Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 678
NWS Storm Prediction Center Norman OK
505 PM CDT Thu Sep 19 2024
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northeast Minnesota
Northwest Wisconsin
Lake Superior
* Effective this Thursday afternoon and evening from 505 PM until
1100 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Scattered thunderstorms will continue to develop across
northeastern Minnesota and track eastward across the watch area this
evening. Isolated intense/supercells are possible, capable of hail,
damaging winds, and a tornado or two.
The tornado watch area is approximately along and 50 statute miles
east and west of a line from 40 miles north northwest of Grand
Marais MN to 85 miles south of Duluth MN. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...CONTINUE...WW 677...
AVIATION...Tornadoes and 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 500. Mean
storm motion vector 23035.
...Hart
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 678
NWS Storm Prediction Center Norman OK
505 PM CDT Thu Sep 19 2024
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northeast Minnesota
Northwest Wisconsin
Lake Superior
* Effective this Thursday afternoon and evening from 505 PM until
1100 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Scattered thunderstorms will continue to develop across
northeastern Minnesota and track eastward across the watch area this
evening. Isolated intense/supercells are possible, capable of hail,
damaging winds, and a tornado or two.
The tornado watch area is approximately along and 50 statute miles
east and west of a line from 40 miles north northwest of Grand
Marais MN to 85 miles south of Duluth MN. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...CONTINUE...WW 677...
AVIATION...Tornadoes and 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 500. Mean
storm motion vector 23035.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 678 TORNADO MN WI LS 192205Z - 200400Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
40NNW GNA/GRAND MARAIS MN/ - 85S DLH/DULUTH MN/
..AVIATION COORDS.. 45NM E/W /55W YQT - 51NW EAU/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 23035.
LAT...LON 48288960 45609115 45609321 48289177
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 678 Status Report Messages:
STATUS REPORT #2 ON WW 678
VALID 200110Z - 200240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ENE BRD
TO 40 N IWD.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2090
..THORNTON..09/20/24
ATTN...WFO...DLH...
&&
STATUS REPORT FOR WT 678
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
WIC003-007-013-031-099-113-129-200240-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ASHLAND BAYFIELD BURNETT
DOUGLAS PRICE SAWYER
WASHBURN
$$
LSZ121-200240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI
$$
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.
$$
STATUS REPORT #1 ON WW 678
VALID 192320Z - 200040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..THORNTON..09/19/24
ATTN...WFO...DLH...
&&
STATUS REPORT FOR WT 678
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC017-031-075-115-137-200040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CARLTON COOK LAKE
PINE ST. LOUIS
$$
WIC003-007-013-031-099-113-129-200040-
WI
. WISCONSIN COUNTIES INCLUDED ARE
ASHLAND BAYFIELD BURNETT
DOUGLAS PRICE SAWYER
WASHBURN
$$
LSZ121-140-141-142-143-144-145-146-147-148-150-162-200040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CHEQUAMEGON BAY-BAYFIELD TO OAK POINT WI
GRAND PORTAGE TO GRAND MARAIS MN
GRAND MARAIS TO TACONITE HARBOR MN
TACONITE HARBOR TO SILVER BAY HARBOR MN
SILVER BAY HARBOR TO TWO HARBORS MN
TWO HARBORS TO DULUTH MN
DULUTH MN TO PORT WING WI
PORT WING TO SAND ISLAND WI
SAND ISLAND TO BAYFIELD WI
OAK POINT TO SAXON HARBOR WI
OUTER APOSTLE ISLANDS BEYOND 5 NM FROM MAINLAND
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM
$$
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
|
Mod (30%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (70%)
|
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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