Alert archive / Montana / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 63, NWS Billings, MT

June 20, 2005Fallon County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 20, 2005, 3:57 AM MDT for Fallon County, Montana. It was in force for 64 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
Jun 20, 2005, 3:57 AM MDT (09:57 UTC)
Expired
Jun 20, 2005, 5:01 AM MDT
In force
64 min
Issued by
NWS Billings, MT
Area
Counties, with a storm outline in the text

County Fallon County, MT

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 20, 2:00 AM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 10.0 hours before the alert went out and 267 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 00:00Z on 2005-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 00:00Z on 2005-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2919 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jun 20, 3:41 AM MDT, 16 minutes earlier.

Area forecast discussion, Jun 20, 3:41 AM MDT, 16 minutes before
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Hazardous weather outlook, Jun 20, 2:14 AM MDT, 1 hour 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
214 AM MDT MON JUN 20 2005

MTZ028>030-034-035-038>042-056-057-063>068-WYZ098-099-210815-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN STILLWATER-
YELLOWSTONE-SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-JUDITH GAP-PARADISE VALLEY-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-CRAZY MOUNTAINS-
NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
214 AM MDT MON JUN 20 2005

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

.DAY ONE...TONIGHT
NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY
THE POTENTIAL EXISTS FOR SEVERE THUNDERSTORMS MONDAY AFTERNOON AND
EVENING.

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

MTZ031>033-036-037-058-210815-
NORTHERN ROSEBUD-CUSTER-FALLON-POWDER RIVER-CARTER-
SOUTHERN ROSEBUD-
214 AM MDT MON JUN 20 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MONTANA.

.DAY ONE...TONIGHT
SCATTERED THUNDERSTORMS ARE EXPECTED TONIGHT. SOME OF THE
THUNDERSTORMS COULD BE SEVERE. LOCALLY HEAVY RAINFALL WILL BE
POSSIBLE WITH THESE STORMS. A SEVERE THUNDERSTORM WATCH IS IN
EFFECT UNTIL 7 AM MDT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SUNDAY
SEVERE THUNDERSTORMS WILL ONCE AGAIN BE POSSIBLE MONDAY AFTERNOON
AND EVENING.

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

In the hours before

Local storm report, Jun 19, 10:58 PM MDT, 4 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1058 PM MDT SUN JUN 19 2005

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

1058 PM     HAIL             BROADUS                 45.44N 105.41W
06/19/2005  0.88 INCH        POWDER RIVER       MT   LAW ENFORCEMENT

&&
Special weather statement, Jun 20, 2:03 AM MDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
203 AM MDT MON JUN 20 2005

MTZ031>033-036-037-058-201300-
CARTER-CUSTER-FALLON-POWDER RIVER-NORTHERN ROSEBUD-SOUTHERN ROSEBUD-
203 AM MDT MON JUN 20 2005

THE NATIONAL WEATHER SERVICE HAS ALLOWED SEVERE THUNDERSTORM
WATCH 500 TO EXPIRE...AND HAS ISSUED SEVERE THUNDERSTORM WATCH
502 UNTIL 7 AM MDT FOR THE FOLLOWING AREAS

IN MONTANA THE NEW WATCH INCLUDES 5 COUNTIES

IN SOUTHEAST MONTANA

CARTER                CUSTER                FALLON
POWDER RIVER          ROSEBUD

THIS INCLUDES THE CITIES OF...BAKER...MILES CITY...BROADUS...
EKALAKA...COLSTRIP...LAME DEER AND FORSYTH.

MTZ029-030-034-035-038-039-042-056-057-063-066-067-WYZ098-099-200915-
SOUTHERN BIG HORN-NORTHERN BIG HORN-EASTERN CARBON-RED LODGE
FOOTHILLS-BEARTOOTH/ABSAROKA MOUNTAINS-GOLDEN VALLEY-JUDITH GAP-
MUSSELSHELL-NORTHERN STILLWATER-BEARTOOTH FOOTHILLS-
BEARTOOTH/ABSAROKA MOUNTAINS-TREASURE-YELLOWSTONE-SHERIDAN
FOOTHILLS-NORTHEAST BIG HORN MOUNTAINS-
203 AM MDT MON JUN 20 2005

THE NATIONAL WEATHER SERVICE HAS ALLOWED SEVERE THUNDERSTORM
WATCH 500 TO EXPIRE FOR THE FOLLOWING AREAS

IN MONTANA THIS ALLOWS TO EXPIRE 7 COUNTIES

IN CENTRAL MONTANA

GOLDEN VALLEY         MUSSELSHELL

IN SOUTH CENTRAL MONTANA

BIG HORN              CARBON                STILLWATER
YELLOWSTONE

IN SOUTHEAST MONTANA

TREASURE

IN WYOMING THIS ALLOWS TO EXPIRE 1 COUNTY

IN NORTH CENTRAL WYOMING

SHERIDAN

THIS INCLUDES THE CITIES OF...RED LODGE...BRIDGER...JOLIET...
HARDIN...CROW AGENCY...SHERIDAN...RYEGATE...LAVINA...ROUNDUP...
HYSHAM...BILLINGS...COLUMBUS AND ABSAROKEE.
Local storm report, Jun 20, 3:00 AM MDT, 57 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:29 PM MDTSevere Thunderstorm WarningBYZCarter57 min
Jun 19, 10:06 PM MDTSevere Thunderstorm WarningBYZPowder River54 min
Jun 19, 10:28 PM MDTSevere Thunderstorm WarningBYZRosebud44 min
Jun 19, 10:57 PM MDTSevere Thunderstorm WarningBYZPowder River35 min
Jun 20, 12:35 AM MDTSevere Thunderstorm WarningBYZRosebud, Treasure55 min
Jun 20, 1:29 AM MDTSevere Thunderstorm WarningBYZRosebud, Treasure61 min
Jun 20, 2:11 AM MDTSevere Thunderstorm WarningBYZCuster, Rosebud64 min
Jun 20, 3:07 AM MDTSevere Thunderstorm WarningBYZCuster, Fallon53 min

Nearby

Severe Thunderstorm Warnings in Montana, 2005Every severe thunderstorm warning in 2005

Sources

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