Alert archive / Montana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 53, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 27, 2012, 3:47 PM MDT for Missoula County, Montana. It was in force for 41 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 27, 2012, 3:47 PM MDT (21:47 UTC)
- Expired
- Jul 27, 2012, 4:28 PM MDT
- In force
- 41 min
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
County Missoula County, MT
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 9.8 hours before the alert went out and 232 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1959 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
114
WUUS55 KMSO 272147
SVRMSO
MTC063-272245-
/O.NEW.KMSO.SV.W.0053.120727T2147Z-120727T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
347 PM MDT FRI JUL 27 2012
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN MISSOULA COUNTY IN WEST CENTRAL MONTANA...
* UNTIL 445 PM MDT.
* AT 342 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE.
THIS STORM WAS LOCATED NEAR WEST RIVERSIDE BURN AREA... OR ABOUT 6
MILES NORTHEAST OF MISSOULA...AND WAS MOVING EAST AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...BONNER...CLEARWATER...EAST MISSOULA...
GREENOUGH...MISSOULA...POTOMAC...TURAH...TWIN CREEKS AND WEST
RIVERSIDE BURN AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND HAIL...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 4683 11335 4683 11341 4680 11342 4680 11348
4682 11399 4700 11399 4704 11335
TIME...MOT...LOC 2147Z 270DEG 18KT 4691 11384
$$
KITSMILLER1 follow-up statement
523
WWUS55 KMSO 272228
SVSMSO
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
428 PM MDT FRI JUL 27 2012
MTC063-272238-
/O.CAN.KMSO.SV.W.0053.000000T0000Z-120727T2245Z/
MISSOULA MT-
428 PM MDT FRI JUL 27 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MISSOULA COUNTY IS
CANCELLED...
LAT...LON 4683 11335 4683 11341 4680 11342 4680 11348
4682 11399 4700 11399 4704 11335
TIME...MOT...LOC 2228Z 270DEG 18KT 4691 11354
$$
KITSMILLERThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:12 PM MDT | Special Weather Statement | MSO | Missoula | 48 min |
| Jul 27, 3:14 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 46 min |
| Jul 27, 3:53 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Powell, Silver Bow | 67 min |
| Jul 27, 3:54 PM MDT | Flash Flood Warning | MSO | Missoula | 73 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.