TVF TO 20 ESE HCO. ..JEWELL..09/03/26 ATTN...WFO...FGF... && STATUS REPORT FOR WS 647 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC005-007-027-029-057-087-089-107-113-119-125-032140- MN . MINNESOTA COUNTIES INCLUDED ARE BECKER BELTRAMI CLAY CLEARWATER HUBBARD MAHNOMEN MARSHALL NORMAN PENNINGTON POLK RED LAKE $$ NDC003-017-032140- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BARNES CASS $$ 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 (20%) |
| Probability of 1 or more strong (EF2-EF5) tornadoes |
Low (10%) |
Wind
| Probability of 10 or more severe wind events |
Mod (60%) |
| Probability of 1 or more wind events > 65 knots |
Mod (60%) |
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.