Alert archive / Utah / Red Flag Warnings in 2017
Red Flag Warning 7, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Jun 21, 2017, 3:28 AM MDT for 15 counties in Utah. It took effect at Jun 22, 2017, 12:00 PM MDT. 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
- Jun 21, 2017, 3:28 AM MDT (09:28 UTC)
- In effect from
- Jun 22, 2017, 12:00 PM MDT
- Expired
- Jun 22, 2017, 10:00 PM MDT
- In force
- 10 hr
- 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, Millard County, UT, Piute County, UT, San Juan County, UT, Sanpete County, UT, Sevier County, UT, Utah County, UT, Washington County, UT, Wayne County, UT
The radar
The Cedar City radar (KICX), 150 km from the middle of the area, began a volume at 09:28 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, 9.5 hours before the alert went out and 241 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
- 96 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 3901 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
568 WWUS85 KSLC 210928 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 328 AM MDT Wed Jun 21 2017 UTZ496-212200- /O.UPG.KSLC.FW.A.0003.170622T1800Z-170623T0400Z/ /O.NEW.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ /O.CON.KSLC.FW.W.0006.170621T1800Z-170622T0400Z/ Color Country Mountains- 328 AM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 496... ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 496... 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 both today and Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 496 Color Country Mountains. * WINDS...Southwest 10-15 mph with gusts to 25 mph today. Winds will likely increase out of the west 15-25 mph with gusts to 35 mph Thursday. * RELATIVE HUMIDITY...Near 10 percent both days. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ494-498-212200- /O.UPG.KSLC.FW.A.0003.170622T1800Z-170623T0400Z/ /O.NEW.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Henry Mountains-Grand Staircase- 328 AM MDT Wed Jun 21 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 494 AND 498... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity...which is in effect from noon to 10 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 494 Henry Mountains and Fire Weather Zone 498 Grand Staircase. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...6-8 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-484-212200- /O.UPG.KSLC.FW.A.0003.170622T1800Z-170623T0400Z/ /O.NEW.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Western Uintah Basin-Tavaputs Plateau- 328 AM MDT Wed Jun 21 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482 AND 484 BELOW 7000 FEET... 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 Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ488-489-493-212200- /O.UPG.KSLC.FW.A.0003.170622T1800Z-170623T0400Z/ /O.NEW.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Manti National Forest-San Rafael Swell-Central Utah Mountains- 328 AM MDT Wed Jun 21 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 488... 489 AND 493 BELOW 8000 FEET... The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity...which is in effect from noon to 10 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest... Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 493 Central Utah Mountains. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent mountains, 6-8 percent eastern valleys. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ495-212200- /O.CON.KSLC.FW.W.0006.170621T1800Z-170622T0400Z/ Color Country West Desert- 328 AM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 495... * AFFECTED AREA...Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 10-20 mph with gusts to 30 mph. * RELATIVE HUMIDITY...6 to 8 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
4 follow-up statements
034 WWUS85 KSLC 212030 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 230 PM MDT Wed Jun 21 2017 UTZ496-220430- /O.CON.KSLC.FW.W.0006.000000T0000Z-170622T0400Z/ /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Color Country Mountains- 230 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 496... ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 496... * AFFECTED AREA...Fire Weather Zone 496 Color Country Mountains. * WINDS...Southwest 10-15 mph with gusts to 25 mph today. Winds will likely increase out of the west 15-25 mph with gusts to 35 mph Thursday. * RELATIVE HUMIDITY...Near 10 percent both days. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ495-220400- /O.CON.KSLC.FW.W.0006.000000T0000Z-170622T0400Z/ Color Country West Desert- 230 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 495... * AFFECTED AREA...Fire Weather Zone 495 Color Country West Desert. * WINDS...Southwest 10-20 mph with gusts to 30 mph. * RELATIVE HUMIDITY...6 to 8 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ494-498-220430- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Henry Mountains-Grand Staircase- 230 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 494 AND 498... * AFFECTED AREA...Fire Weather Zone 494 Henry Mountains and Fire Weather Zone 498 Grand Staircase. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...6-8 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-484-220430- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Western Uintah Basin-Tavaputs Plateau- 230 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482 AND 484 BELOW 7000 FEET... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ488-489-493-220430- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Manti National Forest-San Rafael Swell-Central Utah Mountains- 230 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 488...489 AND 493 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest... Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 493 Central Utah Mountains. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent mountains, 6-8 percent eastern valleys. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
790 WWUS85 KSLC 220443 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 1043 PM MDT Wed Jun 21 2017 UTZ494-496-498-221300- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Henry Mountains-Color Country Mountains-Grand Staircase- 1043 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 494...496 AND 498... * AFFECTED AREA...Fire Weather Zone 494 Henry Mountains...Fire Weather Zone 496 Color Country Mountains and Fire Weather Zone 498 Grand Staircase. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...6-8 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ482-484-221300- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Western Uintah Basin-Tavaputs Plateau- 1043 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482 AND 484 BELOW 7000 FEET... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ488-489-493-221300- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Manti National Forest-San Rafael Swell-Central Utah Mountains- 1043 PM MDT Wed Jun 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 488...489 AND 493 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest... Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 493 Central Utah Mountains. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent mountains, 6-8 percent eastern valleys. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
455 WWUS85 KSLC 220815 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 215 AM MDT Thu Jun 22 2017 UTZ494-496-498-221615- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Henry Mountains-Color Country Mountains-Grand Staircase- 215 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 494...496 AND 498... * AFFECTED AREA...Fire Weather Zone 494 Henry Mountains...Fire Weather Zone 496 Color Country Mountains and Fire Weather Zone 498 Grand Staircase. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...6-12 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ482-484-221615- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Western Uintah Basin-Tavaputs Plateau- 215 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482 AND 484 BELOW 7000 FEET... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ488-489-493-221615- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Manti National Forest-San Rafael Swell-Central Utah Mountains- 215 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 488...489 AND 493 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest... Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 493 Central Utah Mountains. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent mountains, 6-8 percent eastern valleys. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity
552 WWUS85 KSLC 221507 RFWSLC URGENT - FIRE WEATHER MESSAGE National Weather Service Salt Lake City UT 907 AM MDT Thu Jun 22 2017 UTZ494-496-498-230400- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Henry Mountains-Color Country Mountains-Grand Staircase- 907 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 494...496 AND 498... * AFFECTED AREA...Fire Weather Zone 494 Henry Mountains...Fire Weather Zone 496 Color Country Mountains and Fire Weather Zone 498 Grand Staircase. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...6-12 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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. && $$ UTZ482-484-230400- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Western Uintah Basin-Tavaputs Plateau- 907 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 482 AND 484 BELOW 7000 FEET... * AFFECTED AREA...Fire Weather Zone 482 Western Uintah Basin and Fire Weather Zone 484 Tavaputs Plateau. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ UTZ488-489-493-230400- /O.CON.KSLC.FW.W.0007.170622T1800Z-170623T0400Z/ Manti National Forest-San Rafael Swell-Central Utah Mountains- 907 AM MDT Thu Jun 22 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 488...489 AND 493 BELOW 8000 FEET... * AFFECTED AREA...Fire Weather Zone 488 Manti National Forest... Fire Weather Zone 489 San Rafael Swell and Fire Weather Zone 493 Central Utah Mountains. * WINDS...West Winds 15-25 mph with gusts to 35 mph. * RELATIVE HUMIDITY...10-15 percent mountains, 6-8 percent eastern valleys. * IMPACTS...Gusty winds and low humidities will combine to cause critical fire weather conditions. 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 |
|---|---|---|---|---|
| Jun 20, 6:04 PM MDT | Special Weather Statement | SLC | Davis | 26 min |
| Jun 20, 6:14 PM MDT | Special Weather Statement | SLC | Rich | 46 min |
| Jun 20, 6:31 PM MDT | Special Weather Statement | SLC | Morgan, Weber | 44 min |
| Jun 20, 6:34 PM MDT | Special Weather Statement | SLC | Wasatch | 41 min |
| Jun 21, 3:52 PM MDT | Special Weather Statement | SLC | Salt Lake | 23 min |
Nearby
Red Flag Warnings in Utah, 2017Every red flag warning in 2017
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.