textproduct: Reno

KEY MESSAGES

* Warm and dry conditions with lighter winds this afternoon.

* Gusty winds and dry conditions may elevate fire concerns Monday and especially Tuesday.

* Precipitation chances return for the second half of next week with cooler and breezy conditions persisting.

DISCUSSION

Areas of patchy fog are expected again this morning across the Martis Valley/Truckee area through about sunrise before quickly dissipating as conditions continue to trend drier today. Aside from shallow afternoon cumulus development, mostly sunny conditions will prevail today with lighter winds areawide.

As an area of low pressure builds off the Pacific Northwest, a breezy pattern will begin to develop for much of the upcoming week with typical afternoon breezes Monday progressing to gusty conditions by Tuesday. Dry conditions combined with SW gusts up to 30-40 mph may yield critical fire weather conditions for portions of NE California and NW Nevada. In addition, aviation impacts from increased turbulence/wind shear and outdoor recreational impacts from choppy lake waters are possible.

Cooler conditions will also prevail by mid-week with about 10 degrees of cooling from Monday to Wednesday with highs only reaching into the upper 70s mid-week. Conditions will remain breezy from mid-week through the weekend but fire weather impacts may begin to be mitigated as moisture begins to filter into the region. Overall shower chances will increase across far NE California and NW Nevada by Thursday with 15-30% chances for light showers into the start of the weekend. Fuentes

AVIATION

VFR conditions will prevail for W.Nevada and E.Sierra terminals outside of areas of patchy fog at KTRK though 15z this morning.

Winds will be lighter this afternoon with afternoon gusts of around 15 knots. Typical afternoon gusts of 20-25 kts return by Monday, but increasing chances for gusty winds, mountain wave turbulence, and LLWS is expected on Tuesday as a low pressure approaches the region. Fuentes

FIRE WEATHER

Elevated to critical fire weather conditions return early this week as winds start to slowly increase with the approach of another upper level trough.

On Monday, poor RH recovery is expected across portions of the W.Nevada Basin and Range with elevated to near critical conditions expected for portions of northern Washoe, the Surprise Valley and eastern Lassen county as RH drops into the teens while afternoon winds gust to 20-30 mph.

Tuesday will see the best potential for widespread critical fire weather concerns as conditions deteriorate in much of the same region, but also extending southward into the Sierra Front. Southwesterly wind gusts in the afternoon could see gusts of 30-40 mph with min RH generally in the 10-20% range for most areas across W.Nevada and NE California.

By Wednesday, winds only diminish slightly but min RH continues to increase, reducing our risk for critical conditions. Breezy conditions persist through the rest of the week, but we will have increasing RH with shower chances which may help to further limit fire risk. HC/Fuentes

REV Watches/Warnings/Advisories

NV...None. CA...None.