Alert archive / Oregon / Red Flag Warnings in 2026

Red Flag Warning 4, NWS Medford, OR

July 4, 2026Harney County, Klamath County, Lake County, Oregon

NWS Medford, OR issued this red flag warning at Jul 4, 2026, 2:36 PM PDT for Harney County, Klamath County, Lake County, Oregon. It took effect at Jul 5, 2026, 3:00 PM PDT. It was in force for 6 hr. 1 report 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
Jul 4, 2026, 2:36 PM PDT (21:36 UTC)
In effect from
Jul 5, 2026, 3:00 PM PDT
Expired
Jul 5, 2026, 9:00 PM PDT
In force
6 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 21:36 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
Jul 5, 5:40 PM PDTTSTM WND GST 3838 Wsw Fields, ORMesonet station OD111 10.9 N Catnip Mountain (ODOT).

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

The nearest sounding before it

Salem/Mcnary, OR (KSLE), launched 12:00Z, 9.6 hours before the alert went out and 314 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, Salem/Mcnary, OR at 12:00Z on 2026-07-04Temperature 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, Salem/Mcnary, OR at 12:00Z on 2026-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
656 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

070 
WWUS86 KMFR 042136
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
236 PM PDT Sat Jul 4 2026


ORZ624-625-051315-
/O.NEW.KMFR.FW.W.0004.260705T2200Z-260706T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
236 PM PDT Sat Jul 4 2026

...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM PDT SUNDAY 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 3 PM to 9 PM PDT Sunday. 

* IMPACTS...Abundant lightning on dry fuels will likely create 
  new ignitions across the region. Any fires that develop could 
  spread rapidly. Numerous new fire starts could overwhelm initial
  attack. 

* AFFECTED AREA...Eastern fire Weather zone 624 and southern and
  central fire weather zone 625, including Lakeview, Summer Lake,
  Bly, Alkali Lake, portions of Fremont-Winema National Forest and
  the Hart Mountain Antelope Refuge. 
 
* THUNDERSTORMS...Moving north and northeast around 20 to 25 mph.
  Storm mode will be a mix of dry and wet thunderstorms.

* OUTFLOW WINDS...Isolated gusts up to 45 mph.

* DETAILED URL...View the hazard area in detail at 
  https://weather.gov/wrh/hazards?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
3 follow-up statements
129 
WWUS86 KMFR 051021
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
321 AM PDT Sun Jul 5 2026


ORZ624-625-052230-
/O.CON.KMFR.FW.W.0004.260705T2200Z-260706T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
321 AM PDT Sun Jul 5 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONES 624 AND 625...

* IMPACTS...Abundant lightning on dry fuels will likely create 
  new ignitions across the region. Any fires that develop could 
  spread rapidly. Numerous new fire starts could overwhelm 
  initial attack. 

* AFFECTED AREA...Eastern fire Weather zone 624 and southern 
  and central fire weather zone 625, including Lakeview, Summer 
  Lake, Bly, Alkali Lake, portions of Fremont-Winema National 
  Forest and the Hart Mountain Antelope Refuge. 

* THUNDERSTORMS...Moving north and northeast around 20 to 25 
  mph. Storm mode will be a mix of dry and wet thunderstorms. 

* OUTFLOW WINDS...Isolated gusts up to 45 mph.

* DETAILED URL...View the hazard area in detail at 
  https://weather.gov/wrh/hazards?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
641 
WWUS86 KMFR 052020
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
120 PM PDT Sun Jul 5 2026


ORZ624-625-061345-
/O.NEW.KMFR.FW.W.0005.260706T2100Z-260707T0300Z/
/O.CON.KMFR.FW.W.0004.260705T2200Z-260706T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
120 PM PDT Sun Jul 5 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR
FIRE WEATHER ZONES 624 AND 625...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT MONDAY 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 2 PM to 8 PM PDT Monday. 

* IMPACTS...Abundant lightning on dry fuels will likely create 
  new ignitions across the region. Any fires that develop could 
  spread rapidly. Numerous new fire starts could overwhelm 
  initial attack. 

* AFFECTED AREA...For today, eastern Fire Weather Zone 624 and
  southern and central Fire Weather Zone 625, or eastern Klamath
  and southern and central Lake counties. For Monday, northern
  Fire Weather Zones 624 and 625. 

* THUNDERSTORMS...Moving north and northeast around 20 to 25 
  mph. Storm mode will be a mix of dry and wet thunderstorms.

* OUTFLOW WINDS...Isolated gusts up to 45 mph.

* DETAILED URL...View the hazard area in detail at 
  https://weather.gov/wrh/hazards?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
853 
WWUS86 KMFR 060417
RFWMFR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
917 PM PDT Sun Jul 5 2026

ORZ624-625-061630-
/O.EXP.KMFR.FW.W.0004.000000T0000Z-260706T0400Z/
/O.NEW.KMFR.FW.W.0006.260706T0417Z-260706T0600Z/
/O.CON.KMFR.FW.W.0005.260706T2100Z-260707T0300Z/
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
917 PM PDT Sun Jul 5 2026

...RED FLAG WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR
ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND
625...
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT
MONDAY 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 until 11 PM PDT this evening. 

* IMPACTS...Abundant lightning on dry fuels will likely create 
  new ignitions across the region. Any fires that develop could 
  spread rapidly. Numerous new fire starts could overwhelm 
  initial attack. 

* AFFECTED AREA...For this evening, central and eastern Fire 
  Weather Zone 624 and southern and central Fire Weather Zone 625,
  or eastern Klamath and southern and central Lake counties. For 
  Monday, northern Fire Weather Zones 624 and 625.

* THUNDERSTORMS...Moving north and northeast around 20 to 25 
  mph. Storm mode will be a mix of dry and wet thunderstorms.

* OUTFLOW WINDS...Isolated gusts up to 45 mph.

* DETAILED URL...View the hazard area in detail at 
  https://weather.gov/wrh/hazards?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

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 Jul 4, 1:20 PM PDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jul 4, 1:20 PM PDT, 1 hour 16 minutes before
Area Forecast Discussion
National Weather Service Medford OR
120 PM PDT Sat Jul 4 2026

.KEY POINTS...

* Low impact weather expected for the holiday today with dry
  conditions and high temperatures around 5 to 10 degrees above
  normal.

* Sunday/Monday - Slight chance thunderstorms across northern
  California and East Side, most likely across Lake/Modoc counties.
  Some potential for overnight thunderstorms in same areas.

* Wednesday - dry front raises potential fire weather concerns for
  gusty winds/low RH east of Cascades.

* Temperatures hover around 5 to 10 degrees above normal through
  Tuesday, subtle cooling trend to near normal values for latter
  half of the week.

&&

.DISCUSSION...Typical summer conditions will prevail for the July
4th holiday activities today. Skies are clear across the region
with some lingering marine stratus along the coast that is
gradually clearing. It'll feel quite warm today compared to the
recent mild temperatures we've experienced across the region. High
temperatures will peak around 5 to 10 degrees above normal today,
resulting in mid 90s for the West Side and upper 80s/low 90s
across the East. Temperatures will be a little cooler in the
Umpqua Basin/Roseburg area due to the cloud cover this morning.
There will be some cumulus cloud development this afternoon,
primarily over the higher terrain, but dry conditions will prevail
today. Skies are expected to remain clear through the evening for
those firework celebrations. The exception will be along the
coast where marine stratus will return this evening, possibly as
early as 8 pm but more likely around 10 pm.

High pressure has developed over the Desert SW and broad low
pressure persists to the north of the region. This leaves our area
under southwest flow for the next few days. Additionally, some
remnant energy and moisture will get swept up into the mid-
latitudes today, moving north-northeastward into central
California. We'll be on the periphery of that moisture and energy
and models remain steadfast in showing enough moisture/instability
clipping the southern/eastern portions of the region, resulting in a
slight chance of thunderstorms across northern California and east
of the Cascades Sunday into Monday. Current hi-res guidance shows
the best chances for thunderstorms to be over Modoc/Lake Counties,
with some lesser chances across western/central Siskiyou County.
Storms could continue into the overnight hours over Lake/Modoc
Counties before another wave swings through Monday afternoon and
continues the slight chance potential. By Tuesday, the best
moisture/instability shifts northward and we could see some
lingering chances across far northern Klamath/Lake Counties, but the
bulk of the activity should be out of our forecast area.

The upper level pattern transitions on Wednesday. High pressure over
the Desert SW retrogrades some and low pressure over the eastern
Pacific will send a few shortwaves through the PacNW during the
latter half of the week. This will put the region under westerly
flow and a more stable air mass, so at this time, it looks like
thunderstorms drop out of the forecast by Wednesday. There would
likely be a deep marine push Tuesday night ahead of the first
shortwave/dry front and we'll see a subtle cooling trend on
Wednesday when high temperatures reach around seasonal normals (mid-
upper 80s for West Side/low-mid 80s for East Side). This would also
likely bring some enhance afternoon/evening breezes, which could
bring some heightened fire weather concerns east of the Cascades.
Rinse and repeat for the remainder of the week, with another dry
front possible on Friday.

&&

.AVIATION...04/18Z TAFs...IFR/MFR marine layer low clouds extend
into the coastal valleys and the Umpqua Basin, but will burn back to
the coast by 20-21 UTC. Meanwhile, IFR/LIFR conditions along the
south coast near Brookings will persist a bit longer, perhaps even
lingering through today and into tonight. A similar scenario is
expected later this evening into Sunday morning, but not as
extensive. Otherwise, VFR continues across the remainder of the
area, with widespread breezy afternoon winds, and a few afternoon
cumulus buildups expected over northern California.

&&

.MARINE...Updated 200 AM PDT Saturday, July 4, 2026...Gusty north
winds will persist into early next week, maintaining steep to very
steep seas. Advisory level winds will persist south of Cape Blanco
and maintain steep seas south of Port Orford this morning.
Conditions worsen this afternoon into Sunday as north winds
increase. Steep seas will return to areas north of Cape Blanco with
very steep seas developing south of Cape Blanco and beyond 5 nm from
shore. There could be a brief period of gale force gusts this
afternoon south of Gold Beach between 10 and 30 nm from shore. These
conditions are likely to persist through Sunday evening, then
improve Monday into Wednesday as north winds weaken.

&&

.FIRE WEATHER...Updated 1200 PM PDT Saturday, July 4, 2026...There
is a slight chance of afternoon and evening thunderstorms Sunday
east of the Cascades, and Monday along and east of the Cascades and
over the Klamaths and Siskiyous. There is a possibility that some of
these showers and an isolated thunderstorm or two linger on into
Sunday night/early Monday morning over Modoc and Lake counties.
There should be enough moisture to produce rain within the cores of
these thunderstorms, but a few more high based storms, or those
along the periphery of the drier air, could produce very little or
no rain at the surface. Along with lightning, gusty and erratic
winds will be a concern for any storms that develop (especially the
drier ones).

Otherwise, high temperatures remain around 5 to 10 degrees above
normal, and afternoon breezes remain typical to slightly enhanced
during the next week. This will result in very dry conditions,
generally just shy of critical wind and humidity thresholds,
especially Tuesday and Wednesday as a dry cold front passes through
the region. Another dry frontal passage is possible next weekend.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...CA...None.

PACIFIC COASTAL WATERS...Small Craft Advisory until 2 AM PDT Monday
     for PZZ356.

Small Craft Advisory until 2 AM PDT Monday for PZZ350-370.

     Hazardous Seas Warning until 2 AM PDT Monday for PZZ356-376.

     Small Craft Advisory until 2 PM PDT this afternoon for PZZ376.

&&

MNF/BPN

Nearby

Red Flag Warnings in Oregon, 2026Every red flag warning in 2026

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.