Alert archive / Montana / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 487

June 16, 2005Teton County, Idaho; 19 counties in Montana; 5 counties in Wyoming

The Storm Prediction Center issued this severe thunderstorm watch at Jun 16, 2005, 1:35 PM MDT for Teton County, Idaho; 19 counties in Montana; 5 counties in Wyoming. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jun 16, 2005, 1:35 PM MDT (19:35 UTC)
Expired
Jun 16, 2005, 10:00 PM MDT
In force
8 hr
Issued by
the Storm Prediction Center
All 25 counties

Teton County, ID, Big Horn County, MT, Blaine County, MT, Carbon County, MT, Chouteau County, MT, Fergus County, MT, Garfield County, MT, Golden Valley County, MT, Hill County, MT, Judith Basin County, MT, Musselshell County, MT, Park County, MT, Petroleum County, MT, Phillips County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Valley County, MT, Wheatland County, MT, Yellowstone County, MT, Big Horn County, WY, Hot Springs County, WY, Park County, WY, Teton County, WY, Washakie County, WY

The radar

The Billings radar (KBLX), 58 km from the middle of the area, began a volume at 19:36 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.

Warnings issued inside it

24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 16, 1:36 PM MDTFlash Flood WarningGGWPhillips6 hr
Jun 16, 1:51 PM MDTSevere Thunderstorm WarningRIWLincoln, Teton22 min
Jun 16, 2:17 PM MDTSevere Thunderstorm WarningGGWPhillips58 min
Jun 16, 2:37 PM MDTSevere Thunderstorm WarningGGWPhillips, Valley53 min
Jun 16, 2:42 PM MDTFlash Flood WarningGGWPhillips, Valley6 hr
Jun 16, 3:04 PM MDTSevere Thunderstorm WarningTFXJudith Basin31 min
Jun 16, 3:27 PM MDTSevere Thunderstorm WarningGGWValley38 min
Jun 16, 5:53 PM MDTSevere Thunderstorm WarningBYZStillwater67 min
Jun 16, 6:02 PM MDTSevere Thunderstorm WarningGGWPetroleum, Phillips58 min
Jun 16, 6:58 PM MDTSevere Thunderstorm WarningGGWGarfield, Phillips54 min
Jun 16, 7:21 PM MDTSevere Thunderstorm WarningBYZYellowstone54 min
Jun 16, 7:51 PM MDTSevere Thunderstorm WarningTFXChouteau52 min
Jun 16, 7:57 PM MDTSevere Thunderstorm WarningBYZMusselshell36 min
Jun 16, 7:58 PM MDTFlash Flood WarningTFXChouteau3 hr
Jun 16, 8:08 PM MDTSevere Thunderstorm WarningGGWPetroleum67 min
Jun 16, 8:11 PM MDTSevere Thunderstorm WarningBYZYellowstone64 min
Jun 16, 8:11 PM MDTSevere Thunderstorm WarningBYZYellowstone64 min
Jun 16, 8:30 PM MDTSevere Thunderstorm WarningGGWPetroleum45 min
Jun 16, 8:51 PM MDTSevere Thunderstorm WarningBYZMusselshell54 min
Jun 16, 9:01 PM MDTFlash Flood WarningGGWPetroleum6 hr
Jun 16, 9:02 PM MDTSevere Thunderstorm WarningBYZBig Horn62 min
Jun 16, 9:14 PM MDTSevere Thunderstorm WarningGGWGarfield, Petroleum49 min
Jun 16, 9:24 PM MDTFlash Flood WarningBYZBig Horn6 hr
Jun 16, 9:56 PM MDTSevere Thunderstorm WarningBYZTreasure, Yellowstone65 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 7.6 hours before the alert went out and 214 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 12:00Z on 2005-06-16Temperature 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 12:00Z on 2005-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 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
970 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 3:54 PM MDTMesoscale DiscussionSPCTeton96 min
Jun 15, 6:15 PM MDTMesoscale DiscussionSPCCarter, Custer, Powder River, Prairie, Rosebud, Treasure2 hr
Jun 16, 12:43 PM MDTMesoscale DiscussionSPCBlaine, Broadwater, Carbon, Chouteau, Fergus, Gallatin and 12 more2 hr

Nearby

Severe Thunderstorm Watches in Montana, 2005Severe Thunderstorm Watches in Wyoming, 2005Severe Thunderstorm Watches in Idaho, 2005Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.