Alert archive / Nevada / Red Flag Warnings in 2012

Red Flag Warning 24, NWS Las Vegas, NV

June 27, 2012Lincoln County, Nye County, Nevada

NWS Las Vegas, NV issued this red flag warning at Jun 27, 2012, 9:20 PM PDT for Lincoln County, Nye County, Nevada. It took effect at Jun 28, 2012, 10:00 AM PDT. It was in force for 11 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 27, 2012, 9:20 PM PDT (04:20 UTC)
In effect from
Jun 28, 2012, 10:00 AM PDT
Expired
Jun 28, 2012, 9:00 PM PDT
In force
11 hr
Issued by
NWS Las Vegas, NV

Counties Lincoln County, NV, Nye County, NV

The radar

The Las Vegas radar (KESX), 248 km from the middle of the area, began a volume at 04:26 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, 4.3 hours before the alert went out and 164 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 00:00Z on 2012-06-28Temperature 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 00:00Z on 2012-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
6311 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
12 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.

623 
WWUS85 KVEF 280420
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
920 PM PDT WED JUN 27 2012

NVZ461-462-281330-
/O.NEW.KVEF.FW.W.0024.120628T1700Z-120629T0400Z/
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
920 PM PDT WED JUN 27 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 9 PM PDT THURSDAY FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
461 AND 462...

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 TO 9 PM PDT THURSDAY.

* AFFECTED AREA...IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN 
  COUNTY/ELY DISPATCH AND FIRE WEATHER ZONE 462 NYE COUNTY 
  DESERTS/LAS VEGAS DISPATCH.

* TIMING...WINDS WILL INCREASE BY LATE MORNING...PEAK DURING THE
  AFTERNOON THROUGH EARLY EVENING HOURS...DECREASE BY LATE EVENING.

* WIND...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH.

* HUMIDITY...4 TO 9 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.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS
3 follow-up statements
625 
WWUS85 KVEF 281150
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
450 AM PDT THU JUN 28 2012

NVZ461-462-282230-
/O.CON.KVEF.FW.W.0024.120628T1700Z-120629T0400Z/
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
450 AM PDT THU JUN 28 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
9 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY
FOR FIRE WEATHER ZONES 461 AND 462...

* AFFECTED AREA...IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN 
  COUNTY/ELY DISPATCH AND FIRE WEATHER ZONE 462 NYE COUNTY 
  DESERTS/LAS VEGAS DISPATCH.

* TIMING...WINDS WILL INCREASE BY LATE MORNING...PEAK DURING THE 
  AFTERNOON THROUGH EARLY EVENING HOURS...DECREASE BY LATE 
  EVENING. 

* WIND...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH.

* HUMIDITY...4 TO 9 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. OUTDOOR BURNING IS NOT
RECOMMENDED.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS
796 
WWUS85 KVEF 282101
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
201 PM PDT THU JUN 28 2012

NVZ461-462-290400-
/O.CON.KVEF.FW.W.0024.000000T0000Z-120629T0400Z/
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
201 PM PDT THU JUN 28 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
461 AND 462...

* AFFECTED AREA...IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN 
  COUNTY/ELY DISPATCH AND FIRE WEATHER ZONE 462 NYE COUNTY 
  DESERTS/LAS VEGAS DISPATCH.

* TIMING...WIDESPREAD STRONG WINDS WILL CONTINUE THROUGH EARLY
  THIS EVENING...DECREASE BY LATE EVENING.

* WIND...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH.

* HUMIDITY...4 TO 9 PERCENT ZONE 462...9 TO 14 PERCENT ZONE 461.

* 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. OUTDOOR BURNING IS NOT
RECOMMENDED.

&&

$$

HTTP://WEATHER.GOV/LASVEGAS
715 
WWUS85 KVEF 290352
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
852 PM PDT THU JUN 28 2012

NVZ461-462-290500-
/O.EXP.KVEF.FW.W.0024.000000T0000Z-120629T0400Z/
LINCOLN COUNTY/ELY DISPATCH-NYE COUNTY DESERTS/LAS VEGAS DISPATCH-
852 PM PDT THU JUN 28 2012

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR
STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
461 AND 462...

WINDS HAVE FALLEN BELOW CRITICAL THRESHOLDS ACROSS LINCOLN COUNTY
AND CENTRAL NYE COUNTY THIS EVENING. THE RED FLAG WARNING WILL BE
ALLOWED TO EXPIRE AT 9 PM PDT.

$$

HTTP://WEATHER.GOV/LASVEGAS

Nearby

Red Flag Warnings in Nevada, 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.