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.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 255
NWS Storm Prediction Center Norman OK
530 PM CDT Fri May 17 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Minnesota
Eastern North Dakota
Northern South Dakota
* Effective this Friday afternoon from 530 PM until Midnight CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A broken band of strong to severe thunderstorms will
likely move east into the Watch area during the evening from the
west. Severe gusts ranging from 60-70 mph and perhaps large hail
are the main threats with the more intense thunderstorms.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 20 miles north of Hallock
MN to 20 miles east southeast of Mobridge SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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 253...WW 254...
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 400. Mean storm motion vector
25035.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 255 SEVERE TSTM MN ND SD 172230Z - 180500Z
AXIS..85 STATUTE MILES EAST AND WEST OF LINE..
20N HCO/HALLOCK MN/ - 20ESE MBG/MOBRIDGE SD/
..AVIATION COORDS.. 75NM E/W /53SSE YWG - 61N PIR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 25035.
LAT...LON 49029506 45419830 45410180 49029882
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 255 Status Report Messages:
STATUS REPORT #6 ON WW 255
VALID 180440Z - 180500Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE MBG
TO 35 SE JMS TO 15 NNW ROX.
REMAINING VALID PORTION OF WW 255 MAY BE ALLOWED TO EXPIRE AT
18/05Z.
..KERR..05/18/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC089-135-180500-
MN
. MINNESOTA COUNTIES INCLUDED ARE
MARSHALL ROSEAU
$$
NDC021-045-073-081-180500-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
DICKEY LAMOURE RANSOM
SARGENT
$$
SDC013-045-089-129-180500-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN EDMUNDS MCPHERSON
WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 255
VALID 180325Z - 180440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ESE MBG
TO 35 SE JMS TO 35 NNW FAR TO 25 NW TVF TO 15 NNW ROX.
..KERR..05/18/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC089-135-180440-
MN
. MINNESOTA COUNTIES INCLUDED ARE
MARSHALL ROSEAU
$$
NDC021-045-073-081-180440-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
DICKEY LAMOURE RANSOM
SARGENT
$$
SDC013-045-089-129-180440-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN EDMUNDS MCPHERSON
WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 255
VALID 180235Z - 180340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE MBG
TO 30 S JMS TO 20 ENE JMS TO 40 WSW GFK TO 20 N HCO.
..KERR..05/18/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-069-089-107-113-119-125-135-180340-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY KITTSON MARSHALL
NORMAN PENNINGTON POLK
RED LAKE ROSEAU
$$
NDC003-017-021-035-045-073-081-091-097-180340-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS DICKEY
GRAND FORKS LAMOURE RANSOM
SARGENT STEELE TRAILL
$$
SDC013-045-089-129-180340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN EDMUNDS MCPHERSON
WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 255
VALID 180135Z - 180240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW MBG
TO 40 N MBG TO 50 WNW JMS TO 40 ESE DVL TO 30 NW HCO.
..KERR..05/18/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-069-089-107-113-119-125-135-180240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY KITTSON MARSHALL
NORMAN PENNINGTON POLK
RED LAKE ROSEAU
$$
NDC003-017-021-031-035-039-045-047-051-063-067-073-081-091-093-
097-099-180240-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS DICKEY
FOSTER GRAND FORKS GRIGGS
LAMOURE LOGAN MCINTOSH
NELSON PEMBINA RANSOM
SARGENT STEELE STUTSMAN
TRAILL WALSH
$$
SDC013-021-045-089-129-180240-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN CAMPBELL EDMUNDS
MCPHERSON WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 255
VALID 180035Z - 180140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N BIS TO
40 SSW DVL TO 25 SE DVL TO 55 WNW HCO.
..DEAN..05/18/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-069-089-107-113-119-125-135-180140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY KITTSON MARSHALL
NORMAN PENNINGTON POLK
RED LAKE ROSEAU
$$
NDC003-017-021-031-035-039-045-047-051-063-067-073-081-091-093-
097-099-180140-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES CASS DICKEY
FOSTER GRAND FORKS GRIGGS
LAMOURE LOGAN MCINTOSH
NELSON PEMBINA RANSOM
SARGENT STEELE STUTSMAN
TRAILL WALSH
$$
SDC013-021-031-045-089-129-180140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN CAMPBELL CORSON
EDMUNDS MCPHERSON WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 255
VALID 172320Z - 180040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DEAN..05/17/24
ATTN...WFO...FGF...BIS...ABR...
&&
STATUS REPORT FOR WS 255
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC027-069-089-107-113-119-125-135-180040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
CLAY KITTSON MARSHALL
NORMAN PENNINGTON POLK
RED LAKE ROSEAU
$$
NDC003-005-017-019-021-027-031-035-039-045-047-051-063-067-071-
073-081-091-093-095-097-099-180040-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BARNES BENSON CASS
CAVALIER DICKEY EDDY
FOSTER GRAND FORKS GRIGGS
LAMOURE LOGAN MCINTOSH
NELSON PEMBINA RAMSEY
RANSOM SARGENT STEELE
STUTSMAN TOWNER TRAILL
WALSH
$$
SDC013-021-031-045-089-129-180040-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BROWN CAMPBELL CORSON
EDMUNDS MCPHERSON WALWORTH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
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.