Alert archive / Minnesota / Red Flag Warnings in 2021
Red Flag Warning 6, NWS Duluth, MN
NWS Duluth, MN issued this red flag warning at Jun 4, 2021, 3:26 AM CDT for 7 counties in Minnesota. It took effect at Jun 4, 2021, 12:00 PM CDT. It was in force for 9 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 4, 2021, 3:26 AM CDT (08:26 UTC)
- In effect from
- Jun 4, 2021, 12:00 PM CDT
- Expired
- Jun 4, 2021, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Duluth, MN
Counties Cass County, MN, Cook County, MN, Crow Wing County, MN, Itasca County, MN, Koochiching County, MN, Lake County, MN, Saint Louis County, MN
The radar
The Duluth radar (KDLH), 85 km from the middle of the area, began a volume at 08:32 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
International Fa, MN (KINL), launched 00:00Z, 8.4 hours before the alert went out and 129 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2046 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
966 WWUS83 KDLH 040826 RFWDLH URGENT - FIRE WEATHER MESSAGE National Weather Service Duluth MN 326 AM CDT Fri Jun 4 2021 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... .Critical fire weather conditions are expected this afternoon and early evening across portions of northeast Minnesota. Temperatures well above normal are forecast, with highs from 90 to 96 degrees. Deep mixing is expected which will allow winds to become gusty in the afternoon. Gusts will likely 20 to 25 MPH with some occasionally higher. Dry air in the low levels is also likely to reduce relative humidities from 20 to 30 percent. The highest wind is expected over far northern Itasca, Koochiching, and far northern St. Louis Counties. MNZ010>012-018-019-025-026-033-034-041730- /O.UPG.KDLH.FW.A.0003.210604T1700Z-210605T0200Z/ /O.NEW.KDLH.FW.W.0006.210604T1700Z-210605T0200Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-North Cass-South Itasca-South Cass-Crow Wing- 326 AM CDT Fri Jun 4 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR PORTIONS OF NORTHEAST MINNESOTA... The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 9 PM CDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Minnesota, Koochiching, North St. Louis, Northern Cook and Lake, North Itasca, Central St. Louis, North Cass, South Itasca, South Cass and Crow Wing. * WINDS...Southwest 10 to 15 mph with gusts up to 25 mph. A few gusts around 30 mph are possible, especially toward Koochiching County. * RELATIVE HUMIDITY...20 to 28 percent. * TEMPERATURES...In the upper 80s to mid 90s. * IMPACTS...These conditions are supportive of rapid fire growth. 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. && $$ Melde
2 follow-up statements
551 WWUS83 KDLH 042020 RFWDLH URGENT - FIRE WEATHER MESSAGE National Weather Service Duluth MN 320 PM CDT Fri Jun 4 2021 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... .Critical fire weather conditions are expected this evening across portions of northeast Minnesota. Temperatures well above normal are forecast, with highs from 90 to 96 degrees. Winds for most areas are gusting in the 20 to 25 MPH range, but parts of Koochiching, Itasca and far northern St. Louis county have had wind gusts around 30 mph so far this afternoon. Dry air in the low levels has reduced relative humidities to between 18 and 25 percent. MNZ010>012-018-019-025-026-033-034-050200- /O.CON.KDLH.FW.W.0006.000000T0000Z-210605T0200Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-North Cass-South Itasca-South Cass-Crow Wing- 320 PM CDT Fri Jun 4 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR PORTIONS OF NORTHEAST MINNESOTA... * AFFECTED AREA...In Minnesota, Koochiching, North St. Louis, Northern Cook and Lake, North Itasca, Central St. Louis, North Cass, South Itasca, South Cass and Crow Wing. * WINDS...Southwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 18 percent. * MAXIMUM TEMPERATURES...90 to 96 degrees. * IMPACTS...These conditions are supportive of rapid fire growth. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
973 WWUS83 KDLH 050159 RFWDLH URGENT - FIRE WEATHER MESSAGE National Weather Service Duluth MN 859 PM CDT Fri Jun 4 2021 MNZ010>012-018-019-025-026-033-034-050300- /O.EXP.KDLH.FW.W.0006.000000T0000Z-210605T0200Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-North Cass-South Itasca-South Cass-Crow Wing- 859 PM CDT Fri Jun 4 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEAST MINNESOTA... Relative humidites have risen above 25 percent and wind speeds have decreased. The Red Flag Warning is expiring. $$
Nearby
Red Flag Warnings in Minnesota, 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.