Alert archive / Montana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 50, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 22, 2012, 10:38 PM MDT for Flathead County, Lincoln County, Montana. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 22, 2012, 10:38 PM MDT (04:38 UTC)
- Expired
- Jul 22, 2012, 11:30 PM MDT
- In force
- 52 min
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
Counties Flathead County, MT, Lincoln County, MT
The radar
The Missoula radar (KMSX), 183 km from the middle of the area, began a volume at 04:38 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 nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 4.6 hours before the alert went out and 162 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
- 2959 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
486
WUUS55 KMSO 230438
SVRMSO
MTC029-053-230530-
/O.NEW.KMSO.SV.W.0050.120723T0438Z-120723T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
1038 PM MDT SUN JUL 22 2012
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN LINCOLN COUNTY IN NORTHWEST MONTANA...
NORTHWESTERN FLATHEAD COUNTY IN NORTHWEST MONTANA...
* UNTIL 1130 PM MDT.
* AT 1028 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM.
THIS STORM WAS LOCATED 22 MILES SOUTHWEST OF TREGO...OR ABOUT 21
MILES EAST OF LIBBY...AND WAS MOVING NORTHEAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...FORTINE...LUPFER...OLNEY...
POLEBRIDGE...RADNOR...STRYKER AND TREGO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DAMAGING WINDS 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 4860 11404 4814 11517 4831 11557 4902 11475
4901 11457
TIME...MOT...LOC 0438Z 228DEG 43KT 4851 11496
$$
LOEFFELBEIN2 follow-up statements
134
WWUS55 KMSO 230514
SVSMSO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
1114 PM MDT SUN JUL 22 2012
MTC029-053-230530-
/O.CON.KMSO.SV.W.0050.000000T0000Z-120723T0530Z/
LINCOLN MT-FLATHEAD MT-
1114 PM MDT SUN JUL 22 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM MDT
FOR NORTHWESTERN FLATHEAD AND NORTHEASTERN LINCOLN COUNTIES...
* AT 1106 PM MDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM. THIS STORM WAS LOCATED 7 MILES NORTHEAST OF
RADNOR...OR ABOUT 32 MILES NORTH OF EVERGREEN...AND WAS MOVING
NORTHEAST AT 45 MPH. LOCATIONS IN THE PATH OF THIS STORM INCLUDE
POLEBRIDGE.
LAT...LON 4860 11404 4836 11463 4860 11524 4902 11475
4901 11457
TIME...MOT...LOC 0512Z 238DEG 39KT 4869 11444
$$
LOEFFELBEIN200
WWUS55 KMSO 230526
SVSMSO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
1126 PM MDT SUN JUL 22 2012
MTC029-053-230536-
/O.EXP.KMSO.SV.W.0050.000000T0000Z-120723T0530Z/
LINCOLN MT-FLATHEAD MT-
1126 PM MDT SUN JUL 22 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FLATHEAD AND
NORTHEASTERN LINCOLN COUNTIES EXPIRES AT 1130 PM MDT...
LAT...LON 4860 11404 4836 11463 4860 11524 4902 11475
4901 11457
TIME...MOT...LOC 0526Z 238DEG 39KT 4877 11424
$$
LOEFFELBEINThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 9:56 PM MDT | Special Weather Statement | MSO | Lincoln | 49 min |
| Jul 22, 11:28 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 32 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2012Every severe thunderstorm warning in 2012
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.