Special Weather Statement

National Weather Service RENO NV
1100 AM PDT Sat Jul 24 2021

CAZ070>073-NVZ001>005-251200-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Western Nevada Basin and Range including Pyramid Lake-
Northern Washoe County-
Including the cities of Cedarville, Eagleville, Fort Bidwell,
Portola, Susanville, Westwood, Sierraville, Loyalton,
South Lake Tahoe, Tahoe City, Truckee, Markleeville, Bridgeport,
Coleville, Lee Vining, Mammoth Lakes, Hawthorne, Yerington,
Smith Valley, Mina, Schurz, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
1100 AM PDT Sat Jul 24 2021

...AIR QUALITY IMPACTS FROM WILDFIRE SMOKE...

Smoke from the Tamarack, Dixie, Fly, and Bootleg wildfires will
continue to bring smoke and hazy skies along with poor air
quality to the region. The worst conditions remain immediately
downwind of fires. This includes, but is not limited to:

- Lake Almanor into Susanville and the Honey Lake Basin
- Reno, Minden, Carson City, Carson Valley, and Washoe Valley
- Far northern California and Nevada near the Oregon Border

Visibility reductions below 3 miles have occurred across multiple
locations along western Nevada and the Sierra today with many air
quality sensors reporting unhealthy to hazardous conditions.

Light winds today will result in persistent smoke and haze with
substantially degraded air quality. Some evening westerly winds
could reduce smoke for a few hours in portions of western Nevada.
However, northwest to north winds overnight will push ongoing smoke
plumes from fires in Plumas County (Dixie and Fly fires) back into
western Nevada and the Tahoe Basin.

Bottom line: what little (if any) clearing we get this afternoon
or evening will be the only improvement in smoke/haze and air
quality through the next 24 hours.

For the latest air quality information, please visit fire.airnow.gov
or check with your county air quality division. If you happen to
be in an area with poor air quality, try to limit outdoor activity
as much as possible.

$$

http://weather.gov/reno

National Weather Service RENO NV
1150 AM PDT Sun Jul 25 2021

CAZ070>073-NVZ001>005-261300-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Western Nevada Basin and Range including Pyramid Lake-
Northern Washoe County-
Including the cities of Cedarville, Eagleville, Fort Bidwell,
Portola, Susanville, Westwood, Sierraville, Loyalton,
South Lake Tahoe, Tahoe City, Truckee, Markleeville, Bridgeport,
Coleville, Lee Vining, Mammoth Lakes, Hawthorne, Yerington,
Smith Valley, Mina, Schurz, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
1150 AM PDT Sun Jul 25 2021

...Smoke Impacts to Continue as Thunderstorm Risks Increase...

Smoke:

* Widespread thick smoke, mainly from the Dixie Fire, will
continue to impact the region at least through Monday, and
possibly Tuesday. There will be periods late in the day today
and Monday where air quality could improve somewhat around Reno-
Tahoe and the Eastern Sierra. However for the most part you
should expect poor air quality to persist, especially at night
and in the mornings.

* Limit the intensity and duration of outdoor activities. Poor air
quality could result in postponed or cancelled outdoor events.

Thunderstorms:

* A rather solid monsoon moisture surge will bring increasing
thunderstorm chances to the area today through much of the
coming week. Specifically for today the best odds are in the
Eastern Sierra between Tahoe and Mammoth, with thunderstorms
possible Monday, Tuesday, and Wednesday afternoons over more of
the region including Reno-Tahoe, Fallon, and Susanville.

* There are also indications of a cluster of pre-dawn
thunderstorms moving through early Tuesday morning, which given
the unusual time of day, could catch many people off-guard.

* A significant concern with these storms is the potential for
heavy rainfall and flash flooding on recent burn scars such as
the Beckwourth Complex and ongoing fires such as the Tamarack
Fire. It only takes 5-10 minutes of heavy rains to result in
debris flows on these burn areas. Additional impacts include
outflow winds to 50 mph, lightning with new fire starts outside
storm cores, and small hail.

$$