Alert archive / Montana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 10, NWS Billings, MT

May 18, 2014Yellowstone County, Montana

NWS Billings, MT issued this severe thunderstorm warning at May 18, 2014, 5:42 PM MDT for Yellowstone County, Montana. It was in force for 33 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, 5:42 PM MDT (23:42 UTC)
Expired: May 18, 2014, 6:15 PM MDT
In force: 33 min
Issued by: NWS Billings, MT
Area: Storm-based polygon

County Yellowstone County, MT

The radar

The Billings radar (KBLX), 27 km from the middle of the area, began a volume at 23:45 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, 5:20 PM MDT, 22 minutes earlier.

Area forecast discussion, May 18, 5:20 PM MDT, 22 minutes before

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Hazardous weather outlook, May 18, 3:17 PM MDT, 2 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
317 PM MDT SUN MAY 18 2014

MTZ028>042-056>058-063>068-WYZ098-099-192130-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
317 PM MDT SUN MAY 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON
THROUGH THIS EVENING. LARGE HAIL...STRONG WIND GUSTS AND HEAVY
RAIN WILL BE THE MAIN THREATS FROM THESE STORMS ALONG WITH
FREQUENT LIGHTNING. AN ISOLATED TORNADO IS NOT OUT OF THE
QUESTION.

HEAVY RAINFALL OVER MUSSELSHELL COUNTY WITH STORMS THIS AFTERNOON
AND EVENING MAY CAUSE FLASH FLOODING OVER AND NEAR THE
WILSON...DAHL...AND DELPHIA BURN SCARS. ADDITIONAL HEAVY RAINFALL
COULD ALSO IMPACT THE EMIGRANT AND PINE CREEK BURN SCARS IN THE
PARADISE VALLEY. THOSE WITH LIVESTOCK OR EQUIPMENT IN LOW LYING
AREAS SHOULD MOVE THEM TO HIGHER GROUND BEFORE STORMS DEVELOP THIS
AFTERNOON. RESIDENTS SHOULD BE PREPARED TO TAKE PROTECTIVE ACTION
AND MOVE TO HIGHER GROUND SHOULD FLASH FLOODING DEVELOP.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, May 18, 4:45 PM MDT, 57 minutes before

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Local storm report, May 18, 4:48 PM MDT, 54 minutes before

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Local storm report, May 18, 4:57 PM MDT, 45 minutes before

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Special weather statement, May 18, 4:59 PM MDT, 43 minutes before

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Local storm report, May 18, 5:30 PM MDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
530 PM MDT SUN MAY 18 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0455 PM     HAIL             3 S BILLINGS WEST END   45.75N 108.62W
05/18/2014  M1.00 INCH       YELLOWSTONE        MT   NWS EMPLOYEE

0500 PM     HAIL             2 W BILLINGS WEST END   45.79N 108.65W
05/18/2014  M1.00 INCH       YELLOWSTONE        MT   NWS EMPLOYEE

0509 PM     HAIL             2 W BILLINGS            45.78N 108.55W
05/18/2014  M1.25 INCH       YELLOWSTONE        MT   PUBLIC

0510 PM     HAIL             2 N BILLINGS            45.81N 108.51W
05/18/2014  M1.75 INCH       YELLOWSTONE        MT   NWS EMPLOYEE

0512 PM     HAIL             5 NNE BILLINGS          45.84N 108.46W
05/18/2014  M1.25 INCH       YELLOWSTONE        MT   COCORAHS

0512 PM     HAIL             4 WNW BILLINGS          45.80N 108.58W
05/18/2014  M1.00 INCH       YELLOWSTONE        MT   TRAINED SPOTTER

0516 PM     HAIL             3 NW BILLINGS           45.81N 108.54W
05/18/2014  M1.75 INCH       YELLOWSTONE        MT   PUBLIC

0516 PM     TSTM WND GST     3 NW BILLINGS           45.81N 108.54W
05/18/2014  E60.00 MPH       YELLOWSTONE        MT   PUBLIC

0519 PM     HAIL             5 NE BILLINGS           45.84N 108.44W
05/18/2014  M1.75 INCH       YELLOWSTONE        MT   TRAINED SPOTTER

0525 PM     HAIL             4 E BILLINGS            45.78N 108.43W
05/18/2014  M1.75 INCH       YELLOWSTONE        MT   NWS EMPLOYEE

            BROKEN BASEMENT WINDOW

&&

AAG

Special weather statement, May 18, 5:38 PM MDT, 4 minutes before

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

MTZ034-035-038-039-190000-
EASTERN CARBON MT-SOUTHERN BIG HORN MT-YELLOWSTONE MT-
NORTHERN STILLWATER MT-
538 PM MDT SUN MAY 18 2014

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN BIG HORN...EAST CENTRAL
STILLWATER...SOUTHWESTERN YELLOWSTONE AND NORTH CENTRAL CARBON
COUNTIES UNTIL 600 PM MDT...

AT 537 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES SOUTHWEST OF LAUREL...OR 17 MILES EAST OF COLUMBUS...MOVING
EAST AT 35 MPH.

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

THIS STRONG THUNDERSTORM WILL BE NEAR...
  LAUREL AROUND 545 PM MDT.
  BILLINGS AROUND 600 PM MDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE SILESIA...EDGAR...
ROCKVALE...PARK CITY AND BOYD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN BILLINGS.

&&

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

LAT...LON 4545 10914 4567 10914 4583 10842 4533 10835
TIME...MOT...LOC 2337Z 263DEG 32KT 4561 10888

CHAMBERS

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, 3:08 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass	37 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

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.