Alert archive / Montana / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 62, NWS Billings, MT

June 17, 2007Wheatland County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 17, 2007, 12:52 AM MDT for Wheatland County, Montana. It was in force for 48 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 17, 2007, 12:52 AM MDT (06:52 UTC)
Expired
Jun 17, 2007, 1:40 AM MDT
In force
48 min
Issued by
NWS Billings, MT
Area
Counties, with a storm outline in the text

County Wheatland County, MT

The radar

The Billings radar (KBLX), 117 km from the middle of the area, began a volume at 06:54 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 nearest sounding before it

Great_falls, MT (KTFX), launched 00:00Z, 6.9 hours before the alert went out and 125 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, Great_falls, MT at 00:00Z on 2007-06-17Temperature 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, Great_falls, MT at 00:00Z on 2007-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -55 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
1243 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-55 m²/s²
0-3 km storm-relative helicity
118 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 16, 11:39 PM MDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jun 16, 11:39 PM MDT, 1 hour 13 minutes before
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Hazardous weather outlook, Jun 16, 2:22 PM MDT, 10 hours 30 minutes before
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In the hours before

Local storm report, Jun 16, 8:04 PM MDT, 4 hours 48 minutes before
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Local storm report, Jun 16, 9:49 PM MDT, 3 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
949 PM MDT SAT JUN 16 2007

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

0500 PM     HAIL             10 W RAPELJE            45.99N 109.48W
06/16/2007  E1.00 INCH       SWEET GRASS        MT   TRAINED SPOTTER

0607 PM     HAIL             16 N BILLINGS HEIGHTS   45.83N 108.46W
06/16/2007  E2.00 INCH       YELLOWSTONE        MT   STORM CHASER

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 6:26 PM MDTSevere Thunderstorm WarningBYZYellowstone79 min
Jun 16, 7:24 PM MDTSevere Thunderstorm WarningBYZTreasure35 min
Jun 17, 2:06 AM MDTSevere Thunderstorm WarningBYZGolden Valley, Musselshell54 min
Jun 17, 2:16 AM MDTSevere Thunderstorm WarningBYZGolden Valley, Wheatland44 min
Jun 17, 2:56 AM MDTSevere Thunderstorm WarningBYZGolden Valley, Stillwater, Sweet Grass, Wheatland25 min
Jun 17, 2:56 AM MDTSevere Thunderstorm WarningBYZMusselshell, Rosebud, Treasure, Yellowstone64 min
Jun 17, 3:03 AM MDTSevere Thunderstorm WarningBYZMusselshell, Yellowstone57 min
Jun 17, 3:26 AM MDTSevere Thunderstorm WarningBYZStillwater, Yellowstone64 min
Jun 17, 3:47 AM MDTSevere Thunderstorm WarningBYZCuster, Rosebud58 min
Jun 17, 3:56 AM MDTSevere Thunderstorm WarningBYZRosebud, Treasure64 min
Jun 17, 4:02 AM MDTTornado WarningBYZCuster, Rosebud28 min
Jun 17, 4:08 AM MDTSevere Thunderstorm WarningBYZBig Horn, Treasure, Yellowstone67 min
Jun 17, 4:40 AM MDTSevere Thunderstorm WarningBYZCuster, Rosebud65 min
Jun 17, 4:46 AM MDTSevere Thunderstorm WarningBYZCuster29 min
Jun 17, 6:00 AM MDTSevere Thunderstorm WarningBYZCuster, Fallon37 min

Nearby

Severe Thunderstorm Warnings in Montana, 2007Every 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.