Alert archive / Oregon / Red Flag Warnings in 2024

Red Flag Warning 21, NWS Medford, OR

August 14, 2024Harney County, Klamath County, Lake County, Oregon

NWS Medford, OR issued this red flag warning at Aug 14, 2024, 2:59 AM PDT for Harney County, Klamath County, Lake County, Oregon. It took effect at Aug 14, 2024, 8:00 PM PDT. It was in force for 22 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 14, 2024, 2:59 AM PDT (09:59 UTC)
In effect from
Aug 14, 2024, 8:00 PM PDT
Expired
Aug 15, 2024, 6:22 PM PDT
In force
22 hr
Issued by
NWS Medford, OR

Counties Harney County, OR, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 213 km from the middle of the area, began a volume at 10:03 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, 10.0 hours before the alert went out and 209 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 2024-08-14Temperature 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 2024-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
2453 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

356 
WWUS86 KMFR 140959
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
259 AM PDT Wed Aug 14 2024

...ISOLATED TO SCATTERED THUNDERSTORMS THIS EVENING AND OVERNIGHT,
THEN AGAIN THURSDAY AFTERNOON...

.Low pressure will move into the region late this afternoon and 
overnight, providing sufficient trigger for thunderstorm 
initiation. Isolated storms will initially start out over 
portions of northern California late this afternoon, then move 
northeastward and continue into the overnight hours. After a 
relative lull early Thursday morning, another round of isolated to
scattered thunderstorms is expected across northern Klamath and 
Lake Counties Thursday afternoon. 

ORZ624-625-142200-
/O.UPG.KMFR.FW.A.0015.240815T0600Z-240816T0600Z/
/O.NEW.KMFR.FW.W.0021.240815T0300Z-240816T0600Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
259 AM PDT Wed Aug 14 2024

...RED FLAG WARNING IN EFFECT FROM 8 PM THIS EVENING TO 11 PM PDT
THURSDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER
ZONES 624 AND 625...

The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 8 PM this evening to 11 PM PDT
Thursday. 

* IMPACTS...Abundant lightning on dry fuels will increase the risk
  of new fire starts. Additionally, gusty outflow winds will allow
  for new and existing fires to grow rapidly. 

* AFFECTED AREA...Most of Oregon Fire Zones 624 and 625 north of
  Highway 140. This includes the Warner Peak Fire, though the
  greatest coverage of storms is likely to be north of the Warner
  Peak Fire. 

* THUNDERSTORMS...Isolated to scattered thunderstorms this evening
  and overnight with a relative lull in thunderstorm activity
  expected early Thursday morning. Another round of isolated to
  scattered thunderstorms is expected Thursday afternoon and
  evening, with the greatest coverage expected north of a line
  from Chiloquin to Paisley. Despite potential rain with these
  thunderstorms, lightning strikes outside of precipitation 
  cores are possible and cause for concern.

* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up to
  40 to 50 mph. These outflow winds can travel up to 50 miles away
  from the thunderstorm that caused it. 

* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. Avoid activities that could cause
sparks. Visit weather.gov/medford/wildfire for links to fire
restrictions in your area.

If you have not packet your go kit yet, now is the time to do so.
This includes items like important documents and essentials you
cannot live without. Fill your vehicle's fuel tank. Visit
ready.gov/kit for more information.

A Red Flag Warning means that critical fire weather conditions 
are either occurring now or will shortly. These conditions promote
rapid spread of fire which may become life threatening. Evacuate 
if ordered to, or if a fire threatens.

&&

$$

Visit us at www.weather.gov/Medford
4 follow-up statements
476 
WWUS86 KMFR 142021
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
121 PM PDT Wed Aug 14 2024

...ISOLATED TO SCATTERED THUNDERSTORMS THIS EVENING AND
OVERNIGHT, THEN AGAIN THURSDAY AFTERNOON...

.Low pressure will move into the region late this afternoon and
overnight, providing sufficient trigger for thunderstorm
initiation. Isolated storms will initially start out over
portions of northern California later this afternoon, then move
northeastward and continue into the overnight hours. After a
relative lull early Thursday morning, another round of isolated
to scattered thunderstorms is expected across northern Klamath
and Lake Counties Thursday afternoon.

ORZ624-625-151200-
/O.CON.KMFR.FW.W.0021.240815T0300Z-240816T0600Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
121 PM PDT Wed Aug 14 2024

...RED FLAG WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
11 PM PDT THURSDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE
WEATHER ZONES 624 AND 625...

* IMPACTS...Abundant lightning on dry fuels will increase the 
  risk of new fire starts. Additionally, gusty outflow winds 
  will allow for new and existing fires to grow rapidly. 

* AFFECTED AREA...Most of Oregon Fire Zones 624 and 625 north of
  Highway 140. This includes the Warner Peak Fire, though the
  greatest coverage of storms is likely to be north and west of 
  the Warner Peak Fire.

* THUNDERSTORMS...Isolated to scattered thunderstorms this
  evening and overnight with a relative lull in thunderstorm 
  activity expected early Thursday morning. Another round of 
  isolated to scattered thunderstorms is expected Thursday 
  afternoon and evening, with the greatest coverage expected 
  north of a line from Chiloquin to Paisley. Despite potential 
  rain with these thunderstorms, lightning strikes outside of 
  precipitation cores are possible and cause for concern. 

* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up 
  to 40 to 50 mph. These outflow winds can travel up to 50 miles 
  away from the thunderstorm that caused it. 

* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. You can find your county's emergency 
sign up form as well as links to fire restrictions at 
weather.gov/medford/wildfire. One less spark, one less wildfire.

Be sure you're signed up for your county's emergency alert system. 
Familiarize yourself with your emergency plan and make sure you 
listen to emergency services. Visit ready.gov/plan for more 
information.

A red flag warning is issued when we identify weather conditions 
that promote rapid spread of fire which may become life-threatening. 
This does not mean there is a fire. These conditions are either 
occurring now or will begin soon. It is important to have multiple 
ways to receive information from authorities. 

&&

$$


Visit us at www.weather.gov/Medford
911 
WWUS86 KMFR 151122
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
422 AM PDT Thu Aug 15 2024

ORZ624-625-160600-
/O.CON.KMFR.FW.W.0021.000000T0000Z-240816T0600Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
422 AM PDT Thu Aug 15 2024

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER
ZONES 624 AND 625...

* IMPACTS...Abundant lightning on dry fuels will increase the 
  risk of new fire starts. Additionally, gusty outflow winds 
  will allow for new and existing fires to grow rapidly. 

* AFFECTED AREA...Most of Oregon Fire Zones 624 and 625 north 
  of Highway 140. This includes the Warner Peak Fire, though 
  the greatest coverage of storms is likely to be north and 
  west of the Warner Peak Fire.

* THUNDERSTORMS...Another round of isolated to scattered
  thunderstorms is expected this afternoon and evening, with the
  greatest coverage expected north of a line from Chiloquin to
  Paisley. Despite rain with these thunderstorms, lightning 
  strikes outside of precipitation cores are possible and cause 
  for concern.

* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up 
  to 40 to 50 mph. These outflow winds can travel up to 50 
  miles away from the thunderstorm that caused it.

* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. You can find your county's
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.

Be sure you're signed up for your county's emergency alert
system. Familiarize yourself with your emergency plan and make
sure you listen to emergency services. Visit ready.gov/plan for
more information.

A red flag warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.

&&

$$


Visit us at www.weather.gov/Medford
462 
WWUS86 KMFR 152106
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
206 PM PDT Thu Aug 15 2024

...ISOLATED TO SCATTERED THUNDERSTORMS THROUGH THIS EVENING...

.Isolated to scattered thunderstorms could develop and will move 
northeastward this evening across northern Klamath and Lake 
Counties. Strong southerly flow ahead of a low returns this 
weekend and a Fire Weather Watch has been issued for Saturday 
because of gusty winds and low RH. Some strong storms may also 
develop along and west of the Cascades.

ORZ625-161230-
/O.NEW.KMFR.FW.A.0016.240817T2100Z-240818T0300Z/
/O.EXT.KMFR.FW.W.0021.000000T0000Z-240816T0300Z/
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
206 PM PDT Thu Aug 15 2024

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR
ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625... 

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE 
WEATHER ZONE 625...

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

* IMPACTS...Abundant lightning on dry fuels will increase the 
  risk of new fire starts. Additionally, gusty outflow winds 
  will allow for new and existing fires to grow rapidly. 

* AFFECTED AREA...For the Red Flag Warning, most of Oregon Fire
  Zone 625 north of Highway 140. This includes the Warner Peak 
  Fire, though the greatest coverage of storms is likely to be 
  north and west of the Warner Peak Fire. For the Fire Weather 
  Watch, eastern portions of Oregon Fire Zone 625, including Adel 
  and the Warner Peak Fire.

* THUNDERSTORMS...Another round of isolated to scattered
  thunderstorms is expected this evening, with the greatest
  coverage expected north of a line from Chiloquin to Paisley.
  .Low pressure will move into the region late this afternoon and
  overnight, providing sufficient trigger for thunderstorm
  initiation. Isolated storms will initially start out over
  portions of northern California late this afternoon, then move
  northeastward and continue into the overnight hours. After a
  relative lull early Thursday morning, another round of isolated
  to scattered thunderstorms is expected across northern Klamath
  and Lake Counties Thursday afternoon. Despite rain with these 
  thunderstorms, lightning strikes outside of precipitation cores 
  are possible and cause for concern.

* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up 
  to 40 to 50 mph. These outflow winds can travel up to 50 
  miles away from the thunderstorm that caused it.

* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. You can find your county's emergency 
sign up form as well as links to fire restrictions at 
weather.gov/medford/wildfire. One less spark, one less wildfire.

Be sure you're signed up for your county's emergency alert system. 
Familiarize yourself with your emergency plan and make sure you 
listen to emergency services. Visit ready.gov/plan for more 
information.

A red flag warning is issued when we identify weather conditions 
that promote rapid spread of fire which may become life-threatening. 
This does not mean there is a fire. These conditions are either 
occurring now or will begin soon. It is important to have multiple 
ways to receive information from authorities. 

If you have not packed your evacuation kit yet, now is the time
to do so. This includes items like important documents and
essentials you cannot live without. Fill your vehicle's fuel
tank. Visit ready.gov/kit for more information.

          
Plan now to avoid using equipment that could cause sparks during
the period when critical weather conditions are possible. Visit
weather.gov/medford/wildfire for links to fire restrictions in
your area.

A Fire Weather Watch means that critical fire weather conditions are 
possible during the valid watch time. These conditions could promote 
the rapid spread of wildfires which could become life-threatening. 
Check weather.gov/medford for forecast updates and a possible 
upgrade of the this watch to a Red Flag Warning.

&&

$$

ORZ624-160300-
/O.EXT.KMFR.FW.W.0021.000000T0000Z-240816T0300Z/
Klamath Basin and the Fremont-Winema National Forest-
206 PM PDT Thu Aug 15 2024

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR
ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 624...

* IMPACTS...Abundant lightning on dry fuels will increase the 
  risk of new fire starts. Additionally, gusty outflow winds 
  will allow for new and existing fires to grow rapidly. 

* AFFECTED AREA...Most of Oregon Fire Zone 624 north of Highway
  140.

* THUNDERSTORMS...Another round of isolated to scattered
  thunderstorms is expected this evening, with the greatest 
  coverage expected north of a line from Chiloquin to Paisley. 
  Despite rain with these thunderstorms, lightning strikes outside
  of precipitation cores are possible and cause for concern.

* OUTFLOW WINDS...Quickly shifting winds with outflow gusts up 
  to 40 to 50 mph. These outflow winds can travel up to 50 
  miles away from the thunderstorm that caused it.

* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Follow all fire restrictions. You can find your county's emergency 
sign up form as well as links to fire restrictions at 
weather.gov/medford/wildfire. One less spark, one less wildfire.

Be sure you're signed up for your county's emergency alert system. 
Familiarize yourself with your emergency plan and make sure you 
listen to emergency services. Visit ready.gov/plan for more 
information.

A red flag warning is issued when we identify weather conditions 
that promote rapid spread of fire which may become life-threatening. 
This does not mean there is a fire. These conditions are either 
occurring now or will begin soon. It is important to have multiple 
ways to receive information from authorities.

&&

$$


Visit us at www.weather.gov/Medford
807 
WWUS86 KMFR 160122
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
622 PM PDT Thu Aug 15 2024

ORZ625-161330-
/O.CAN.KMFR.FW.W.0021.000000T0000Z-240816T0300Z/
/O.CON.KMFR.FW.A.0016.240817T2100Z-240818T0300Z/
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
622 PM PDT Thu Aug 15 2024

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW RH FOR
FIRE WEATHER ZONE 625...
...RED FLAG WARNING IS CANCELLED FOR STRONG GUSTY WIND AND LOW RH
FOR FIRE WEATHER ZONE 625...

The National Weather Service in Medford has cancelled the Red
Flag Warning. Thunderstorms have not developed today and none are
expected through the remainder of the night.

A Fire Weather Watch continues in effect from Saturday afternoon 
through Saturday evening.

* IMPACTS...Fire could spread rapidly. 

* AFFECTED AREA...Southeast Lake county including the Warner Peak
  Fire, Adel and Hart Mountain Refuge.

* WINDS AND HUMIDITY...South winds 20 to 30 mph with gusts up to
  45 mph combined with humidity 10 to 15 percent.
 
* DETAILED URL...View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you have not packed your evacuation kit yet, now is the time
to do so. This includes items like important documents and
essentials you cannot live without. Fill your vehicle's fuel
tank. Visit ready.gov/kit for more information.
          
Plan now to avoid using equipment that could cause sparks during
the period when critical weather conditions are possible. Visit
weather.gov/medford/wildfire for links to fire restrictions in
your area.

A Fire Weather Watch means that critical fire weather conditions
are possible during the valid watch time. These conditions could
promote the rapid spread of wildfires which could become life-
threatening. Check weather.gov/medford for forecast updates and a
possible upgrade of the this watch to a Red Flag Warning.

&&

$$

ORZ624-160230-
/O.CAN.KMFR.FW.W.0021.000000T0000Z-240816T0300Z/
Klamath Basin and the Fremont-Winema National Forest-
622 PM PDT Thu Aug 15 2024

...RED FLAG WARNING IS CANCELLED FOR ABUNDANT LIGHTNING ON DRY
FUELS FOR FIRE WEATHER ZONE 624...

The National Weather Service in Medford has cancelled the Red
Flag Warning for this evening. Thunderstorms have not developed 
today and none are expected through the remainder of the night.

$$

Stavish

Visit us at www.weather.gov/Medford

Nearby

Red Flag Warnings in Oregon, 2024Every red flag warning in 2024

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.