Red Flag Warning 7, NWS Medford, OR

Issued

Aug 4, 2016, 5:43 PM PDT (00:43 UTC)

Expired

Aug 4, 2016, 9:00 PM PDT

In force

3 hr

Issued by

NWS Medford, OR

County Modoc County, CA

The Medford radar (KMAX), 174 km from the middle of the area, began a volume at 00:42 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.

403 
WWUS86 KMFR 050043
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
543 PM PDT THU AUG 4 2016

...LOW HUMIDITIES WITH GUSTY WINDS THIS AFTERNOON AND SCATTERED
THUNDERSTORMS POSSIBLE FRIDAY...

.A POTENT UPPER LEVEL DISTURBANCE WILL APPROACH THE REGION FROM
THE SOUTHWEST ON FRIDAY. CONDITIONS WILL BE FAVORABLE FOR ISOLATED
TO SCATTERED THUNDERSTORMS FRIDAY AFTERNOON INTO FRIDAY EVENING.
THE INCREASED RISK FOR LIGHTNING WITH VERY DRY FUELS COULD RESULT
IN NEW FIRE STARTS FOR THE AFFECTED AREAS.

CAZ285-050400-
/O.NEW.KMFR.FW.W.0007.160805T0043Z-160805T0400Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
543 PM PDT THU AUG 4 2016

...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONE 285...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 9 PM PDT THIS EVENING.

* IMPACTS: STRONG, GUSTY WIND WITH LOW RELATIVE HUMIDITY AND HIGH FIRE
  DANGER WILL LIKELY CONTRIBUTE TO A SIGNIFICANT SPREAD OF NEW AND
  EXISTING FIRES.

* AFFECTED AREA: IN NORTHERN CA...FIRE WEATHER ZONE 285.

* COUNTIES AFFECTED: 
  IN NORTHERN CA...MODOC.

* WIND: SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 25 MPH.

* HUMIDITY: 5-10 PERCENT.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
  ARE OCCURRING.

* STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL CAUSE FIRES TO
  SPREAD VERY RAPIDLY.

* ONE LESS SPARK--ONE LESS WILDFIRE

&&

$$

ORZ624-625-051400-
/O.CON.KMFR.FW.W.0006.160805T2000Z-160806T0600Z/
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
543 PM PDT THU AUG 4 2016

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 11 PM PDT
FRIDAY FOR ABUNDANT LIGHTING WITH DRY FUELS FOR FIRE WEATHER
ZONES 624 AND 625...

* AFFECTED AREA: 
  IN SOUTH CENTRAL OR...FIRE WEATHER ZONES 624 AND 625.

* COUNTIES AFFECTED: 
  IN SOUTH CENTRAL OR...HARNEY...KLAMATH...LAKE.

* IMPACTS: LIGHTNING AND HIGH FIRE DANGER WILL LIKELY RESULT IN NEW
  FIRE STARTS. GUSTY THUNDERSTORM WINDS COULD CONTRIBUTE TO FIRE
  SPREAD. DESPITE RAINFALL, INITIAL ATTACK RESOURCES COULD BE
  OVERWHELMED AND HOLDOVER FIRES ARE POSSIBLE.

* TIMING: ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP
  FRIDAY AFTERNOON AND EARLY FRIDAY EVENING...THEN DISSIPATE AND
  END FRIDAY NIGHT.

* WIND: WEST 5 TO 10 MPH WITH GUSTS UP TO 20 MPH.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://WEATHER.GOV/MEDFORD/HAZARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
  WILL OCCUR SHORTLY.

* ISOLATED TO SCATTERED THUNDERSTORMS COMBINED WITH DRY FUELS
  CREATE CONDITIONS WHERE MANY FIRE STARTS MAY OCCUR IN A SHORT
  PERIOD OF TIME.

* ONE LESS SPARK--ONE LESS WILDFIRE

$$

SK

VISIT US AT WWW.WEATHER.GOV/MEDFORD

Red Flag Warnings in California, 2016Every red flag warning in 2016

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.