Alert archive / Utah / Red Flag Warnings in 2012
Red Flag Warning 5, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at May 13, 2012, 3:18 AM MDT for Washington County, Utah. It took effect at May 13, 2012, 8:18 AM MDT. It was in force for 20 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 13, 2012, 3:18 AM MDT (09:18 UTC)
- In effect from
- May 13, 2012, 8:18 AM MDT
- Expired
- May 14, 2012, 4:47 AM MDT
- In force
- 20 hr
- Issued by
- NWS Salt Lake City, UT
County Washington County, UT
The radar
The Cedar City radar (KICX), 66 km from the middle of the area, began a volume at 09:15 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
Las Vegas, NV (KVEF), launched 00:00Z, 9.3 hours before the alert went out and 207 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
- 6298 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
128 WWUS85 KSLC 130918 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 318 AM MDT SUN MAY 13 2012 UTZ497-131800- /O.UPG.KSLC.FW.A.0001.120513T2100Z-120514T1200Z/ /O.NEW.KSLC.FW.W.0005.120513T2100Z-120514T1200Z/ MOJAVE DESERT- 318 AM MDT SUN MAY 13 2012 ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED FLAG WARNING BELOW 4000 FEET FOR WIND AND LOW RELATIVE HUMIDITY... WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET. * WINDS...NORTH 10 TO 20 MPH WITH GUSTS OVER 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITIES AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS LATE SUNDAY AFTERNOON THROUGH SUNDAY NIGHT. 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 DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
3 follow-up statements
652 WWUS85 KSLC 131418 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 818 AM MDT SUN MAY 13 2012 UTZ497-132200- /O.EXT.KSLC.FW.W.0005.120513T1418Z-120514T1200Z/ MOJAVE DESERT- 818 AM MDT SUN MAY 13 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 6 AM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET. * WINDS...NORTH 10 TO 20 MPH WITH GUSTS OVER 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITIES AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS ACROSS THE EXTREME SOUTHWEST PORTION OF THE FIRE WEATHER ZONE THIS MORNING...THEN ACROSS THE ENTIRE FIRE WEATHER ZONE BELOW 4000 FEET LATE THIS AFTERNOON THROUGH TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
224 WWUS85 KSLC 132112 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 312 PM MDT SUN MAY 13 2012 UTZ497-141200- /O.CON.KSLC.FW.W.0005.000000T0000Z-120514T1200Z/ MOJAVE DESERT- 312 PM MDT SUN MAY 13 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET. * WINDS...NORTH 10 TO 20 MPH WITH GUSTS OVER 40 MPH. * RELATIVE HUMIDITY...BETWEEN 8 AND 12 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITIES AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS ACROSS THE FIRE WEATHER ZONE THIS EVENING...THEN ACROSS MAINLY THE DOWNSLOPE WIND AREAS IN THE EXTREME SOUTHWEST PORTION OF THE FIRE WEATHER ZONE LATE TONIGHT. 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 DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
426 WWUS85 KSLC 141047 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 447 AM MDT MON MAY 14 2012 UTZ497-141900- /O.CAN.KSLC.FW.W.0005.000000T0000Z-120514T1200Z/ /O.NEW.KSLC.FW.A.0002.120515T1800Z-120516T0400Z/ MOJAVE DESERT- 447 AM MDT MON MAY 14 2012 ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497... THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A FIRE WEATHER WATCH BELOW 4000 FEET FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING. THE RED FLAG WARNING HAS BEEN CANCELED. * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET. * WINDS...SOUTHEAST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 4 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITIES AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS ACROSS THE FIRE WEATHER ZONE THIS EVENING...THEN ACROSS MAINLY THE DOWNSLOPE WIND AREAS IN THE EXTREME SOUTHWEST PORTION OF THE FIRE WEATHER ZONE LATE TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. A FIRE WEATHER WATCH MEANS THAT THERE IS A POTENTIAL FOR CRITICAL FIRE WEATHER CONDITIONS. CONTINUE TO MONITOR FOR THE LATEST FORECASTS AND FOR POSSIBLE RED FLAG WARNINGS. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (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.