Alert archive / Nevada / Red Flag Warnings in 2012

Red Flag Warning 23, NWS Las Vegas, NV

June 27, 2012Lincoln County, Nevada

NWS Las Vegas, NV issued this red flag warning at Jun 27, 2012, 3:42 AM PDT for Lincoln County, Nevada. It took effect at Jun 27, 2012, 11:00 AM PDT. 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 27, 2012, 3:42 AM PDT (10:42 UTC)
In effect from
Jun 27, 2012, 11:00 AM PDT
Expired
Jun 27, 2012, 8:00 PM PDT
In force
9 hr
Issued by
NWS Las Vegas, NV

County Lincoln County, NV

The radar

The Cedar City radar (KICX), 178 km from the middle of the area, began a volume at 10:43 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, 10.7 hours before the alert went out and 153 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 2012-06-27Temperature 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 2012-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
6415 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
110 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.

622 
WWUS85 KVEF 271042
RFWVEF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
342 AM PDT WED JUN 27 2012

NVZ461-271930-
/O.NEW.KVEF.FW.W.0023.120627T1800Z-120628T0300Z/
LINCOLN COUNTY/ELY DISPATCH-
342 AM PDT WED JUN 27 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 461...

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 11 AM THIS MORNING TO 8 PM PDT THIS EVENING.

* AFFECTED AREA...IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN
  COUNTY/ELY DISPATCH. PRIMARILY NORTH OF A LINE FROM ALAMO TO
  ELGIN.

* TIMING...WIND SPEEDS WILL INCREASE THROUGH THE MORNING WITH
  GUSTS REACHING CRITICAL LEVELS FROM EARLY AFTERNOON THROUGH
  EARLY EVENING.

* WIND...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS BETWEEN 35 AND
  40 MPH.

* HUMIDITY...MINIMUM VALUES OF 3 TO 7 PERCENT.

* IMPACTS...ANY FIRES THAT DO DEVELOP WILL HAVE THE POTENTIAL TO 
  SPREAD RAPIDLY.

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
2 follow-up statements
368 
WWUS85 KVEF 272135
RFWVEF

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

NVZ461-280300-
/O.CON.KVEF.FW.W.0023.000000T0000Z-120628T0300Z/
LINCOLN COUNTY/ELY DISPATCH-
235 PM PDT WED JUN 27 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
461...

* AFFECTED AREA...IN NEVADA...FIRE WEATHER ZONE 461 LINCOLN 
  COUNTY/ELY DISPATCH.

* TIMING...THROUGH EARLY THIS EVENING.

* WIND...SOUTH TO SOUTHWEST 20 TO 25 MPH WITH GUSTS BETWEEN 35 
  AND 40 MPH. 

* HUMIDITY...MINIMUM VALUES OF 3 TO 7 PERCENT.

* IMPACTS...ANY FIRES THAT DO DEVELOP WILL HAVE THE POTENTIAL TO 
  SPREAD RAPIDLY. 

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
116 
WWUS85 KVEF 280321
RFWVEF

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

NVZ461-280430-
/O.EXP.KVEF.FW.W.0023.000000T0000Z-120628T0300Z/
LINCOLN COUNTY/ELY DISPATCH-
821 PM PDT WED JUN 27 2012

...RED FLAG WARNING HAS EXPIRED FOR STRONG WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONE 461...

OBSERVATIONS OF WIDESPREAD STRONG WINDS ACROSS LINCOLN COUNTY 
ARE BECOMING MORE ISOLATED. THE WIND WILL CONTINUE TO DIMINISH
OVERNIGHT. HOWEVER...POOR HUMIDITY RECOVERY WILL CONTINUE AS THE AREA
REMAINS UNDER A DRY SOUTHWEST FLOW.

$$

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.