Alert archive / Utah / Red Flag Warnings in 2016
Red Flag Warning 19, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at Sep 2, 2016, 3:52 AM MDT for 8 counties in Utah. It took effect at Sep 3, 2016, 12:00 PM MDT. It was in force for 34 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
- Sep 2, 2016, 3:52 AM MDT (09:52 UTC)
- In effect from
- Sep 3, 2016, 12:00 PM MDT
- Expired
- Sep 4, 2016, 10:00 PM MDT
- In force
- 34 hr
- Issued by
- NWS Salt Lake City, UT
Counties Box Elder County, UT, Davis County, UT, Juab County, UT, Millard County, UT, Salt Lake County, UT, Sanpete County, UT, Tooele County, UT, Utah County, UT
The radar
The Salt Lake City radar (KMTX), 114 km from the middle of the area, began a volume at 09:52 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, 9.9 hours before the alert went out and 75 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
- 34 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 3019 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
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)
5 follow-up statements
184 WWUS85 KSLC 022039 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 239 PM MDT FRI SEP 2 2016 UTZ492-031100- /O.EXT.KSLC.FW.W.0019.160903T1800Z-160905T0400Z/ CENTRAL UTAH WEST DESERT- 239 PM MDT FRI SEP 2 2016 ...RED FLAG WARNING NOW IN EFFECT FROM NOON SATURDAY TO 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 492... * AFFECTED AREA...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 SUNDAY EVENING EXCEPT FOR A PERIOD OF LIGHTER WINDS SATURDAY NIGHT. * 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. && $$ UTZ478-031100- /O.CON.KSLC.FW.W.0019.160903T1800Z-160904T0400Z/ SALT LAKE DESERT- 239 PM MDT FRI SEP 2 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM MDT SATURDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 478... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL DEVELOP MIDDAY SATURDAY AND CONTINUE THROUGH MID EVENING BEFORE DIMINISHING. WINDS WILL TURN NORTHWESTERLY AND WEAKEN ACROSS THE NORTHWESTERN PORTIONS OF ZONE 478 LATE SATURDAY AFTERNOON. * RELATIVE HUMIDITY...9 TO 14 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
704 WWUS85 KSLC 030923 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 323 AM MDT SAT SEP 3 2016 UTZ478-031730- /O.EXT.KSLC.FW.W.0019.160903T1800Z-160905T0400Z/ SALT LAKE DESERT- 323 AM MDT SAT SEP 3 2016 ...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 478... * AFFECTED AREA...MAINLY THE SOUTHERN HALF OF FIRE WEATHER ZONE 478 SALT LAKE DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL DEVELOP MIDDAY TODAY AND CONTINUE THROUGH MID EVENING BEFORE WEAKENING OVERNIGHT. WINDS WILL INCREASE AGAIN THROUGH MID AFTERNOON SUNDAY THEN ABRUPTLY SHIFT TO NORTHWESTERLY BEHIND A COLD FRONT SUNDAY AFTERNOON. * 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. && $$ UTZ492-031730- /O.CON.KSLC.FW.W.0019.160903T1800Z-160905T0400Z/ CENTRAL UTAH WEST DESERT- 323 AM MDT SAT SEP 3 2016 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 492... * AFFECTED AREA...FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL DEVELOP MIDDAY TODAY AND CONTINUE THROUGH SUNDAY EVENING EXCEPT FOR A PERIOD OF LIGHTER WINDS TONIGHT. * RELATIVE HUMIDITY...9 TO 14 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
269 WWUS85 KSLC 032047 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 247 PM MDT SAT SEP 3 2016 UTZ478-041100- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ SALT LAKE DESERT- 247 PM MDT SAT SEP 3 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 478... * AFFECTED AREA...MAINLY THE SOUTHERN HALF OF FIRE WEATHER ZONE 478 SALT LAKE DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL CONTINUE THROUGH MID EVENING BEFORE WEAKENING OVERNIGHT. WINDS WILL INCREASE AGAIN THROUGH MID AFTERNOON SUNDAY THEN ABRUPTLY SHIFT TO NORTHWESTERLY BEHIND A COLD FRONT SUNDAY AFTERNOON. * 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. && $$ UTZ492-041100- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ CENTRAL UTAH WEST DESERT- 247 PM MDT SAT SEP 3 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 492... * AFFECTED AREA...FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL CONTINUE THROUGH SUNDAY EVENING EXCEPT FOR A PERIOD OF LIGHTER WINDS TONIGHT. * RELATIVE HUMIDITY...9 TO 14 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
220 WWUS85 KSLC 040919 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 319 AM MDT SUN SEP 4 2016 UTZ478-041730- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ SALT LAKE DESERT- 319 AM MDT SUN SEP 4 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN PORTIONS OF FIRE WEATHER ZONE 478... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT... ESPECIALLY THE AREA AROUND WEST GOVERNMENT CREEK WILDFIRE. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL REDEVELOP TODAY AND CONTINUE THROUGH LATE AFTERNOON THEN ABRUPTLY SHIFT TO NORTHWESTERLY BEHIND A COLD FRONT. * RELATIVE HUMIDITY...12 TO 15 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. && $$ UTZ492-041730- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ CENTRAL UTAH WEST DESERT- 319 AM MDT SUN SEP 4 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 492... * AFFECTED AREA...FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 MPH WILL CONTINUE THROUGH THIS EVENING. * RELATIVE HUMIDITY..12 TO 15 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
483 WWUS85 KSLC 041947 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 147 PM MDT SUN SEP 4 2016 UTZ478-050400- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ SALT LAKE DESERT- 147 PM MDT SUN SEP 4 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHERN PORTIONS OF FIRE WEATHER ZONE 478... * AFFECTED AREA...FIRE WEATHER ZONE 478 SALT LAKE DESERT...ESPECIALLY THE AREA AROUND THE WEST GOVERNMENT CREEK WILDFIRE. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 30 MPH WILL CONTINUE THROUGH LATE AFTERNOON/EARLY EVENING BEFORE ABRUPTLY SHIFTING TO THE NORTHWEST BEHIND A COLD FRONT. * RELATIVE HUMIDITY...12 TO 15 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. && $$ UTZ492-050400- /O.CON.KSLC.FW.W.0019.000000T0000Z-160905T0400Z/ CENTRAL UTAH WEST DESERT- 147 PM MDT SUN SEP 4 2016 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 492... * AFFECTED AREA...FIRE WEATHER ZONE 492 CENTRAL UTAH WEST DESERT. * WINDS...SOUTHERLY SURFACE WINDS OF 15 TO 25 MPH WITH GUSTS IN EXCESS OF 35 MPH WILL CONTINUE THROUGH THIS EVENING. * RELATIVE HUMIDITY..12 TO 15 PERCENT. * IMPACTS...A COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE THE POTENTIAL FOR RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR WITH HIGH CONFIDENCE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:21 PM MDT | Special Weather Statement | SLC | Cache | 24 min |
| Sep 1, 6:26 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 25 min |
| Sep 2, 2:19 PM MDT | Special Weather Statement | SLC | Garfield | 41 min |
| Sep 2, 5:03 PM MDT | Special Weather Statement | SLC | Kane | 42 min |
| Sep 2, 5:18 PM MDT | Special Weather Statement | SLC | Kane | 42 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.