Alert archive / Montana / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 21, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Aug 10, 2005, 6:34 PM MDT for Flathead 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
- Aug 10, 2005, 6:34 PM MDT (00:34 UTC)
- Expired
- Aug 10, 2005, 7:15 PM MDT
- In force
- 41 min
- Issued by
- NWS Missoula, MT
- Area
- Counties, with a storm outline in the text
County Flathead County, MT
The radar
The Missoula radar (KMSX), 182 km from the middle of the area, began a volume at 00:34 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, 0.6 hours before the alert went out and 180 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
- 13 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 3300 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 47 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 KMSO 110034 SVRMSO MTC029-110115- /O.NEW.KMSO.SV.W.0021.050811T0034Z-050811T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 634 PM MDT WED AUG 10 2005 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN FLATHEAD COUNTY IN NORTHWEST MONTANA * UNTIL 715 PM MDT * AT 629 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR OLNEY...OR ABOUT 28 MILES NORTHWEST OF EVERGREEN...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... POLEBRIDGE BY 700 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 4861 11469 4848 11455 4863 11383 4894 11441 $$
1 follow-up statement
000 WWUS55 KMSO 110107 SVSMSO SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 706 PM MDT WED AUG 10 2005 MTC029-110115- /O.CON.KMSO.SV.W.0021.000000T0000Z-050811T0115Z/ FLATHEAD MT- 706 PM MDT WED AUG 10 2005 ...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHERN FLATHEAD COUNTY... AT 704 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A STRONG THUNDERSTORM PRODUCING PEA SIZE HAIL...HEAVY RAIN AND GUSTY WINDS TO 30 MPH. THIS STORM STILL HAS THE POTENTIAL OF PRODUCING QUARTER SIZE HAIL AND WINDS UP TO 60 MPH. THE STORM IS NEAR POLEBRIDGE...OR ABOUT 33 MILES NORTH OF EVERGREEN...MOVING NORTHEAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... POLEBRIDGE BY 715 PM MDT LAT...LON 4861 11469 4848 11455 4863 11383 4894 11441 $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 7:17 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 27 min |
| Aug 10, 8:19 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 26 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2005Every severe thunderstorm warning in 2005
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.