Alert archive / Montana / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 81, NWS Billings, MT

June 24, 2007Rosebud County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 24, 2007, 10:29 PM MDT for Rosebud County, Montana. It was in force for 61 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 24, 2007, 10:29 PM MDT (04:29 UTC)
Expired: Jun 24, 2007, 11:30 PM MDT
In force: 61 min
Issued by: NWS Billings, MT
Area: Counties, with a storm outline in the text

County Rosebud County, MT

The radar

The Billings radar (KBLX), 151 km from the middle of the area, began a volume at 04:30 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
Jun 24, 4:06 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.5 hours before the alert went out and 221 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2580 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 24, 9:15 PM MDT, 1 hour 14 minutes earlier.

Area forecast discussion, Jun 24, 9:15 PM MDT, 1 hour 14 minutes before

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Hazardous weather outlook, Jun 24, 4:14 PM MDT, 6 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
414 PM MDT SUN JUN 24 2007

MTZ028>042-056>058-063>068-WYZ098-099-252215-
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-
414 PM MDT SUN JUN 24 2007

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

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE LIKELY ACROSS THE AREA TONIGHT. SOME
STORMS WILL BECOME SEVERE WITH LARGE HAIL...HEAVY RAIN...DAMAGING
WINDS AND ISOLATED TORNADOES. A TORNADO WATCH IS IN EFFECT UNTIL
11 PM TONIGHT.

.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

Local storm report, Jun 24, 8:35 PM MDT, 1 hour 54 minutes before

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Local storm report, Jun 24, 8:43 PM MDT, 1 hour 46 minutes before

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Local storm report, Jun 24, 9:01 PM MDT, 1 hour 28 minutes before

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Local storm report, Jun 24, 9:06 PM MDT, 1 hour 23 minutes before

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Local storm report, Jun 24, 9:51 PM MDT, 38 minutes before

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Local storm report, Jun 24, 10:20 PM MDT, 9 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
Jun 24, 6:47 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	58 min
Jun 24, 7:15 PM MDT	Tornado Warning	BYZ	Wheatland	30 min
Jun 24, 7:43 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley	24 min
Jun 24, 7:51 PM MDT	Tornado Warning	BYZ	Musselshell	24 min
Jun 24, 8:14 PM MDT	Tornado Warning	BYZ	Musselshell	31 min
Jun 24, 8:45 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Rosebud, Treasure, Yellowstone	60 min
Jun 24, 9:37 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud, Treasure	53 min
Jun 24, 11:28 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Rosebud	62 min
Jun 25, 4:27 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	63 min
Jun 25, 5:10 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	65 min
Jun 25, 5:47 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	44 min

Nearby

Severe Thunderstorm Warnings in Montana, 2007 Every severe thunderstorm warning in 2007

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; radar from the NEXRAD Level II archive.