Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 4, NWS Billings, MT

May 18, 2014Sweet Grass County, Montana

NWS Billings, MT issued this severe thunderstorm warning at May 18, 2014, 3:08 PM MDT for Sweet Grass County, Montana. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 18, 2014, 3:08 PM MDT (21:08 UTC)
Expired: May 18, 2014, 3:45 PM MDT
In force: 37 min
Issued by: NWS Billings, MT
Area: Storm-based polygon

County Sweet Grass County, MT

The radar

The Billings radar (KBLX), 103 km from the middle of the area, began a volume at 21:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 18, 2:13 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 2:25 PM MDT, 43 minutes earlier.

Area forecast discussion, May 18, 2:25 PM MDT, 43 minutes before

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Hazardous weather outlook, May 18, 9:43 AM MDT, 5 hours 25 minutes before

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In the hours before

Special weather statement, May 18, 1:44 PM MDT, 1 hour 24 minutes before

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE BILLINGS MT
144 PM MDT SUN MAY 18 2014

MTZ029-182030-
MUSSELSHELL MT
144 PM MDT SUN MAY 18 2014

...SIGNIFICANT WEATHER ADVISORY FOR MUSSELSHELL COUNTY UNTIL 230
PM MDT...

AT 144 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 13
MILES SOUTH OF CAMP THREE...OR 14 MILES SOUTHWEST OF ROUNDUP...MOVING
NORTHEAST AT 20 MPH.

NICKEL SIZE HAIL AND FREQUENT LIGHTNING IS POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
ROUNDUP...CAMP THREE AND KLEIN.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4662 10834 4631 10816 4614 10875 4624 10878
      4628 10878 4628 10880 4631 10882
TIME...MOT...LOC 1944Z 239DEG 19KT 4626 10868

CJS

Special weather statement, May 18, 2:20 PM MDT, 48 minutes before

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Special weather statement, May 18, 2:46 PM MDT, 22 minutes before

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Special weather statement, May 18, 2:46 PM MDT, 22 minutes before

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Special weather statement, May 18, 2:57 PM MDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
257 PM MDT SUN MAY 18 2014

MTZ041-066>068-182130-
NORTHERN SWEET GRASS MT-ABSAROKA/BEARTOOTH MOUNTAINS MT-
CRAZY MOUNTAINS MT-BEARTOOTH FOOTHILLS MT-
257 PM MDT SUN MAY 18 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SWEET GRASS
COUNTIES UNTIL 330 PM MDT...

AT 257 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14
MILES WEST OF BIG TIMBER...MOVING NORTHEAST AT 35 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BIG TIMBER...SOURDOUGH AND SPRINGDALE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
SUNDAY AFTERNOON FOR SOUTHEAST MONTANA.

LAT...LON 4596 11035 4604 10990 4580 10972 4564 11029
      4563 11031 4564 11032 4567 11022 4578 11023
      4579 11030 4589 11029 4589 11037
TIME...MOT...LOC 2057Z 243DEG 29KT 4578 11024

CHAMBERS

Special weather statement, May 18, 3:06 PM MDT, 2 minutes before

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The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 10:36 PM MDT	Special Weather Statement	BYZ	Yellowstone	54 min
May 17, 11:51 PM MDT	Special Weather Statement	BYZ	Big Horn	69 min
May 18, 12:59 PM MDT	Special Weather Statement	BYZ	Musselshell	46 min
May 18, 1:44 PM MDT	Special Weather Statement	BYZ	Musselshell	46 min
May 18, 2:06 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	54 min
May 18, 2:20 PM MDT	Special Weather Statement	BYZ	Park	40 min
May 18, 2:46 PM MDT	Special Weather Statement	BYZ	Big Horn	44 min
May 18, 2:57 PM MDT	Special Weather Statement	BYZ	Sweet Grass	33 min
May 18, 3:06 PM MDT	Special Weather Statement	BYZ		39 min
May 18, 3:19 PM MDT	Special Weather Statement	BYZ	Park	26 min
May 18, 3:33 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Stillwater, Sweet Grass	57 min
May 18, 3:49 PM MDT	Special Weather Statement	BYZ	Sweet Grass	41 min
May 18, 4:24 PM MDT	Severe Thunderstorm Warning	BYZ	Carbon, Stillwater, Yellowstone	51 min
May 18, 4:27 PM MDT	Special Weather Statement	BYZ	Stillwater	48 min
May 18, 4:31 PM MDT	Special Weather Statement	BYZ	Rosebud	44 min
May 18, 4:45 PM MDT	Special Weather Statement	BYZ	Powder River	45 min
May 18, 4:47 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	58 min
May 18, 4:59 PM MDT	Special Weather Statement	BYZ	Stillwater	46 min
May 18, 5:20 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	55 min
May 18, 5:25 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Treasure, Yellowstone	65 min
May 18, 5:38 PM MDT	Special Weather Statement	BYZ	Carbon	22 min
May 18, 5:42 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	33 min

Nearby

Severe Thunderstorm Warnings in Montana, 2014 Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.