Alert archive / Montana / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 32, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 24, 2013, 8:55 PM MDT for Garfield County, Petroleum County, Phillips County, Montana. It was in force for 50 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, 2013, 8:55 PM MDT (02:55 UTC)
- Expired
- Jun 24, 2013, 9:45 PM MDT
- In force
- 50 min
- Issued by
- NWS Glasgow, MT
- Area
- Storm-based polygon
Counties Garfield County, MT, Petroleum County, MT, Phillips County, MT
The radar
The Glasgow radar (KGGW), 109 km from the middle of the area, began a volume at 02:55 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, 7:01 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 2.9 hours before the alert went out and 112 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
- 1513 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1897 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 7.5
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 24, 7:29 PM MDT, 1 hour 26 minutes earlier.
Area forecast discussion, Jun 24, 7:29 PM MDT, 1 hour 26 minutes before
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</html>Hazardous weather outlook, Jun 24, 2:26 PM MDT, 6 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 226 PM MDT MON JUN 24 2013 MTZ016>027-059>062-251200- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY- DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-GARFIELD-MCCONE- RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS- SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT- 226 PM MDT MON JUN 24 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS AN INCREASING CHANCE FOR THUNDERSTORMS LATE THIS AFTERNOON AND EVENING...SOME OF WHICH MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WIND. RAIN MAY BECOME HEAVY AT TIMES LATE TONIGHT THROUGH TUESDAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY GUSTY WEST WINDS COULD BE POSSIBLE OVER FORT PECK LAKE WEDNESDAY AFTERNOON WHICH WOULD CAUSE A LIGHT CHOP ON THE LAKE. SHOULD CONFIDENCE INCREASE IN THESE WINDS... A LAKE WIND ADVISORY WILL BE NEEDED. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 9:21 PM MDT | Flash Flood Warning | GGW | Phillips | 4 hr |
| Jun 24, 9:40 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips | 50 min |
| Jun 24, 9:54 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Phillips, Valley | 66 min |
| Jun 24, 9:55 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jun 24, 10:36 PM MDT | Flash Flood Warning | GGW | Garfield, Petroleum, Phillips | 3 hr |
| Jun 24, 10:56 PM MDT | Special Weather Statement | GGW | Petroleum | 64 min |
| Jun 24, 10:56 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Phillips, Valley | 64 min |
| Jun 24, 11:29 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 46 min |
| Jun 24, 11:52 PM MDT | Flash Flood Warning | GGW | Petroleum | 3 hr |
| Jun 24, 11:53 PM MDT | Special Weather Statement | GGW | Valley | 67 min |
| Jun 25, 12:00 AM MDT | Special Weather Statement | GGW | Valley | 45 min |
| Jun 25, 12:08 AM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 52 min |
| Jun 25, 12:25 AM MDT | Flash Flood Warning | GGW | Valley | 3 hr |
| Jun 25, 1:01 AM MDT | Special Weather Statement | GGW | Valley | 59 min |
| Jun 25, 1:16 AM MDT | Areal Flood Warning | GGW | Phillips | 8 hr |
| Jun 25, 1:42 AM MDT | Flash Flood Warning | GGW | Valley | 3 hr |
| Jun 25, 2:25 AM MDT | Areal Flood Warning | GGW | Petroleum | 6 hr |
| Jun 25, 3:27 AM MDT | Areal Flood Advisory | GGW | Valley | 6 hr |
Nearby
Severe Thunderstorm Warnings in Montana, 2013Every severe thunderstorm warning in 2013
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.