Alert archive / Arizona / Red Flag Warnings in 2011
Red Flag Warning 9, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at Jun 5, 2011, 3:17 PM MST for Mohave County, Arizona. It took effect at Jun 6, 2011, 9:00 AM MST. 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
- Jun 5, 2011, 3:17 PM MST (22:17 UTC)
- In effect from
- Jun 6, 2011, 9:00 AM MST
- Expired
- Jun 6, 2011, 6:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Las Vegas, NV
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 102 km from the middle of the area, began a volume at 22:15 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 12:00Z, 10.3 hours before the alert went out and 177 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
- 5080 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
138 WWUS85 KVEF 052217 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 317 PM PDT SUN JUN 5 2011 .AN UNSEASONABLY STRONG STORM OFF THE CENTRAL CALIFORNIA COAST IS FINALLY STARTING TO SHOW SIGNS OF MOVING EAST. THE LOW WILL INCREASE EASTWARD MOVEMENT AND CROSS NORTHERN INYO COUNTY AND THE CENTRAL NEVADA MOUNTAINS LATE TONIGHT AND MONDAY. STRONG SOUTH WINDS AND DRY CONDITIONS WILL PERSIST THROUGH THIS EVENING BEFORE THE WINDS DECREASE. POOR HUMIDITY RECOVERY TONIGHT AND ANOTHER BOUT OF STRONG SOUTHWEST WINDS AND LOW HUMIDITY VALUES CAN BE EXPECTED ACROSS NORTHWEST ARIZONA ON MONDAY. AZZ102-060630- /O.NEW.KVEF.FW.W.0009.110606T1600Z-110607T0100Z/ /O.CON.KVEF.FW.W.0008.000000T0000Z-110606T0300Z/ NORTHWEST DESERTS/NORTHWEST PLATEAU- 317 PM MST SUN JUN 5 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 102... ...RED FLAG WARNING IN EFFECT FROM 9 AM TO 6 PM MST MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 102... THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A RED FLAG WARNING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 9 AM TO 6 PM MST MONDAY. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING. * AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST DESERTS/NORTHWEST PLATEAU. * TIMING...STRONG SOUTH TO SOUTHWEST WINDS WILL CONTINUE INTO THE EVENING HOURS...THEN DECREASING AFTER SUNSET. SOUTHWEST WINDS WILL DEVELOP AGAIN MONDAY MORNING AND CONTINUE THROUGHOUT THE DAY...BEFORE DECREASING IN THE LATE AFTERNOON. * WIND...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS UP TO 40 MPH...10 TO 20 MPH TONIGHT...INCREASING BACK FROM THE SOUTHWEST AT 20 TO 25 MPH WITH GUST UP TO 40 MPH MONDAY. * HUMIDITY...MINIMUM VALUES BETWEEN 5 AND 13 PERCENT THIS EVENING AND AGAIN MONDAY. * IMPACTS...THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE CONDITIONS THAT ARE FAVORABLE FOR EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE GROWTH POTENTIAL. && $$ AZZ101-CAZ229-NVZ461>466-060300- /O.CON.KVEF.FW.W.0008.000000T0000Z-110606T0300Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH- SHEEP RANGE-SPRING MOUNTAINS- CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 317 PM PDT SUN JUN 5 2011 /317 PM MST SUN JUN 5 2011/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 101...461...462...463...464...465 AND 466... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS EVENING. * AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD NRA/COLORADO RIVER-AZ SIDE... IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN COUNTY/ELY DISPATCH...FIRE WEATHER ZONE 462 NYE COUNTY DESERTS/LAS VEGAS DISPATCH...FIRE WEATHER ZONE 463 SHEEP RANGE...FIRE WEATHER ZONE 464 SPRING MOUNTAINS...FIRE WEATHER ZONE 465 CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH...FIRE WEATHER ZONE 466 LAKE MEAD NRA/COLORADO RIVER- NV SIDE. * TIMING...STRONG SOUTH TO SOUTHEAST WINDS WILL CONTINUE INTO THE EVENING...BEFORE DECREASING AFTER SUNSET. NUMEROUS STATIONS ACROSS SOUTHERN NEVADA HAVE EXCEED RED FLAG CRITERIA THIS AFTERNOON. * WIND...SOUTH TO SOUTHEAST 20 TO 25 MPH WITH GUSTS UP TO 40 MPH. * HUMIDITY...MINIMUM VALUES BETWEEN 5 AND 13 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE CONDITIONS THAT ARE FAVORABLE FOR EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE GROWTH POTENTIAL. && $$ PIERCE
4 follow-up statements
208 WWUS85 KVEF 060259 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 759 PM PDT SUN JUN 5 2011 .AN UNSEASONABLY STRONG STORM OFF THE CENTRAL CALIFORNIA COAST IS FINALLY STARTING TO SHOW SIGNS OF MOVING EAST. THE LOW WILL INCREASE EASTWARD MOVEMENT AND CROSS NORTHERN INYO COUNTY AND THE CENTRAL NEVADA MOUNTAINS LATE TONIGHT AND MONDAY. POOR HUMIDITY RECOVERY TONIGHT AND ANOTHER BOUT OF STRONG SOUTHWEST WINDS AND LOW HUMIDITY VALUES CAN BE EXPECTED ACROSS NORTHWEST ARIZONA ON MONDAY. AZZ102-061300- /O.EXP.KVEF.FW.W.0008.000000T0000Z-110606T0300Z/ /O.CON.KVEF.FW.W.0009.110606T1600Z-110607T0100Z/ NORTHWEST DESERTS/NORTHWEST PLATEAU- 759 PM MST SUN JUN 5 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 6 PM MST MONDAY FOR ARIZONA FIRE WATERY ZONE 102 DUE TO GUSTY SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY... ...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR THE NORTHWEST PLATEAU AND NORTHWEST DESERTS OF ARIZONA. A RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 6 PM MST MONDAY FOR THESE SAME AREAS. * AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST DESERTS/NORTHWEST PLATEAU. * TIMING...SOUTHWEST WINDS WILL DEVELOP AGAIN MONDAY MORNING AND CONTINUE THROUGHOUT THE DAY...BEFORE DECREASING IN THE LATE AFTERNOON. * WIND...SOUTH TO SOUTHWEST DECREASING TO LESS THAN 20 MPH OVERNIGHT THEN INCREASING FROM THE SOUTHWEST AT 20 TO 25 MPH WITH GUST UP TO 40 MPH MONDAY. * HUMIDITY...MINIMUM VALUES BETWEEN 5 AND 13 PERCENT AGAIN MONDAY. * IMPACTS...THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE CONDITIONS THAT ARE FAVORABLE FOR EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE GROWTH POTENTIAL. && $$ AZZ101-CAZ229-NVZ461>466-060400- /O.EXP.KVEF.FW.W.0008.000000T0000Z-110606T0300Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH- SHEEP RANGE-SPRING MOUNTAINS- CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 759 PM PDT SUN JUN 5 2011 /759 PM MST SUN JUN 5 2011/ ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT /8 PM MST/ THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 8 PM PDT /8 PM MST/ THIS EVENING FOR FIRE WEATHER ZONES IN SOUTHEAST AND SOUTHERN NEVADA. AUTOMATED SENSORS SHOWED WIND GUSTS HAVE GENERALLY DECREASED TO LESS THAN 35 MPH ACROSS MUCH OF SOUTHEAST NEVADA AND SPEEDS ARE EXPECTED TO CONTINUE TO DIMINISH TO LESS THAN 20 MPH OVERNIGHT. RELATIVE HUMIDITY VALUES WILL GRADUALLY RECOVER TO BETWEEN 25 AND 40 PERCENT OVERNIGHT. $$ JA
493 WWUS85 KVEF 061037 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 337 AM PDT MON JUN 6 2011 .A STRONG LOW PRESSURE SYSTEM WHICH HAS BEEN OFF THE CALIFORNIA COAST WILL MOVE OUT OF CENTRAL CALIFORNIA INTO NORTHEAST NEVADA TODAY. THIS WILL GENERATE STRONG AND GUSTY WINDS ACROSS MUCH OF MOHAVE COUNTY TODAY. HUMID WILL ALSO REMAIN QUITE LOW TODAY. AZZ102-061730- /O.CON.KVEF.FW.W.0009.110606T1600Z-110607T0100Z/ NORTHWEST DESERTS/NORTHWEST PLATEAU- 337 AM MST MON JUN 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MST THIS EVENING FOR ARIZONA FIRE WEATHER ZONE 102 DUE TO GUSTY SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY... * AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST DESERTS/NORTHWEST PLATEAU. * TIMING...WINDS WILL INCREASE BY MID MORNING WITH STRONG WINDS THROUGHOUT MUCH OF THE DAY...BEFORE DECREASING IN THE LATE AFTERNOON. * WIND...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUST UP TO 45 MPH MONDAY. * HUMIDITY...MINIMUM VALUES BETWEEN 5 AND 13 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE CONDITIONS THAT ARE FAVORABLE FOR EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE GROWTH POTENTIAL. && $$
862 WWUS85 KVEF 061630 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 930 AM PDT MON JUN 6 2011 .A STRONG LOW PRESSURE SYSTEM WHICH HAS BEEN OFF THE CALIFORNIA COAST WILL MOVE OUT OF CENTRAL CALIFORNIA INTO NORTHEAST NEVADA TODAY. THIS WILL GENERATE STRONG AND GUSTY WINDS ACROSS MUCH OF MOHAVE COUNTY TODAY. HUMID WILL ALSO REMAIN QUITE LOW TODAY. AZZ102-070100- /O.CON.KVEF.FW.W.0009.000000T0000Z-110607T0100Z/ NORTHWEST DESERTS/NORTHWEST PLATEAU- 930 AM MST MON JUN 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING FOR ARIZONA FIRE WEATHER ZONE 102 DUE TO GUSTY SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING. * AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST DESERTS/NORTHWEST PLATEAU. * TIMING...WINDS WILL INCREASE BY MID MORNING WITH STRONG WINDS THROUGHOUT MUCH OF THE DAY...BEFORE DECREASING IN THE LATE AFTERNOON. * WIND...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUST UP TO 45 MPH MONDAY. * HUMIDITY...MINIMUM VALUES BETWEEN 5 AND 13 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY AND DRY FUELS WILL CREATE CONDITIONS THAT ARE FAVORABLE FOR EXTREME FIRE BEHAVIOR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXTREME FIRE GROWTH POTENTIAL. && $$
144 WWUS85 KVEF 070056 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 556 PM PDT MON JUN 6 2011 AZZ102-070200- /O.EXP.KVEF.FW.W.0009.000000T0000Z-110607T0100Z/ NORTHWEST DESERTS/NORTHWEST PLATEAU- 556 PM MST MON JUN 6 2011 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 102... THE RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR THE NORTHWEST DESERTS AND NORTHWEST PLATEAU OF ARIZONA. WIND SPEEDS WERE TRENDING DOWNWARD LATE THIS AFTERNOON AND WILL CONTINUE TO DIMINISH THROUGH THE EVENING. RELATIVE HUMDITY VALUES WILL GRADUALLY RECOVER TO BETWEEN 30 AND 45 PERCENT OVERNIGHT ACROSS MOST OF THE REGION. $$ JA
Nearby
Red Flag Warnings in Arizona, 2011Every red flag warning in 2011
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.