Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 6, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Jul 10, 2021, 2:09 PM MDT for 15 counties in Montana. It took effect at Jul 11, 2021, 12:00 PM MDT. It was in force for 9 hr. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 10, 2021, 2:09 PM MDT (20:09 UTC)
- In effect from
- Jul 11, 2021, 12:00 PM MDT
- Expired
- Jul 11, 2021, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Missoula, MT
Counties Beaverhead County, MT, Deer Lodge County, MT, Flathead County, MT, Glacier County, MT, Granite County, MT, Jefferson County, MT, Lake County, MT, Lewis and Clark County, MT, Madison County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 55 km from the middle of the area, began a volume at 20:07 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 |
|---|---|---|---|
| Jul 11, 3:23 PM MDT | TSTM WND GST 60 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. SUSTAINED WIND 41MPH AT TIME OF GUST. |
| Jul 11, 3:24 PM MDT | TSTM WND DMG | Cut Bank, MT | POWER LINES DOWN IN CUT BANK WITH A HIGH NUMBER OF POWER OUTAGES. ALSO REPORTED A TREE WAS DOWNED. |
| Jul 11, 3:29 PM MDT | TSTM WND GST 63 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. |
| Jul 11, 5:31 PM MDT | NON-TSTM WND GST 63 | 14 Sw Simms, MT | MILITARY SITE MEASURED NON CONVECTIVE GUST OF 63 MPH WITH SOUTHWARD MOVING SYNOPTIC BOUNDARY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 8.2 hours before the alert went out and 224 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
- 2414 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
913 WWUS85 KMSO 102009 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 209 PM MDT Sat Jul 10 2021 MTZ106-108>111-120300- /O.UPG.KMSO.FW.A.0002.210711T1800Z-210712T0300Z/ /O.NEW.KMSO.FW.W.0006.210711T1800Z-210712T0300Z/ West Lolo-East Lolo-Bitterroot-Deerlodge/West Beaverhead- East Beaverhead- 209 PM MDT Sat Jul 10 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SUNDAY... The Fire Weather Watch is no longer in effect. * Affected area: Fire Zone 106 (West Lolo). Fire Zone 108 (East Lolo). Fire Zone 109 (Bitterroot). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). * Impacts: The combination of gusty winds and low humidity will produce critical fire weather conditions. * Winds: Sustained out of the west at 15 to 30 mph with gusts to 35 mph. * Minimum humidities: 8 to 15 percent. && $$ MTZ107-120300- /O.NEW.KMSO.FW.W.0006.210711T1800Z-210712T0300Z/ Salish and Kootenai Reservation- 209 PM MDT Sat Jul 10 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SUNDAY... * Impacts: The combination of gusty winds and low humidity will produce critical fire weather conditions. * Winds: Sustained out of the west at 15 to 25 mph with gusts to 35 mph. * Minimum humidities: 8 to 15 percent. && $$
2 follow-up statements
284 WWUS85 KMSO 111317 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 717 AM MDT Sun Jul 11 2021 MTZ105-120300- /O.EXA.KMSO.FW.W.0006.210711T1800Z-210712T0300Z/ Flathead/Glacier Park- 717 AM MDT Sun Jul 11 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING... * Affected area: Fire Zone 105 (Flathead/Glacier Park). * Impacts: The combination of gusty winds and low humidity will produce critical fire weather conditions. Isolated thunderstorms are also expected for GNP this afternoon and early evening. * Winds: Sustained out of the west at 15 to 30 mph with gusts to 35 mph. * Minimum humidities: 10 to 20 percent. && $$ MTZ106>111-120300- /O.CON.KMSO.FW.W.0006.210711T1800Z-210712T0300Z/ West Lolo-Salish and Kootenai Reservation-East Lolo-Bitterroot- Deerlodge/West Beaverhead-East Beaverhead- 717 AM MDT Sun Jul 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING... * Affected area: Fire Zone 106 (West Lolo). Fire Zone 107 (Salish and Kootenai Reservation). Fire Zone 108 (East Lolo). Fire Zone 109 (Bitterroot). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). * Impacts: The combination of gusty winds and low humidity will produce critical fire weather conditions. * Winds: Sustained out of the west at 15 to 30 mph with gusts to 35 mph. * Minimum humidities: 8 to 15 percent. && $$
508 WWUS85 KMSO 120232 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 832 PM MDT Sun Jul 11 2021 MTZ106>111-120345- /O.EXP.KMSO.FW.W.0006.000000T0000Z-210712T0300Z/ West Lolo-Salish and Kootenai Reservation-East Lolo-Bitterroot- Deerlodge/West Beaverhead-East Beaverhead- 832 PM MDT Sun Jul 11 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... * Affected area: Fire Zone 106 (West Lolo). Fire Zone 107 (Salish and Kootenai Reservation). Fire Zone 108 (East Lolo). Fire Zone 109 (Bitterroot). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). && $$ MTZ105-120345- /O.EXP.KMSO.FW.W.0006.000000T0000Z-210712T0300Z/ Flathead/Glacier Park- 832 PM MDT Sun Jul 11 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... * Affected area: Fire Zone 105 (Flathead/Glacier Park). && $$
Nearby
Red Flag Warnings in Montana, 2021Every red flag warning in 2021
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.