Alert archive / Utah / Red Flag Warnings in 2016
Red Flag Warning 18, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Aug 31, 2016, 2:29 AM MDT for 18 counties in Utah. It took effect at Sep 1, 2016, 6:00 AM MDT. It was in force for 22 hr. 6 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
- Aug 31, 2016, 2:29 AM MDT (08:29 UTC)
- In effect from
- Sep 1, 2016, 6:00 AM MDT
- Expired
- Sep 2, 2016, 3:52 AM MDT
- In force
- 22 hr
- Issued by
- NWS Salt Lake City, UT
Counties Box Elder County, UT, Cache County, UT, Carbon County, UT, Davis County, UT, Duchesne County, UT, Emery County, UT, Juab County, UT, Millard County, UT, Morgan County, UT, Rich County, UT, Salt Lake County, UT, Sanpete County, UT, Sevier County, UT, Summit County, UT, Tooele County, UT, Utah County, UT, Wasatch County, UT, Weber County, UT
The radar
The Salt Lake City radar (KMTX), 116 km from the middle of the area, began a volume at 08:27 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 |
|---|---|---|---|
| Sep 1, 3:25 PM MDT | TSTM WND GST 62 | 15 Nne Knolls, UT | DIDDLE KNOLL MESONET SITE |
| Sep 1, 3:30 PM MDT | TSTM WND GST 60 | 5 S Lakeside, UT | UTTR THERMAL TREAMENT UNIT |
| Sep 1, 3:40 PM MDT | TSTM WND GST 60 | 26 Ene Callao, UT | WEST GRANITE MESONET SITE |
| Sep 1, 4:15 PM MDT | NON-TSTM WND GST 70 | 20 E Callao, UT | FISH SPRINGS MESONET SITE |
| Sep 1, 4:35 PM MDT | TSTM WND GST 61 | 27 Wsw Dugway, UT | |
| Sep 1, 5:20 PM MDT | TSTM WND GST 60 | 16 Nw Dugway, UT | UPPER CEDAR MTN MESONET SITE |
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 00:00Z, 8.5 hours before the alert went out and 48 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
- 23 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 4285 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
463 WWUS85 KSLC 310829 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 229 AM MDT WED AUG 31 2016 UTZ478-492-312200- /O.UPG.KSLC.FW.A.0010.160901T1200Z-160903T0400Z/ /O.NEW.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ SALT LAKE DESERT-CENTRAL UTAH WEST DESERT- 229 AM MDT WED AUG 31 2016 ...RED FLAG WARNING IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478 AND 492... 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 6 AM THURSDAY TO 10 PM MDT FRIDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT AND FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS WILL INCREASE THROUGH THE DAY THURSDAY BECOMING 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH BY THURSDAY AFTERNOON. WINDS WILL DIMINISH THURSDAY NIGHT THEN INCREASE FURTHER FRIDAY WITH SUSTAINED SOUTHWEST WINDS 20 T0 25 WITH GUSTS AROUND 40 MPH DURING THE AFTERNOON HOURS. * RELATIVE HUMIDITY...9 TO 14 PERCENT EACH AFTERNOON. * THUNDERSTORMS...ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE POSSIBLE DURING THE DAY THURSDAY. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE ON THURSDAY. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH...AND ISOLATED DRY THUNDERSTORMS MAY CREATE NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ479-480-312200- /O.UPG.KSLC.FW.A.0010.160901T1200Z-160903T0400Z/ /O.NEW.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ WASATCH MOUNTAINS-UINTA MOUNTAINS- 229 AM MDT WED AUG 31 2016 ...RED FLAG WARNING IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD FOR FIRE WEATHER ZONES 479 AND 480... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD...WHICH IS IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 479 WASATCH MOUNTAINS AND FIRE WEATHER ZONE 480 UINTA MOUNTAINS. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE. * RELATIVE HUMIDITY...13 TO 15 PERCENT BELOW 7000 FEET. ABOVE 15 PERCENT ELEVATIONS ABOVE 7000 FEET. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AND FAST STORM MOTIONS WILL DEVELOP ON THURSDAY...THEN TREND MORE WIDELY SCATTERED IN NATURE ON FRIDAY. * IMPACTS...THE COMBINATION OF THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AFTER A PROLONGED DRY PERIOD AND GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG MICROBURST WINDS...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ ROGOWSKI FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
4 follow-up statements
407 WWUS85 KSLC 311809 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1209 PM MDT WED AUG 31 2016 UTZ481-483-488-011100- /O.EXA.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ WESTERN ASHLEY NATIONAL FOREST-SOUTHERN ASHLEY NATIONAL FOREST- MANTI NATIONAL FOREST- 1209 PM MDT WED AUG 31 2016 ...RED FLAG WARNING IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD FOR FIRE WEATHER ZONES 481...483 AND 488... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD...WHICH IS IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY. * AFFECTED AREA...FIRE WEATHER ZONE 481 WESTERN ASHLEY NATIONAL FOREST...FIRE WEATHER ZONE 483 SOUTHERN ASHLEY NATIONAL FOREST AND FIRE WEATHER ZONE 488 MANTI NATIONAL FOREST. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE. * RELATIVE HUMIDITY...13 TO 15 PERCENT BELOW 7000 FEET. ABOVE 15 PERCENT ELEVATIONS ABOVE 7000 FEET. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AND FAST STORM MOTIONS WILL DEVELOP ON THURSDAY...THEN TREND MORE WIDELY SCATTERED IN NATURE ON FRIDAY. * IMPACTS...THE COMBINATION OF THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AFTER A PROLONGED DRY PERIOD AND GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ478-492-011100- /O.CON.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ SALT LAKE DESERT-CENTRAL UTAH WEST DESERT- 1209 PM MDT WED AUG 31 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478 AND 492... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT AND FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS WILL INCREASE THROUGH THE DAY THURSDAY BECOMING 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH BY THURSDAY AFTERNOON. WINDS WILL DIMINISH THURSDAY NIGHT THEN INCREASE FURTHER FRIDAY WITH SUSTAINED SOUTHWEST WINDS 20 T0 25 WITH GUSTS AROUND 40 MPH DURING THE AFTERNOON HOURS. * RELATIVE HUMIDITY...9 TO 14 PERCENT EACH AFTERNOON. * THUNDERSTORMS...ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE POSSIBLE DURING THE DAY THURSDAY. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE ON THURSDAY. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH...AND ISOLATED DRY THUNDERSTORMS MAY CREATE NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ479-480-011100- /O.CON.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ WASATCH MOUNTAINS-UINTA MOUNTAINS- 1209 PM MDT WED AUG 31 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 10 PM MDT FRIDAY FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD FOR FIRE WEATHER ZONES 479 AND 480... * AFFECTED AREA...FIRE WEATHER ZONE 479 WASATCH MOUNTAINS AND FIRE WEATHER ZONE 480 UINTA MOUNTAINS. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE. * RELATIVE HUMIDITY...13 TO 15 PERCENT BELOW 7000 FEET. ABOVE 15 PERCENT ELEVATIONS ABOVE 7000 FEET. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AND FAST STORM MOTIONS WILL DEVELOP ON THURSDAY... THEN TREND MORE WIDELY SCATTERED IN NATURE ON FRIDAY. * IMPACTS...THE COMBINATION OF THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AFTER A PROLONGED DRY PERIOD AND GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG MICROBURST WINDS...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
978 WWUS85 KSLC 010922 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 322 AM MDT THU SEP 1 2016 UTZ478-492-011730- /O.EXT.KSLC.FW.W.0018.160901T1200Z-160904T0400Z/ SALT LAKE DESERT-CENTRAL UTAH WEST DESERT- 322 AM MDT THU SEP 1 2016 ...RED FLAG WARNING NOW IN EFFECT UNTIL 10 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478 AND 492... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT AND FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS WILL INCREASE THROUGH THE DAY TODAY BECOMING 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH BY THIS AFTERNOON. WINDS WILL DIMINISH TONIGHT AND FRIDAY NIGHT THEN INCREASE FURTHER FRIDAY AND SATURDAY WITH SUSTAINED SOUTHWEST WINDS 20 T0 25 WITH GUSTS AROUND 40 MPH DURING THE AFTERNOON HOURS. WINDS WILL SHIFT TO NORTHWEST ACROSS NORTHERN PORTIONS OF ZONE 478 SATURDAY AFTERNOON AND DECREASE. * RELATIVE HUMIDITY...9 TO 14 PERCENT EACH AFTERNOON. * THUNDERSTORMS...ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE POSSIBLE TODAY. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE ON TODAY. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH...AND ISOLATED DRY THUNDERSTORMS MAY CREATE NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ479>481-483-488-011730- /O.CON.KSLC.FW.W.0018.160901T1200Z-160903T0400Z/ WASATCH MOUNTAINS-UINTA MOUNTAINS-WESTERN ASHLEY NATIONAL FOREST- SOUTHERN ASHLEY NATIONAL FOREST-MANTI NATIONAL FOREST- 322 AM MDT THU SEP 1 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT FRIDAY FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD FOR FIRE WEATHER ZONES 479...480... 481...483 AND 488... * AFFECTED AREA...FIRE WEATHER ZONE 479 WASATCH MOUNTAINS...FIRE WEATHER ZONE 480 UINTA MOUNTAINS...FIRE WEATHER ZONE 481 WESTERN ASHLEY NATIONAL FOREST...FIRE WEATHER ZONE 483 SOUTHERN ASHLEY NATIONAL FOREST AND FIRE WEATHER ZONE 488 MANTI NATIONAL FOREST. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE. * RELATIVE HUMIDITY...13 TO 15 PERCENT BELOW 8000 FEET. ABOVE 15 PERCENT ELEVATIONS ABOVE 8000 FEET. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AND FAST STORM MOTIONS WILL DEVELOP TODAY... THEN TREND MORE WIDELY SCATTERED IN NATURE ON FRIDAY. * IMPACTS...THE COMBINATION OF THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AFTER A PROLONGED DRY PERIOD AND GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
432 WWUS85 KSLC 012041 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 241 PM MDT THU SEP 1 2016 UTZ478-492-021100- /O.CON.KSLC.FW.W.0018.000000T0000Z-160904T0400Z/ SALT LAKE DESERT-CENTRAL UTAH WEST DESERT- 241 PM MDT THU SEP 1 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478 AND 492... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT AND FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL CONTINUE THROUGH THE EARLY EVENING BEFORE DIMINISHING.WINDS WILL INCREASE FURTHER FRIDAY AND SATURDAY WITH SUSTAINED SOUTHWEST WINDS 20 T0 25 WITH GUSTS AROUND 40 MPH DURING THE AFTERNOON HOURS BUT WILL TEMPORARILY WEAKEN FRIDAY NIGHT. WINDS WILL SHIFT TO NORTHWEST ACROSS NORTHERN PORTIONS OF ZONE 478 SATURDAY AFTERNOON AND DECREASE. * RELATIVE HUMIDITY...9 TO 14 PERCENT EACH AFTERNOON. * THUNDERSTORMS...ISOLATED TO SCATTERED DRY THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE THROUGH THE EVENING. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH...AND ISOLATED DRY THUNDERSTORMS MAY CREATE NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ479>481-483-488-021100- /O.CON.KSLC.FW.W.0018.000000T0000Z-160903T0400Z/ WASATCH MOUNTAINS-UINTA MOUNTAINS-WESTERN ASHLEY NATIONAL FOREST- SOUTHERN ASHLEY NATIONAL FOREST-MANTI NATIONAL FOREST- 241 PM MDT THU SEP 1 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT FRIDAY FOR THUNDERSTORMS AFTER A PROLONGED DRY PERIOD FOR FIRE WEATHER ZONES 479...480...481...483 AND 488... * AFFECTED AREA...FIRE WEATHER ZONE 479 WASATCH MOUNTAINS...FIRE WEATHER ZONE 480 UINTA MOUNTAINS...FIRE WEATHER ZONE 481 WESTERN ASHLEY NATIONAL FOREST...FIRE WEATHER ZONE 483 SOUTHERN ASHLEY NATIONAL FOREST AND FIRE WEATHER ZONE 488 MANTI NATIONAL FOREST. * OUTFLOW WINDS...GREATER THAN 40 MPH POSSIBLE. * RELATIVE HUMIDITY...13 TO 15 PERCENT BELOW 8000 FEET. ABOVE 15 PERCENT ELEVATIONS ABOVE 8000 FEET. * THUNDERSTORMS...SCATTERED THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AND FAST STORM MOTIONS WILL CONTINUE TODAY BEFORE DECREASING IN COVERAGE OVERNIGHT. STORMS WILL DEVELOP AGAIN TOMORROW...BUT WILL BE MORE WIDELY SCATTERED IN NATURE. * IMPACTS...THE COMBINATION OF THUNDERSTORMS WITH INSIGNIFICANT RAINFALL AFTER A PROLONGED DRY PERIOD AND GUSTY OUTFLOW WINDS WILL CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. GUSTY OUTFLOW WINDS MAY CREATE TO THE POTENTIAL FOR NEW FIRE STARTS AND RAPID FIRE GROWTH. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
384 WWUS85 KSLC 020952 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 352 AM MDT FRI SEP 2 2016 UTZ478-492-021800- /O.CAN.KSLC.FW.W.0018.000000T0000Z-160904T0400Z/ /O.NEW.KSLC.FW.W.0019.160903T1800Z-160904T0400Z/ SALT LAKE DESERT-CENTRAL UTAH WEST DESERT- 352 AM MDT FRI SEP 2 2016 ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 478 AND 492... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TO 10 PM MDT SATURDAY. * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT AND FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL DEVELOP MIDDAY SATURDAY AND CONTINUE THROUGH MID EVENING BEFORE DIMINISHING. WINDS WILL SHIFT TO NORTHWEST ACROSS NORTHERN PORTIONS OF ZONE 478 LATE SATURDAY AFTERNOON AND DECREASE. * RELATIVE HUMIDITY...9 TO 14 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ UTZ479>481-483-488-021100- /O.CAN.KSLC.FW.W.0018.000000T0000Z-160903T0400Z/ WASATCH MOUNTAINS-UINTA MOUNTAINS-WESTERN ASHLEY NATIONAL FOREST- SOUTHERN ASHLEY NATIONAL FOREST-MANTI NATIONAL FOREST- 352 AM MDT FRI SEP 2 2016 ...RED FLAG WARNING IS CANCELLED FOR DRY LIGHTNING FOR FIRE WEATHER ZONES 479...480...481...483 AND 488... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE RED FLAG WARNING. COVERAGE OF THUNDERSTORMS ACROSS THESE ZONES WILL BE LESS THAN YESTERDAY AND THE AIR MASS IS MORE MOIST SO THE THREAT OF DRY LIGHTNING HAS DECREASED SIGNIFICANTLY. THEREFORE THE RFW HAS BEEN CANCELLED. $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
Nearby
Red Flag Warnings in Utah, 2016Every red flag warning in 2016
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.