Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 23, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Dec 1, 2021, 10:24 PM MST for 6 counties in Montana. It was in force for 16 hr. 10 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, 10:24 PM MST (05:24 UTC)
- Expired
- Dec 2, 2021, 1:57 PM MST
- In force
- 16 hr
- Issued by
- NWS Great Falls, MT
Counties Glacier County, MT, Lewis and Clark County, MT, Liberty County, MT, Pondera County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 97 km from the middle of the area, began a volume at 05:27 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 2, 2:45 AM MST | NON-TSTM WND GST 60 | 2 Se Browning, MT | MESONET STATION MTBWG BROWNING (MT DOT). |
| Dec 2, 3:30 AM MST | NON-TSTM WND GST 64 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). |
| Dec 2, 3:58 AM MST | NON-TSTM WND GST 58 | 8 Nne Augusta, MT | AWOS STATION K1FM FOXTROT. |
| Dec 2, 4:00 AM MST | NON-TSTM WND GST 55 | 5 Se Browning, MT | MESONET STATION SHBM BROWNING. |
| Dec 2, 4:00 AM MST | NON-TSTM WND GST 60 | 9 Ne Augusta, MT | 60 MPH WIND GUST AT THE GREENFIELD IRRIGATION DISTRICT WEST SIDE MESONET SITE GIDM8. |
| Dec 2, 4:12 AM MST | NON-TSTM WND GST 59 | 14 Sw Simms, MT | AWOS STATION K1GM GOLF. |
| Dec 2, 9:45 AM MST | NON-TSTM WND GST 57 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). |
| Dec 2, 9:46 AM MST | NON-TSTM WND GST 63 | 2 Nw Pendroy, MT | MESONET STATION MTPND PENDROY (MT DOT). |
| Dec 2, 10:00 AM MST | NON-TSTM WND GST 55 | 5 Ese Pendroy, MT | MESONET STATION RICMT RICE RIDGE. |
| Dec 2, 10:58 AM MST | NON-TSTM WND GST 49 | 8 Nne Augusta, MT | AWOS STATION K1FM FOXTROT. |
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, 5.4 hours before the alert went out and 138 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
- 2065 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 541 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
517 WWUS85 KTFX 020524 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 1024 PM MST Wed Dec 1 2021 MTZ112-114-021200- /O.NEW.KTFX.FW.W.0023.211202T0524Z-211203T0000Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 1024 PM MST Wed Dec 1 2021 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THURSDAY FOR STRONG GUSTY WINDS FOR FIRE WEATHER ZONES 112 AND 114... The National Weather Service in Great Falls has issued a Red Flag Warning for strong gusty winds, which is in effect until 5 PM MST Thursday. * AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty and Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front. * WINDS...West 30 to 40 mph, with gusts up to 60 mph. * IMPACTS...The strong winds will make any new fire starts 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, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ http://www.weather.gov/greatfalls
2 follow-up statements
226 WWUS85 KTFX 021047 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 347 AM MST Thu Dec 2 2021 MTZ112-114-030000- /O.CON.KTFX.FW.W.0023.000000T0000Z-211203T0000Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 347 AM MST Thu Dec 2 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR STRONG GUSTY WINDS FOR FIRE WEATHER ZONES 112 AND 114... * AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty and Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front. * WINDS...West 30 to 40 mph, with gusts up to 65 mph. * IMPACTS...The strong winds will make any new fire starts difficult to contain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ http://www.weather.gov/greatfalls
803 WWUS85 KTFX 022057 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 157 PM MST Thu Dec 2 2021 MTZ112-114-022200- /O.CAN.KTFX.FW.W.0023.000000T0000Z-211203T0000Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 157 PM MST Thu Dec 2 2021 ...RED FLAG WARNING IS CANCELLED FOR FIRE WEATHER ZONES 112 AND 114... The National Weather Service in Great Falls has cancelled the Red Flag Warning. Cooler air has moved into the region, with higher humidity and lower wind speeds. $$ http://www.weather.gov/greatfalls
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 2, 1:48 PM MST | High Wind Watch | TFX | 24 hr | |
| Dec 2, 2:02 PM MST | Winter Storm Watch | TFX | 23 hr |
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.