SEVERE WX : Red Flag Warning - Air Quality Alert View Alerts
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Severe Weather Alerts

Last Updated: 6:52 AM

Red Flag Warning

Areas Affected: Central Blue Mountains; Central Mountains of Oregon; Deschutes National Forest - minus Sisters Ranger District; Lower Columbia Basin of Oregon; Northern Blue Mountains of Oregon; Southern Blue and Strawberry Mountains; Wallowa District

NWS Pendleton (Northeast Oregon and Southeast Washington)

...THUNDERSTORMS WITH ABUNDANT LIGHTNING EXPECTED TODAY... .An upper level storm system will move across the region today. Scattered showers and thunderstorms are expected to develop. In addition to the lightning threat, a few strong to severe storms will be possible with gusty winds and hail. ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR611, OR640, OR641, WA641, OR642, OR643, OR644, OR645, WA643, AND WA645......

* AFFECTED AREA...Fire Weather Zones 611 Deschutes National Forest -minus Sisters Ranger District, 640 Central Mountains of Oregon, 641 Lower Columbia Basin of Oregon, 641 Lower Columbia Basin of Washington, 642 Southern Blue and Strawberry Mountains, 643 Northern Blue Mountains of Oregon, 643 Blue Mountains of Washington, 644 Central Blue Mountains, 645 Wallowa District and 645 Asotin County.

* IMPACTS...The potential for abundant lightning combined with very dry fuels may result in new fire starts. Gusty thunderstorm winds may also promote increased fire spread.

* THUNDERSTORMS...Scattered thunderstorms with LAL`s of 3 to 4.

* OUTFLOW WINDS...Thunderstorms will have the potential to produce wind gusts of 30 to 50 mph.

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of thunderstorms with abundant lightning and dry fuels can contribute to new fire starts and gusty thunderstorm winds can promote extreme fire behavior.


Air Quality Alert

Areas Affected: Central Douglas County; Central and Eastern Lake County; Curry County Coast; Eastern Curry County and Josephine County; Eastern Douglas County Foothills; 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 4 PM PDT FRIDAY... Oregon Department of Environmental Quality has issued an Air Pollution Advisory...in effect until Friday afternoon.

* WHAT...High concentration of smoke particulates from the numerous wildfires in the area.

* WHERE...Curry, Douglas, Josephine, Jackson, Lake, and Klamath Counties.

* WHEN...Until Friday evening.

* IMPACTS...Smoke can irritate the eyes, lungs and worsen some medical conditions. People most at risk to adverse health effects include infants, young children, people with heart or lung disease, older adults and pregnant women.

* ADDITIONAL DETAILS...Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog, DEQs Air Quality Index, or by downloading the free OregonAIR app on your smartphone. Things you can do to protect yourself and your family when smoke levels are high:

* Stay inside if possible. Keep windows and doors closed.

* Avoid strenuous outdoor activity.

* Use high efficiency particulate air (HEPA) filters in indoor ventilation systems or portable air purifiers.

* Be aware of smoke in your area and avoid places with the highest levels.

* If you have heart or lung disease or asthma, follow your healthcare providers advice. 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

NWS Medford (Southwest Oregon and Northern California)

...STRONG GUSTY WINDS AND LOW HUMIDITY, THUNDERSTORMS, AND SHIFTING WINDS ON THURSDAY... .A complex scenario is expected over the next 24-36 hours. The region will quickly transition from hot, very dry, windy and unstable conditions through early Thursday afternoon to cooler conditions with improving humidities, strong shifting winds and thunderstorm potential as an upper trough passes through the area Thursday afternoon and evening. ...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 624... ...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING FOR STRONG GUSTY WINDS AND LOW RH AND HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 624...

* Impacts: Strong, gusty wind with low relative humidity and critically dry vegetation will greatly increase the spread potential of any new and existing fires. Very dry and unstable conditions today will support extreme fire behavior. Plume domination is possible with locally-generated erratic and gusty winds and spotting could be problematic. Lightning and high fire danger will likely result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible.

* Affected area: In South Central OR...Fire Weather Zone 624.

* Wind: On Thursday, southwest 10 to 15 mph shifting to west then northwest and gusting up to 20 to 25 mph during the afternoon and evening hours. Very strong outflow winds are possible with any thunderstorms on Thursday.

* Humidity: As low as 14 percent.

* Additional Information: Strong gusty winds and low humidities are expected during the early afternoon hours on Thursday. Humidities will improve later in the afternoon and evening as moisture increases and the concern transitions to thunderstorms with strong gusty, erratic winds.

* Thunderstorms: Isolated to scattered thunderstorms with the focus of activity expected across northern and eastern portions of the zone, including over the Bootleg Fire.

* View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don`t want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. &&


Red Flag Warning

Areas Affected: South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties

NWS Medford (Southwest Oregon and Northern California)

...STRONG GUSTY WINDS AND LOW HUMIDITY, THUNDERSTORMS, AND SHIFTING WINDS ON THURSDAY... .A complex scenario is expected over the next 24-36 hours. The region will quickly transition from hot, very dry, windy and unstable conditions through early Thursday afternoon to cooler conditions with improving humidities, strong shifting winds and thunderstorm potential as an upper trough passes through the area Thursday afternoon and evening. ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM PDT THURSDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625...

* Impacts: Lightning and high fire danger will likely result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible.

* Affected area: In South Central OR...Fire Weather Zone 625.

* Wind: On Thursday, southwest 10 to 15 mph shifting to west then northwest 15 to 20 mph and gusting up to 25 to 30 mph during the afternoon and evening hours. Very strong outflow winds are possible with any thunderstorms on Thursday.

* Thunderstorms: Isolated to scattered thunderstorms, with the focus of activity expected across northern and western portions of the zone.

* Humidity: 10 to 20 percent.

* Additional Information: Strong gusty winds and low humidities are expected during the early afternoon hours on Thursday. Humidities will improve later in the afternoon and evening as moisture increases and the concern transitions to thunderstorms with strong gusty, erratic winds.

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