Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 22, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Dec 1, 2021, 3:42 AM MST for 14 counties in Montana. It was in force for 17 hr. 60 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
- Dec 1, 2021, 3:42 AM MST (10:42 UTC)
- Expired
- Dec 1, 2021, 9:00 PM MST
- In force
- 17 hr
- Issued by
- NWS Great Falls, MT
Counties Blaine County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Glacier County, MT, Hill County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Meagher County, MT, Phillips County, MT, Pondera County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 63 km from the middle of the area, began a volume at 10:39 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 |
|---|---|---|---|
| Dec 1, 3:58 AM MST | NON-TSTM WND GST 56 | 1 E Roy, MT | AWOS STATION K1OM OSCAR. |
| Dec 1, 4:00 AM MST | NON-TSTM WND GST 81 | 10 E Fort Benton, MT | WIND GUST AT 81 MPH. TIME AND LOCATION ESTIMATED. REPORT VIA FACEBOOK. |
| Dec 1, 4:21 AM MST | NON-TSTM WND GST 71 | Browning, MT | MESONET STATION BGRM8 BROWNING RAWS. |
| Dec 1, 4:23 AM MST | TSTM WND GST 99 | 1 Ene East Glacier Park, MT | MESONET STATION MTBRN TWO MEDICINE BRIDGE (MT DOT). |
| Dec 1, 4:38 AM MST | NON-TSTM WND GST 67 | 8 Nne Augusta, MT | AWOS STATION K1FM FOXTROT. |
| Dec 1, 5:21 AM MST | NON-TSTM WND GST 106 | 8 Se East Glacier Park, MT | MESONET STATION DCRM8 DEEP CREEK RAWS. |
| Dec 1, 5:23 AM MST | NON-TSTM WND GST 102 | 1 Ene East Glacier Park, MT | MESONET STATION MTBRN TWO MEDICINE BRIDGE (MT DOT). |
| Dec 1, 5:30 AM MST | NON-TSTM WND GST 93 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). |
| Dec 1, 5:37 AM MST | NON-TSTM WND GST 60 | 15 E Whitlash, MT | MESONET STATION GW0718 JOPLIN 25NNW. |
| Dec 1, 5:45 AM MST | NON-TSTM WND GST 58 | 8 Ene Ferdig, MT | MESONET STATION MTM53 MDA OILMONT. |
| Dec 1, 5:45 AM MST | NON-TSTM WND GST 61 | 17 N Joplin, MT | MESONET STATION GW0625 JOPLIN 17 NORTH. |
| Dec 1, 5:45 AM MST | NON-TSTM WND GST 71 | 5 Se Browning, MT | MESONET STATION SHBM BROWNING. |
| Dec 1, 5:54 AM MST | NON-TSTM WND GST 73 | 14 Sw Augusta, MT | UPPER ELK CK. |
| Dec 1, 5:56 AM MST | NON-TSTM WND GST 60 | 11 Ssw Whitlash, MT | MESONET STATION GW0659 GRASSY BUTTE 2SE. |
| Dec 1, 6:21 AM MST | NON-TSTM WND GST 108 | 8 Se East Glacier Park, MT | MESONET STATION DCRM8 DEEP CREEK RAWS. |
| Dec 1, 6:25 AM MST | NON-TSTM WND GST 55 | 3 Sw Lewistown, MT | ASOS STATION KLWT LEWISTOWN AIRPORT. |
| Dec 1, 6:31 AM MST | NON-TSTM WND GST 58 | 14 Nnw Joplin, MT | MESONET STATION DW4821 CHESTER. |
| Dec 1, 6:34 AM MST | NON-TSTM WND GST 64 | 18 Sw Augusta, MT | GOSS. |
| Dec 1, 6:34 AM MST | NON-TSTM WND GST 68 | 11 Ssw Whitlash, MT | FENGER. |
| Dec 1, 6:37 AM MST | NON-TSTM WND GST 65 | 6 Nnw Sunburst, MT | MESONET STATION MTSWT SWEETGRASS (MT DOT). |
| Dec 1, 6:40 AM MST | NON-TSTM WND GST 67 | 13 S Marysville, MT | MESONET STATION MTMDP MACDONALD PASS (MT DOT). |
| Dec 1, 6:42 AM MST | NON-TSTM WND GST 65 | 6 Nnw Sunburst, MT | MESONET STATION MTSWT SWEETGRASS (MT DOT). |
| Dec 1, 6:45 AM MST | NON-TSTM WND GST 59 | 14 Nnw Joplin, MT | MATTSON. |
| Dec 1, 6:45 AM MST | NON-TSTM WND GST 63 | 8 Ese Fort Benton, MT | MESONET STATION MTM02 10.2 S LOMA (MT-MESO). |
| Dec 1, 6:45 AM MST | NON-TSTM WND GST 68 | 12 Wnw Cut Bank, MT | MESONET STATION BFAM 12.1 W CUT BANK (AGRIMET). |
| Dec 1, 6:46 AM MST | NON-TSTM WND GST 59 | 14 Nnw Joplin, MT | MESONET STATION DW4821 CHESTER. |
| Dec 1, 6:48 AM MST | NON-TSTM WND GST 79 | 4 Sse Bynum, MT | MILLER COLONY. |
| Dec 1, 7:00 AM MST | NON-TSTM WND GST 67 | 4 Wsw Vaughn, MT | |
| Dec 1, 7:00 AM MST | NON-TSTM WND GST 70 | 7 Nw Choteau, MT | REPORT RELAYED VIA SOCIAL MEDIA. |
| Dec 1, 7:00 AM MST | NON-TSTM WND GST 71 | 15 Wnw Wolf Creek, MT | MESONET STATION MTROG ROGERS PASS (MT DOT). |
| Dec 1, 7:10 AM MST | NON-TSTM WND GST 71 | 13 S Marysville, MT | MESONET STATION MTMDP MACDONALD PASS (MT DOT). |
| Dec 1, 7:25 AM MST | NON-TSTM WND GST 73 | 13 S Marysville, MT | MESONET STATION MTMDP MACDONALD PASS (MT DOT). |
| Dec 1, 7:30 AM MST | NON-TSTM WND GST 55 | 13 S Marysville, MT | MESONET STATION MTM68 4.8 S BLOSSBURG (MT-MESO). |
| Dec 1, 7:30 AM MST | NON-TSTM WND GST 85 | 17 Wsw Bynum, MT | MELTWATER. |
| Dec 1, 7:43 AM MST | NON-TSTM WND GST 61 | 7 Ne Craig, MT | MESONET STATION MTYEP MDT - GARY COOPER BRIDGE - DEARBORN. |
| Dec 1, 7:45 AM MST | NON-TSTM WND GST 68 | 12 Wnw Cut Bank, MT | MESONET STATION BFAM 12.1 W CUT BANK (AGRIMET). |
| Dec 1, 7:58 AM MST | NON-TSTM WND GST 69 | 8 Nne Augusta, MT | AWOS STATION K1FM FOXTROT. |
| Dec 1, 8:00 AM MST | NON-TSTM WND GST 62 | 17 N Joplin, MT | MESONET STATION GW0625 JOPLIN 17 NORTH. |
| Dec 1, 8:00 AM MST | NON-TSTM WND DMG | 5 Nw Choteau, MT | POWER LINES DOWN AT TETON CANYON ROAD AND US HWY 89. |
| Dec 1, 8:09 AM MST | NON-TSTM WND GST 62 | 18 Wsw Bynum, MT | MESONET STATION GSNM8 GLEASON RAWS. |
| Dec 1, 8:29 AM MST | NON-TSTM WND GST 64 | 10 W Simms, MT | NWE. |
| Dec 1, 8:30 AM MST | NON-TSTM WND GST 65 | 8 Ene Ferdig, MT | MESONET STATION MTM53 MDA OILMONT. |
| Dec 1, 8:39 AM MST | NON-TSTM WND GST 64 | 2 Nw Pendroy, MT | MESONET STATION MTPND PENDROY (MT DOT). |
| Dec 1, 8:47 AM MST | NON-TSTM WND GST 55 | Kevin, MT | MESONET STATION DW0975 KEVIN. |
| Dec 1, 8:56 AM MST | NON-TSTM WND GST 70 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. |
| Dec 1, 9:09 AM MST | NON-TSTM WND GST 74 | 18 Wsw Bynum, MT | MESONET STATION GSNM8 GLEASON RAWS. |
| Dec 1, 9:30 AM MST | NON-TSTM WND GST 58 | 3 Ene Benchland, MT | MESONET STATION MTM47 MDA - BENCHLAND. |
| Dec 1, 9:30 AM MST | NON-TSTM WND GST 91 | 10 W Dupuyer, MT | THEODORE ROOSEVELT MEMORIAL RANCH. REPORT VIA FACEBOOK. |
| Dec 1, 9:39 AM MST | NON-TSTM WND GST 57 | 11 Ssw Roy, MT | BLACK BUTTE RD. |
| Dec 1, 9:56 AM MST | NON-TSTM WND GST 77 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. |
| Dec 1, 10:00 AM MST | NON-TSTM WND GST 58 | 1 Wsw Sun Prairie, MT | MESONET STATION FW5493 VAUGHN. |
| Dec 1, 10:00 AM MST | NON-TSTM WND GST 60 | 10 Nne Vaughn, MT | MESONET STATION MTM21 9.6 NE VAUGHN (MT-MESO). |
| Dec 1, 10:00 AM MST | NON-TSTM WND GST 63 | 5 Ese Pendroy, MT | MESONET STATION RICMT RICE RIDGE. |
| Dec 1, 10:00 AM MST | NON-TSTM WND DMG | 1 W Power, MT | PUBLIC REPORTED PHOTO OF A HOUSE WITH SIGNIFICANT ROOF DAMAGE WEST OF POWER, MT. |
| Dec 1, 10:15 AM MST | NON-TSTM WND GST 63 | 4 Nnw Choteau, MT | COCONUT GROVE. |
| Dec 1, 10:15 AM MST | NON-TSTM WND GST 64 | 5 Ese Pendroy, MT | MESONET STATION RICMT RICE RIDGE. |
| Dec 1, 10:15 AM MST | NON-TSTM WND GST 80 | 6 N Choteau, MT | MESONET STATION TRFM TETON RIVER - AGRIMET. |
| Dec 1, 10:17 AM MST | NON-TSTM WND GST 62 | 5 Wsw Great Falls, MT | ASOS STATION KGTF GREAT FALLS AIRPORT. |
| Dec 1, 10:25 AM MST | NON-TSTM WND GST 67 | 1 Nne Choteau, MT | MESONET STATION KCII CHOTEAU (GTFWFO). |
| Dec 1, 10:30 AM MST | NON-TSTM WND GST 63 | 7 Ne Choteau, MT | MESONET STATION MTM49 6.9 NE CHOTEAU (MT-MESO). |
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 00:00Z, 10.7 hours before the alert went out and 51 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
- 1359 m above ground
- 0-6 km bulk shear
- 94 kt
- 0-1 km storm-relative helicity
- 363 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
245 WWUS85 KTFX 011042 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 342 AM MST Wed Dec 1 2021 MTZ112>115-117-020400- /O.NEW.KTFX.FW.W.0022.211201T1042Z-211202T0400Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Hill and Blaine Counties- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front-Chouteau and Fergus Counties- Central and Eastern Lewis and Clark National Forest Areas- 342 AM MST Wed Dec 1 2021 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MST THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112, 113, 114, 115, AND 117... The National Weather Service in Great Falls has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 9 PM MST this evening. * AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty, Hill and Blaine Counties, Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front, Chouteau and Fergus Counties and Central and Eastern Lewis and Clark National Forest Areas. * WINDS...West 40 to 50 mph, with gusts from 60 to 80 mph. * RELATIVE HUMIDITY...As low as 30 percent. * IMPACTS...The very strong winds will make any new fires very difficult to contain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds and low relative humidity can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ http://www.weather.gov/greatfalls
1 follow-up statement
955 WWUS85 KTFX 020336 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 836 PM MST Wed Dec 1 2021 MTZ112>115-117-020445- /O.EXP.KTFX.FW.W.0022.000000T0000Z-211202T0400Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Hill and Blaine Counties- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front-Chouteau and Fergus Counties- Central and Eastern Lewis and Clark National Forest Areas- 836 PM MST Wed Dec 1 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MST THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112, 113, 114, 115, AND 117... Strong and gusty winds have diminished and relative humidity is rising. The Red Flag Warning will be allowed to expire at 9 PM MST. $$ http://www.weather.gov/greatfalls
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.