Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 7, NWS Billings, MT
NWS Billings, MT issued this red flag warning at Jun 30, 2021, 1:40 PM MDT for 7 counties in Montana. It took effect at Jul 1, 2021, 9:00 AM MDT. It was in force for 12 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 30, 2021, 1:40 PM MDT (19:40 UTC)
- In effect from
- Jul 1, 2021, 9:00 AM MDT
- Expired
- Jul 1, 2021, 9:05 PM MDT
- In force
- 12 hr
- Issued by
- NWS Billings, MT
Counties Big Horn County, MT, Carter County, MT, Custer County, MT, Fallon County, MT, Powder River County, MT, Rosebud County, MT, Treasure County, MT
The radar
The Billings radar (KBLX), 206 km from the middle of the area, began a volume at 19:40 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 12:00Z, 7.7 hours before the alert went out and 262 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
- 2392 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
728
WWUS85 KBYZ 301940
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
National Weather Service Billings MT
140 PM MDT Wed Jun 30 2021
MTZ130>133-011945-
/O.UPG.KBYZ.FW.A.0005.210701T1500Z-210702T0600Z/
/O.NEW.KBYZ.FW.W.0007.210701T1500Z-210702T0600Z/
Northern Rosebud/Northern Treasure Counties-
Northern Cheyenne Indian Reservation/Ashland Ranger District
Custer Natl Forest-Custer County-
Sioux Ranger District Custer National Forest-
140 PM MDT Wed Jun 30 2021
...RED FLAG WARNING IN EFFECT FROM 9 AM THURSDAY TO MIDNIGHT MDT
THURSDAY NIGHT...
The National Weather Service in Billings has issued a Red Flag
Warning...which is in effect from 9 AM Thursday to midnight MDT
Thursday night. The Fire Weather Watch is no longer in effect.
* IMPACTS: Low humidities, hot temperatures, and strong gusty
winds will create erratic fire behavior and new fire starts.
* AFFECTED AREA:
In Southeast MT Fire Zones...130...131...132.
In Southeast MT and Northwest SD Fire Zone...133.
* COUNTIES AFFECTED:
In Northwest SD...Harding.
In South Central MT...Big Horn.
In Southeast MT...Carter...Custer...Fallon...Powder River
Rosebud...Treasure.
* WIND: Southeast 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: As low as 11 percent.
* TEMPERATURES: 93 to 102 degrees.
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.
&&
$$
http://weather.gov/Billings3 follow-up statements
355
WWUS85 KBYZ 010815
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
National Weather Service Billings MT
215 AM MDT Thu Jul 1 2021
MTZ130>133-020600-
/O.CON.KBYZ.FW.W.0007.210701T1500Z-210702T0600Z/
Northern Rosebud/Northern Treasure Counties-
Northern Cheyenne Indian Reservation/Ashland Ranger District
Custer Natl Forest-Custer County-
Sioux Ranger District Custer National Forest-
215 AM MDT Thu Jul 1 2021
...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT MDT TONIGHT...
* IMPACTS: Low humidities, hot temperatures, and strong gusty winds
will create erratic fire behavior.
* AFFECTED AREA:
In Southeast MT Fire Zones...130...131...132.
In Southeast MT and Northwest SD Fire Zone...133.
* COUNTIES AFFECTED:
In Northwest SD...Harding.
In South Central MT...Big Horn.
In Southeast MT...Carter...Custer...Fallon...Powder River
Rosebud...Treasure.
* WIND: Southeast 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: As low as 12 percent.
* TEMPERATURES: 92 to 102.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions are
either occurring now, or will shortly. A combination of strong
winds, low relative humidity, and warm temperatures can contribute
to extreme fire behavior.
&&
$$
http://weather.gov/Billings524
WWUS85 KBYZ 012026
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
National Weather Service Billings MT
226 PM MDT Thu Jul 1 2021
MTZ130>133-020600-
/O.CON.KBYZ.FW.W.0007.000000T0000Z-210702T0600Z/
Northern Rosebud/Northern Treasure Counties-
Northern Cheyenne Indian Reservation/Ashland Ranger District
Custer Natl Forest-Custer County-
Sioux Ranger District Custer National Forest-
226 PM MDT Thu Jul 1 2021
...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...
* IMPACTS: Low humidities, hot temperatures, and strong gusty
winds will create erratic fire behavior and new fire starts.
* AFFECTED AREA:
In Southeast MT Fire Zones...130...131...132.
In Southeast MT and Northwest SD Fire Zone...133.
* COUNTIES AFFECTED:
In Northwest SD...Harding.
In South Central MT...Big Horn.
In Southeast MT...Carter...Custer...Fallon...Powder River
Rosebud...Treasure.
* WIND: Southeast 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: As low as 12 percent.
* TEMPERATURES: 92 to 102.
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.
&&
$$
http://weather.gov/Billings982 WWUS85 KBYZ 020305 RFWBYZ URGENT - FIRE WEATHER MESSAGE National Weather Service Billings MT 905 PM MDT Thu Jul 1 2021 MTZ130>133-020415- /O.CAN.KBYZ.FW.W.0007.000000T0000Z-210702T0600Z/ Northern Rosebud/Northern Treasure Counties- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest-Custer County- Sioux Ranger District Custer National Forest- 905 PM MDT Thu Jul 1 2021 ...RED FLAG WARNING IS CANCELLED... The National Weather Service in Billings has cancelled the Red Flag Warning. Humidities are climbing as temperatures cool this evening. Friday will be continued hot, with slightly higher humidity and a chance of afternoon and evening thunderstorms. $$ http://weather.gov/Billings
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 1:34 PM MDT | Excessive Heat Warning | BYZ | Custer, Rosebud, Treasure | 4 days |
| Jun 30, 1:34 PM MDT | Heat Advisory | BYZ | Big Horn, Carbon, Carter, Fallon, Golden Valley, Musselshell and 4 more | 4 days |
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.