Red Flag Warning 6, NWS Reno, NV

505 
WWUS85 KREV 100904
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
204 AM PDT Fri Jul 10 2026

CAZ270-278-NVZ420-458-110400-
/O.CON.KREV.FW.W.0006.260710T2100Z-260711T0400Z/
Surprise Valley California-Eastern Lassen County-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
Northern Washoe County-
204 AM PDT Fri Jul 10 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE
WEATHER ZONES 270, 278, 420, AND 458...

* CHANGES...None.

* Affected Area...Fire Weather Zones 270, 278, 420, and 458.

* WIND...West 15 to 25 mph with gusts to 35 mph.

* Humidity...Afternoon minimums 7 to 15 percent.

* DURATION...3 to 8 hours.

* IMPACTS...The combination of gusty winds and dry fuels can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno

443 
WWUS85 KREV 110351
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
851 PM PDT Fri Jul 10 2026

CAZ270-278-NVZ420-458-110500-
/O.EXP.KREV.FW.W.0006.000000T0000Z-260711T0400Z/
Surprise Valley California-Eastern Lassen County-
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
Northern Washoe County-
851 PM PDT Fri Jul 10 2026

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR LOW
HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 270, 278, 420,
AND 458...


$$

http://weather.gov/reno

Area Forecast Discussion
National Weather Service Reno NV
218 AM PDT Thu Jul 9 2026

.KEY MESSAGES...

* Breezy winds and low humidity will pose elevated fire weather
  and recreation concerns Friday and Saturday afternoons.

* Increasing temperatures into the weekend will bring areas of
  moderate to locally major HeatRisk for Saturday.

* A monsoon-type pattern may increase the potential for showers
  and thunderstorms next week.

&&

.DISCUSSION...

High pressure currently over southern CA/AZ is projected to
migrate to the Four Corners region by Saturday. The weak low
pressure trough that was located near the west coast since Tuesday
retreats northward today before becoming re-established along the
coast for Friday-Saturday. The resulting effect of this weather
pattern will be a slight decrease in the PM breezes today, before
returning to increased gusts beyond the typical Friday- Saturday
(see the Fire Weather section below for more details). Meanwhile,
a slow warming trend will resume, with above average temperatures
peaking Saturday in the triple digits for many western NV valleys
and near 90 for Sierra communities, resulting in Moderate to
isolated Major HeatRisk for lower elevations on Saturday. While
dry conditions are expected to prevail for the next three days, a
few higher resolution guidance scenarios show increased cumulus
buildups and isolated showers (up to 10% chance) forming in far
northeast CA-northwest NV this afternoon.

Later in the weekend through early-mid next week, the pattern
begins to shift with flow aloft becoming more SW-S over the Sierra
Sunday, with potential for deeper southerly flow at times from
Monday-Wednesday. This would allow for monsoon-type moisture to
push into the eastern Sierra and parts of western NV, with
increasing instability leading to showers and t-storms mainly in
the afternoon, but also could linger overnight. While the high
pressure ridge is most likely to be centered over the central US
with a low pressure trough near or just off the west coast, the
eventual location of these features (along with upper level
disturbances rotating around the ridge's western periphery) will
determine the extent of the t-storm threat. In general, the most
favored areas for storms extend from Mono-Mineral counties into
the US-95 corridor of west central NV, with decreasing storm
chances to the north and west.

Temperatures begin a downward trend starting Sunday with highs
dipping to near mid-July averages (lower-mid 90s for western NV
valleys and lower 80s near the Sierra) for early next week. A
warmup may return later next week, but confidence remains on the
lower side with how much heat returns to the region as we get to
the second half of July. MJD

&&

.AVIATION...

* Widespread VFR across the region through this weekend with SW-W
  gusts 20-25 kts for the main terminals (except a bit lighter for
  KTRK/KTVL) this afternoon mainly between 22-04Z, down slightly
  compared to yesterday. Winds edge upward Friday-Saturday, with
  afternoon gusts 25-30 kts for the main terminals. MJD

&&

.FIRE WEATHER...

* Continued dry afternoons will prevail into this weekend, with
  minimum RH values dipping to the single digits for much of
  western NV (down to near 5% at times along/east of US-95) and
  eastern Lassen County, with 10-15% for the eastern Sierra/Tahoe
  Basin and near the OR border. Overnight humidity recovery will
  be poor for much of western NV and some midslope/thermal belt
  regions, with maximum RH values only around 20-30%.

* While winds today ease back a bit, SW-W flow increases over the
  Sierra Friday with 700 mb winds increasing to 25-30 kt. This
  would increase the potential for afternoon wind gusts pushing
  into the 30-35 mph range, producing elevated to locally critical
  conditions across parts of eastern Lassen/northern Washoe
  counties southward into the western NV Sierra Front. The
  duration of the gusty winds/low RH meeting critical levels still
  looks limited, but a few sites could see these conditions occur
  for more than 3 hours.

* For Saturday afternoon, similar wind speeds return with the
  enhanced (25-30 kt) 700 mb flow shifting northward. This would
  result in areas near the OR border having the best potential for
  gusty winds/low RH meeting critical levels for 3 or more hours,
  while a shorter duration of these combined dry and gusty
  conditions extends southward to the western NV Sierra Front. MJD

&&

.REV Watches/Warnings/Advisories...
NV...None.
CA...None.
&&