Alert archive / Montana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 5, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 8, 2002, 5:25 PM MDT for Wibaux County, Montana. It was in force for 65 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 8, 2002, 5:25 PM MDT (23:25 UTC)
- Expired
- Jun 8, 2002, 6:30 PM MDT
- In force
- 65 min
- Issued by
- NWS Glasgow, MT
- Area
- Whole counties
County Wibaux County, MT
The radar
The Glasgow radar (KGGW), 225 km from the middle of the area, began a volume at 23:25 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 8, 6:00 PM MDT | Hail 1.75 | Wibaux, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 8, 1:15 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.4 hours before the alert went out and 225 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
- 1983 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 285 m²/s²
- 0-3 km storm-relative helicity
- 484 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KGGW 082325 SVRGGW MTC109-090030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GLASGOW MT 524 PM MDT SAT JUN 8 2002 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WIBAUX COUNTY IN NORTHEAST MONTANA * UNTIL 630 PM MDT * AT 520 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 23 MILES SOUTHWEST OF WIBAUX...MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WIBAUX BY 550 PM MDT VERY LARGE HAIL IS LIKELY WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...SEEK SHELTER INDOORS. A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. .END 79
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 8, 3:00 PM MDT, 2 hours 25 minutes earlier.
Area forecast discussion, Jun 8, 3:00 PM MDT, 2 hours 25 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
300 PM MDT SAT JUN 8 2002
.SHORT TERM...
COMPLEX STORM SYSTEM AFFECTING E MT WELL WITH SEVERE STORMS POISED TO
MOVE INTO MY SE ZONES IN THE NEXT SEVERAL HOURS. HAVE SIDED WITH THE
ETA MODEL MORE THROUGH THIS PERIOD WHICH MOVES SYSTEM OUT AND DRIES OUT
CWA A BIT QUICKER THAN SLOWER/WETTER AVN. QUITE A BIG DIFFERCE BETWEEN
THE MODELS...BUT ETA HAS HAD A GOOD TRACK RECORD.
THEREFORE HAVE TRIMMED POPS DOWN THROUGH MONDAY ACROSS ALL ZONES WITH
CATEGORICAL TONIGHT...LIKELIES SUNDAY...TO SCATTERED/S SUNDAY NIGHT
AND MONDAY. WRAP-AROUND LATER MONDAY MAY BRING RAIN LIKELY.
WINDS TODAY HAVE BEEN LOCALLY HIGHER (IN THE GLASGOW AND FORT PECK
AREAS) COMPARED TO MAV AND FWC NUMBERS...SO HAVE KEPT THE LAKE WIND
ADVISORY GOING FOR TONIGHT.
HAVE WEAKENED THE WORDING FOR TONIGHT/S SEVERE WEATHER ACROSS THE S AND
S ZONES OUTSIDE OF WATCH A BIT (ISOLATED STORMS MAY BE SEVERE).
GOING WATCH LOOKS GOOD.SEE LATEST SWOMCD FOR MORE INFO.
.LONG TERM...
LITTLE TIME TO LOOK AT MEDIUM RANGE MODELS...BUT HAVE DELAYED THE
CHANCE OF PRECIPITATION TO SATURDAY. UPPER RIDGE OVER THE WESTERN
STATES SHOULD ALLOW FOR DRY CONDITIONS WITH A WARMING TREND. NEGATIVELY
TILTED TROF HEADING TOWARD MT FROM CALIFORNIA WILL DECREASE STABILITY
FRIDAY...BUT LOW LEVELS HAVE TO MOISTEN UP FIRST. JAMBA
KGGW RWW 046/058 044/053 045/066 76975564
BBBB 045/072 045/077 050/077 050/077 761010223
KGDV RWW 048/062 044/055 046/070 76975564
BBBB 045/073 045/075 054/075 054/075 7610101223
.GGW...TORNADO WATCH FOR PRAIRIE AND WIBAUX COUNTIES UNTIL 7PM.
...LAKE WIND ADVISORY FOR FORT PECK LAKE TONIGHT.The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 4:33 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 57 min |
| Jun 8, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 61 min |
| Jun 8, 5:34 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 56 min |
| Jun 8, 5:46 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 59 min |
| Jun 8, 5:58 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Richland, Roosevelt | 62 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2002Every severe thunderstorm warning in 2002
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; radar from the NEXRAD Level II archive.