Alert archive / Utah / Red Flag Warnings in 2021
Red Flag Warning 2, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Apr 7, 2021, 2:38 PM MDT for 6 counties in Utah. It took effect at Apr 8, 2021, 12:00 PM MDT. It was in force for 3 days. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 7, 2021, 2:38 PM MDT (20:38 UTC)
- In effect from
- Apr 8, 2021, 12:00 PM MDT
- Expired
- Apr 11, 2021, 10:00 PM MDT
- In force
- 3 days
- Issued by
- NWS Salt Lake City, UT
Counties Carbon County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Wasatch County, UT, Wayne County, UT
The radar
The Grand Junction radar (KGJX), 230 km from the middle of the area, began a volume at 20:39 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
Salt Lake City I, UT (KSLC), launched 12:00Z, 8.6 hours before the alert went out and 192 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
- 1814 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
586 WWUS85 KSLC 072038 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 238 PM MDT Wed Apr 7 2021 UTZ489-494-080600- /O.UPG.KSLC.FW.A.0002.210408T1800Z-210409T0600Z/ /O.NEW.KSLC.FW.W.0002.210408T1800Z-210409T0300Z/ San Rafael Swell-Henry Mountains- 238 PM MDT Wed Apr 7 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 494... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 9 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482>484-080600- /O.NEW.KSLC.FW.W.0002.210408T1800Z-210409T0300Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau- 238 PM MDT Wed Apr 7 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, AND 484... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon to 9 PM MDT Thursday. * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...Northwest to west 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
12 follow-up statements
214 WWUS85 KSLC 081029 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 429 AM MDT Thu Apr 8 2021 UTZ482>484-489-494-090300- /O.CON.KSLC.FW.W.0002.210408T1800Z-210409T0300Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell-Henry Mountains- 429 AM MDT Thu Apr 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, 489, AND 494... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest to west 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
735 WWUS85 KSLC 082113 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 313 PM MDT Thu Apr 8 2021 UTZ482>484-489-494-090600- /O.EXT.KSLC.FW.W.0002.000000T0000Z-210410T0300Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell-Henry Mountains- 313 PM MDT Thu Apr 8 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, 489, AND 494... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. Winds will gradually decrease late tonight and increase again late Friday morning. The strongest winds will be in areas prone to downsloping in northwesterly flow. * RELATIVE HUMIDITY...As low as 8 percent. Recoveries will be relatively poor tonight. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
332 WWUS85 KSLC 090344 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 944 PM MDT Thu Apr 8 2021 UTZ482>484-489-494-091300- /O.CON.KSLC.FW.W.0002.000000T0000Z-210410T0300Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell-Henry Mountains- 944 PM MDT Thu Apr 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, 489, AND 494... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest 15 to 30 mph with gusts to 40 mph. Winds will gradually decrease late tonight and increase again late Friday morning. The strongest winds will be in areas prone to downsloping in northwesterly flow. * RELATIVE HUMIDITY...As low as 10 percent. Recoveries will be relatively poor tonight. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
734 WWUS85 KSLC 091047 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 447 AM MDT Fri Apr 9 2021 UTZ482>484-489-494-092300- /O.CON.KSLC.FW.W.0002.000000T0000Z-210410T0300Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell-Henry Mountains- 447 AM MDT Fri Apr 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, 489, AND 494... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest 15 to 25 mph with gusts to 30 mph. The strongest winds will be in areas prone to downsloping in northwesterly flow. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
193 WWUS85 KSLC 092037 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 237 PM MDT Fri Apr 9 2021 UTZ482-100600- /O.EXT.KSLC.FW.W.0002.000000T0000Z-210411T0600Z/ Western Uintah Basin- 237 PM MDT Fri Apr 9 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 482... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin. * WINDS...Northwest to west 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ483-484-489-494-100300- /O.CON.KSLC.FW.W.0002.000000T0000Z-210410T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- Henry Mountains- 237 PM MDT Fri Apr 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, 489, AND 494... * AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau, Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 494 Henry Mountains. * WINDS...Northwest 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
640 WWUS85 KSLC 100248 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 848 PM MDT Fri Apr 9 2021 UTZ483-484-489-494-100400- /O.EXP.KSLC.FW.W.0002.000000T0000Z-210410T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- Henry Mountains- 848 PM MDT Fri Apr 9 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, 489, AND 494... Winds have decreased and humidities have risen above critical levels across east-central Utah this evening. $$ UTZ482-101230- /O.CON.KSLC.FW.W.0002.000000T0000Z-210411T0600Z/ Western Uintah Basin- 848 PM MDT Fri Apr 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT SATURDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 482... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin. * WINDS...Northwest to west 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
437 WWUS85 KSLC 100927 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 327 AM MDT Sat Apr 10 2021 UTZ483-484-489-102300- /O.EXA.KSLC.FW.W.0002.000000T0000Z-210411T0600Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 327 AM MDT Sat Apr 10 2021 ...RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect until midnight MDT tonight. * AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-102300- /O.CON.KSLC.FW.W.0002.000000T0000Z-210411T0600Z/ Western Uintah Basin- 327 AM MDT Sat Apr 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 482... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
486 WWUS85 KSLC 102046 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 246 PM MDT Sat Apr 10 2021 UTZ482>484-489-110500- /O.EXT.KSLC.FW.W.0002.000000T0000Z-210412T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell- 246 PM MDT Sat Apr 10 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
458 WWUS85 KSLC 110359 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 959 PM MDT Sat Apr 10 2021 UTZ482>484-489-111300- /O.CON.KSLC.FW.W.0002.000000T0000Z-210412T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell- 959 PM MDT Sat Apr 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
905 WWUS85 KSLC 110943 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 343 AM MDT Sun Apr 11 2021 UTZ482>484-489-112200- /O.CON.KSLC.FW.W.0002.000000T0000Z-210412T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell- 343 AM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Any fires that develop could 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 are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
954 WWUS85 KSLC 112040 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 240 PM MDT Sun Apr 11 2021 UTZ482>484-489-120400- /O.CON.KSLC.FW.W.0002.000000T0000Z-210412T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell- 240 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
559 WWUS85 KSLC 120400 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1000 PM MDT Sun Apr 11 2021 UTZ482>484-489-120500- /O.EXP.KSLC.FW.W.0002.000000T0000Z-210412T0400Z/ Western Uintah Basin-Southern Ashley National Forest- Tavaputs Plateau-San Rafael Swell- 1000 PM MDT Sun Apr 11 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 483, 484, AND 489... Hazardous fire weather conditions will decrease as relative humidities continue to trend upward and winds downward through the night. $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
Nearby
Red Flag Warnings in Utah, 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.