Alert archive / California / Red Flag Warnings in 2014

Red Flag Warning 2, NWS Medford, OR

May 27, 2014Modoc County, California

NWS Medford, OR issued this red flag warning at May 27, 2014, 4:58 AM PDT for Modoc County, California. It took effect at May 27, 2014, 2:00 PM PDT. It was in force for 7 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
May 27, 2014, 4:58 AM PDT (11:58 UTC)
In effect from
May 27, 2014, 2:00 PM PDT
Expired
May 27, 2014, 9:00 PM PDT
In force
7 hr
Issued by
NWS Medford, OR

County Modoc County, CA

The radar

The Medford radar (KMAX), 174 km from the middle of the area, began a volume at 11:58 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

Medford/Jackson, OR (KMFR), launched 00:00Z, 12.0 hours before the alert went out and 192 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, Medford/Jackson, OR at 00:00Z on 2014-05-27Temperature 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, Medford/Jackson, OR at 00:00Z on 2014-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
2262 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
147 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.

829 
WWUS86 KMFR 271158
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
458 AM PDT TUE MAY 27 2014

. AHEAD OF A LOW MOVING INTO THE AREA STRONG AND GUSTY WINDS WILL
DEVELOP THIS AFTERNOON INTO EARLY EVENING. THIS WILL COMBINE WITH
LOW AFTERNOON HUMIDITIES AND DRY CONDITIONS ON TUESDAY.

CAZ285-280000-
/O.UPG.KMFR.FW.A.0002.140527T2100Z-140528T0300Z/
/O.NEW.KMFR.FW.W.0002.140527T2100Z-140528T0300Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
458 AM PDT TUE MAY 27 2014

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM
PDT THIS EVENING FOR A COMBINATION OF LOW RH AND STRONG WINDS...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT
THIS EVENING FOR A COMBINATION OF LOW RH AND STRONG WINDS. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA: MOST OF FIRE WEATHER ZONE 285

* WIND...SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS TO 35 MPH.

* HUMIDITY...12-16 PERCENT.

* IMPACTS...THE COMBINATION OF DRY CONDITIONS...GUSTY SOUTHWEST
  WINDS AND LOW HUMIDITIES MAY CREATE THE POTENTIAL FOR RAPID FIRE
  GROWTH.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$


VISIT US AT WWW.WEATHER.GOV/MEDFORD
3 follow-up statements
501 
WWUS86 KMFR 271544
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
844 AM PDT TUE MAY 27 2014

.STRONG AND GUSTY WESTERLY WINDS WILL DEVELOP THIS AFTERNOON INTO
EARLY EVENING AHEAD OF A LOW. THESE WINDS WILL COMBINE WITH ABOVE
NORMAL TEMPERATURES AND LOW HUMIDITIES.

CAZ285-280300-
/O.CON.KMFR.FW.W.0002.140527T2100Z-140528T0300Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
844 AM PDT TUE MAY 27 2014

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM PDT THIS EVENING FOR THE COMBINATION OF STRONG WINDS AND LOW
RELATIVE HUMIDITIES FOR FIRE WEATHER ZONE 285...

* AFFECTED AREA: THE SOUTHEASTERN HALF OF FIRE WEATHER ZONE 285.
  THIS INCLUDES ALTURAS, ADIN, LIKELY, AND THE WARNER MOUNTAINS.

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

* HUMIDITY...12-16 PERCENT.

* IMPACTS...THE COMBINATION OF DRY CONDITIONS...GUSTY SOUTHWEST TO
  WEST WINDS AND LOW HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID
  FIRE GROWTH.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$
DW

VISIT US AT WWW.WEATHER.GOV/MEDFORD
527 
WWUS86 KMFR 280241
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
741 PM PDT TUE MAY 27 2014

CAZ285-280400-
/O.EXT.KMFR.FW.W.0002.000000T0000Z-140528T0400Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
741 PM PDT TUE MAY 27 2014

...RED FLAG WARNING EXTENDED UNTIL 9 PM PDT THIS EVENING FOR THE
COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE
WEATHER ZONE 285...

THE RED FLAG WARNING HAS BEEN EXTENDED UNTIL 9 PM PDT THIS EVENING.

* AFFECTED AREA: THE SOUTHEASTERN HALF OF FIRE WEATHER ZONE 
  285. THIS INCLUDES ALTURAS... ADIN... LIKELY... AND THE 
  WARNER MOUNTAINS.

* WIND...SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS TO 30 MPH.

* HUMIDITY...12-16 PERCENT.

* IMPACTS...THE COMBINATION OF DRY CONDITIONS...GUSTY SOUTHWEST
  TO WEST WINDS AND LOW HUMIDITIES WILL CREATE THE POTENTIAL 
  FOR RAPID FIRE GROWTH. 

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$
FB


VISIT US AT WWW.WEATHER.GOV/MEDFORD
373 
WWUS86 KMFR 280416
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
916 PM PDT TUE MAY 27 2014

CAZ285-280530-
/O.EXP.KMFR.FW.W.0002.000000T0000Z-140528T0400Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
916 PM PDT TUE MAY 27 2014

...RED FLAG WARNING HAS EXPIRED FOR COMBINATION OF STRONG WINDS
AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONE 285...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. WEST WINDS HAVE
DECREASED BELOW 15 MPH AND RELATIVE HUMIDITIES HAVE CLIMBED ABOVE
15 PERCENT. EXPECT GRADUAL RISE IN HUMIDITY OVERNIGHT WITH WINDS
COMING BELOW 10 MPH AT MOST LOCATIONS IN FIRE ZONE 285 BY
MIDNIGHT.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5 

$$
FB

VISIT US AT WWW.WEATHER.GOV/MEDFORD

Nearby

Red Flag Warnings in California, 2014Every red flag warning in 2014

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.