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
Severe Thunderstorm Watch Number 478
NWS Storm Prediction Center Norman OK
700 PM CDT Thu Jun 27 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central North Dakota
Central South Dakota
* Effective this Thursday night and Friday morning from 700 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...A severe squall line will likely move east across much of
central North Dakota into north-central and central parts of South
Dakota later this evening into tonight. Scattered severe gusts
primarily in the 60-80 mph range are the main severe hazard.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles north northwest
of Minot ND to 45 miles south southeast of Pierre SD. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
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 473...WW 474...WW
475...WW 476...WW 477...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26045.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 478 SEVERE TSTM ND SD 280000Z - 280700Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
20NNW MOT/MINOT ND/ - 45SSE PIR/PIERRE SD/
..AVIATION COORDS.. 55NM E/W /18NNW MOT - 39SSE PIR/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26045.
LAT...LON 48530003 43779863 43770124 48530287
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 478 Status Report Messages:
STATUS REPORT #5 ON WW 478
VALID 280635Z - 280700Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W 9V9 TO
35 N PIR TO 45 SSW ABR.
REMAINING VALID PORTION OF WW 478 MAY BE ALLOWED TO EXPIRE AT
28/07Z.
..KERR..06/28/24
ATTN...WFO...BIS...ABR...
&&
STATUS REPORT FOR WS 478
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-059-065-069-085-119-280700-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO HAND HUGHES
HYDE LYMAN SULLY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 478
VALID 280545Z - 280640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 SSW PIR
TO 35 SSW MBG TO 45 WSW ABR TO 30 WSW ABR.
..EDWARDS..06/28/24
ATTN...WFO...BIS...ABR...
&&
STATUS REPORT FOR WS 478
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
SDC017-049-059-065-069-075-085-107-117-119-280640-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO FAULK HAND
HUGHES HYDE JONES
LYMAN POTTER STANLEY
SULLY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 478
VALID 280400Z - 280540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N PHP TO
20 SW MBG TO 20 SE BIS TO 50 SSW DVL.
..SQUITIERI..06/28/24
ATTN...WFO...BIS...ABR...
&&
STATUS REPORT FOR WS 478
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC029-043-047-051-280540-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
EMMONS KIDDER LOGAN
MCINTOSH
$$
SDC017-021-041-045-049-059-065-069-075-085-089-107-117-119-129-
280540-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO CAMPBELL DEWEY
EDMUNDS FAULK HAND
HUGHES HYDE JONES
LYMAN MCPHERSON POTTER
STANLEY SULLY WALWORTH
$$
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.
$$
STATUS REPORT #2 ON WW 478
VALID 280255Z - 280340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 S Y22 TO
30 ESE Y22 TO 40 WSW BIS TO 30 NW BIS TO 45 SSW DVL.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1458
..SQUITIERI..06/28/24
ATTN...WFO...BIS...ABR...
&&
STATUS REPORT FOR WS 478
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC015-029-043-047-051-059-085-103-280340-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BURLEIGH EMMONS KIDDER
LOGAN MCINTOSH MORTON
SIOUX WELLS
$$
SDC017-021-031-041-045-049-059-065-069-075-085-089-107-117-119-
129-280340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO CAMPBELL CORSON
DEWEY EDMUNDS FAULK
HAND HUGHES HYDE
JONES LYMAN MCPHERSON
POTTER STANLEY SULLY
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 478
VALID 280055Z - 280140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KARSTENS..06/28/24
ATTN...WFO...BIS...ABR...
&&
STATUS REPORT FOR WS 478
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NDC015-029-037-043-047-049-051-055-057-059-061-065-083-085-101-
103-280140-
ND
. NORTH DAKOTA COUNTIES INCLUDED ARE
BURLEIGH EMMONS GRANT
KIDDER LOGAN MCHENRY
MCINTOSH MCLEAN MERCER
MORTON MOUNTRAIL OLIVER
SHERIDAN SIOUX WARD
WELLS
$$
SDC017-021-031-041-045-049-059-065-069-075-085-089-107-117-119-
129-280140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUFFALO CAMPBELL CORSON
DEWEY EDMUNDS FAULK
HAND HUGHES HYDE
JONES LYMAN MCPHERSON
POTTER STANLEY SULLY
WALWORTH
$$
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 (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (90%)
|
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.