Alert archive / Minnesota / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this red flag warning at Mar 28, 2021, 2:33 PM CDT for 14 counties in Minnesota. It took effect at Mar 29, 2021, 12:00 PM CDT. It was in force for 10 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
- Mar 28, 2021, 2:33 PM CDT (19:33 UTC)
- In effect from
- Mar 29, 2021, 12:00 PM CDT
- Expired
- Mar 29, 2021, 9:44 PM CDT
- In force
- 10 hr
- Issued by
- NWS Twin Cities, MN
Counties Chippewa County, MN, Douglas County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Meeker County, MN, Morrison County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 19:38 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
Minneapolis, MN (KMPX), launched 12:00Z, 7.6 hours before the alert went out and 140 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
- 1158 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
235 WWUS83 KMPX 281933 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 233 PM CDT Sun Mar 28 2021 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED MONDAY AFTERNOON AND EVENING ACROSS WESTERN AND PORTIONS OF CENTRAL MINNESOTA... .South winds will increase to 25 to 30 mph with gusts to 40 or 50 mph Monday afternoon, then shift to the west and diminish some Monday evening. Relative humidities will drop to between 20 and 25 percent across western Minnesota by afternoon. A dryline may precede the cold front by a couple hours in the late afternoon. During that time, RH values could drop further into the teens across far western Minnesota. Humidities will improve slowly Monday evening, but winds will remain gusty through the night. MNZ041>043-047>049-054>058-064-065-073-290345- /O.NEW.KMPX.FW.W.0001.210329T1700Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 233 PM CDT Sun Mar 28 2021 ...RED FLAG WARNING IN EFFECT FROM NOON MONDAY TO 1 AM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR WESTERN AND PORTIONS OF CENTRAL MINNESOTA... The National Weather Service in Twin Cities/Chanhassen has issued a Red Flag Warning, which is in effect from noon Monday to 1 AM CDT Tuesday. * AFFECTED AREA...West of a line from Little Falls to Litchfield and Redwood Falls. * WIND...South wind 25 to 30 mph with gusts of 45 to 50 mph, becoming west in the evening. * HUMIDITY...17 to 25 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Borghoff
5 follow-up statements
914 WWUS83 KMPX 290406 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1106 PM CDT Sun Mar 28 2021 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED MONDAY AFTERNOON AND EVENING ACROSS WESTERN AND PORTIONS OF CENTRAL MINNESOTA... .South winds will increase to 25 to 30 mph with gusts to 40 or 50 mph Monday afternoon, then shift to the west and diminish some Monday evening. Relative humidities will drop to between 20 and 25 percent across western Minnesota by the afternoon. An initial cold may precede the main cold front by a couple hours in the late afternoon. During that time, RH values could drop further into the teens across far western Minnesota. Humidities will improve slowly Monday evening, but winds will remain gusty through the night. MNZ041>043-047>049-054>058-064-065-073-291215- /O.CON.KMPX.FW.W.0001.210329T1700Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 1106 PM CDT Sun Mar 28 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON MONDAY TO 1 AM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR WESTERN AND PORTIONS OF CENTRAL MINNESOTA... * AFFECTED AREA...West of a line from Little Falls to Litchfield and Redwood Falls. * WIND...South wind 25 to 30 mph with gusts of 45 to 50 mph, becoming west in the evening. * HUMIDITY...17 to 25 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
263 WWUS83 KMPX 290953 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 453 AM CDT Mon Mar 29 2021 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED THIS AFTERNOON AND EVENING ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... .Critical fire weather conditions are expected this afternoon across portions of western and central Minnesota, as temperatures warm into the upper 70s and southerly winds gust as high as 45-50 mph this afternoon. The driest conditions are expected for a few hours this afternoon across western Minnesota, where RH values look to drop well into the teens while temperatures remain warm behind a dryline. Temperatures will begin to fall during the late afternoon and evening behind a cold front, but much drier air behind the front will result in critical relative humidity values into the evening hours. MNZ041>043-047>049-054>058-064-065-073-292200- /O.CON.KMPX.FW.W.0001.210329T1700Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 453 AM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 1 AM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... * AFFECTED AREA...West of a line from Little Falls to Litchfield and Redwood Falls. * WIND...South wind 25 to 30 mph with gusts of 45 to 50 mph, becoming west in the evening. * HUMIDITY...17 to 25 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$
514 WWUS83 KMPX 291703 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1203 PM CDT Mon Mar 29 2021 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED THIS AFTERNOON AND EVENING ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... .Critical fire weather conditions are expected this afternoon across portions of western and central Minnesota as temperatures warm into the upper 70s and southerly winds gust as high as 45 to 50 mph. The driest conditions are expected for a few hours this afternoon across western Minnesota, where RH values are likely to drop to around 15 percent. Temperatures will begin to fall during the evening behind a cold front, but even drier air behind the front will result in critical relative humidity values being maintained through the evening. MNZ041>043-047>049-054>058-064-065-073-300115- /O.CON.KMPX.FW.W.0001.000000T0000Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 1203 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 AM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... * AFFECTED AREA...West of a line from Little Falls to Litchfield and Redwood Falls. * WIND...South wind 25 to 30 mph with gusts of 45 to 50 mph, becoming west in the evening. * HUMIDITY...15 to 25 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Borghoff
056 WWUS83 KMPX 292004 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 304 PM CDT Mon Mar 29 2021 ...VERY DANGEROUS FIRE WEATHER CONDITIONS EXPECTED INTO THIS EVENING ACROSS WESTERN MINNESOTA... .Temperatures in the low to mid 80s with dew points in the low to mid 20s have resulted in humidities dropping into the 9 to 13 percent range. Combined with wind gusts of 40 to 50 mph, very dangerous fire weather conditions are occurring in areas such as Madison, Canby, Montevideo, Appleton, and Morris. These conditions will expand a little farther eastward late this afternoon, perhaps to Redwood Falls and Willmar. Otherwise, humidities of 20 to 25 percent are expected north into central Minnesota. Temperatures will begin to fall during the evening behind a cold front, but even drier air behind the front will result in critical relative humidity values being maintained through the evening. MNZ041>043-047>049-054>058-064-065-073-300415- /O.CON.KMPX.FW.W.0001.000000T0000Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 304 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 AM CDT TUESDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... * AFFECTED AREA...West of a line from Little Falls to Litchfield and Redwood Falls. * WIND...South wind 25 to 30 mph with gusts of 45 to 50 mph, becoming west in the evening. * HUMIDITY...8 to 25 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Borghoff
159 WWUS83 KMPX 300244 RFWMPX URGENT - FIRE WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 944 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING CANCELLED... .Relative humidities have risen above critical thresholds. Therefore, the Red Flag Warning is cancelled. MNZ041>043-047>049-054>058-064-065-073-300345- /O.CAN.KMPX.FW.W.0001.000000T0000Z-210330T0600Z/ Douglas-Todd-Morrison-Stevens-Pope-Stearns-Lac Qui Parle-Swift- Chippewa-Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood- 944 PM CDT Mon Mar 29 2021 ...RED FLAG WARNING IS CANCELLED FOR STRONG WINDS AND LOW RELATIVE HUMIDITY ACROSS PORTIONS OF WESTERN AND CENTRAL MINNESOTA... The National Weather Service in Twin Cities/Chanhassen has cancelled the Red Flag Warning. Relative humidities have risen above critical thresholds. Therefore, the Red Flag Warning is cancelled. $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 2:37 PM CDT | Wind Advisory | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 36 more | 30 hr |
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.