Alert archive / Montana / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 31, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jun 26, 2012, 10:25 AM MDT for Flathead County, Lake County, Missoula County, Montana. It was in force for 50 min. 2 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
- Jun 26, 2012, 10:25 AM MDT (16:25 UTC)
- Expired
- Jun 26, 2012, 11:15 AM MDT
- In force
- 50 min
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
Counties Flathead County, MT, Lake County, MT, Missoula County, MT
The radar
The Missoula radar (KMSX), 113 km from the middle of the area, began a volume at 16:28 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 26, 10:35 AM MDT | TSTM WND GST 58 | 1 Sse Swan Lake, MT | A FOUR INCH DIAMETER ASPEN TREE WAS SNAPPED OFF MIDWAY UP. DID NOT HIT ANYTHING OR CAUSE OTHER DAMAGE |
| Jun 26, 11:21 AM MDT | HAIL 0.5 | 6 E Essex, MT | 1/2 INCH HAIL WITH HEAVY RAIN FOR 10 MINUTES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 4.4 hours before the alert went out and 193 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
- 29 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1214 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
399 WUUS55 KMSO 261625 SVRMSO MTC029-047-063-261715- /O.NEW.KMSO.SV.W.0031.120626T1625Z-120626T1715Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 1025 AM MDT TUE JUN 26 2012 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL FLATHEAD COUNTY IN NORTHWEST MONTANA... NORTHEASTERN LAKE COUNTY IN NORTHWEST MONTANA... NORTHERN MISSOULA COUNTY IN WEST CENTRAL MONTANA... * UNTIL 1115 AM MDT. * AT 1018 AM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 12 MILES SOUTH OF SWAN LAKE...OR ABOUT 15 MILES EAST OF POLSON...AND WAS MOVING NORTH AT 55 MPH. * LOCATIONS IMPACTED INCLUDE...BLACKTAIL...ESSEX...FINLEY POINT... HUNGRY HORSE...MARTIN CITY...SALMON PRAIRIE...SWAN LAKE AND WOODS BAY. 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 4842 11407 4830 11337 4755 11377 4759 11407 TIME...MOT...LOC 1625Z 183DEG 46KT 4784 11386 $$ KITSMILLER
1 follow-up statement
032 WWUS55 KMSO 261710 SVSMSO SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 1110 AM MDT TUE JUN 26 2012 MTC029-047-063-261720- /O.EXP.KMSO.SV.W.0031.000000T0000Z-120626T1715Z/ MISSOULA MT-LAKE MT-FLATHEAD MT- 1110 AM MDT TUE JUN 26 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FLATHEAD... NORTHEASTERN LAKE AND NORTHERN MISSOULA COUNTIES EXPIRES AT 1115 AM MDT... LAT...LON 4842 11407 4830 11337 4755 11377 4759 11407 TIME...MOT...LOC 1710Z 183DEG 46KT 4841 11381 $$ KITSMILLER
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 2:16 AM MDT | Special Weather Statement | MSO | Missoula | 44 min |
| Jun 26, 2:35 AM MDT | Red Flag Warning | MSO | Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 1 more | 21 hr |
| Jun 26, 2:54 AM MDT | Special Weather Statement | MSO | Flathead | 36 min |
| Jun 26, 3:59 AM MDT | Special Weather Statement | MSO | Flathead | 31 min |
| Jun 26, 4:24 AM MDT | Special Weather Statement | MSO | Flathead | 36 min |
| Jun 26, 5:02 AM MDT | Special Weather Statement | MSO | Sanders | 28 min |
| Jun 26, 5:15 AM MDT | Special Weather Statement | MSO | Flathead | 30 min |
| Jun 26, 5:41 AM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 34 min |
| Jun 26, 6:00 AM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 30 min |
| Jun 26, 6:25 AM MDT | Severe Thunderstorm Warning | MSO | Flathead | 35 min |
| Jun 26, 6:38 AM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lincoln, Sanders | 52 min |
| Jun 26, 6:53 AM MDT | Severe Thunderstorm Warning | MSO | Flathead | 37 min |
| Jun 26, 8:50 AM MDT | Lake Wind Advisory | MSO | Flathead, Lake, Sanders | 9 hr |
| Jun 26, 10:07 AM MDT | Areal Flood Advisory | MSO | Lake | 9 hr |
| Jun 26, 10:08 AM MDT | Special Weather Statement | MSO | Flathead, Lake | 52 min |
| Jun 26, 10:11 AM MDT | Special Weather Statement | MSO | Granite, Missoula | 49 min |
| Jun 26, 11:09 AM MDT | Severe Thunderstorm Warning | MSO | Flathead, Missoula, Powell | 35 min |
| Jun 26, 11:11 AM MDT | Flash Flood Warning | MSO | Flathead | 3 hr |
| Jun 26, 1:16 PM MDT | Areal Flood Warning | MSO | Flathead | 24 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.