Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 473
NWS Storm Prediction Center Norman OK
100 PM MDT Thu Jun 27 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Eastern Montana
North Central Wyoming
* Effective this Thursday afternoon and evening from 100 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
A tornado or two possible
SUMMARY...Thunderstorms are expected to intensify across central
Montana this afternoon and spread eastward across the watch area.
Several severe storms are expected, with a risk of large hail and
damaging winds. A tornado or two is also possible - mainly in
eastern Montana.
The severe thunderstorm watch area is approximately along and 110
statute miles north and south of a line from 45 miles north
northwest of Billings MT to 35 miles east of Glendive MT. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
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
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Hart
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 473
NWS Storm Prediction Center Norman OK
100 PM MDT Thu Jun 27 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Eastern Montana
North Central Wyoming
* Effective this Thursday afternoon and evening from 100 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
A tornado or two possible
SUMMARY...Thunderstorms are expected to intensify across central
Montana this afternoon and spread eastward across the watch area.
Several severe storms are expected, with a risk of large hail and
damaging winds. A tornado or two is also possible - mainly in
eastern Montana.
The severe thunderstorm watch area is approximately along and 110
statute miles north and south of a line from 45 miles north
northwest of Billings MT to 35 miles east of Glendive MT. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
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
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26030.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 473 SEVERE TSTM MT WY 271900Z - 280200Z
AXIS..110 STATUTE MILES NORTH AND SOUTH OF LINE..
45NNW BIL/BILLINGS MT/ - 35E GDV/GLENDIVE MT/
..AVIATION COORDS.. 95NM N/S /37NNW BIL - 55WNW DIK/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26030.
LAT...LON 47990889 48720406 45540406 44810889
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 473 Status Report Messages:
STATUS REPORT #3 ON WW 473
VALID 272350Z - 280040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WNW GCC
TO 25 SE 4BQ TO 10 NW BHK TO 20 NNE GDV TO 80 N OLF.
..KARSTENS..06/27/24
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 473
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-019-021-025-083-085-091-109-280040-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER DANIELS DAWSON
FALLON RICHLAND ROOSEVELT
SHERIDAN WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 473
VALID 272255Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S SHR TO
15 WSW 4BQ TO 35 ESE MLS TO 30 WSW GDV TO 10 W OLF TO 70 NNE GGW.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1450
..KARSTENS..06/27/24
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 473
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-017-019-021-025-055-075-079-083-085-091-109-272340-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER CUSTER DANIELS
DAWSON FALLON MCCONE
POWDER RIVER PRAIRIE RICHLAND
ROOSEVELT SHERIDAN WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 473
VALID 272210Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 N WRL TO
40 NNE SHR TO 40 SSW MLS TO 20 NW MLS TO 55 S GGW TO 20 NNW GGW.
..KARSTENS..06/27/24
ATTN...WFO...BYZ...GGW...
&&
STATUS REPORT FOR WS 473
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-017-019-021-025-055-071-075-079-083-085-091-105-109-
272340-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER CUSTER DANIELS
DAWSON FALLON MCCONE
PHILLIPS POWDER RIVER PRAIRIE
RICHLAND ROOSEVELT SHERIDAN
VALLEY WIBAUX
$$
WYC033-272340-
WY
. WYOMING COUNTIES INCLUDED ARE
SHERIDAN
$$
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 (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
|
High (70%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (60%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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 
@NWSSPC
