Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Mar 27, 2021, 2:37 AM MDT for 17 counties in Montana. It took effect at Mar 28, 2021, 9:00 AM MDT. It was in force for 11 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
- Mar 27, 2021, 2:37 AM MDT (08:37 UTC)
- In effect from
- Mar 28, 2021, 9:00 AM MDT
- Expired
- Mar 28, 2021, 8:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS Great Falls, MT
Counties Blaine County, MT, Broadwater County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Glacier County, MT, Hill County, MT, Jefferson 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), 33 km from the middle of the area, began a volume at 08:41 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 |
|---|---|---|---|
| Mar 28, 9:11 AM MDT | NON-TSTM WND GST 58 | Saint Mary, MT | MESONET STATION SRYM8 SAINT MARY RAWS. |
| Mar 28, 9:21 AM MDT | NON-TSTM WND GST 85 | 8 Se East Glacier Park, MT | MESONET STATION DCRM8 DEEP CREEK RAWS. PEAK WIND GUST SO FAR AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 9:52 AM MDT | NON-TSTM WND GST 62 | 7 Ese Hilger, MT | MESONET STATION JPKM8 JUDITH PEAK RAWS. |
| Mar 28, 10:10 AM MDT | NON-TSTM WND GST 62 | 1 N Babb, MT | NORTH WU. |
| Mar 28, 10:44 AM MDT | NON-TSTM WND GST 78 | 14 Sw Augusta, MT | UPPER ELK CREEK. |
| Mar 28, 11:00 AM MDT | NON-TSTM WND GST 56 | 11 Nne Bozeman, MT | MESONET STATION BBCST 11.1 NE BOZEMAN (AVALANCHE). |
| Mar 28, 11:00 AM MDT | NON-TSTM WND GST 57 | 10 Nne Bozeman, MT | MESONET STATION BBSLH 10.2 NE BOZEMAN (AVALANCHE). |
| Mar 28, 11:10 AM MDT | NON-TSTM WND GST 55 | 15 Wnw Wolf Creek, MT | MESONET STATION MTROG ROGERS PASS (MT DOT). |
| Mar 28, 11:21 AM MDT | NON-TSTM WND GST 85 | 8 Se East Glacier Park, MT | MESONET STATION DCRM8 DEEP CREEK RAWS. |
| Mar 28, 11:40 AM MDT | NON-TSTM WND GST 70 | 2 Se Browning, MT | MESONET STATION MTBWG BROWNING (MT DOT). FIRST 58+ MPH WIND GUST AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 11:45 AM MDT | NON-TSTM WND GST 59 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). FIRST 58+ MPH WIND GUST AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 11:45 AM MDT | NON-TSTM WND GST 63 | Babb, MT | US89 WFL. |
| Mar 28, 11:49 AM MDT | NON-TSTM WND GST 63 | 16 Wsw Bynum, MT | MELTWATER. |
| Mar 28, 11:56 AM MDT | NON-TSTM WND GST 55 | 13 S Marysville, MT | MESONET STATION MTMDP MACDONALD PASS (MT DOT). |
| Mar 28, 11:56 AM MDT | NON-TSTM WND GST 59 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. FIRST 58+ MPH WIND GUST AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 12:00 PM MDT | NON-TSTM WND GST 52 | 13 S Marysville, MT | MESONET STATION MTM68 4.8 S BLOSSBURG (MT-MESO). |
| Mar 28, 12:04 PM MDT | NON-TSTM WND GST 63 | 10 W Simms, MT | NWE. |
| Mar 28, 12:05 PM MDT | NON-TSTM WND GST 64 | Augusta, MT | AMB. |
| Mar 28, 12:09 PM MDT | NON-TSTM WND GST 59 | 18 Sw Augusta, MT | GOSS RANCH. |
| Mar 28, 12:14 PM MDT | NON-TSTM WND GST 58 | 3 Sse Bozeman, MT | SOURDOUGH. |
| Mar 28, 12:15 PM MDT | NON-TSTM WND GST 51 | 10 Nne Vaughn, MT | MESONET STATION MTM21 9.6 NE VAUGHN (MT-MESO). |
| Mar 28, 12:20 PM MDT | NON-TSTM WND GST 64 | 9 Wsw Floweree, MT | PORTAGE DENT BRIDGE. |
| Mar 28, 12:24 PM MDT | NON-TSTM WND GST 75 | 2 Se Browning, MT | MESONET STATION MTBWG BROWNING (MT DOT). FIRST 75+ MPH WIND GUST AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 12:30 PM MDT | NON-TSTM WND GST 47 | 7 Sse Ulm, MT | |
| Mar 28, 12:30 PM MDT | NON-TSTM WND GST 64 | 1 Nnw Browning, MT | RISING SUM. |
| Mar 28, 12:39 PM MDT | NON-TSTM WND GST 57 | 7 E Marysville, MT | WIND GUSTS OF 57 MPH WERE RECORDED IN SILVER CITY, MT AROUND 12:39 PM TODAY. |
| Mar 28, 12:39 PM MDT | NON-TSTM WND GST 57 | 7 E Marysville, MT | |
| Mar 28, 12:45 PM MDT | NON-TSTM WND GST 72 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). |
| Mar 28, 12:45 PM MDT | NON-TSTM WND GST 72 | 14 W Bynum, MT | MESONET STATION DELMT DELLWO (MCSCN). PEAK WIND GUST SO FAR AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 12:55 PM MDT | NON-TSTM WND GST 56 | 1 Nne Choteau, MT | MESONET STATION KCII CHOTEAU (GTFWFO). |
| Mar 28, 1:00 PM MDT | NON-TSTM WND GST 56 | 2 Wnw Great Falls, MT | TIME ESTIMATED. PEAK WIND GUST SO FAR. |
| Mar 28, 1:00 PM MDT | NON-TSTM WND GST 66 | 5 Se Browning, MT | SPRING HILL. |
| Mar 28, 1:04 PM MDT | NON-TSTM WND GST 62 | 7 Nnw Augusta, MT | KOVARI. |
| Mar 28, 1:21 PM MDT | NON-TSTM WND GST 64 | Browning, MT | MESONET STATION BGRM8 BROWNING RAWS. |
| Mar 28, 1:27 PM MDT | NON-TSTM WND GST 60 | 12 E Bozeman, MT | MESONET STATION MTBZH BOZEMAN PASS (MT DOT). |
| Mar 28, 1:30 PM MDT | NON-TSTM WND GST 50 | 15 Wnw Wolf Creek, MT | MESONET STATION MTROG ROGERS PASS (MT DOT). |
| Mar 28, 1:37 PM MDT | NON-TSTM WND GST 69 | 3 Sw Cut Bank, MT | ASOS STATION KCTB CUT BANK AIRPORT. |
| Mar 28, 1:45 PM MDT | NON-TSTM WND GST 55 | 12 Sw Fairfield, MT | |
| Mar 28, 2:09 PM MDT | NON-TSTM WND GST 76 | 2 Se Browning, MT | MESONET STATION MTBWG BROWNING (MT DOT). |
| Mar 28, 2:15 PM MDT | NON-TSTM WND GST 62 | 18 E Fort Benton, MT | |
| Mar 28, 2:30 PM MDT | NON-TSTM WND GST 63 | 10 Ne Vaughn, MT | |
| Mar 28, 2:54 PM MDT | NON-TSTM WND GST 52 | 8 W Townsend, MT | MESONET STATION EKHM8 ELKHORN RAWS - 8 W TOWNSEND. |
| Mar 28, 2:57 PM MDT | NON-TSTM WND GST 56 | Kevin, MT | MESONET STATION DW0975 KEVIN. |
| Mar 28, 3:00 PM MDT | NON-TSTM WND GST 62 | 4 Nnw Choteau, MT | COCONUT GROVE. |
| Mar 28, 3:15 PM MDT | NON-TSTM WND GST 55 | 6 Nw Ledger, MT | MESONET STATION MTM05 5.8 NW LEDGER (MT-MESO). |
| Mar 28, 3:15 PM MDT | NON-TSTM WND GST 55 | 7 Sw Toston, MT | MESONET STATION MTM55 6.7 SW TOSTON (MT-MESO). |
| Mar 28, 3:15 PM MDT | NON-TSTM WND GST 70 | 2 Nw Pendroy, MT | MESONET STATION MTPND PENDROY (MT DOT). |
| Mar 28, 3:22 PM MDT | NON-TSTM WND GST 68 | 2 Nw Pendroy, MT | MESONET STATION MTPND PENDROY (MT DOT). |
| Mar 28, 3:30 PM MDT | NON-TSTM WND GST 63 | 5 Ese Pendroy, MT | MESONET STATION RICMT 4.9 E PENDROY (MCSCN). |
| Mar 28, 3:39 PM MDT | NON-TSTM WND GST 62 | 7 S Bynum, MT | LIGHTNING T. |
| Mar 28, 3:48 PM MDT | NON-TSTM WND GST 63 | 4 Sse Bynum, MT | MILLERS COLONY. |
| Mar 28, 3:54 PM MDT | NON-TSTM WND GST 66 | 8 W Townsend, MT | MESONET STATION EKHM8 ELKHORN RAWS - 8 W TOWNSEND. FIRST 58+ MPH WIND GUST AND PEAK WIND GUST SO FAR AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 3:55 PM MDT | NON-TSTM WND GST 58 | 1 Nne Choteau, MT | MESONET STATION KCII CHOTEAU (GTFWFO). FIRST 58+ MPH WIND GUST AND PEAK WIND GUST SO FAR AT THIS LOCATION FOR THIS WIND EVENT. |
| Mar 28, 4:00 PM MDT | NON-TSTM WND GST 50 | 6 Wsw Havre, MT | MESONET STATION MTM06 6.4 SW HAVRE (MT-MESO). |
| Mar 28, 4:00 PM MDT | NON-TSTM WND GST 57 | 11 Nne Bozeman, MT | MESONET STATION BBCST 11.1 NE BOZEMAN (AVALANCHE). |
| Mar 28, 4:00 PM MDT | NON-TSTM WND GST 67 | 11 Nne Bozeman, MT | MESONET STATION BBMID 11.2 NE BOZEMAN (AVALANCHE). |
| Mar 28, 4:04 PM MDT | NON-TSTM WND GST 59 | 9 Wsw Kevin, MT | LMI. |
| Mar 28, 4:14 PM MDT | NON-TSTM WND GST 70 | 11 Ssw Whitlash, MT | FENGER. |
| Mar 28, 4:15 PM MDT | NON-TSTM WND GST 54 | 2 N Amsterdam, MT | MESONET STATION MTM71 2.0 N AMSTERDAM (MT-MESO). |
| Mar 28, 4:15 PM MDT | NON-TSTM WND GST 64 | 12 Wnw Cut Bank, MT | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 12 WNW CUT BANK. MESONET STATION BFAM 12.1 W CUT BANK (AGRIMET). |
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, 8.6 hours before the alert went out and 30 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
- 1590 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
244 WWUS85 KTFX 270837 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 237 AM MDT Sat Mar 27 2021 MTZ113-115-117-281200- /O.UPG.KTFX.FW.A.0001.210328T1800Z-210329T0600Z/ /O.NEW.KTFX.FW.W.0001.210328T1500Z-210329T0200Z/ Hill and Blaine Counties-Chouteau and Fergus Counties- Central and Eastern Lewis and Clark National Forest Areas- 237 AM MDT Sat Mar 27 2021 ...RED FLAG WARNING IN EFFECT FROM 9 AM TO 8 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 113, 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 from 9 AM to 8 PM MDT Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Hill and Blaine Counties, Chouteau and Fergus Counties and Central and Eastern Lewis and Clark National Forest Areas. * WINDS...Southwest 25 to 35 mph, with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Any fires in the grass and rangelands will be 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. && Moldan $$ MTZ112-114-281200- /O.NEW.KTFX.FW.W.0001.210328T1500Z-210329T0200Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 237 AM MDT Sat Mar 27 2021 ...RED FLAG WARNING IN EFFECT FROM 9 AM TO 8 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112 AND 114... The National Weather Service in Great Falls has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 9 AM to 8 PM MDT Sunday. * AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty and Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front. * WINDS...Southwest 40 to 50 mph, with gusts up to 80 mph. * RELATIVE HUMIDITY...As low as 19 percent. * IMPACTS...Any fires in the grass and rangelands will be difficult to contain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && Moldan $$ http://www.weather.gov/greatfalls
2 follow-up statements
100 WWUS85 KTFX 280858 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 258 AM MDT Sun Mar 28 2021 MTZ118-290200- /O.EXA.KTFX.FW.W.0001.210328T1500Z-210329T0200Z/ Helena and Townsend Ranger Districts of the Helena National Forest- 258 AM MDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 118... The National Weather Service in Great Falls has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 9 AM this morning to 8 PM MDT this evening. * AFFECTED AREA...Helena and Townsend Ranger Districts of the Helena National Forest. * WINDS...Southwest 30 to 40 mph, with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Any fires in the grass and rangelands will be 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. && $$ MTZ112-114-290200- /O.CON.KTFX.FW.W.0001.210328T1500Z-210329T0200Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 258 AM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112 AND 114... * AFFECTED AREA...Eastern Glacier/Toole/Central/Eastern Pondera/Liberty and Lewis and Clark National Forest Rocky Mountain District-Rocky Mountain Front. * WINDS...Southwest 40 to 50 mph, with gusts up to 70 mph. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Any fires in the grass and rangelands will be difficult to contain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ MTZ113-115-117-290200- /O.CON.KTFX.FW.W.0001.210328T1500Z-210329T0200Z/ Hill and Blaine Counties-Chouteau and Fergus Counties- Central and Eastern Lewis and Clark National Forest Areas- 258 AM MDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 113, 115, AND 117... * AFFECTED AREA...Hill and Blaine Counties, Chouteau and Fergus Counties and Central and Eastern Lewis and Clark National Forest Areas. * WINDS...Southwest 35 to 45 mph, with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...Any fires in the grass and rangelands will be 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. && $$ http://www.weather.gov/greatfalls
079 WWUS85 KTFX 290157 RFWTFX URGENT - FIRE WEATHER MESSAGE National Weather Service Great Falls MT 757 PM MDT Sun Mar 28 2021 MTZ112-114-290300- /O.EXP.KTFX.FW.W.0001.000000T0000Z-210329T0200Z/ Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 757 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112 AND 114... While the threat for extreme fire weather has diminished, an elevated to critical fire weather threat remains until a cold front passes through the region overnight. $$ MTZ113-115-117-118-290300- /O.EXP.KTFX.FW.W.0001.000000T0000Z-210329T0200Z/ Hill and Blaine Counties-Chouteau and Fergus Counties- Central and Eastern Lewis and Clark National Forest Areas- Helena and Townsend Ranger Districts of the Helena National Forest- 757 PM MDT Sun Mar 28 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 113, 115, 117, AND 118... While the threat for extreme fire weather has diminished, an elevated to critical fire weather threat remains until a cold front passes through the region overnight. $$ 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 |
|---|---|---|---|---|
| Mar 27, 2:29 AM MDT | High Wind Warning | TFX | 64 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.