Alert archive / Montana / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 53, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 26, 2008, 6:59 AM MDT for Valley 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 26, 2008, 6:59 AM MDT (12:59 UTC)
- Expired
- Jun 26, 2008, 8:00 AM MDT
- In force
- 61 min
- Issued by
- NWS Glasgow, MT
- Area
- Storm-based polygon
County Valley County, MT
The radar
The Glasgow radar (KGGW), 18 km from the middle of the area, began a volume at 12:59 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 1.0 hours before the alert went out and 481 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.
- Mixed-layer CAPE
- 14 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 1230 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 4:18 AM MDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jun 26, 4:18 AM MDT, 2 hours 41 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 347 AM MDT THU JUN 26 2008 MTZ016-017-021-022-059>061-271000- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY- PETROLEUM-GARFIELD-NORTHERN PHILLIPS-SOUTHWEST PHILLIPS- NORTHERN VALLEY- 347 AM MDT THU JUN 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE REGION TODAY AHEAD OF AN UPPER LEVEL TROUGH AND COLD FRONT. WHILE THE STRONGEST INSTABILITY WILL BE CLOSER TO THE NORTH DAKOTA BORDER THIS AFTERNOON...AN ISOLATED STRONG TO SEVERE STORM WILL STILL BE POSSIBLE UNTIL THE COLD FRONT PASSES THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ018>020-023>027-062-271000- DANIELS-SHERIDAN-WESTERN ROOSEVELT-MCCONE-RICHLAND-DAWSON-PRAIRIE- WIBAUX-EASTERN ROOSEVELT- 347 AM MDT THU JUN 26 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY AND TONIGHT. AN UPPER LEVEL TROUGH WILL COMBINE WITH INCREASING INSTABILITY TO TRIGGER STRONG TO SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS AND LOCALLY HEAVY RAINFALL. THE SEVERE THREAT WILL GRADUALLY DIMINISH BY THIS EVENING AS STORMS EXIT INTO THE DAKOTAS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER 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 26, 6:47 AM MDT, 12 minutes before
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</html>The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 6:57 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 53 min |
| Jun 25, 9:13 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie | 62 min |
| Jun 25, 10:11 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie | 33 min |
| Jun 25, 10:46 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Sheridan | 29 min |
| Jun 26, 5:53 AM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 67 min |
| Jun 26, 9:12 AM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Valley | 63 min |
| Jun 26, 9:51 AM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 54 min |
| Jun 26, 10:35 AM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 55 min |
| Jun 26, 11:40 AM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 35 min |
| Jun 26, 12:05 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 22 min |
| Jun 26, 12:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 67 min |
| Jun 26, 1:36 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 24 min |
| Jun 26, 3:29 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 61 min |
| Jun 26, 4:51 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 54 min |
| Jun 26, 4:59 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland | 61 min |
| Jun 26, 5:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 67 min |
| Jun 26, 5:45 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 45 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2008Every severe thunderstorm warning in 2008
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.