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.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 522
NWS Storm Prediction Center Norman OK
205 PM MDT Sat Jul 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Montana
* Effective this Saturday afternoon and evening from 205 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Intense thunderstorms are expected to form over
north-central and northeast Montana this afternoon and track
east-southeastward across the watch area. Very large hail and
damaging winds are possible with the stronger cells.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 15 miles south of Havre
MT to 10 miles south southeast of Sidney MT. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 522 SEVERE TSTM MT 132005Z - 140300Z
AXIS..45 STATUTE MILES NORTH AND SOUTH OF LINE..
15S HVR/HAVRE MT/ - 10SSE SDY/SIDNEY MT/
..AVIATION COORDS.. 40NM N/S /12S HVR - 42SSW ISN/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29030.
LAT...LON 48980977 48220412 46910412 47680977
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 522 Status Report Messages:
STATUS REPORT #4 ON WW 522
VALID 140100Z - 140240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ENE LWT
TO 25 ESE SDY.
..LYONS..07/14/24
ATTN...WFO...TFX...GGW...
&&
STATUS REPORT FOR WS 522
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC021-033-055-069-079-109-140240-
MT
. MONTANA COUNTIES INCLUDED ARE
DAWSON GARFIELD MCCONE
PETROLEUM PRAIRIE 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 #3 ON WW 522
VALID 140020Z - 140140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 NNW LWT
TO 45 E HVR TO 20 WSW ISN.
..LYONS..07/14/24
ATTN...WFO...TFX...GGW...
&&
STATUS REPORT FOR WS 522
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC021-033-055-069-071-079-083-085-105-109-140140-
MT
. MONTANA COUNTIES INCLUDED ARE
DAWSON GARFIELD MCCONE
PETROLEUM PHILLIPS PRAIRIE
RICHLAND ROOSEVELT VALLEY
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 522
VALID 132305Z - 140040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW HVR
TO 50 N HVR.
..LYONS..07/13/24
ATTN...WFO...TFX...GGW...
&&
STATUS REPORT FOR WS 522
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC005-021-033-041-055-069-071-079-083-085-105-109-140040-
MT
. MONTANA COUNTIES INCLUDED ARE
BLAINE DAWSON GARFIELD
HILL MCCONE PETROLEUM
PHILLIPS PRAIRIE RICHLAND
ROOSEVELT VALLEY 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 522
VALID 132140Z - 132240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LYONS..07/13/24
ATTN...WFO...TFX...GGW...
&&
STATUS REPORT FOR WS 522
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MTC005-021-033-041-055-069-071-079-083-085-105-109-132240-
MT
. MONTANA COUNTIES INCLUDED ARE
BLAINE DAWSON GARFIELD
HILL MCCONE PETROLEUM
PHILLIPS PRAIRIE RICHLAND
ROOSEVELT VALLEY WIBAUX
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (<2%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
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 
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