SEVERE WX : Red Flag Warning View Alerts

Severe Weather Alerts

Last Updated: 10:44 PM

Red Flag Warning

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

NWS Pendleton (Northeast Oregon and Southeast Washington)

...SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING AND AGAIN ON WEDNESDAY... Low pressure system off the coast with unstable southerly flow over the region. Scattered thunderstorms are expected over central and northeast Oregon during the afternoon and evening hours with little if any thunderstorm activity overnight. ...RED FLAG WARNING NOW IN EFFECT UNTIL 11 PM PDT WEDNESDAY FOR ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES OR611 AND OR640...

* AFFECTED AREA...Fire Weather Zones 611 Deschutes National Forest -minus Sisters Ranger District and 640 Central Mountains of Oregon.

* IMPACTS...Numerous lightning starts will be possible owing to the potential for scattered storms after a period of hot and dry conditions. Additionally, gusty winds and low relative humidity values will prevail through Wednesday. Extremely hot temperatures and low RH conditions will follow this weekend into early next week.

* THUNDERSTORMS...LAL of 3, storms capable of LAL 4 possible.

* OUTFLOW WINDS...Gusts of 25 to 30 mph possible with gusts to 45 mph in stronger thunderstorms.

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.


Red Flag Warning

Areas Affected: Central Siskiyou County Including Shasta Valley

NWS Medford (Southwest Oregon and Northern California)

...Abundant Lightning Expected Today and Wednesday Afternoons and Evenings... .Low pressure centered southwest of the area will send a series of disturbances into the area from the southeast. Scattered thunderstorms on dry fuels are expected over much of the forecast area this afternoon and evening. Thunderstorm activity on Wednesday will be more isolated, but scattered activity is expected over portions of Fire Weather Zones 280 in California and 621 in the Siskiyous. While isolated storms will produce wetting rainfall, significant lightning on dry fuels is expected. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280... 281...621 AND 622...

* 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 Northern CA Fire Zone....281. In Southwest OR Fire Zone....622.

* Wind: Gusty and erratic wind gusts of 20 to 40 mph are possible in and near these thunderstorms.

* Thunderstorms: Isolated dry thunderstorms are possible, but most are likely to produce at least some rainfall.

* Additional Information: Additional lightning is anticipated in Northern California Thursday afternoon and evening which might result in the need for additional watches or warnings.

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


Red Flag Warning

Areas Affected: Eastern Rogue Valley

NWS Medford (Southwest Oregon and Northern California)

...Abundant Lightning Expected Today and Wednesday Afternoons and Evenings... .Low pressure centered southwest of the area will send a series of disturbances into the area from the southeast. Scattered thunderstorms on dry fuels are expected over much of the forecast area this afternoon and evening. Thunderstorm activity on Wednesday will be more isolated, but scattered activity is expected over portions of Fire Weather Zones 280 in California and 621 in the Siskiyous. While isolated storms will produce wetting rainfall, significant lightning on dry fuels is expected. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280... 281...621 AND 622...

* 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 Northern CA Fire Zone....281. In Southwest OR Fire Zone....622.

* Wind: Gusty and erratic wind gusts of 20 to 40 mph are possible in and near these thunderstorms.

* Thunderstorms: Isolated dry thunderstorms are possible, but most are likely to produce at least some rainfall.

* Additional Information: Additional lightning is anticipated in Northern California Thursday afternoon and evening which might result in the need for additional watches or warnings.

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


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

NWS Medford (Southwest Oregon and Northern California)

...Abundant Lightning Expected Today and Wednesday Afternoons and Evenings... .Low pressure centered southwest of the area will send a series of disturbances into the area from the southeast. Scattered thunderstorms on dry fuels are expected over much of the forecast area this afternoon and evening. Thunderstorm activity on Wednesday will be more isolated, but scattered activity is expected over portions of Fire Weather Zones 280 in California and 621 in the Siskiyous. While isolated storms will produce wetting rainfall, significant lightning on dry fuels is expected. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 284... 623...624 AND 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 Northern CA Fire Zones...284...285. In South Central OR Fire Zones...624...625. In Southwest OR Fire Zone....623.

* Wind: Gusty and erratic wind gusts of 30 to as high as 55 mph are possible in and near these thunderstorms.

* Thunderstorms: Isolated dry thunderstorms are possible, but most are likely to produce at least some rainfall.

* Additional Information: Additional lightning is anticipated in Northern California Thursday afternoon and evening which might result in the need for additional watches or warnings.

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


Red Flag Warning

Areas Affected: Modoc County Except for the Surprise Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta

NWS Medford (Southwest Oregon and Northern California)

...Abundant Lightning Expected Today and Wednesday Afternoons and Evenings... .Low pressure centered southwest of the area will send a series of disturbances into the area from the southeast. Scattered thunderstorms on dry fuels are expected over much of the forecast area this afternoon and evening. Thunderstorm activity on Wednesday will be more isolated, but scattered activity is expected over portions of Fire Weather Zones 280 in California and 621 in the Siskiyous. While isolated storms will produce wetting rainfall, significant lightning on dry fuels is expected. ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 284... 623...624 AND 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 Northern CA Fire Zones...284...285. In South Central OR Fire Zones...624...625. In Southwest OR Fire Zone....623.

* Wind: Gusty and erratic wind gusts of 30 to as high as 55 mph are possible in and near these thunderstorms.

* Thunderstorms: Isolated dry thunderstorms are possible, but most are likely to produce at least some rainfall.

* Additional Information: Additional lightning is anticipated in Northern California Thursday afternoon and evening which might result in the need for additional watches or warnings.

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