Alert archive / Oregon / Red Flag Warnings in 2015

Red Flag Warning 17, NWS Medford, OR

August 2, 20157 counties in Oregon; Siskiyou County, California

NWS Medford, OR issued this red flag warning at Aug 2, 2015, 3:14 PM PDT for 7 counties in Oregon; Siskiyou County, California. It took effect at Aug 3, 2015, 2:00 PM PDT. It was in force for 9 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 2, 2015, 3:14 PM PDT (22:14 UTC)
In effect from
Aug 3, 2015, 2:00 PM PDT
Expired
Aug 3, 2015, 11:00 PM PDT
In force
9 hr
Issued by
NWS Medford, OR

Counties Siskiyou County, CA, Douglas County, OR, Harney County, OR, Jackson County, OR, Josephine County, OR, Klamath County, OR, Lake County, OR, Lane County, OR

The radar

The Medford radar (KMAX), 97 km from the middle of the area, began a volume at 22:17 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.

What was reported inside it

TimeReportWhereRemark
Aug 3, 9:43 PM PDTTSTM WND GST 451 Wnw Coleman Mountain, ORTHUNDERSTORM BETWEEN 943 AND 1043 PM MDT BROUGHT 0.01 INCHES OF RAIN...SHIFTED WIND FROM N 10G14 MPH TO WNW 29G45 MPH AND DROPPED TEMP FROM 70 TO 56. AS OF 1143 PM 0.03 INCHES OF RAIN AND 55 DEGREES. HUMIDITY UP TO 84 PERCENT FROM MIN OF 23 PCT NEAR 7PM.
Aug 3, 9:53 PM PDTTSTM WND GST 43Burns, ORTHUNDERSTORMS SHIFTED WINDS FROM SSW 28G36 MPH AT 854 PDT TO NNW 21G29 AT 1053 PM PDT. PEAK WINDS OF 43 MPH OCCURRED 951-953 PM PDT. 0.20 INCHES OF RAIN OCCURRED AS WELL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 10.2 hours before the alert went out and 80 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 12:00Z on 2015-08-02Temperature 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, Medford/Jackson, OR at 12:00Z on 2015-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 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
2330 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
63 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.

141 
WWUS86 KMFR 022214
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
314 PM PDT SUN AUG 2 2015

ORZ617-623-031015-
/O.NEW.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
UMPQUA NATIONAL FOREST-SOUTHERN OREGON CASCADES-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY.

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS WILL BECOME
  SCATTERED THIS AFTERNOON AND CONTINUE THROUGH TONIGHT. WHILE
  STORMS WILL START OUT MOSTLY DRY...THEY WILL BECOME WETTER WITH
  TIME. SKIES WILL CLEAR EARLY MONDAY MORNING WITH SCATTERED
  THUNDERSTORMS DEVELOPING AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: 
  IN SOUTHWEST OR...FIRE WEATHER ZONES 617 AND 623.

* COUNTIES AFFECTED: JOSEPHINE...JACKSON...KLAMATH...SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ624-031015-
/O.NEW.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY.

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS WILL BECOME
  SCATTERED LATE THIS AFTERNOON AND CONTINUE THROUGH TONIGHT.
  WHILE STORMS WILL START OUT MOSTLY DRY...THEY WILL BECOME
  WETTER WITH TIME. SKIES WILL CLEAR EARLY MONDAY MORNING WITH
  SCATTERED THUNDERSTORMS DEVELOPING AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: 
  IN SOUTH CENTRAL OR...FIRE WEATHER ZONE 624.

* COUNTIES AFFECTED: KLAMATH...LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ625-031015-
/O.NEW.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
/O.CON.KMFR.FW.W.0016.000000T0000Z-150803T1200Z/
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM TO 11 PM PDT MONDAY.

* THUNDERSTORMS: ISOLATED DRY THUNDERSTORMS ARE EXPECTED TO BECOME
  SCATTERED LATE THIS AFTERNOON AND CONTINUE TONIGHT. WHILE STORMS
  WILL START OUT DRY...THEY WILL BECOME WETTER WITH TIME. SKIES
  WILL CLEAR EARLY MONDAY MORNING WITH SCATTERED THUNDERSTORMS
  DEVELOPING AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* AFFECTED AREA: 
  IN SOUTH CENTRAL OR...FIRE WEATHER ZONE 625.

* COUNTIES AFFECTED: LAKE AND HARNEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ621-031015-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
SISKIYOU MOUNTAINS-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS THIS MORNING 
  WILL BECOME SCATTERED THIS AFTERNOON AND CONTINUE THROUGH 
  TONIGHT. WHILE STORMS WILL START OUT MOSTLY DRY... THEY WILL 
  BECOME WETTER WITH TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: 
  IN SOUTHWEST OR...FIRE WEATHER ZONE 621.

* COUNTIES AFFECTED: JOSEPHINE...JACKSON...KLAMATH...SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

ORZ615-616-619-620-622-030600-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T0600Z/
SOUTH CENTRAL OREGON COAST-UMPQUA BASIN-WESTERN ROGUE RIVER-
SISKIYOU NATIONAL FOREST-
WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY-
EASTERN ROGUE VALLEY-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS WILL BECOME
  SCATTERED THIS AFTERNOON AND CONTINUE THROUGH THIS EVENING.
  WHILE STORMS WILL START OUT MOSTLY DRY...THEY WILL BECOME
  WETTER WITH TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING AND LOCATIONS: THE GREATEST COVERAGE OF THUNDERSTORMS 
  WILL BE DURING THE AFTERNOON AND EVENING HOURS AND IN THE 
  MOUNTAINS. HOWEVER... STORMS WILL MOVE OUT OVER THE VALLEYS AT 
  TIMES.

* AFFECTED AREA: 
  IN  FIRE ZONE....616.
  IN SOUTHWEST OR FIRE ZONES...615...619...620...622.

* COUNTIES AFFECTED: JACKSON... JOSEPHINE... DOUGLAS... CURRY...
AND COOS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

CAZ280-281-284-030600-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T0600Z/
WESTERN KLAMATH NATIONAL FOREST-
CENTRAL SISKIYOU COUNTY INCLUDING SHASTA VALLEY-
SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT
SHASTA-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS WILL BECOME
  SCATTERED THIS AFTERNOON AND CONTINUE INTO THIS EVENING. WHILE
  STORMS WILL START OUT MOSTLY DRY...THEY WILL BECOME WETTER WITH
  TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING AND LOCATIONS: THE GREATEST COVERAGE OF THUNDERSTORMS 
  WILL BE DURING THE AFTERNOON AND EVENING HOURS AND IN THE 
  MOUNTAINS. HOWEVER... STORMS WILL MOVE OUT OVER THE VALLEYS AT 
  TIMES.

* AFFECTED AREA: 
  IN NORTHERN CA...FIRE WEATHER ZONES 280...281 AND 284.

* COUNTIES AFFECTED: SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

CAZ285-031015-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
314 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* THUNDERSTORMS: ISOLATED MOSTLY DRY THUNDERSTORMS WILL BECOME
  SCATTERED THIS AFTERNOON AND CONTINUE THROUGH TONIGHT. WHILE
  STORMS WILL START OUT MOSTLY DRY...THEY WILL BECOME WETTER WITH
  TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

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

* COUNTIES AFFECTED: MODOC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD
4 follow-up statements
978 
WWUS86 KMFR 030203
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
703 PM PDT SUN AUG 2 2015

CAZ280-281-284-ORZ615-616-619-620-622-030315-
/O.CAN.KMFR.FW.W.0015.000000T0000Z-150803T0600Z/
WESTERN KLAMATH NATIONAL FOREST-
CENTRAL SISKIYOU COUNTY INCLUDING SHASTA VALLEY-
SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT
SHASTA-SOUTH CENTRAL OREGON COAST-UMPQUA BASIN-
WESTERN ROGUE RIVER-SISKIYOU NATIONAL FOREST-
WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY-
EASTERN ROGUE VALLEY-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED
FLAG WARNING. 

* AFFECTED AREA: FIRE WEATHER ZONES 281...622...284...615...
  616...280...620 AND 619 

$$

ORZ617-623-031415-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
UMPQUA NATIONAL FOREST-SOUTHERN OREGON CASCADES-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT
   MONDAY...

* THUNDERSTORMS: ISOLATED TO SCATTERED MOSTLY DRY THUNDERSTORMS
  WILL CONTINUE THROUGH TONIGHT. WHILE STORMS WILL START OUT
  MOSTLY DRY...THEY WILL BECOME WETTER WITH TIME. SKIES WILL CLEAR
  EARLY MONDAY MORNING WITH SCATTERED THUNDERSTORMS DEVELOPING
  AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR.

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: IN SOUTHWEST OR...FIRE WEATHER ZONES 617 AND 
  623.

* COUNTIES AFFECTED: JOSEPHINE...JACKSON...KLAMATH...SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS
COULD ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ624-031415-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT
  MONDAY...

* THUNDERSTORMS: ISOLATED TO SCATTERED MOSTLY DRY THUNDERSTORMS
  WILL CONTINUE THROUGH TONIGHT. WHILE STORMS WILL START OUT
  MOSTLY DRY...THEY WILL BECOME WETTER WITH TIME. SKIES WILL CLEAR
  EARLY MONDAY MORNING WITH SCATTERED THUNDERSTORMS DEVELOPING
  AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR.

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: IN SOUTH CENTRAL OR...FIRE WEATHER ZONE 624. 

* COUNTIES AFFECTED: KLAMATH...LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS
COULD ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ625-031415-
/O.CON.KMFR.FW.W.0016.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN
LAKE AND WESTERN HARNEY COUNTIES-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT
   MONDAY...

* THUNDERSTORMS: ISOLATED TO SCATTERED DRY THUNDERSTORMS WILL
  CONTINUE TONIGHT. WHILE STORMS WILL START OUT DRY...THEY WILL
  BECOME WETTER WITH TIME. SKIES WILL CLEAR EARLY MONDAY MORNING
  WITH SCATTERED THUNDERSTORMS DEVELOPING AGAIN MONDAY AFTERNOON.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR.

* AFFECTED AREA: IN SOUTH CENTRAL OR...FIRE WEATHER ZONE 625. 

* COUNTIES AFFECTED: LAKE AND HARNEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS
COULD ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ621-031200-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
SISKIYOU MOUNTAINS-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* THUNDERSTORMS: ISOLATED TO SCATTERED MOSTLY DRY THUNDERSTORMS
  WILL CONTINUE THROUGH TONIGHT. WHILE STORMS WILL START OUT
  MOSTLY DRY...THEY WILL BECOME WETTER WITH TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR.

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

* AFFECTED AREA: IN SOUTHWEST OR...FIRE WEATHER ZONE 621. 

* COUNTIES AFFECTED: JOSEPHINE...JACKSON...KLAMATH...SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

CAZ285-031200-
/O.CON.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
703 PM PDT SUN AUG 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT MONDAY...

* THUNDERSTORMS: ISOLATED TO SCATTERED MOSTLY DRY THUNDERSTORMS
  WILL CONTINUE THROUGH TONIGHT. WHILE STORMS WILL START OUT
  MOSTLY DRY...THEY WILL BECOME WETTER WITH TIME.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR.

* TIMING: THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE DURING 
  THE AFTERNOON AND EVENING HOURS.

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

* COUNTIES AFFECTED: MODOC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$


VISIT US AT WWW.WEATHER.GOV/MEDFORD
081 
WWUS86 KMFR 031004
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
304 AM PDT MON AUG 3 2015

ORZ625-040000-
/O.CAN.KMFR.FW.W.0016.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING...
...RED FLAG WARNING FOR THIS MORNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG
WARNING FOR THIS MORNING. A RED FLAG WARNING REMAINS IN EFFECT FOR
THIS AFTERNOON AND EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP
  THIS AFTERNOON AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY MAY LEAD TO NEW FIRE
  STARTS AND WILL CREATE ERRATIC FIRE BEHAVIOR ON NEW AND EXISTING
  FIRES.

* AFFECTED AREA: IN SOUTH CENTRAL OR...FIRE WEATHER ZONE 625.

* COUNTIES AFFECTED: LAKE AND HARNEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

ORZ624-040000-
/O.CAN.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING...
...RED FLAG WARNING FOR THIS MORNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG
WARNING FOR THIS MORNING. A RED FLAG WARNING REMAINS IN EFFECT FOR
THIS AFTERNOON AND EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP
  THIS AFTERNOON AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY MAY LEAD TO NEW FIRE
  STARTS AND WILL CREATE ERRATIC FIRE BEHAVIOR ON NEW AND EXISTING
  FIRES. 

* AFFECTED AREA: IN SOUTH CENTRAL OR...THE NORTHERN PORTION OF
  FIRE WEATHER ZONE 624.

* COUNTIES AFFECTED: KLAMATH...LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

ORZ617-623-040000-
/O.CAN.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
/O.CON.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
UMPQUA NATIONAL FOREST-SOUTHERN OREGON CASCADES-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING...
...RED FLAG WARNING FOR THIS MORNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG
WARNING FOR THIS MORNING. A RED FLAG WARNING REMAINS IN EFFECT FOR
THIS AFTERNOON AND EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP
  THIS AFTERNOON AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY MAY LEAD TO NEW FIRE
  STARTS AND WILL CREATE ERRATIC FIRE BEHAVIOR ON NEW AND EXISTING
  FIRES. 

* AFFECTED AREA: IN SOUTHWEST OR...FIRE WEATHER ZONES 617 AND
  623.

* COUNTIES AFFECTED: DOUGLAS...JACKSON...AND KLAMATH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

ORZ621-040000-
/O.CAN.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
/O.EXA.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
SISKIYOU MOUNTAINS-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING FROM 2 PM THIS AFTERNOON TO 11 PM PDT THIS
EVENING...
...RED FLAG WARNING FOR THIS MORNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG
WARNING FOR THIS MORNING. A NEW RED FLAG WARNING HAS BEEN ISSUED
AND IS IN EFFECT FOR THIS AFTERNOON AND EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP
  THIS AFTERNOON AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY MAY LEAD TO NEW FIRE
  STARTS AND WILL CREATE ERRATIC FIRE BEHAVIOR ON NEW AND EXISTING
  FIRES. 

* AFFECTED AREA: IN SOUTHWEST OR...FIRE WEATHER ZONE 621.

* COUNTIES AFFECTED: JOSEPHINE...JACKSON...AND SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

CAZ285-031115-
/O.CAN.KMFR.FW.W.0015.000000T0000Z-150803T1200Z/
MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG
WARNING.

THUNDERSTORMS HAVE DIMINISHED THIS MORNING AND THUS THE RED FLAG
WARNING IS CANCELLED. THUNDERSTORMS ARE POSSIBLE AGAIN THIS
AFTERNOON AND EVENING, BUT THEY ARE EXPECTED TO REMAIN ISOLATED
OVER THE MOUNTAINS.

$$

CAZ280-040000-
/O.EXA.KMFR.FW.W.0017.150803T2100Z-150804T0600Z/
WESTERN KLAMATH NATIONAL FOREST-
304 AM PDT MON AUG 3 2015

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM
PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT
THIS EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP
  OVER THE MOUNTAINS OF WESTERN SISKIYOU COUNTY THIS AFTERNOON AND
  CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY MAY LEAD TO NEW FIRE
  STARTS AND WILL CREATE ERRATIC FIRE BEHAVIOR ON NEW AND EXISTING
  FIRES. 

* AFFECTED AREA: IN NORTHERN CA...FIRE WEATHER ZONE 280.

* COUNTIES AFFECTED: SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD
690 
WWUS86 KMFR 032154
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
254 PM PDT MON AUG 3 2015

CAZ284-040600-
/O.EXA.KMFR.FW.W.0017.000000T0000Z-150804T0600Z/
SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT
SHASTA-
254 PM PDT MON AUG 3 2015

...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 11 PM PDT THIS EVENING.

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE
  INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* AFFECTED AREA: 
  IN NORTHERN CA...FIRE WEATHER ZONE 284.

* COUNTIES AFFECTED: DOUGLAS...JACKSON...AND KLAMATH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

&&

$$

ORZ617-621-623>625-040600-
/O.CON.KMFR.FW.W.0017.000000T0000Z-150804T0600Z/
UMPQUA NATIONAL FOREST-SISKIYOU MOUNTAINS-SOUTHERN OREGON CASCADES-
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
254 PM PDT MON AUG 3 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO 
  REDEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* AFFECTED AREA: 
  IN SOUTH CENTRAL OR FIRE ZONES...624...625.
  IN SOUTHWEST OR FIRE ZONES...617...621...623.

* COUNTIES AFFECTED: LAKE AND HARNEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

CAZ280-040600-
/O.CON.KMFR.FW.W.0017.000000T0000Z-150804T0600Z/
WESTERN KLAMATH NATIONAL FOREST-
254 PM PDT MON AUG 3 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP 
  OVER THE MOUNTAINS OF WESTERN SISKIYOU COUNTY THIS AFTERNOON 
  AND CONTINUE INTO THE EVENING.

* IMPACTS: INCREASING THUNDERSTORM ACTIVITY WILL CREATE ERRATIC 
  FIRE BEHAVIOR. 

* AFFECTED AREA: 
  IN NORTHERN CA...FIRE WEATHER ZONE 280.

* COUNTIES AFFECTED: SISKIYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT EXTREME FIRE CONDITIONS ARE
OCCURRING OR IMMINENT.

&&

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD
295 
WWUS86 KMFR 040548
RFWMFR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
1048 PM PDT MON AUG 3 2015

CAZ284-ORZ617-621-623>625-040700-
/O.EXP.KMFR.FW.W.0017.000000T0000Z-150804T0600Z/
SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT
SHASTA-UMPQUA NATIONAL FOREST-SISKIYOU MOUNTAINS-
SOUTHERN OREGON CASCADES-KLAMATH BASIN AND THE FREMONT-
WINEMA NATIONAL FOREST-
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
1048 PM PDT MON AUG 3 2015

...RED FLAG WARNING WILL EXPIRE AT 11 PM PDT THIS EVENING...

THE THUNDERSTORMS OVER THE AREA HAVE DISSIPATED.  

$$

CAZ280-040700-
/O.EXP.KMFR.FW.W.0017.000000T0000Z-150804T0600Z/
WESTERN KLAMATH NATIONAL FOREST-
1048 PM PDT MON AUG 3 2015

...RED FLAG WARNING WILL EXPIRE AT 11 PM PDT THIS EVENING...

THE THUNDERSTORMS OVER THE AREA HAVE DISSIPATED.

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Medford, OR wrote its last area forecast discussion before this red flag warning went out at Aug 2, 3:07 PM PDT, 7 minutes earlier.

Area forecast discussion, Aug 2, 3:07 PM PDT, 7 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
307 PM PDT SUN AUG 2 2015

.DISCUSSION...AN UPPER LEVEL LOW PRESSURE SYSTEM OFF THE
CALIFORNIA COAST CONTINUES TO SEND MOISTURE NORTH-NORTHWESTWARD
FROM NEVADA INTO NORTHERN CALIFORNIA AND SOUTHWEST OREGON. THERE
HAS BEEN A STUBBORN CORRIDOR OF THICK MID/UPPER LEVEL CLOUD
COVER AND SCATTERED SHOWERS FROM DOUGLAS COUNTY SOUTHEASTWARD TO
WESTERN MODOC COUNTY. THE CLOUD COVER HAS LARGELY PREVENTED
CONVECTION SO FAR THIS AFTERNOON DUE TO A LACK OF SURFACE HEATING
AND INSTABILITY IN THESE AREAS. HOWEVER, ON THE EDGES OF THE THICK
CLOUDS, WHERE SOME SUN WAS ABLE TO POKE THROUGH, CONVECTION
DEVELOPED OVER PORTIONS OF NORTHWEST CALIFORNIA AND MOVED INTO
CURRY COUNTY IN THE LAST HOUR OR SO. VARIOUS LIGHTNING NETWORKS
INDICATED ABOUT 100-150 CLOUD TO GROUND LIGHTNING STRIKES ON THE
WEST END OF THE KALMIOPSIS WILDERNESS WITH A FEW BOLTS AT THE
BEACHES NEAR GOLD BEACH AND PORT ORFORD. THE MAIN VORT LOBE WILL
SWING NORTHWARD THROUGH THE EAST SIDE LATE THIS AFTERNOON THROUGH
TONIGHT. CURRENT RADAR IMAGERY IS SHOWING THUNDERSTORMS DEVELOPING
IN THE VICINITY OF THE WARNER MOUNTAINS AND ALSO JUST NORTHWEST OF
LAKEVIEW. EXPECT THIS AREA TO BE THE FOCUS FOR SHOWERS AND
THUNDERSTORMS THROUGH TONIGHT. THERE IS SOME DESTABILIZATION ALSO
TAKING PLACE IN WESTERN SISKIYOU COUNTY AND EXPECT WE SHOULD SEE
SOME CELLS DEVELOP THERE TOO, ALBEIT PERHAPS CLOSER TO OR AFTER
00Z (5 PM PDT). SINCE THE FLOW ALOFT IS FROM THE SOUTH AND
SOUTHEAST, MUCH OF THE ACTION WILL PROPAGATE NORTH- NORTHWESTWARD
THROUGH THE EVENING HOURS. THUNDER POTENTIAL WILL CONTINUE THROUGH
THE OVERNIGHT HOURS, BUT SHOULD DWINDLE BACK TO SHOWERS BY
SUNRISE.

BY MONDAY, THE FLOW ALOFT WILL TURN SOUTHWESTERLY. MOST OF THE
ENERGY FROM THE VORT LOBE WILL HAVE LIFTED NORTH OF THE AREA, BUT
AN AXIS OF INSTABILITY WILL REMAIN FROM THE SISKIYOU/MARBLE
MOUNTAINS NORTH-NORTHEASTWARD UP THE CASCADES TO NORTHERN KLAMATH
AND LAKE COUNTIES. EXPECT AN AREA OF SCATTERED THUNDERSTORMS TO
DEVELOP NEAR THE CASCADES IN THE AFTERNOON, THEN MOVE EAST-
NORTHEASTWARD OVER THE FREMONT-WINEMA NATIONAL FOREST AREAS DURING
THE LATE AFTERNOON AND EVENING. ACTIVITY SHOULD BE MORE ISOLATED
BACK TOWARD THE SOUTHWEST.

ON TUESDAY, MODELS ARE SHOWING ANOTHER SOUTHERLY SURGE OF MOISTURE
AS ANOTHER SHORTWAVE APPROACHES THE NORCAL COAST. THE NAM12 IS
FARTHER NORTH AND WEST THAN THE REST OF THE MODELS WITH THIS
FEATURE SHOWING POTENTIAL FOR ACTIVITY TO MOVE BACK WEST OF THE
CASCADES. BUT FOR NOW, HAVE GONE WITH THE CONSENSUS (A BIT
FARTHER SOUTH AND EAST) AND HAVE AN AREA OF SHOWERS AND
THUNDERSTORMS POSSIBLE IN THE SAME GENERAL LOCATIONS AS ON MONDAY
FROM SISKIYOU COUNTY NORTH-NORTHEASTWARD UP ALONG THE CASCADES TO
THE EAST SIDE.

THE SHORTWAVE WILL FINALLY MOVE INLAND ON WEDNESDAY AND MOST AREAS
WILL DRY OUT, THOUGH WE HAVE MAINTAINED A SLIGHT CHANCE OF
THUNDERSTORMS IN PORTIONS OF EASTERN MODOC AND LAKE COUNTIES. DRY
WEATHER WILL CONTINUE INTO THURSDAY, THEN ANOTHER UPPER LOW OFF
THE CALIFORNIA COAST WILL MOVE IN LATE IN THE WEEK INTO THE
WEEKEND. THIS MAY BRING ANOTHER ROUND OF SHOWERS AND
THUNDERSTORMS...ESPECIALLY FROM THE CASCADES EASTWARD. SPILDE

&&

.AVIATION...FOR THE 02/18Z TAF CYCLE...AREAS OF SMOKE WILL PERSIST
THROUGH TONIGHT FOR ALL TAF LOCATIONS EXCEPT FOR NORTH BEND AND
ROSEBURG WITH REDUCED VISIBILITIES AND LIMITED VERTICAL VISIBILITY.
OUTSIDE THE SMOKE, CONDITIONS WILL BE VFR. ISOLATED THUNDERSTORMS
ARE POSSIBLE OVER PARTS OF THE AREA THROUGH THIS EVENING, ESPECIALLY
IN AREAS THAT HAVE LITTLE OR NO CLOUD COVER WHICH INCLUDES PARTS OF
CURRY COUNTY AND LAKE COUNTY EAST OF THE CASCADES. STORMS MAY
PRODUCE GUSTY, ERRATIC WINDS AND BRIEF MVFR CIGS/VIS. AT THE COAST,
AREAS IFR STRATUS WILL RETURN AGAIN TONIGHT. -PETRUCELLI

&&

.MARINE...UPDATED 200 PM PDT SUNDAY 2 AUGUST 2015...OFFSHORE HIGH
PRESSURE AND WEAK LOW PRESSURE NEAR THE COAST WILL KEEP WINDS LIGHT
AND SEAS SMALL THROUGH TUESDAY MORNING. THE MODELS ARE IN GOOD
AGREEMENT SHOWING A THERMAL TROUGH AND HIGH PRESSURE OFFSHORE
STRENGTHENING TUESDAY AFTERNOON. THIS WILL BRING INCREASING NORTH
WINDS AND CHOPPY SEAS LATE TUESDAY AFTERNOON AND IS LIKELY TO LAST
INTO AT LEAST THURSDAY. -PETRUCELLI

&&

.FIRE WEATHER...UPDATED 250 AM PDT SUNDAY 2 AUGUST 2015...WITH
CLEARING IN NORTHWESTERN CALIFORNIA AND EXTREME SOUTHWEST OREGON
THUNDERSTORMS HAVE QUICKLY DEVELOPED THIS AFTERNOON. THE STORMS HAVE
BEEN MOSTLY OVER THE SOUTHERN COASTAL RANGES SO FAR...BUT THE LINE
OF SHOWERS THAT EXTEND ALONG THE VORTICITY AXIS THAT STRETCHES
FROM THE STORMS IN CURRY COUNTY TO LASSEN COUNTY ARE SHOWING
INTENSIFICATION AND AM EXPECTING THIS TO CONTINUE AS THE SHORTWAVE
CONTINUES TO MOVE NORTH BEHIND THE EXITING CLOUD SHIELD. ELEVATED
INSTABILITY REMAINS PAST 6Z TONIGHT WITH ANOTHER...WEAKER SHORT
WAVE MOVING ACROSS THE REGION KEEPING THE POSSIBILITY OF ISOLATED
THUNDERSTORMS OVERNIGHT. BY EARLY MORNING THE CLOUD DECK FROM THE
PREVIOUS EVENING'S THUNDERSTORMS SHOULD EXIT MOST OF THE
REGION...ALLOWING BETTER SURFACE HEATING THAN TODAY. THE FLOW THAT
IS FEEDING MOISTURE INTO THE REGION WILL BECOME MORE
SOUTHWESTERLY...PUSH THE UNSTABLE AIR MASS TO THE EAST WITH
THUNDERSTORMS DEVELOPING IN NORTHERN CALIFORNIA...THE CASCADES AND
THE EAST SIDE. THE FLOW CONTINUES ITS WESTERLY SHIFT WITH ONLY
ISOLATED THUNDERSTORMS EXPECTED FROM THE CASCADES EASTWARD AND
NORTHERN CALIFORNIA. BY WEDNESDAY THE FLOW WILL BE NORTHWESTERLY
ACROSS THE ENTIRE REGION WITH HIGH TEMPERATURES NEAR OR BELOW
NINETY DEGREES ACROSS THE ENTIRE AREA. SVEN

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...RED FLAG WARNING UNTIL 5 AM PDT MONDAY FOR ORZ625.
     RED FLAG WARNING FROM 2 PM TO 11 PM PDT MONDAY FOR
     ORZ617-623>625.
     RED FLAG WARNING UNTIL 5 AM PDT MONDAY FOR ORZ624.
     RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING FOR
     ORZ615-616-619-620-622.
     RED FLAG WARNING UNTIL 5 AM PDT MONDAY FOR ORZ617-621-623.

CA...RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING FOR
     CAZ280-281-284.
     RED FLAG WARNING UNTIL 5 AM PDT MONDAY FOR CAZ285.

PACIFIC COASTAL WATERS...NONE.

MAS/SBN/MAP/CZS

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 5:56 PM PDTSevere Thunderstorm WarningMFRSiskiyou34 min

Nearby

Red Flag Warnings in Oregon, 2015Red Flag Warnings in California, 2015Every red flag warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.