Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 494
NWS Storm Prediction Center Norman OK
135 PM MDT Mon Jul 1 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The Nebraska Panhandle into Northwest Nebraska
Western and Central South Dakota
* Effective this Monday afternoon and evening from 135 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Initial supercell thunderstorms should pose a threat for
large hail generally 1-2 inches in diameter this afternoon. As this
activity spreads eastward later this afternoon and evening, it
should grow upscale in more of a line/cluster, with a greater threat
for severe/damaging winds up to around 60-70 mph.
The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 30 miles north northwest
of Mobridge SD to 70 miles southeast of Chadron NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26035.
...Gleason
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 494
NWS Storm Prediction Center Norman OK
135 PM MDT Mon Jul 1 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The Nebraska Panhandle into Northwest Nebraska
Western and Central South Dakota
* Effective this Monday afternoon and evening from 135 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Initial supercell thunderstorms should pose a threat for
large hail generally 1-2 inches in diameter this afternoon. As this
activity spreads eastward later this afternoon and evening, it
should grow upscale in more of a line/cluster, with a greater threat
for severe/damaging winds up to around 60-70 mph.
The severe thunderstorm watch area is approximately along and 105
statute miles east and west of a line from 30 miles north northwest
of Mobridge SD to 70 miles southeast of Chadron NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU4).
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 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26035.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 494 SEVERE TSTM NE SD 011935Z - 020200Z
AXIS..105 STATUTE MILES EAST AND WEST OF LINE..
30NNW MBG/MOBRIDGE SD/ - 70SE CDR/CHADRON NE/
..AVIATION COORDS.. 90NM E/W /50S BIS - 61ENE BFF/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26035.
LAT...LON 45919848 42090009 42090418 45910285
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 494 Status Report Messages:
STATUS REPORT #2 ON WW 494
VALID 012350Z - 020040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WSW MHN
TO 50 SE BIS.
..WEINMAN..07/01/24
ATTN...WFO...CYS...LBF...UNR...ABR...
&&
STATUS REPORT FOR WS 494
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC031-075-020040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHERRY GRANT
$$
SDC021-045-049-065-069-075-085-089-095-107-117-119-121-123-129-
020040-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
CAMPBELL EDMUNDS FAULK
HUGHES HYDE JONES
LYMAN MCPHERSON MELLETTE
POTTER STANLEY SULLY
TODD TRIPP WALWORTH
$$
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.
$$
STATUS REPORT #1 ON WW 494
VALID 012235Z - 012340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 NW CDR TO
35 SW PHP TO 40 N MBG.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1506
..WEINMAN..07/01/24
ATTN...WFO...CYS...LBF...UNR...ABR...
&&
STATUS REPORT FOR WS 494
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC013-031-045-069-075-123-157-161-165-012340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BOX BUTTE CHERRY DAWES
GARDEN GRANT MORRILL
SCOTTS BLUFF SHERIDAN SIOUX
$$
SDC007-021-041-045-047-049-055-065-069-071-075-085-089-095-102-
107-117-119-121-123-129-012340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BENNETT CAMPBELL DEWEY
EDMUNDS FALL RIVER FAULK
HAAKON HUGHES HYDE
JACKSON JONES LYMAN
MCPHERSON MELLETTE OGLALA LAKOTA
POTTER STANLEY SULLY
TODD TRIPP 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 (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
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
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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