Alert archive / Montana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 4, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 9, 2001, 11:24 AM MDT for Dawson County, Montana. It was in force for 66 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 9, 2001, 11:24 AM MDT (17:24 UTC)
- Expired
- Jun 9, 2001, 12:30 PM MDT
- In force
- 66 min
- Issued by
- NWS Glasgow, MT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Dawson County, MT
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 11:30 AM MDT | Hail 0.75 | Lindsay, MT |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 5.4 hours before the alert went out and 166 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
- 37 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 1810 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 9, 9:35 AM MDT, 1 hour 49 minutes earlier.
Area forecast discussion, Jun 9, 9:35 AM MDT, 1 hour 49 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
935 AM MDT SAT JUN 9 2001
THUNDERSTORMS TRACKING ALONG FORT PECK LAKE THIS MORNING ASSOCIATED
WITH SURFACE BOUNDARY. STORMS INTERACTING WITH OUTFLOW BOUNDARY LEFT
FROM STORMS OVER SOUTHEAST MONTANA OVERNIGHT. THREAT FOR
THUNDERSTORMS WILL CONTINUE THROUGH THE DAY AS JET PUSHES INTO
STATE. CURRENT FORECAST LOOKS OKAY...NO UPDATE PLANNED. EBERT
EXTENDED...NO CHANGE. A WET PATTERN EARLY...THEN RIDGING AND DRYING.
PROTON
KGGW /084 056/082 056/082 051/066 049/070 051/072 050/074
TTTTBBB 94433/9433111
KGDV /086 055/084 056/086 048/070 050/071 051/074 051/074
TTTTBBB 94443/9433111The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 9:12 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jun 9, 10:27 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 63 min |
| Jun 9, 10:28 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jun 9, 11:29 AM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 61 min |
| Jun 9, 12:28 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 62 min |
| Jun 9, 1:53 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 37 min |
| Jun 9, 2:39 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 36 min |
| Jun 9, 3:40 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 35 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.