Alert archive / Arizona / Red Flag Warnings in 2016

Red Flag Warning 3, NWS Las Vegas, NV

July 9, 2016Mohave County, Arizona; San Bernardino County, California

NWS Las Vegas, NV issued this red flag warning at Jul 9, 2016, 2:11 PM MST for Mohave County, Arizona; San Bernardino County, California. It took effect at Jul 10, 2016, 10:00 AM MST. It was in force for 12 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
Jul 9, 2016, 2:11 PM MST (21:11 UTC)
In effect from
Jul 10, 2016, 10:00 AM MST
Expired
Jul 10, 2016, 10:00 PM MST
In force
12 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, San Bernardino County, CA

The radar

The Las Vegas radar (KESX), 48 km from the middle of the area, began a volume at 21:17 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, 9.2 hours before the alert went out and 133 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 12:00Z on 2016-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2016-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3683 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

344 
WWUS85 KVEF 092111
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
211 PM PDT SAT JUL 9 2016

.AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM MOVING ACROSS THE
PACIFIC NORTHWEST WILL BRING GUSTY WINDS AND CONTINUED DRY
CONDITIONS TO THE AREA THROUGH SUNDAY.

AZZ102-CAZ228-101200-
/O.UPG.KVEF.FW.A.0002.160710T1700Z-160711T0500Z/
/O.NEW.KVEF.FW.W.0003.160710T1700Z-160711T0500Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-
211 PM PDT SAT JUL 9 2016 /211 PM MST SAT JUL 9 2016/

...RED FLAG WARNING IN EFFECT FROM 10 AM PDT /10 AM MST/ TO 10 PM
PDT /10 PM MST/ SUNDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER
ZONES 102 AND 228...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM PDT /10 AM MST/ TO 10 PM
PDT /10 PM MST/ SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT. 

* TIMING...LATE SUNDAY MORNING THROUGH SUNDAY EVENING.

* WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS TO 40 MPH POSSIBLE.

* HUMIDITY...7 TO 13 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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 CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

CAZ226-NVZ461>464-101200-
/O.CON.KVEF.FW.W.0002.000000T0000Z-160710T1200Z/
OWENS VALLEY/SOUTHERN INYO FOREST-LINCOLN COUNTY/ELY DISPATCH-
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-SHEEP RANGE-
SPRING MOUNTAINS-
211 PM PDT SAT JUL 9 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SUNDAY FOR
STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226...461...462...
463 AND 464...

* AFFECTED AREA...IN CAZ226...FIRE WEATHER ZONE 226. IN NVZ461...
  FIRE WEATHER ZONE 461. IN NVZ462...FIRE WEATHER ZONE 462. IN 
  NVZ463...FIRE WEATHER ZONE 463. IN NVZ464...FIRE WEATHER ZONE 
  464. 

* TIMING...FROM LATE THIS MORNING TO LATE TONIGHT.

* WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. GUSTS 
  COULD EXCEED 50 MPH IN THE SIERRA.

* HUMIDITY...MINIMUM OF 10 TO 15 PERCENT AT HIGHER ELEVATIONS 
  AND5 TO 10 PERCENT AT LOWER ELEVATIONS. 

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW....OR ARE EXPECTED TO OCCUR SOON. A
COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM
TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$


HTTP://WEATHER.GOV/LASVEGAS
3 follow-up statements
568 
WWUS85 KVEF 101144
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
444 AM PDT SUN JUL 10 2016

.AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM MOVING ACROSS THE
PACIFIC NORTHWEST WILL BRING GUSTY WINDS AND CONTINUED DRY
CONDITIONS TO THE AREA TODAY.

CAZ226-NVZ461>464-101245-
/O.EXP.KVEF.FW.W.0002.000000T0000Z-160710T1200Z/
OWENS VALLEY/SOUTHERN INYO FOREST-LINCOLN COUNTY/ELY DISPATCH-
NYE COUNTY DESERTS/LAS VEGAS DISPATCH-SHEEP RANGE-
SPRING MOUNTAINS-
444 AM PDT SUN JUL 10 2016

...RED FLAG WARNING WILL EXPIRE AT 5 AM PDT EARLY THIS MORNING
FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226...461...
462... 463 AND 464...

WINDS ARE BEGINNING TO DECREASE ACROSS THE AREA...AND RELATIVE
HUMIDITIES HAVE RISEN ABOVE WARNING CRITERIA. THEREFORE, THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE.

$$

AZZ102-CAZ228-110000-
/O.CON.KVEF.FW.W.0003.160710T1700Z-160711T0500Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-
444 AM PDT SUN JUL 10 2016 /444 AM MST SUN JUL 10 2016/

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM PDT /10 AM MST/
THIS MORNING TO 10 PM PDT /10 PM MST/ THIS EVENING FOR GUSTY
WINDS AND LOW RH FOR FIRE WEATHER ZONES 102 AND 228...

* TIMING...LATE THIS MORNING THROUGH THIS EVENING.

* WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS TO 40 MPH POSSIBLE.

* HUMIDITY...7 TO 13 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW....OR ARE EXPECTED TO OCCUR SOON. A
COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM
TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

CMS

HTTP://WEATHER.GOV/LASVEGAS
985 
WWUS85 KVEF 102045
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
145 PM PDT SUN JUL 10 2016

AZZ102-CAZ228-110500-
/O.CON.KVEF.FW.W.0003.000000T0000Z-160711T0500Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-
145 PM PDT SUN JUL 10 2016 /145 PM MST SUN JUL 10 2016/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT /10 PM MST/
THIS EVENING FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES
102 AND 228...

* TIMING...THROUGH THIS EVENING.

* WIND...SOUTHWEST 15 TO 25 MPH WITH GUSTS TO 40 MPH.

* HUMIDITY...7 TO 13 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW....OR ARE EXPECTED TO OCCUR SOON. A
COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM
TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$


HTTP://WEATHER.GOV/LASVEGAS
148 
WWUS85 KVEF 110449
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
949 PM PDT SUN JUL 10 2016

AZZ102-CAZ228-110600-
/O.EXP.KVEF.FW.W.0003.000000T0000Z-160711T0500Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
MOJAVE DESERT INCLUDING MORONGO VALLEY/YUCCA VALLEY-
949 PM PDT SUN JUL 10 2016 /949 PM MST SUN JUL 10 2016/

...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT /10 PM MST/ THIS
EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES
102 AND 228...

WINDS HAD DECREASED OVER MOST OF THE AREA THIS EVENING, SO THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE.

$$

MORGAN

HTTP://WEATHER.GOV/LASVEGAS

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 2:14 PM MSTWind AdvisoryVEFSan Bernardino32 hr

Nearby

Red Flag Warnings in Arizona, 2016Red Flag Warnings in California, 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.