Alert archive / Utah / Red Flag Warnings in 2021
Red Flag Warning 22, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Jul 7, 2021, 3:43 AM MDT for 18 counties in Utah. It took effect at Jul 8, 2021, 12:00 PM MDT. It was in force for 57 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
- Jul 7, 2021, 3:43 AM MDT (09:43 UTC)
- In effect from
- Jul 8, 2021, 12:00 PM MDT
- Expired
- Jul 10, 2021, 9:00 PM MDT
- In force
- 57 hr
- Issued by
- NWS Salt Lake City, UT
Counties Beaver County, UT, Cache County, UT, Carbon County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Millard County, UT, Morgan County, UT, Piute County, UT, Rich County, UT, Salt Lake County, UT, Sanpete County, UT, Sevier County, UT, Summit County, UT, Utah County, UT, Wasatch County, UT, Wayne County, UT, Weber County, UT
The radar
The Salt Lake City radar (KMTX), 177 km from the middle of the area, began a volume at 09:41 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 00:00Z, 9.7 hours before the alert went out and 111 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
- 32 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 3621 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
623 WWUS85 KSLC 070943 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 343 AM MDT Wed Jul 7 2021 UTZ479-482-072300- /O.UPG.KSLC.FW.A.0018.210708T1800Z-210710T0400Z/ /O.NEW.KSLC.FW.W.0022.210708T1800Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 343 AM MDT Wed Jul 7 2021 ...RED FLAG WARNING IN EFFECT FROM NOON THURSDAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... 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 Thursday to 10 PM MDT Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusty to 35 mph Thursday afternoon and evening, then northwest 10 to 20 mph with gusts up to 35 mph Friday afternoon and evening. * RELATIVE HUMIDITY...10 to 15 percent each afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
8 follow-up statements
860 WWUS85 KSLC 072006 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 206 PM MDT Wed Jul 7 2021 UTZ479-482-081200- /O.CON.KSLC.FW.W.0022.210708T1800Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 206 PM MDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON THURSDAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusty to 35 mph Thursday afternoon and evening, then northwest 10 to 20 mph with gusts up to 35 mph Friday afternoon and evening. * RELATIVE HUMIDITY...10 to 15 percent each afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
476 WWUS85 KSLC 080906 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 306 AM MDT Thu Jul 8 2021 UTZ483-484-489-082300- /O.EXB.KSLC.FW.W.0022.210709T1800Z-210710T0400Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 306 AM MDT Thu Jul 8 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT FRIDAY 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 from noon to 10 PM MDT Friday. * 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...Northwest 10 to 20 mph with gusts up to 35 mph Friday afternoon and evening. * RELATIVE HUMIDITY...8 to 12 percent Friday afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ479-482-082300- /O.CON.KSLC.FW.W.0022.210708T1800Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 306 AM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts to 30 mph this afternoon and evening, then northwest 10 to 20 mph with gusts up to 35 mph Friday afternoon and evening. * RELATIVE HUMIDITY...10 to 15 percent this afternoon, then 9 to 12 percent Friday afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
572 WWUS85 KSLC 082046 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 246 PM MDT Thu Jul 8 2021 UTZ493-091200- /O.EXB.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Central Utah Mountains- 246 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... The National Weather Service in Salt Lake City has issued a Red Flag Warning below 7500 feet for wind and low relative humidity, which is in effect from noon Friday to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...North 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ488-091200- /O.EXB.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Manti National Forest- 246 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... The National Weather Service in Salt Lake City has issued a Red Flag Warning below 8000 feet for wind and low relative humidity, which is in effect from noon Friday to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 7 percent. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ483-484-489-091200- /O.EXT.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 246 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING NOW IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... * 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...North 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ479-482-091200- /O.CON.KSLC.FW.W.0022.000000T0000Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 246 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
814 WWUS85 KSLC 082108 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 308 PM MDT Thu Jul 8 2021 UTZ479-482-091200- /O.CON.KSLC.FW.W.0022.000000T0000Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 308 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 10 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ483-484-489-091200- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 308 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...North 10 to 20 mph with gusts up to 30 mph. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 5 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ493-091200- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Central Utah Mountains- 308 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...North 10 to 20 mph with gusts up to 30 mph. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 8 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ488-091200- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Manti National Forest- 308 PM MDT Thu Jul 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 7 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
919 WWUS85 KSLC 090931 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 331 AM MDT Fri Jul 9 2021 UTZ479-482-092300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 331 AM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph this afternoon. * RELATIVE HUMIDITY...As low as 10 percent this afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ483-484-489-092300- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 331 AM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 5 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ493-092300- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Central Utah Mountains- 331 AM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 8 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ488-092300- /O.CON.KSLC.FW.W.0022.210709T1800Z-210711T0300Z/ Manti National Forest- 331 AM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 7 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
641 WWUS85 KSLC 092040 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 240 PM MDT Fri Jul 9 2021 UTZ483-484-489-101200- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 240 PM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... * 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...Northwest 10 to 20 mph with gusts up to 35 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 5 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ479-482-100400- /O.CON.KSLC.FW.W.0022.000000T0000Z-210710T0400Z/ Wasatch Mountains-Western Uintah Basin- 240 PM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 479 AND 482... * AFFECTED AREA...Fire Weather Zone 479 Wasatch Mountains and Fire Weather Zone 482 Western Uintah Basin. * WINDS...West 10 to 20 mph with gusts up to 35 mph this afternoon. * RELATIVE HUMIDITY...As low as 10 percent this afternoon. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ493-101200- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Central Utah Mountains- 240 PM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 8 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ488-101200- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Manti National Forest- 240 PM MDT Fri Jul 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph this afternoon, then north 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 7 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
631 WWUS85 KSLC 100920 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 320 AM MDT Sat Jul 10 2021 UTZ483-484-489-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 320 AM MDT Sat Jul 10 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, AND 489... * 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...North 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 5 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ UTZ493-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Central Utah Mountains- 320 AM MDT Sat Jul 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...North 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 8 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ488-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Manti National Forest- 320 AM MDT Sat Jul 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...North 10 to 20 with gusts to 30 mph Saturday afternoon. Winds will decrease during the overnight and early morning hours. * RELATIVE HUMIDITY...As low as 7 percent. Poor overnight recoveries are expected. * IMPACTS...Fire weather conditions may become critical across the watch areas. New fire starts could spread rapidly. 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
636 WWUS85 KSLC 102051 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 251 PM MDT Sat Jul 10 2021 UTZ483-484-489-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Southern Ashley National Forest-Tavaputs Plateau-San Rafael Swell- 251 PM MDT Sat Jul 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 483, 484, AND 489... * AFFECTED AREA...Fire Weather Zone 483 Southern Ashley National Forest, Fire Weather Zone 484 Tavaputs Plateau and Fire Weather Zone 489 San Rafael Swell. * WINDS...Northwest 10 to 20 with gusts to 30 mph into this evening prior to decreasing. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ493-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Central Utah Mountains- 251 PM MDT Sat Jul 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 493 BELOW 7500 FEET... * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains. * WINDS...Northwest 10 to 20 with gusts to 30 mph into this evening prior to decreasing. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts could spread rapidly. 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. && $$ UTZ488-110300- /O.CON.KSLC.FW.W.0022.000000T0000Z-210711T0300Z/ Manti National Forest- 251 PM MDT Sat Jul 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 488 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest. * WINDS...Northwest 10 to 20 with gusts to 30 mph into this evening prior to decreasing. * RELATIVE HUMIDITY...As low as 7 percent. Poor overnight recoveries are expected. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts could spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 1:34 PM MDT | Heat Advisory | SLC | Morgan, Summit, Wasatch, Weber | 56 hr |
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.