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.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 608
NWS Storm Prediction Center Norman OK
405 PM MDT Tue Aug 6 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Montana
Western South Dakota
Northeast Wyoming
* Effective this Tuesday afternoon from 405 PM until Midnight
MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Widely scattered to scattered thunderstorms are forecast
to develop and intensify through the late afternoon and evening and
spread eastward across the Watch area. The stronger storms will
potentially yield a risk for severe gusts (60-70 mph). Large hail
(1 to 1.5 inches in diameter) may also accompany the more intense
storms.
The severe thunderstorm watch area is approximately along and 85
statute miles north and south of a line from 65 miles southwest of
Miles City MT to 45 miles north northeast of Rapid City 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 605...WW 606...WW 607...
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 450. Mean storm motion vector
27035.
...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 608 SEVERE TSTM MT SD WY 062205Z - 070600Z
AXIS..85 STATUTE MILES NORTH AND SOUTH OF LINE..
65SW MLS/MILES CITY MT/ - 45NNE RAP/RAPID CITY SD/
..AVIATION COORDS.. 75NM N/S /52SW MLS - 42NNE RAP/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 27035.
LAT...LON 46990683 45880270 43420270 44530683
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 608 Status Report Messages:
STATUS REPORT #3 ON WW 608
VALID 070310Z - 070440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 WNW CDR
TO 65 ENE GCC TO 15 E 4BQ TO 25 WNW BHK.
..THORNTON..08/07/24
ATTN...WFO...BYZ...UNR...
&&
STATUS REPORT FOR WS 608
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-025-070440-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER FALLON
$$
SDC019-033-063-081-093-103-070440-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUTTE CUSTER HARDING
LAWRENCE MEADE PENNINGTON
$$
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.
$$
STATUS REPORT #2 ON WW 608
VALID 070040Z - 070140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..08/07/24
ATTN...WFO...BYZ...UNR...
&&
STATUS REPORT FOR WS 608
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-017-025-075-070140-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER CUSTER FALLON
POWDER RIVER
$$
SDC019-033-063-081-093-103-070140-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUTTE CUSTER HARDING
LAWRENCE MEADE PENNINGTON
$$
WYC005-011-033-045-070140-
WY
. WYOMING COUNTIES INCLUDED ARE
CAMPBELL CROOK SHERIDAN
WESTON
$$
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.
$$
STATUS REPORT #1 ON WW 608
VALID 062240Z - 062340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..08/06/24
ATTN...WFO...BYZ...UNR...
&&
STATUS REPORT FOR WS 608
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC011-017-025-075-062340-
MT
. MONTANA COUNTIES INCLUDED ARE
CARTER CUSTER FALLON
POWDER RIVER
$$
SDC019-033-063-081-093-103-062340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
BUTTE CUSTER HARDING
LAWRENCE MEADE PENNINGTON
$$
WYC005-011-033-045-062340-
WY
. WYOMING COUNTIES INCLUDED ARE
CAMPBELL CROOK SHERIDAN
WESTON
$$
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 (50%)
|
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 (20%)
|
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 
@NWSSPC
