Alert archive / Utah / Red Flag Warnings in 2021
Red Flag Warning 6, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Apr 22, 2021, 2:40 PM MDT for 10 counties in Utah. It took effect at Apr 23, 2021, 12:00 PM MDT. It was in force for 3 days. 28 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 22, 2021, 2:40 PM MDT (20:40 UTC)
- In effect from
- Apr 23, 2021, 12:00 PM MDT
- Expired
- Apr 26, 2021, 9:00 PM MDT
- In force
- 3 days
- Issued by
- NWS Salt Lake City, UT
Counties Beaver County, UT, Carbon County, UT, Duchesne County, UT, Emery County, UT, Garfield County, UT, Iron County, UT, Kane County, UT, San Juan County, UT, Washington County, UT, Wayne County, UT
The radar
The Cedar City radar (KICX), 141 km from the middle of the area, began a volume at 20:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 25, 7:10 AM MDT | NON-TSTM WND DMG | Hamilton Ft, UT | UDOT REPORTED A SEMI-TRAILER WAS BLOWN OVER ON I-15 SOUTH OF CEDAR CITY. THE CEDAR CITY ASOS WAS REPORTING A 43 MPH GUST AROUND THAT TIME. |
| Apr 25, 10:05 AM MDT | NON-TSTM WND GST 58 | Cedar City, UT | CEDAR CITY MUNICIPAL AIRPORT - 5581 FT |
| Apr 25, 10:53 AM MDT | NON-TSTM WND GST 58 | 2 Nw Cedar City, UT | ASOS STATION KCDC CEDAR CITY. |
| Apr 25, 11:30 AM MDT | NON-TSTM WND GST 56 | Cedar City, UT | BRIAN HEAD 2S - 10472 FT |
| Apr 25, 11:50 AM MDT | NON-TSTM WND GST 55 | Beaver, UT | PORTABLE TRAFFIC 2 - 3155 FT |
| Apr 25, 12:57 PM MDT | NON-TSTM WND GST 47 | Paria, UT | TELEGRAPH FLAT - 5460 FT |
| Apr 25, 1:00 PM MDT | NON-TSTM WND GST 46 | Manderfield, UT | PORTABLE TRAFFIC 1 - 3350 FT |
| Apr 25, 1:03 PM MDT | NON-TSTM WND GST 48 | Enterprise, UT | ENTERPRISE - 5340 FT |
| Apr 25, 1:20 PM MDT | NON-TSTM WND GST 52 | Abraham, UT | I-15 AT WILDCAT RIDGE - 6200 FT |
| Apr 25, 1:20 PM MDT | NON-TSTM WND GST 52 | Cedar City, UT | I-15 AT MP 57 CEDAR CITY - 5959 FT |
| Apr 25, 1:30 PM MDT | NON-TSTM WND GST 48 | Hamiltons Ft, UT | I-15 AT MILEPOST 29 - 3921 FT |
| Apr 25, 1:30 PM MDT | NON-TSTM WND GST 53 | Abraham, UT | I-15 AT PINE CREEK HILL - 6508 FT |
| Apr 25, 1:40 PM MDT | NON-TSTM WND GST 47 | Beaver, UT | I-15 AT BEAVER RIDGE - 6440 FT |
| Apr 25, 1:40 PM MDT | NON-TSTM WND GST 57 | Hamiltons Ft, UT | I-15 AT HAMILTONS FORT - 5745 FT |
| Apr 25, 2:30 PM MDT | NON-TSTM WND GST 53 | Greenville, UT | BEAVER MUNICIPAL AIRPORT - 5860 FT |
| Apr 25, 2:46 PM MDT | NON-TSTM WND GST 48 | Lund, UT | JENSEN SPRING - 5744 FT |
| Apr 25, 2:50 PM MDT | NON-TSTM WND GST 46 | Beaver, UT | I-15 AT BEAVER - 5941 FT |
| Apr 25, 2:50 PM MDT | NON-TSTM WND GST 57 | Cedar City, UT | I-15 AT MP 62.5 NORTH CEDAR CITY - 5760 FT |
| Apr 25, 2:52 PM MDT | NON-TSTM WND GST 58 | 1 N Milford, UT | ASOS STATION KMLF MILFORD. |
| Apr 25, 3:25 PM MDT | NON-TSTM WND GST 59 | 21 Wsw Milford, UT | MESONET STATION BSTU1 BRIMSTONE RESERVOIR. |
| Apr 25, 3:25 PM MDT | NON-TSTM WND GST 59 | Milford, UT | BRIMSTONE RESERVOIR - 5620 FT |
| Apr 25, 3:28 PM MDT | NON-TSTM WND GST 45 | Bridgeland, UT | FIVE MILE - 7480 FT |
| Apr 25, 3:35 PM MDT | NON-TSTM WND GST 60 | Milford, UT | MILFORD MUNICIPAL AIRPORT - 5034 FT |
| Apr 25, 3:50 PM MDT | NON-TSTM WND GST 49 | Kanarraville, UT | I-15 AT BLACK RIDGE - 5160 FT |
| Apr 25, 3:52 PM MDT | NON-TSTM WND GST 46 | Ivins, UT | BADGER SPRING - 3990 FT |
| Apr 25, 3:52 PM MDT | NON-TSTM WND GST 60 | 1 N Milford, UT | ASOS STATION KMLF MILFORD. |
| Apr 25, 3:58 PM MDT | NON-TSTM WND GST 61 | Burntfork, UT | CHEPETA - 12120 FT |
| Apr 26, 6:00 AM MDT | NON-TSTM WND GST 45 | 9 Nnw La Sal, UT | MESONET STATION LSL 9.4 NW LA SAL (AVALANCHE). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 8.7 hours before the alert went out and 271 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
- 1431 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
503 WWUS85 KSLC 222040 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 240 PM MDT Thu Apr 22 2021 UTZ489-230600- /O.NEW.KSLC.FW.W.0006.210423T1800Z-210424T0300Z/ /O.NEW.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ San Rafael Swell- 240 PM MDT Thu Apr 22 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... ...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 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 9 PM MDT Friday. A Fire Weather Watch has also been issued. This Fire Weather Watch for wind and low relative humidity is in effect from Saturday afternoon through Sunday evening. * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent. Expect poor overnight recoveries Saturday night. * 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. A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ UTZ482-495-497-230600- /O.NEW.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 240 PM MDT Thu Apr 22 2021 ...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... The National Weather Service in Salt Lake City has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Saturday afternoon through Sunday evening. * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect poor overnight recoveries Saturday night. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
12 follow-up statements
253 WWUS85 KSLC 230327 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 927 PM MDT Thu Apr 22 2021 UTZ489-231200- /O.CON.KSLC.FW.W.0006.210423T1800Z-210424T0300Z/ /O.CON.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ San Rafael Swell- 927 PM MDT Thu Apr 22 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent. Expect poor overnight recoveries Saturday night. * 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. A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ UTZ482-495-497-231200- /O.CON.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 927 PM MDT Thu Apr 22 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect poor overnight recoveries Saturday night. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
703 WWUS85 KSLC 230945 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 345 AM MDT Fri Apr 23 2021 UTZ489-232230- /O.CAN.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ /O.EXT.KSLC.FW.W.0006.210423T1800Z-210426T0500Z/ San Rafael Swell- 345 AM MDT Fri Apr 23 2021 ...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 11 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... ...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... The National Weather Service in Salt Lake City has cancelled the Fire Weather Watch. * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...This afternoon and evening, northwest 10 to 20 mph with gusts to 30 mph. Saturday through Sunday, southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with relatively poor overnight recoveries. * 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. && $$ UTZ482-495-497-232230- /O.CON.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 345 AM MDT Fri Apr 23 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 20 to 35 mph with gusts up to 50 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect relatively poor overnight recoveries Saturday night. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
152 WWUS85 KSLC 231446 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 846 AM MDT Fri Apr 23 2021 UTZ489-240015- /O.CON.KSLC.FW.W.0006.210423T1800Z-210426T0500Z/ San Rafael Swell- 846 AM MDT Fri Apr 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...This afternoon and evening, northwest 10 to 20 mph with gusts to 30 mph. Saturday through Sunday, southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with relatively poor overnight recoveries. * 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. && $$ UTZ482-495-497-240015- /O.CON.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 846 AM MDT Fri Apr 23 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 20 to 35 mph with gusts up to 50 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect relatively poor overnight recoveries Saturday night. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that there is a potential for critical fire weather conditions. Continue to monitor for the latest forecasts and for possible Red Flag Warnings. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
393 WWUS85 KSLC 232051 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 251 PM MDT Fri Apr 23 2021 UTZ482-495-497-240600- /O.UPG.KSLC.FW.A.0004.210424T1800Z-210426T0300Z/ /O.EXB.KSLC.FW.W.0006.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 251 PM MDT Fri Apr 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... 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 Saturday to 9 PM MDT Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 20 to 35 mph with gusts up to 50 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect relatively poor overnight recoveries Saturday night. * 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. && $$ UTZ498-240600- /O.EXB.KSLC.FW.W.0006.210424T1800Z-210426T0300Z/ Grand Staircase- 251 PM MDT Fri Apr 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON SATURDAY TO 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 498... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon Saturday to 9 PM MDT Sunday. * AFFECTED AREA...Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 7 percent. Expect relatively poor overnight recoveries Saturday night. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ489-240600- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0500Z/ San Rafael Swell- 251 PM MDT Fri Apr 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...This afternoon and evening, northwest 10 to 20 mph with gusts to 30 mph. Saturday through Sunday, southwest 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with relatively poor overnight recoveries. * 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
973 WWUS85 KSLC 240947 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 347 AM MDT Sat Apr 24 2021 UTZ489-242200- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0500Z/ San Rafael Swell- 347 AM MDT Sat Apr 24 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...Southwest 15 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with relatively poor overnight recoveries. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-495-497-498-242200- /O.CON.KSLC.FW.W.0006.210424T1800Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- Grand Staircase- 347 AM MDT Sat Apr 24 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, 497, AND 498... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert, Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 25 to 35 mph with gusts up to 55 mph. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect relatively poor overnight recoveries Saturday night. * 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
350 WWUS85 KSLC 242058 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 258 PM MDT Sat Apr 24 2021 UTZ489-250600- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0500Z/ San Rafael Swell- 258 PM MDT Sat Apr 24 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell. * WINDS...Southwest 15 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with relatively poor overnight recoveries. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-495-497-498-250600- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- Grand Staircase- 258 PM MDT Sat Apr 24 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, 497, AND 498... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert, Fire Weather Zone 497 Mojave Desert and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 25 to 35 mph with gusts up to 55 mph except 10 to 20 with gusts to 30 mph in the western Uintah Basin. The strongest winds are expected Sunday afternoon and evening. * RELATIVE HUMIDITY...As low as 10 percent. Expect relatively poor overnight recoveries 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
344 WWUS85 KSLC 251014 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 414 AM MDT Sun Apr 25 2021 UTZ489-498-252200- /O.EXT.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 414 AM MDT Sun Apr 25 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 15 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 9 percent during the daytime hours with poor overnight recoveries. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-495-497-252200- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Western Uintah Basin-Color Country West Desert-Mojave Desert- 414 AM MDT Sun Apr 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482, 495, AND 497... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin, Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 25 to 35 mph with gusts up to 55 mph except 10 to 20 with gusts to 30 mph in the western Uintah Basin. * 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
901 WWUS85 KSLC 252205 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 405 PM MDT Sun Apr 25 2021 UTZ495-497-260300- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Color Country West Desert-Mojave Desert- 405 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 495 AND 497... * AFFECTED AREA...Fire Weather Zone 495 Color Country West Desert and Fire Weather Zone 497 Mojave Desert. * WINDS...Southwest 30 to 40 mph with gusts up to 60 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ489-498-260615- /O.CON.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 405 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent, with poor overnight recoveries. * 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. && $$ UTZ482-260300- /O.CON.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Western Uintah Basin- 405 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 482... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin. * WINDS...Southwest 20 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
595 WWUS85 KSLC 260253 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 853 PM MDT Sun Apr 25 2021 UTZ495-497-260400- /O.EXP.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Color Country West Desert-Mojave Desert- 853 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 495 AND 497... Critical fire weather conditions are no longer expected. $$ UTZ482-260400- /O.EXP.KSLC.FW.W.0006.000000T0000Z-210426T0300Z/ Western Uintah Basin- 853 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 482... Critical fire weather conditions are no longer expected. $$ UTZ489-498-261200- /O.CON.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 853 PM MDT Sun Apr 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent, with poor overnight recoveries. * 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
284 WWUS85 KSLC 260848 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 248 AM MDT Mon Apr 26 2021 UTZ489-498-262200- /O.CON.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 248 AM MDT Mon Apr 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Any fires that develop could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
370 WWUS85 KSLC 262116 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 316 PM MDT Mon Apr 26 2021 UTZ489-498-270300- /O.CON.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 316 PM MDT Mon Apr 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... * AFFECTED AREA...Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 498 Grand Staircase. * WINDS...Southwest 20 to 30 mph with gusts up to 45 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
900 WWUS85 KSLC 270301 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 901 PM MDT Mon Apr 26 2021 UTZ489-498-270415- /O.EXP.KSLC.FW.W.0006.000000T0000Z-210427T0300Z/ San Rafael Swell-Grand Staircase- 901 PM MDT Mon Apr 26 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 489 AND 498... Humidity is recovering across the area this evening and winds are decreasing, thus the Red Flag Warning has been allowed to expire. $$ 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 |
|---|---|---|---|---|
| Apr 22, 2:40 PM MDT | Fire Weather Watch | SLC | Beaver, Carbon, Duchesne, Emery, Iron, Washington | 24 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.