Alert archive / Montana / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 6, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at May 3, 2007, 2:17 PM MDT for Garfield County, Montana. It was in force for 28 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
- May 3, 2007, 2:17 PM MDT (20:17 UTC)
- Expired
- May 3, 2007, 2:45 PM MDT
- In force
- 28 min
- Issued by
- NWS Glasgow, MT
- Area
- Counties, with a storm outline in the text
County Garfield County, MT
The radar
The Glasgow radar (KGGW), 107 km from the middle of the area, began a volume at 20:19 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 |
|---|---|---|---|
| May 3, 1:40 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 8.3 hours before the alert went out and 479 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1609 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 May 3, 9:33 AM MDT, 4 hours 44 minutes earlier.
Area forecast discussion, May 3, 9:33 AM MDT, 4 hours 44 minutes before
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</html>Hazardous weather outlook, May 3, 8:44 AM MDT, 5 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 844 AM MDT THU MAY 3 2007 MTZ016-018>021-024>027-059>062-041445- CENTRAL AND SOUTHEAST PHILLIPS-DANIELS-SHERIDAN-WESTERN ROOSEVELT- PETROLEUM-RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS- SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT- 844 AM MDT THU MAY 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHEAST MONTANA TODAY AND TONIGHT. THE BEST CHANCE OF THUNDERSTORMS WILL BE THIS AFTERNOON AND EVENING. THE MAIN TYPE OF SEVERE WEATHER EXPECTED WILL BE LARGE HAIL. HEAVY RAINFALL COULD ALSO OCCUR WITH SOME OF THESE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER SPOTTERS ARE ENCOURAGED TO IMMEDIATELY REPORT ANY SIGNIFICANT WEATHER TODAY AND TONIGHT UTILIZING THE PHONE NUMBER PROVIDED TO THEM. MTZ017-022-023-041445- CENTRAL AND SOUTHERN VALLEY-GARFIELD-MCCONE- 844 AM MDT THU MAY 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT A LAKE WIND ADVISORY IS IN EFFECT FOR FORT PECK LAKE UNTIL 1 AM FRIDAY. STRONG SOUTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH ARE EXPECTED TO SWITCH TO THE SOUTHWEST AT 15 TO 30 MPH THIS AFTERNOON. THERE IS ALSO A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHEAST MONTANA TODAY AND TONIGHT. THE BEST CHANCE OF THUNDERSTORMS WILL BE THIS AFTERNOON AND EVENING. THE MAIN TYPE OF SEVERE WEATHER EXPECTED WILL BE LARGE HAIL. HEAVY RAINFALL COULD ALSO OCCUR WITH SOME OF THESE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER SPOTTERS ARE ENCOURAGED TO IMMEDIATELY REPORT ANY SIGNIFICANT WEATHER TODAY AND TONIGHT UTILIZING THE PHONE NUMBER PROVIDED TO THEM.
The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:23 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Phillips, Valley | 67 min |
| May 2, 10:01 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 59 min |
| May 3, 2:47 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 58 min |
| May 3, 3:31 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 59 min |
| May 3, 3:43 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 62 min |
| May 3, 4:04 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 56 min |
| May 3, 4:55 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 65 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.