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Severe Weather Alerts

Last Updated: 4:32 PM

Red Flag Warning

Areas Affected: Central Mountains of Oregon; Deschutes National Forest - minus Sisters Ranger District; East Slopes of Central Oregon Cascades

NWS Pendleton (Northeast Oregon and Southeast Washington)

...SCATTERED THUNDERSTORMS TODAY THROUGH FRIDAY ACROSS CENTRAL AND NORTHEAST OREGON AND SOUTHEAST WASHINGTON... .A low pressure system moving across the region will bring scattered thunderstorms to central and northeastern Oregon and southeast Washington today through Friday. Some of the storms will have limited rainfall. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR ABUNDANT LIGHTNING AND GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 610, 611 AND 640...

* AFFECTED AREA...In Oregon...Fire weather zones 610...611... and 640 covering the east slopes of the Oregon Cascades, Central Oregon, and the Prineville District.

* TIMING...Scattered thunderstorms developing this afternoon. Storms will continue this evening then diminish later tonight.

* LIGHTNING ACTIVITY...3.

* PRECIPITATION...A tenth of an inch or less with most storms.

* IMPACTS...Any fires that develop will likely spread rapidly.

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.


Air Quality Alert

Areas Affected: Eastern Curry County and Josephine County; Jackson County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Siskiyou Mountains and Southern Oregon Cascades; South Central Oregon Cascades

NWS Medford (Southwest Oregon and Northern California)

...AIR QUALITY ALERT IN EFFECT UNTIL 5 PM PDT SATURDAY... Oregon Department of Environmental Quality has issued an Air Pollution Advisory...in effect until 5 PM PDT Saturday. Wildfires burning in the region combined with forecast conditions will cause air quality levels to fluctuate and could be unhealthy or even hazardous at times. Unhealthy to very unhealthy conditions are likely today and Friday and even into the weekend with only brief or temporary improvements. Pollutants in smoke can cause burning eyes...runny nose...aggravate heart and lung diseases...and aggravate other serious health problems.Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. For additional information...please visit the web site at http://www.oregon.gov/deq


Red Flag Warning

Areas Affected: Klamath Basin and the Fremont-Winema National Forest; South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties; Southern Oregon Cascades; Umpqua National Forest

NWS Medford (Southwest Oregon and Northern California)

...Isolated to scattered thunderstorms expected today for eastern Fire Weather Zone 617, northern portions of Fire Weather Zones 623 and 624, and northern and eastern portions of Fire Weather Zone 625... .Upper level low pressure approaching from the west is expected to result in another round of isolated to scattered thunderstorms across portions of southwest Oregon. The best potential for scattered thunderstorms will be in the northern portions of Klamath and Lake counties. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 617... 623...624...AND 625...

* Impacts: Isolated to scattered thunderstorms combined with very dry vegetation are likely to result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite rainfall with some of the thunderstorms, initial attack resources could be overwhelmed and holdover fires are possible.

* Affected area: In Fire Weather Zone 617, areas east of Toketee Falls and the Willamette National Forest portion. In Fire Weather Zone 623, areas east of Union Creek and from Crater Lake National Park northward. In Fire Weather Zone 624, areas north of Chiloquin and Sprague River, including Chemult. This includes the Timber Crater 6 and 10 fires. In Fire Weather Zone 625, areas north and east of Paisley, including Summer Lake and Fort Rock, and also areas from Hart Mountain Wildlife Refuge eastward.

* Thunderstorms: Scattered thunderstorms are expected from Crater and Diamond Lakes northeastward and across northern Klamath and Lake counties. Confidence in thunderstorms occuring in that area is high. Isolated thunderstorms are expected as far south as just north of Sprague River, and for some areas east of Summer Lake in Lake and Harney counties. Confidence in thunderstorms occuring in that area is moderate.

* View the hazard area in detail at https://www.wrh.noaa.gov/mfr/hazard


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