Alert archive / Utah / Red Flag Warnings in 2012
Red Flag Warning 12, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at May 29, 2012, 2:34 PM MDT for Carbon County, Emery County, Utah. It took effect at May 30, 2012, 1:00 PM MDT. It was in force for 9 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
- May 29, 2012, 2:34 PM MDT (20:34 UTC)
- In effect from
- May 30, 2012, 1:00 PM MDT
- Expired
- May 30, 2012, 10:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Salt Lake City, UT
Counties Carbon County, UT, Emery County, UT
The radar
The Grand Junction radar (KGJX), 212 km from the middle of the area, began a volume at 20:39 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
Grand Junction, CO (KGJT), launched 12:00Z, 8.6 hours before the alert went out and 186 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
- 2983 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
054 WWUS85 KSLC 292034 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 234 PM MDT TUE MAY 29 2012 UTZ489-301100- /O.UPG.KSLC.FW.A.0006.120530T1500Z-120531T0300Z/ /O.NEW.KSLC.FW.W.0012.120530T1900Z-120531T0400Z/ SAN RAFAEL SWELL- 234 PM MDT TUE MAY 29 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 10 PM MDT WEDNESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489 BELOW 6500 FEET... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED FLAG WARNING BELOW 6500 FEET FOR WIND AND LOW RELATIVE HUMIDITY... WHICH IS IN EFFECT FROM 1 PM TO 10 PM MDT WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 489 SAN RAFAEL SWELL BELOW 6500 FEET. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS...AND LOW HUMIDITY WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
3 follow-up statements
379 WWUS85 KSLC 300900 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 300 AM MDT WED MAY 30 2012 UTZ489-302115- /O.CON.KSLC.FW.W.0012.120530T1900Z-120531T0400Z/ SAN RAFAEL SWELL- 300 AM MDT WED MAY 30 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489 BELOW 6500 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 489 SAN RAFAEL SWELL BELOW 6500 FEET. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS...AND LOW HUMIDITY WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
667 WWUS85 KSLC 302058 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 258 PM MDT WED MAY 30 2012 UTZ497-311100- /O.NEW.KSLC.FW.W.0013.120531T0600Z-120531T1800Z/ MOJAVE DESERT- 258 PM MDT WED MAY 30 2012 ...RED FLAG WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 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 MIDNIGHT TONIGHT TO NOON MDT THURSDAY. * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT. * WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...REMAINING NEAR OR BELOW 15 PERCENT OVERNIGHT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS...AND LOW HUMIDITY WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ UTZ489-310400- /O.CON.KSLC.FW.W.0012.000000T0000Z-120531T0400Z/ SAN RAFAEL SWELL- 258 PM MDT WED MAY 30 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489 BELOW 6500 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 489 SAN RAFAEL SWELL BELOW 6500 FEET. * WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS...AND LOW HUMIDITY WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
046 WWUS85 KSLC 310352 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 952 PM MDT WED MAY 30 2012 UTZ489-310500- /O.EXP.KSLC.FW.W.0012.000000T0000Z-120531T0400Z/ SAN RAFAEL SWELL- 952 PM MDT WED MAY 30 2012 ...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 489 BELOW 6500 FEET... WINDS ARE DIMINISHING WHILE HUMIDITY VALUES CREEP UP THIS EVENING. $$ UTZ497-311200- /O.CON.KSLC.FW.W.0013.120531T0600Z-120531T1800Z/ MOJAVE DESERT- 952 PM MDT WED MAY 30 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON MDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497... * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT OUTSIDE OF THE ST GEORGE AREA. * WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. THESE WINDS WILL BE STRONGEST ALONG THE INTERSTATE 15 CORRIDOR FROM THE TOWN OF WASHINGTON TO THE IRON COUNTY LINE...AND ACROSS WESTERN WASHINGTON COUNTY ALONG THE SOUTHWEST SLOPES OF THE BULL VALLEY AND BEAVER DAM MOUNTAINS. * RELATIVE HUMIDITY...REMAINING NEAR OR BELOW 15 PERCENT OVERNIGHT. * IMPACTS...THE COMBINATION OF DRY FUELS...GUSTY WINDS...AND LOW HUMIDITY WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ROGOWSKI FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
Nearby
Red Flag Warnings in Utah, 2012Every red flag warning in 2012
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.