Alert archive / Nevada / Red Flag Warnings in 2012

Red Flag Warning 5, NWS Las Vegas, NV

March 31, 2012Clark County, Nevada; Mohave County, Arizona; San Bernardino County, California

NWS Las Vegas, NV issued this red flag warning at Mar 31, 2012, 5:17 AM PDT for Clark County, Nevada; Mohave County, Arizona; San Bernardino County, California. It took effect at Apr 1, 2012, 12:00 PM PDT. It was in force for 2 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
Mar 31, 2012, 5:17 AM PDT (12:17 UTC)
In effect from
Apr 1, 2012, 12:00 PM PDT
Expired
Apr 1, 2012, 2:09 PM PDT
In force
2 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, San Bernardino County, CA, Clark County, NV

The radar

The Las Vegas radar (KESX), 15 km from the middle of the area, began a volume at 12:15 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, 0.3 hours before the alert went out and 101 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 2012-03-31Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2012-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.193958Sfc1 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
2939 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

943 
WWUS85 KVEF 311217
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
517 AM PDT SAT MAR 31 2012

.A PACIFIC STORM SYSTEM MOVING INTO CALIFORNIA SATURDAY WILL
CAUSE INCREASING SOUTH TO SOUTHWEST WINDS ACROSS THE AREA ALONG
WITH CONTINUED DRY CONDITIONS.

AZZ101-CAZ229-NVZ466-010000-
/O.NEW.KVEF.FW.W.0005.120401T1900Z-120402T0200Z/
/O.CON.KVEF.FW.W.0004.120331T2000Z-120401T0400Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
517 AM PDT SAT MAR 31 2012 /517 AM MST SAT MAR 31 2012/

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM PDT /1 PM MST/
THIS AFTERNOON TO 9 PM PDT /9 PM MST/ THIS EVENING FOR STRONG
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 101...
229 AND 466...
...RED FLAG WARNING IN EFFECT FROM NOON PDT /NOON MST/ TO 7 PM
PDT /7 PM MST/ SUNDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
FOR FIRE WEATHER ZONES 101...229 AND 466...

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 NOON PDT /NOON MST/ TO 7 PM PDT /7 PM MST/ SUNDAY. A
RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM PDT /1 PM MST/ THIS
AFTERNOON TO 9 PM PDT /9 PM MST/ THIS EVENING. 

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD
  NRA/COLORADO RIVER-AZ SIDE. IN CALIFORNIA...FIRE WEATHER ZONE
  229 LOWER COLORADO RIVER VALLEY. IN NEVADA...FIRE WEATHER ZONE
  466 LAKE MEAD NRA/COLORADO RIVER-NV SIDE.

* TIMING...THIS AFTERNOON THROUGH THIS EVENING AND THEN AGAIN FOR
  SUNDAY AFTERNOON.

* WIND...FOR TODAY...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUSTS 40
  TO 45 MPH EXCEPT 15 TO 25 MPH WITH GUSTS TO 35 MPH ALONG THE
  COLORADO RIVER SOUTH OF THE LAUGHLIN BULLHEAD CITY AREA. ON
  SUNDAY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO NEAR 40 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

AZZ102-NVZ465-010000-
/O.CON.KVEF.FW.W.0004.120331T2000Z-120401T0400Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-
517 AM PDT SAT MAR 31 2012 /517 AM MST SAT MAR 31 2012/

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM PDT /1 PM MST/
THIS AFTERNOON TO 9 PM PDT /9 PM MST/ THIS EVENING FOR STRONG
WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 102 AND
465...

A RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM PDT /1 PM MST/
THIS AFTERNOON TO 9 PM PDT /9 PM MST/ THIS EVENING. 

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST
  DESERTS/NORTHWEST PLATEAU. IN NEVADA...FIRE WEATHER ZONE 465
  CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH.

* TIMING...THIS AFTERNOON THROUGH THIS EVENING.

* WIND...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUSTS 40 TO 45 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS
4 follow-up statements
230 
WWUS85 KVEF 312058
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
158 PM PDT SAT MAR 31 2012

.A PACIFIC STORM SYSTEM MOVING INTO CALIFORNIA THIS AFTERNOON WILL
LEAD TO GUSTY SOUTH TO SOUTHWEST WINDS ACROSS THE AREA ALONG WITH
CONTINUED DRY CONDITIONS. WINDS WILL SHIFT TO THE NORTH OR NORTHWEST
ON SUNDAY WITH CONTINUED WIND CONDITIONS IN THE COLORADO RIVER VALLEY.

AZZ101-CAZ229-NVZ466-010500-
/O.CON.KVEF.FW.W.0004.000000T0000Z-120401T0400Z/
/O.CON.KVEF.FW.W.0005.120401T1900Z-120402T0200Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
158 PM PDT SAT MAR 31 2012 /158 PM MST SAT MAR 31 2012/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT /9 PM MST/
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 101...229 AND 466...
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON PDT /NOON MST/ TO
7 PM PDT /7 PM MST/ SUNDAY FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 101...229 AND 466...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT /9 PM MST/
THIS EVENING.

 A RED FLAG WARNING REMAINS IN EFFECT FROM NOON PDT /NOON MST/ TO
7 PM PDT /7 PM MST/ SUNDAY.

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD 
  NRA/COLORADO RIVER-AZ SIDE. IN CALIFORNIA...FIRE WEATHER ZONE 
  229 LOWER COLORADO RIVER VALLEY. IN NEVADA...FIRE WEATHER ZONE 
  466 LAKE MEAD NRA/COLORADO RIVER-NV SIDE. 

* TIMING...THE REST OF THIS AFTERNOON AND THIS EVENING AND THEN
  AGAIN FOR SUNDAY AFTERNOON.

* WIND...FOR TODAY...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUSTS 
  40 TO 45 MPH EXCEPT 15 TO 25 MPH WITH GUSTS TO 35 MPH ALONG 
  THE COLORADO RIVER SOUTH OF THE LAUGHLIN BULLHEAD CITY AREA. 
  ON SUNDAY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO NEAR 40 
  MPH. 

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

AZZ102-NVZ465-010400-
/O.CON.KVEF.FW.W.0004.000000T0000Z-120401T0400Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-
158 PM PDT SAT MAR 31 2012 /158 PM MST SAT MAR 31 2012/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT /9 PM MST/
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 102 AND 465...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT /9 PM MST/
THIS EVENING. 

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 102 NORTHWEST 
  DESERTS/NORTHWEST PLATEAU. IN NEVADA...FIRE WEATHER ZONE 465 
  CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH. 

* TIMING...THE REST OF THIS AFTERNOON AND THIS EVENING.

* WIND...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUSTS 40 TO 45 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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

HTTP://WEATHER.GOV/LASVEGAS
832 
WWUS85 KVEF 010341
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
841 PM PDT SAT MAR 31 2012

.GUSTY SOUTH TO SOUTHWEST WINDS WILL SHIFT TO THE NORTH OR
NORTHWEST ON SUNDAY...WITH THE STRONGEST WINDS IN THE COLORADO
RIVER VALLEY.

AZZ101-CAZ229-NVZ466-011330-
/O.EXP.KVEF.FW.W.0004.000000T0000Z-120401T0400Z/
/O.CON.KVEF.FW.W.0005.120401T1900Z-120402T0200Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
841 PM PDT SAT MAR 31 2012 /841 PM MST SAT MAR 31 2012/

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON PDT /NOON MST/ TO
7 PM PDT /7 PM MST/ SUNDAY FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 101 - 229 AND 466...
...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT /9 PM MST/ THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 101 - 229 AND 466...

THE RED FLAG WARNING FOR THE LAKE MEAD NATIONAL RECREATION AREA
AND THE COLORADO RIVER VALLEY WILL EXPIRE AT 9 PM THIS EVENING.
ANOTHER RED FLAG WARNING REMAINS IN EFFECT FOR THIS AREA FROM
NOON TO 7 PM SUNDAY.

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD 
  NRA/COLORADO RIVER-AZ SIDE. IN CALIFORNIA...FIRE WEATHER ZONE 
  229 LOWER COLORADO RIVER VALLEY. IN NEVADA...FIRE WEATHER ZONE 
  466 LAKE MEAD NRA/COLORADO RIVER-NV SIDE. 

* TIMING...RELATIVE HUMIDITIES HAD RECOVERED THIS EVENING...BUT
  VERY DRY AIR AND GUSTY NORTHERLY WINDS WILL BE SEEN SUNDAY
  AFTERNOON.

* WIND...SOUTH TO SOUTHWEST 20 TO 30 MPH WITH GUSTS 35 TO 45 MPH
  OVERNIGHT AND EARLY SUNDAY MORNING...BECOMING NORTH 15 TO 25 MPH
  WITH GUSTS AROUND 40 MPH LATE SUNDAY MORNING AND CONTINUING INTO
  SUNDAY EVENING.

* HUMIDITY...15 TO 25 PERCENT OVERNIGHT...DROPPING TO 10 TO 15
  PERCENT DURING THE DAY SUNDAY.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

AZZ102-NVZ465-010445-
/O.EXP.KVEF.FW.W.0004.000000T0000Z-120401T0400Z/
NORTHWEST DESERTS/NORTHWEST PLATEAU-
CLARK AND SW LINCOLN COUNTY DESERTS/LAS VEGAS DISPATCH-
841 PM PDT SAT MAR 31 2012 /841 PM MST SAT MAR 31 2012/

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT /9 PM MST/ THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 102 AND 465...

THE RED FLAG WARNING FOR NORTHWEST ARIZONA AND EXTREME SOUTHERN
NEVADA WILL EXPIRE AT 9 PM THIS EVENING.

RELATIVE HUMIDITIES HAD RECOVERED ABOVE 15 PERCENT THIS
EVENING...SO THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE.

$$

MORGAN

HTTP://WEATHER.GOV/LASVEGAS
300 
WWUS85 KVEF 011306
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
606 AM PDT SUN APR 1 2012

.GUSTY SOUTH TO SOUTHWEST WINDS WILL SHIFT TO THE NORTH OR
NORTHWEST TODAY. ALTHOUGH WINDS WILL DECREASE SOMEWHAT
TONIGHT...GUSTY WINDS ARE ONCE AGAIN LOOKED FOR ON MONDAY.

AZZ101-CAZ229-NVZ466-020000-
/O.EXT.KVEF.FW.W.0005.120401T1900Z-120403T0300Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
606 AM PDT SUN APR 1 2012 /606 AM MST SUN APR 1 2012/

...RED FLAG WARNING NOW IN EFFECT FROM NOON PDT /NOON MST/ TODAY
TO 8 PM PDT /8 PM MST/ MONDAY FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 101...229 AND 466...

THE RED FLAG WARNING IS NOW IN EFFECT FROM NOON PDT /NOON MST/
TODAY TO 8 PM PDT /8 PM MST/ MONDAY. 

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD 
  NRA/COLORADO RIVER-AZ SIDE. IN CALIFORNIA...FIRE WEATHER ZONE 
  229 LOWER COLORADO RIVER VALLEY. IN NEVADA...FIRE WEATHER ZONE 
  466 LAKE MEAD NRA/COLORADO RIVER-NV SIDE. 

* TIMING...GUSTY NORTH WINDS WILL BE SEEN THIS AFTERNOON WITH
  RELATIVE HUMIDITY VALUES DROPPING TO BELOW 15 PERCENT. WINDS
  WILL DECREASE TONIGHT WITH ONLY POOR HUMIDITY RECOVERY. WINDS
  WILL INCREASE EARLY MONDAY AND REMAIN GUSTY THROUGH THE DAY AS
  HUMIDITIES ONCE AGAIN DROP TO BELOW 15 PERCENT.

* WIND...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS 35 EARLY THIS
  MORNING...BECOMING NORTH 20 TO 30 MPH WITH GUSTS AROUND 40 MPH
  THIS AFTERNOON. WINDS WILL DECREASE SOMEWHAT OVERNIGHT...BUT
  STRONGER WINDS MAY DEVELOP ON MONDAY. GUSTS TO OVER 40 MPH WITH LOCAL
  GUSTS TO OVER 60 MPH POSSIBLE. WINDS WILL DIMINISH MONDAY
  EVENING.

* HUMIDITY...DAYTIME HUMIDITIES BETWEEN 10 AND 15 PERCENT WITH
  TONIGHTS RECOVERY 15 TO 20 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS
242 
WWUS85 KVEF 012109
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
209 PM PDT SUN APR 1 2012

...RED FLAG WARNING FOR TODAY HAS BEEN CANCELLED...

.STRONG NORTH WINDS...RELATIVE HUMIDITY VALUES LESS THAN 15
PERCENT AND DRY FUELS WILL LEAD TO THE POTENTIAL OF ERRATIC FIRE
BEHAVIOR MONDAY.

AZZ101-CAZ229-NVZ466-021400-
/O.CAN.KVEF.FW.W.0005.000000T0000Z-120403T0300Z/
/O.NEW.KVEF.FW.W.0006.120402T1700Z-120403T0300Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY-
LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
209 PM PDT SUN APR 1 2012 /209 PM MST SUN APR 1 2012/

...RED FLAG WARNING IN EFFECT FROM 10 AM PDT /10 AM MST/ TO 8 PM
PDT /8 PM MST/ MONDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
FOR FIRE WEATHER ZONES 101...229 AND 466...

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 10 AM PDT /10 AM MST/ TO 8 PM PDT /8 PM MST/ MONDAY.

THE RED FLAG WARNING FOR TODAY HAS BEEN CANCELLED. 

* AFFECTED AREA...IN ARIZONA...FIRE WEATHER ZONE 101 LAKE MEAD 
  NRA/COLORADO RIVER-AZ SIDE. IN CALIFORNIA...FIRE WEATHER ZONE 
  229 LOWER COLORADO RIVER VALLEY. IN NEVADA...FIRE WEATHER ZONE 
  466 LAKE MEAD NRA/COLORADO RIVER-NV SIDE. 

* TIMING...GUSTY NORTH WINDS WILL DEVELOP MONDAY MORNING WITH
  RELATIVE HUMIDITY VALUES DROPPING TO BELOW 15 PERCENT BY LATE
  MORNING. WINDS WILL DECREASE EARLY MONDAY EVENING.

* WIND...NORTH WIND 25 TO 35 MPH WITH GUSTS TO 55 MPH.

* HUMIDITY...LOWERING TO BETWEEN 10 AND 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG WINDS...LOW 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.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS

PIERCE

Nearby

Red Flag Warnings in Nevada, 2012Red Flag Warnings in Arizona, 2012Red Flag Warnings in California, 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.