Alert archive / Oregon / Red Flag Warnings in 2017

Red Flag Warning 21, NWS Medford, OR

August 3, 2017Jackson County, Klamath County, Lake County, Oregon; Modoc County, California

NWS Medford, OR issued this red flag warning at Aug 3, 2017, 2:43 PM PDT for Jackson County, Klamath County, Lake County, Oregon; Modoc County, California. It took effect at Aug 4, 2017, 1:00 PM PDT. It was in force for 8 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
Aug 3, 2017, 2:43 PM PDT (21:43 UTC)
In effect from
Aug 4, 2017, 1:00 PM PDT
Expired
Aug 4, 2017, 9:00 PM PDT
In force
8 hr
Issued by
NWS Medford, OR

Counties Modoc County, CA, Jackson County, OR, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 115 km from the middle of the area, began a volume at 21:46 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 12:00Z, 9.7 hours before the alert went out and 117 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 2017-08-03Temperature 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 12:00Z on 2017-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
2995 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

843 
WWUS86 KMFR 032143
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
243 PM PDT Thu Aug 3 2017

ORZ622-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Eastern Rogue Valley-
243 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR LOW RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE
WEATHER ZONE 622... 

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE WEATHER ZONE 622...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. The
Fire Weather Watch is no longer in effect. 

* Affected area: In Southwest OR...Fire Weather Zone 622,
  primarily in the valleys and lower elevations. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new fires. 

* Wind: North to northwest 10 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 7 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential.


&&

$$

ORZ624-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
243 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR HAINES 6 OVER EXISTING FIRES IN FIRE WEATHER ZONE 624... 

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS IN FIRE WEATHER ZONE 624...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. The
Fire Weather Watch is no longer in effect. 


* Affected area: For Thursday...In South Central OR...Central and
  southern Fire Weather Zone 624, including the Devil's Lake
  wildfire. For Friday... The south eastern portion of the zone
  just south of Silver Lake in zone 625 and  just east of Klamath
  Falls.
 
* Impacts: Strong, gusty winds with low relative humidity and
  high fire danger will likely contribute to a significant 
  spread of new and existing fires. Very dry and unstable 
  conditions will support extreme fire behavior. Plume 
  domination is possible with locally-generated erratic and 
  gusty winds. Spotting could be problematic. 

* Wind: West to northwest 5 to 10 mph with gusts up to 20 mph
  this afternoon and evening, increasing to 10 to 15 mph with 
  gusts to 25 mph Friday afternoon and evening. 

* Humidity: As low as 9 percent.

* Haines Index: 6 on Thursday.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. &&

$$

CAZ285-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.A.0015.170805T2100Z-170806T0600Z/
Modoc County Except for the Surprise Valley-
243 PM PDT Thu Aug 3 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND GUSTY WINDS IN FIRE WEATHER ZONE 285...

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SATURDAY EVENING FOR SCATTERED THUNDERSTORMS IN FIRE WEATHER ZONE
285...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. a Fire
Weather Watch has also been issued. This Fire Weather Watch is in
effect from Saturday afternoon through Saturday evening. The Fire
Weather Watch is no longer in effect. 

* Affected area: For the warning...In Northern CA...Fire Weather
  Zone 285, including most of Modoc County and much of the Modoc
  July Wildfire Complex. For the watch... see thunderstorm bullet.
 
* Impacts: For the warning...Strong, gusty wind with low relative
  humidity and high fire danger may contribute to a significant
  spread of new and existing fires. For the watch... Scattered
  thunderstorms have the potential to create new fire starts.

* Wind: For the warning...West 10 to 15 mph with gusts up to 25 
  mph.

* Humidity: For the warning...As low as 8 percent.

* Thunderstorms... For the watch on Saturday evening...Scattered
  thunderstorms with lightning activity level of 3.  Wetting rain
  will occur with some storms, but there will be strikes outside
  of wetting rains.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

ORZ617-040400-
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Umpqua National Forest-
243 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR GUSTY WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 
617...

* Affected area: In Southwest OR...Fire Weather Zone 617,
  including the Cascades and Cascade foothills of eastern 
  Douglas County.

* Impacts: Strong, gusty winds with low relative humidity and
  high fire danger will likely contribute to a significant 
  spread of new and existing fires. 

* Wind: Northwest 5 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 8 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 

$$

ORZ623-040400-
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Southern Oregon Cascades-
243 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR GUSTY WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 
623...

* Affected area: In Southwest OR...Fire Weather Zone 623,
  including the southern Oregon Cascades and the Spruce Lake 
  and Blanket Creek wildfires. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new and existing fires. 

* Wind: North 5 to 15 mph with gusts up to 25 mph.

* Humidity: As low as 9 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 


$$

CZS

Visit us at www.weather.gov/medford
5 follow-up statements
026 
WWUS86 KMFR 032218 CCA
RFWMFR

URGENT - FIRE WEATHER MESSAGE...CORRECTED
National Weather Service Medford OR
318 PM PDT Thu Aug 3 2017

ORZ622-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Eastern Rogue Valley-
318 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR LOW RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE
WEATHER ZONE 622... 

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE WEATHER ZONE 622...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. The
Fire Weather Watch is no longer in effect. 

* Affected area: In Southwest OR...Fire Weather Zone 622,
  primarily in the valleys and lower elevations. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new fires. 

* Wind: North to northwest 10 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 7 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential.


&&

$$

ORZ624-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.NEW.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
318 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR HAINES 6 OVER EXISTING FIRES IN FIRE WEATHER ZONE 624... 

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS IN FIRE WEATHER ZONE 624...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. The
Fire Weather Watch is no longer in effect. 


* Affected area: For Thursday...In South Central OR...Central and
  southern Fire Weather Zone 624, including the Devil's Lake
  wildfire. For Friday... The south eastern portion of the zone
  just south of Silver Lake in zone 625 and  just east of Klamath
  Falls.
 
* Impacts: Strong, gusty winds with low relative humidity and
  high fire danger will likely contribute to a significant 
  spread of new and existing fires. Very dry and unstable 
  conditions will support extreme fire behavior. Plume 
  domination is possible with locally-generated erratic and 
  gusty winds. Spotting could be problematic. 

* Wind: West to northwest 5 to 10 mph with gusts up to 20 mph
  this afternoon and evening, increasing to 10 to 15 mph with 
  gusts to 25 mph Friday afternoon and evening. 

* Humidity: As low as 9 percent.

* Haines Index: 6 on Thursday.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. &&

$$

CAZ285-041300-
/O.UPG.KMFR.FW.A.0014.170804T2000Z-170805T0400Z/
/O.COR.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.COR.KMFR.FW.A.0015.170805T2100Z-170806T0600Z/
Modoc County Except for the Surprise Valley-
318 PM PDT Thu Aug 3 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND GUSTY WINDS IN FIRE WEATHER ZONE 285...

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SATURDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS IN FIRE 
WEATHER ZONE 285...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 1 PM to 9 PM PDT Friday. a Fire
Weather Watch has also been issued. This Fire Weather Watch is in
effect from Saturday afternoon through Saturday evening. The Fire
Weather Watch is no longer in effect. 

* Affected area: For the warning...In Northern CA...Fire Weather
  Zone 285, including most of Modoc County and much of the Modoc
  July Wildfire Complex. For the watch... see thunderstorm bullet.
 
* Impacts: For the warning...Strong, gusty wind with low relative
  humidity and high fire danger may contribute to a significant
  spread of new and existing fires. For the watch... Scattered
  thunderstorms have the potential to create new fire starts.

* Wind: For the warning...West 10 to 15 mph with gusts up to 25 
  mph.

* Humidity: For the warning...As low as 8 percent.

* Thunderstorms... For the watch on Saturday evening...Scattered
  thunderstorms with lightning activity level of 3.  Wetting rain
  will occur with some storms, but there will be strikes outside
  of wetting rains.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

ORZ617-040400-
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Umpqua National Forest-
318 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR GUSTY WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 
617...

* Affected area: In Southwest OR...Fire Weather Zone 617,
  including the Cascades and Cascade foothills of eastern 
  Douglas County.

* Impacts: Strong, gusty winds with low relative humidity and
  high fire danger will likely contribute to a significant 
  spread of new and existing fires. 

* Wind: Northwest 5 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 8 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 

$$

ORZ623-040400-
/O.CON.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Southern Oregon Cascades-
318 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR GUSTY WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 
623...

* Affected area: In Southwest OR...Fire Weather Zone 623,
  including the southern Oregon Cascades and the Spruce Lake 
  and Blanket Creek wildfires. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new and existing fires. 

* Wind: North 5 to 15 mph with gusts up to 25 mph.

* Humidity: As low as 9 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. 


$$

CZS

Visit us at www.weather.gov/medford
428 
WWUS86 KMFR 040358
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
858 PM PDT Thu Aug 3 2017



ORZ622-041200-
/O.EXP.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
Eastern Rogue Valley-
858 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY
FOR LOW RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE WEATHER ZONE
622...

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS FOR FIRE WEATHER ZONE 622...

 Affected area: In Southwest OR...Fire Weather Zone 622,
  primarily in the valleys and lower elevations. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new fires. 

* Wind: North to northwest 10 to 15 mph with gusts up to 20 mph in
  the afternoon and evening.

* Humidity: As low as 9 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
either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create
extreme fire growth potential.

&&

$$

ORZ624-041200-
/O.EXP.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
858 PM PDT Thu Aug 3 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY FOR LOW
RELATIVE HUMIDITIES AND HIGH WINDS IN FIRE WEATHER ZONE 624...

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR
HAINES 6 OVER EXISTING FIRES IN FIRE WEATHER ZONE 624...

* Affected area: The south eastern portion of zone 624 just south
  of Silver Lake and just east of Klamath Falls.

* Impacts: Strong, gusty wind with low relative humidity and high
  fire danger will likely contribute to a significant spread of new
  and existing fires.

* Wind: West to northwest increasing to 10 to 15 mph with gusts to
  25 mph Friday afternoon and evening. 

* Humidity: as low as 9 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
either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create
extreme fire growth potential.

&&

$$

ORZ617-040500-
/O.EXP.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Umpqua National Forest-
858 PM PDT Thu Aug 3 2017

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR GUSTY
WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 617...


$$

ORZ623-040500-
/O.EXP.KMFR.FW.W.0020.000000T0000Z-170804T0400Z/
Southern Oregon Cascades-
858 PM PDT Thu Aug 3 2017

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR GUSTY
WINDS WITH LOW RELATIVE HUMIDITY IN FIRE WEATHER ZONE 623...


$$

CAZ285-041200-
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.A.0015.170805T2100Z-170806T0600Z/
Modoc County Except for the Surprise Valley-
858 PM PDT Thu Aug 3 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT FRIDAY
FOR LOW RELATIVE HUMIDITIES AND GUSTY WINDS IN FIRE WEATHER ZONE
285...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS IN
FIRE WEATHER ZONE 285...

* Affected area: For the warning...In Northern CA...Fire Weather
  Zone 285, including most of Modoc County and much of the Modoc
  July Wildfire Complex. For the watch... see thunderstorm bullet.
 
* Impacts: For the warning...Strong, gusty wind with low relative
  humidity and high fire danger may contribute to a significant
  spread of new and existing fires. For the watch... Scattered
  thunderstorms have the potential to create new fire starts.

* Wind: For the warning...West 10 to 15 mph with gusts up to 25 
  mph.

* Humidity: For the warning...As low as 8 percent.

* Thunderstorms... For the watch on Saturday evening...Scattered
  thunderstorms with lightning activity level of 3.  Wetting rain
  will occur with some storms, but there will be strikes outside
  of wetting rains.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$


Visit us at www.weather.gov/Medford
607 
WWUS86 KMFR 041032
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
332 AM PDT Fri Aug 4 2017

CAZ285-050000-
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
/O.CON.KMFR.FW.A.0015.170805T2100Z-170806T0600Z/
Modoc County Except for the Surprise Valley-
332 AM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE
WEATHER ZONE 285...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONE 285...

* Affected area: For the warning...In Northern CA...Fire Weather
  Zone 285, including most of Modoc County and much of the Modoc
  July Wildfire Complex. For the watch...see thunderstorm bullet.
 
* Impacts: For the warning...Strong, gusty wind with low relative
  humidity and high fire danger may contribute to a significant
  spread of new and existing fires. For the watch... Scattered
  thunderstorms have the potential to create new fire starts.

* Wind: For the warning...West 10 to 15 mph with gusts up to 25 
  mph.

* Humidity: For the warning...As low as 8 percent.

* Thunderstorms... For the watch on Saturday evening...Scattered
  thunderstorms with lightning activity level of 3. Wetting rain 
  will occur with some storms, but there will be strikes outside of
  wetting rains.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$

ORZ624-050000-
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
332 AM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE
WEATHER ZONE 624...

* Affected area: The south eastern portion of zone 624 just south
  of Silver Lake and just east of Klamath Falls.

* Impacts: Strong, gusty wind with low relative humidity and high
  fire danger will likely contribute to a significant spread of new
  and existing fires.

* Wind: West to northwest 10 to 15 mph with gusts to 25 mph. 

* Humidity: as low as 9 percent.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$

ORZ622-050000-
/O.CON.KMFR.FW.W.0021.170804T2000Z-170805T0400Z/
Eastern Rogue Valley-
332 AM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE
WEATHER ZONE 622...

* Affected area: In Southwest OR...Fire Weather Zone 622, 
  primarily in the valleys and lower elevations. 

* Impacts: Strong, gusty winds with low relative humidity and high
  fire danger will likely contribute to a significant spread of
  new fires. 

* Wind: North to northwest 10 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 9 percent.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$


Visit us at www.weather.gov/Medford
844 
WWUS86 KMFR 042123
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
223 PM PDT Fri Aug 4 2017

CAZ285-051215-
/O.UPG.KMFR.FW.A.0015.170805T2100Z-170806T0600Z/
/O.NEW.KMFR.FW.W.0022.170805T2100Z-170806T0600Z/
/O.NEW.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
/O.CON.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
Modoc County Except for the Surprise Valley-
223 PM PDT Fri Aug 4 2017

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

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT SATURDAY 
FOR ABUNDANT LIGHTNING ON DRY FUELS FOR MOST OF FIRE WEATHER ZONE
285...

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH 
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR MOST OF 
FIRE WEATHER ZONE 285...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 2 PM to 11 PM PDT Saturday. a
Fire Weather Watch has also been issued. This Fire Weather Watch
is in effect from Sunday afternoon through Sunday evening.

* Impacts: Strong, gusty wind with low relative humidity and high
  fire danger may contribute to a significant spread of new and
  existing fires. Lightning and high fire danger will likely 
  result in new fire starts. Gusty thunderstorm winds could 
  contribute to fire spread. Initial attack resources could be 
  overwhelmed and holdover fires are possible.

* Wind: For the warning...West 10 to 15 mph with gusts up to 25 
  mph.

* Humidity: As low as 8 percent.

* Thunderstorms...Scattered thunderstorms with lightning activity
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. Scattered thunderstorms combined 
with dry fuels create conditions where many fire starts may occur 
in a short period of time.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

ORZ624-051215-
/O.NEW.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
/O.CON.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
223 PM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 624...

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH 
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR MAINLY THE
MOUNTAINOUS AREAS OF FIRE WEATHER ZONE 624...

The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Sunday afternoon through Sunday
evening. 

* Affected area: For the warning: The south eastern portion of
  zone 624 just south of Silver Lake and just east of Klamath
  Falls. For the watch: Mainly the mountainous areas of the zone.
 
* Impacts: Strong, gusty wind with low relative humidity and
  high fire danger will likely contribute to a significant spread
  of new and existing fires. Lightning and high fire danger will 
  likely result in new fire starts. Gusty thunderstorm winds could
  contribute to fire spread. Initial attack resources could be 
  overwhelmed and holdover fires are possible.

* Wind: West to northwest 10 to 15 mph with gusts to 25 mph.

* Humidity: as low as 9 percent.

* Thunderstorms...Scattered thunderstorms with lightning activity
  level of 3. Fire crews should be aware that gusty and shifting
  winds are possible in and around thunderstorms. 

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential.

A Fire Weather Watch means that critical fire weather conditions 
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.


&&

$$

ORZ622-050400-
/O.CON.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
Eastern Rogue Valley-
223 PM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING FOR MAINLY THE VALLEYS AND LOWER ELEVATIONS OF FIRE
WEATHER ZONE 622...

* Affected area: In Southwest OR...Fire Weather Zone 622, 
  primarily in the valleys and lower elevations.

* Impacts: Strong, gusty winds with low relative humidity and
  high fire danger will likely contribute to a significant 
  spread of new fires. 

* Wind: North to northwest 10 to 15 mph with gusts up to 20 mph.

* Humidity: As low as 9 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential.

$$

CAZ280-282-051215-
/O.NEW.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Western Klamath National Forest-Shasta-
Trinity National Forest in Siskiyou County-
223 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE
WEATHER ZONES 280 AND 282...

The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Sunday afternoon through Sunday
evening. 

* Affected area: Most of Fire Weather Zone 280 and areas generally
  from Mount Shasta westward in Fire Weather Zone 282. 

* Thunderstorms...Scattered thunderstorms with lightning activity
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in
  new fire starts. Gusty thunderstorm winds could contribute to
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

CAZ284-051215-
/O.NEW.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Siskiyou County from the Cascade Mountains East and South to Mt
Shasta-
223 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR MOST OF 
FIRE WEATHER ZONE 284...

The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Sunday afternoon through Sunday
evening. 

* Affected area: Most of fire weather zone 284

* Thunderstorms...Scattered thunderstorms with lightning activity
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in
  new fire starts. Gusty thunderstorm winds could contribute to
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

ORZ621-623-051215-
/O.NEW.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Siskiyou Mountains-Southern Oregon Cascades-
223 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR MOST OF
FIRE WEATHER ZONES 621 AND 623...

The National Weather Service in Medford has issued a Fire Weather
Watch, which is in effect from Sunday afternoon through Sunday
evening. 

* Affected area: Most of fire weather zones 621 and 623 

* Thunderstorms...Scattered thunderstorms with lightning activity
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in
  new fire starts. Gusty thunderstorm winds could contribute to
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$


Visit us at www.weather.gov/medford
247 
WWUS86 KMFR 050405
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
905 PM PDT Fri Aug 4 2017

CAZ285-051615-
/O.EXP.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
/O.CON.KMFR.FW.W.0022.170805T2100Z-170806T0600Z/
/O.CON.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Modoc County Except for the Surprise Valley-
905 PM PDT Fri Aug 4 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT
SATURDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE
285...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONE 285...

...RED FLAG WARNING HAS EXPIRED FOR ABUNDANT LIGHTNING ON DRY
FUELS FOR FIRE WEATHER ZONE 285...

* 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.

* Wind: southwest 5 to 10 mph with gusts up to 20 mph.

* Humidity: as low as 14 percent.

* Thunderstorms: Scattered thunderstorms with lightning activity 
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* 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 either occurring now, or will shortly. A combination of strong
winds, low relative humidity and warm temperatures will create 
extreme fire growth potential. Scattered thunderstorms combined 
with dry fuels create conditions where many fire starts may occur 
in a short period of time.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.

&&

$$

ORZ624-051615-
/O.EXP.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
/O.CON.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Klamath Basin and the Fremont-Winema National Forest-
905 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONE 624...

...RED FLAG WARNING HAS EXPIRED FOR ABUNDANT LIGHTNING ON DRY
FUELS FOR FIRE WEATHER ZONE 624...

* Affected area: 
  In South Central OR...Fire Weather Zone 624.

* 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.

* Wind: west 5 to 10 mph.

* Humidity: as low as 11 percent.

* Thunderstorms: Scattered thunderstorms with lightning activity 
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible Red
Flag Warnings.

&&

$$

ORZ622-050515-
/O.EXP.KMFR.FW.W.0021.000000T0000Z-170805T0400Z/
Eastern Rogue Valley-
905 PM PDT Fri Aug 4 2017

...RED FLAG WARNING HAS EXPIRED FOR LOW HUMIDITY AND GUSTY WINDS 
FOR FIRE WEATHER ZONE 622...

Conditions have improved and are no longer considered an immediate
threat. Thus, the Red Flag Warning has been allowed to expire. 

$$

CAZ280-282-051615-
/O.CON.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Western Klamath National Forest-Shasta-
Trinity National Forest in Siskiyou County-
905 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONES 280 AND 282...

* Affected area: 
  In Northern CA...Fire Weather Zones 280 and 282.

* Thunderstorms...Scattered thunderstorms with lightning activity 
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in 
  new fire starts. Gusty thunderstorm winds could contribute to 
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$

CAZ284-051615-
/O.CON.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Siskiyou County from the Cascade Mountains East and South to Mt
Shasta-
905 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONE 284...

* Affected area: 
  In Northern CA...Fire Weather Zone 284.

* Thunderstorms...Scattered thunderstorms with lightning activity 
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in 
  new fire starts. Gusty thunderstorm winds could contribute to 
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  http://weather.gov/medford/hazard

$$

ORZ621-623-051615-
/O.CON.KMFR.FW.A.0016.170806T2000Z-170807T0600Z/
Siskiyou Mountains-Southern Oregon Cascades-
905 PM PDT Fri Aug 4 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONES 621 AND 623...

* Affected area: 
  In Southwest OR...Fire Weather Zones 621 and 623.

* Thunderstorms...Scattered thunderstorms with lightning activity 
  level of 3. Fire crews should be aware that gusty and shifting 
  winds are possible in and around thunderstorms.

* Impacts...Lightning and high fire danger will likely result in 
  new fire starts. Gusty thunderstorm winds could contribute to 
  fire spread. Initial attack resources could be overwhelmed and 
  holdover fires are possible.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD

$$


Visit us at www.weather.gov/Medford

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 2:43 PM PDTFire Weather WatchMFRModoc24 hr

Nearby

Red Flag Warnings in Oregon, 2017Red Flag Warnings in California, 2017Every red flag warning in 2017

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.