Alert archive / Utah / Red Flag Warnings in 2012
Red Flag Warning 3, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this red flag warning at May 6, 2012, 8:16 AM MDT for Washington County, Utah. It took effect at May 6, 2012, 11:00 AM MDT. It was in force for 33 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 6, 2012, 8:16 AM MDT (14:16 UTC)
- In effect from
- May 6, 2012, 11:00 AM MDT
- Expired
- May 7, 2012, 8:00 PM MDT
- In force
- 33 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 14:20 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 12:00Z, 2.3 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
- 4758 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
715 WWUS85 KSLC 061416 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 816 AM MDT SUN MAY 6 2012 UTZ497-062230- /O.NEW.KSLC.FW.W.0003.120506T1700Z-120507T1700Z/ MOJAVE DESERT- 816 AM MDT SUN MAY 6 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 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 11 AM THIS MORNING TO 11 AM MDT MONDAY. WINDS WILL LIKELY DECREASE FOR SEVERAL HOURS THIS AFTERNOON BETWEEN 1400 AND 1900 BUT THEN RAMP UP TONIGHT INTO MONDAY MORNING. * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET...SPECIFICALLY THE SOUTHWEST SLOPES OF THE BEAVER DAM MOUNTAINS AND ALSO IN AND AT THE MOUTHS OF NORTH SOUTH ORIENTED CANYONS OF WASHINGTON COUNTY. * WINDS...NORTH NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH THROUGH 1400 THEN A HIATUS UNTIL ABOUT 1900. WINDS WILL THEN INCREASE TO 20 TO 30 MPH WITH GUSTS OVER 50 MPH OVERNIGHT AND EARLY MONDAY. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITY VALUES...AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS TODAY AND 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 CRITICALLY DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
4 follow-up statements
987 WWUS85 KSLC 062028 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 228 PM MDT SUN MAY 6 2012 UTZ497-070430- /O.CON.KSLC.FW.W.0003.000000T0000Z-120507T1700Z/ MOJAVE DESERT- 228 PM MDT SUN MAY 6 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 AM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET...SPECIFICALLY THE SOUTHWEST SLOPES OF THE BEAVER DAM MOUNTAINS AND ALSO IN AND AT THE MOUTHS OF NORTH SOUTH ORIENTED CANYONS OF WASHINGTON COUNTY. * WINDS...NORTH NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH THIS AFTERNOON BUT WILL INCREASE TO 20 TO 30 MPH WITH GUSTS OVER 50 MPH THIS EVENING THROUGH TONIGHT BEFORE GRADUALLY WEAKENING. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITY VALUES...AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS TODAY AND TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND CRITICALLY DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
129 WWUS85 KSLC 070214 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 814 PM MDT SUN MAY 6 2012 UTZ497-071200- /O.CON.KSLC.FW.W.0003.000000T0000Z-120507T1700Z/ MOJAVE DESERT- 814 PM MDT SUN MAY 6 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 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...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH EARLY THIS EVENING...WILL INCREASE TO 20 TO 30 MPH WITH GUSTS OVER 50 MPH THIS EVENING THROUGH TONIGHT BEFORE GRADUALLY WEAKENING. THESE GUSTS ARE MOST LIKELY FOR THE INTERSTATE 15 CORRIDOR FROM THE TOWN OF WASHINGTON TO THE IRON COUNTY LINE...AND THE SOUTHWEST SLOPES OF THE BEAVER DAM AND BULL VALLEY MOUNTAINS. * RELATIVE HUMIDITY...AS LOW AS 6 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITY VALUES...AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS OVERNIGHT AND INTO MONDAY MORNING. 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 CRITICALLY DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ROGOWSKI FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
314 WWUS85 KSLC 070958 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 358 AM MDT MON MAY 7 2012 UTZ497-071700- /O.CON.KSLC.FW.W.0003.000000T0000Z-120507T1700Z/ MOJAVE DESERT- 358 AM MDT MON MAY 7 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 AM MDT THIS MORNING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 497 BELOW 4000 FEET... * AFFECTED AREA...FIRE WEATHER ZONE 497 MOJAVE DESERT BELOW 4000 FEET. * WINDS...NORTHEAST 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITY VALUES...AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS THROUGH THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND CRITICALLY DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT... HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
905 WWUS85 KSLC 071654 RFWSLC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1054 AM MDT MON MAY 7 2012 UTZ497-080200- /O.EXT.KSLC.FW.W.0003.000000T0000Z-120508T0200Z/ MOJAVE DESERT- 1054 AM MDT MON MAY 7 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT THIS EVENING 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...NORTHWEAST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH THE STRONGEST GUSTS ARE EXPECTED TO FOCUS NEAR THE GAPS AND CANYON MOUTHS. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...THE COMBINATION OF DRY FUELS...LOW RELATIVE HUMIDITY VALUES...AND GUSTY NORTHERLY WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS THROUGH THIS MORNING. 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 CRITICALLY DRY FUELS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ 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 |
|---|---|---|---|---|
| May 6, 1:31 PM MDT | High Wind Warning | SLC | 15 hr | |
| May 6, 3:49 PM MDT | Hard Freeze Warning | SLC | 17 hr |
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.