Alert archive / Montana / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 22, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 14, 2002, 4:54 PM MDT for Powell County, Montana. It was in force for 51 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 14, 2002, 4:54 PM MDT (22:54 UTC)
- Expired
- Jul 14, 2002, 5:45 PM MDT
- In force
- 51 min
- Issued by
- NWS Missoula, MT
- Area
- Counties, with a storm outline in the text
County Powell County, MT
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 14, 4:58 PM MDT | Hail 0.75 | Deer Lodge, MT | |
| Jul 14, 5:00 PM MDT | Hail 0.75 | Deer Lodge, MT | |
| Jul 14, 5:00 PM MDT | Hail 1 | Deer Lodge, 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 |
|---|---|---|---|
| Jul 14, 3:15 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 10.9 hours before the alert went out and 187 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
- 2735 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
340 WUUS55 KMSO 142254 SVRMSO MTC077-142345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 453 PM MDT SUN JUL 14 2002 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN POWELL COUNTY IN WEST CENTRAL MONTANA * UNTIL 545 PM MDT * AT 453 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM OVER DEER LODGE...OR 3 MILES SOUTHWEST OF DEER LODGE...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL REMAIN OVER REMOTE AREAS. THIS STORM PRODUCED 3/4 INCH HAIL IN DEER LODGE AT 450 PM MDT. DAMAGING WINDS IN EXCESS OF 55 MPH ARE LIKELY WITH THIS SEVERE THUNDERSTORM. LARGE HAIL IS POSSIBLE...ALONG WITH FREQUENT LIGHTNING AND HEAVY RAIN. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA. & LAT...LON 4642 11292 4627 11278 4650 11209 4672 11227
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 9:06 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake, Mineral | 24 min |
| Jul 13, 9:10 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 20 min |
| Jul 13, 9:40 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 50 min |
| Jul 13, 10:20 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 40 min |
| Jul 13, 10:21 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 39 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.