Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 581
NWS Storm Prediction Center Norman OK
210 PM CDT Wed Jul 31 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Minnesota
Far Northwest Wisconsin
Lake Superior
* Effective this Wednesday afternoon and evening from 210 PM
until 700 PM CDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A well-organized, bowing complex of thunderstorms should
continue to pose a threat for mainly severe/damaging winds up to
around 65-75 mph as it moves quickly east-northeastward this
afternoon and early evening.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 40 miles northwest of
Hibbing MN to 75 miles south southwest of Duluth MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 579...WW 580...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26040.
...Gleason
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 581
NWS Storm Prediction Center Norman OK
210 PM CDT Wed Jul 31 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Minnesota
Far Northwest Wisconsin
Lake Superior
* Effective this Wednesday afternoon and evening from 210 PM
until 700 PM CDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A well-organized, bowing complex of thunderstorms should
continue to pose a threat for mainly severe/damaging winds up to
around 65-75 mph as it moves quickly east-northeastward this
afternoon and early evening.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 40 miles northwest of
Hibbing MN to 75 miles south southwest of Duluth MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 579...WW 580...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26040.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 581 SEVERE TSTM MN WI LS 311910Z - 010000Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
40NW HIB/HIBBING MN/ - 75SSW DLH/DULUTH MN/
..AVIATION COORDS.. 45NM E/W /47S INL - 60NNE MSP/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26040.
LAT...LON 47789236 45829174 45829381 47789452
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 581 Status Report Messages:
STATUS REPORT #1 ON WW 581
VALID 312230Z - 312340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NW BRD TO
35 WSW HIB TO 40 NNW HIB TO 35 SSE INL.
..BROYLES..07/31/24
ATTN...WFO...DLH...
&&
STATUS REPORT FOR WS 581
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC001-017-035-115-137-312340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
AITKIN CARLTON CROW WING
PINE ST. LOUIS
$$
WIC013-031-312340-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BURNETT DOUGLAS
$$
LSZ145-312340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
DULUTH MN TO PORT WING WI
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
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.
weather.gov 
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