Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 13, NWS Glasgow, MT
NWS Glasgow, MT issued this red flag warning at Jun 6, 2021, 3:01 AM MDT for 12 counties in Montana. It took effect at Jun 6, 2021, 12:00 PM MDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 6, 2021, 3:01 AM MDT (09:01 UTC)
- In effect from
- Jun 6, 2021, 12:00 PM MDT
- Expired
- Jun 6, 2021, 8:11 PM MDT
- In force
- 8 hr
- Issued by
- NWS Glasgow, MT
Counties Daniels County, MT, Dawson County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT
The radar
The Glasgow radar (KGGW), 77 km from the middle of the area, began a volume at 09:04 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
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 9.0 hours before the alert went out and 76 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
- 3337 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
087 WWUS85 KGGW 060901 RFWGGW URGENT - FIRE WEATHER MESSAGE National Weather Service Glasgow MT 301 AM MDT Sun Jun 6 2021 MTZ120-122-134>137-070000- /O.NEW.KGGW.FW.W.0013.210606T1800Z-210607T0000Z/ Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties- Dawson/McCone/Prairie/Richland/Wibaux Counties- Northern Valley and Northern Phillips Counties-The Little Rockies- The Lower Missouri River Breaks including the Charles M Russell National Wildlife Refuge- Southern Petroleum and Southern Garfield Counties- 301 AM MDT Sun Jun 6 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 120, 122, 134, 135, 136, AND 137... The National Weather Service in Glasgow has issued a Red Flag Warning for low relative humidity and gusty winds, which is in effect from noon today to 6 PM MDT this evening. * AFFECTED AREA...Fire Weather Zones 120, 122, 134, 135, 136 and 137. * TIMING...Noon through 6 pm this evening. * WINDS...West 15 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Highs in the upper 60s to the mid 70s. * IMPACTS...New fire starts will rapidly spread east. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ http://www.weather.gov/glasgow
2 follow-up statements
860 WWUS85 KGGW 062345 RFWGGW URGENT - FIRE WEATHER MESSAGE National Weather Service Glasgow MT 545 PM MDT Sun Jun 6 2021 MTZ122-134>137-070045- /O.CAN.KGGW.FW.W.0013.000000T0000Z-210607T0000Z/ Dawson/McCone/Prairie/Richland/Wibaux Counties- Northern Valley and Northern Phillips Counties-The Little Rockies- The Lower Missouri River Breaks including the Charles M Russell National Wildlife Refuge- Southern Petroleum and Southern Garfield Counties- 545 PM MDT Sun Jun 6 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 122, 134, 135, 136, AND 137... The National Weather Service in Glasgow has cancelled the Red Flag Warning. Winds have begun to subside across the region allowing the Red Flag Warning to expire. $$ MTZ120-070300- /O.EXT.KGGW.FW.W.0013.000000T0000Z-210607T0300Z/ Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties- 545 PM MDT Sun Jun 6 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 120... * AFFECTED AREA...Fire Weather Zone 120. * TIMING...Noon through 9 pm this evening. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 19 percent. * IMPACTS...New fire starts will rapidly spread eastward. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning. && $$ http://www.weather.gov/glasgow
697 WWUS85 KGGW 070211 RFWGGW URGENT - FIRE WEATHER MESSAGE National Weather Service Glasgow MT 811 PM MDT Sun Jun 6 2021 MTZ120-070315- /O.CAN.KGGW.FW.W.0013.000000T0000Z-210607T0300Z/ Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties- 811 PM MDT Sun Jun 6 2021 ...RED FLAG WARNING IS CANCELLED FOR LOW RELATIVE HUMIDITY AND GUSTY WINDS IN FIRE WEATHER ZONE 120... The National Weather Service in Glasgow has cancelled the Red Flag Warning. Winds have begun to subside across the region allowing the Red Flag Warning to finally expire. $$ http://www.weather.gov/glasgow
The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 7:28 PM MDT | Special Weather Statement | GGW | Dawson, Richland, Wibaux | 77 min |
| Jun 5, 8:35 PM MDT | Special Weather Statement | GGW | Wibaux | 55 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.