Aggregator

...DRY AND BREEZY CONDITIONS EXPECTED IN THE LEE OF THE CASCADES ON SUNDAY AFTERNOON AND EVENING... Breezy winds, hot temperatures, and low relative humidity values will occur over the area on Sunday afternoon and evening. This will result in an elevated fire risk on existing or new fires. The National Weather Service in Spokane has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Sunday afternoon through Sunday evening. * Affected Area: Fire Weather Zone 705 Foothills of Central Washington Cascades (Zone 705) and Fire Weather Zone 706 Waterville Plateau (Zone 706). * Winds: West 10 to 20 mph with gusts up to 35 mph. * Relative Humidities: 10 to 18 percent. * Impacts: The combination of gusty winds, low relative humidity values, hot temperatures, and dried fuels could lead to rapid fire spread on existing or new fires.

* WHAT...Hot conditions with temperatures 95-105 degrees expected. This will pose a moderate to locally major risk of heat-related illness. * WHERE...Portions of central, north central, and northeast Oregon and central, south central, and southeast Washington. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions with temperatures 95-105 degrees expected. This will pose a moderate to locally major risk of heat-related illness. * WHERE...Portions of central, north central, and northeast Oregon and central, south central, and southeast Washington. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY... A threat of isolated thunderstorms over southeast Oregon this weekend brings a risk of dry lightning startups. Breezy winds will also develop through the Cascade gaps Sunday, and will coincide with critically low RHs in the afternoon. The National Weather Service in Pendleton has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Sunday afternoon through Sunday evening. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...New fire starts with cloud-to-ground lightning should be expected with any storms that develop. Gusty outflow winds will threaten fires with rapid growth.

...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY... A threat of isolated thunderstorms over southeast Oregon this weekend brings a risk of dry lightning startups. Breezy winds will also develop through the Cascade gaps Sunday, and will coincide with critically low RHs in the afternoon. * AFFECTED AREA...Fire Weather Zones 642 Southern Blue and Strawberry Mountains and 644 Central Blue Mountains. * IMPACTS...New fire starts with cloud-to-ground lightning should be expected with any storms that develop. Gusty outflow winds will threaten fires with rapid growth. * THUNDERSTORMS...Any storms that develop will initially have little to no rainfall. * OUTFLOW WINDS...Gusts of 25 to 35 mph possible.

...CHANCE OF THUNDERSTORMS OVER SOUTHEAST OREGON THIS WEEKEND... ...DRY AND BREEZY CONDITIONS IN THE COLUMBIA BASIN AND KITTITAS VALLEY... A threat of isolated thunderstorms over southeast Oregon this weekend brings a risk of dry lightning startups. Breezy winds will also develop through the Cascade gaps Sunday, and will coincide with critically low RHs in the afternoon. The National Weather Service in Pendleton has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Sunday afternoon through Sunday evening. * AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of Oregon, 690 Kittitas Valley and 691 Lower Columbia Basin. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...New fire starts with cloud-to-ground lightning should be expected with any storms that develop. Gusty outflow winds will threaten fires with rapid growth.

* WHAT...Hot conditions during the day for the valleys. Highs 95 to 105. Overnight lows will be in the upper 50s and 60s. * WHERE...Central and eastern Washington and parts of the Idaho Panhandle including the Okanogan Valley, Wenatchee and Waterville Plateau, Columbia Basin, Washington Palouse, Spokane and Coeur d'Alene area, the Lewiston Clarkston Valley and Camas Prairie. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

* WHAT...Hot conditions during the day for the valleys. Highs 93 to 100. Overnight lows will be in the upper 50s and 60s. * WHERE...The Cascade valleys, the valleys of the Okanogan Highlands and northeast Washington, the north Idaho Panhandle and the Idaho Palouse. * WHEN...Until 10 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... ...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... * IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For the Red Flag Warning for today, portions of the Fremont- Winema National Forest in Oregon Fire zone 624, Fire weather zone 625 in central and eastern Lake County. For the Red Flag Warning for Saturday, critical conditions due to gusty winds and low RH are expected north of a line from Chiloquin to Paisley while abundant lightning on dry fuels is expected south. * WIND...Southwest 15 to 25 with gusting 25 and 35 mph. * HUMIDITY...7 to 12 percent. * THUNDERSTORMS...Isolated to scattered high based storms that are likely to have very little to no precipitation, especially outside of storm cores. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. * ADDITIONAL INFORMATION...The best chance for storms will be Saturday afternoon into Saturday evening, then again Sunday afternoon into Sunday evening. Isolated thunderstorms are possible late Saturday night into Sunday morning. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... ...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... * IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For the Red Flag Warning for today, portions of the Fremont- Winema National Forest in Oregon Fire zone 624, Fire weather zone 625 in central and eastern Lake County. For the Red Flag Warning for Saturday, critical conditions due to gusty winds and low RH are expected north of a line from Chiloquin to Paisley while abundant lightning on dry fuels is expected south. * WIND...Southwest 15 to 25 with gusting 25 and 35 mph. * HUMIDITY...7 to 12 percent. * THUNDERSTORMS...Isolated to scattered high based storms that are likely to have very little to no precipitation, especially outside of storm cores. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. * ADDITIONAL INFORMATION...The best chance for storms will be Saturday afternoon into Saturday evening, then again Sunday afternoon into Sunday evening. Isolated thunderstorms are possible late Saturday night into Sunday morning. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR STRONG GUSTY WIND AND LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... ...FIRE WEATHER WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... * IMPACTS...Given the recent prolonged stretch of very hot and very dry conditions, lightning efficiency will be high to very high for fire starts. Any fires that develop will likely spread rapidly. * AFFECTED AREA...For the Red Flag Warning for today, portions of the Fremont- Winema National Forest in Oregon Fire zone 624, Fire weather zone 625 in central and eastern Lake County. For the Red Flag Warning for Saturday, critical conditions due to gusty winds and low RH are expected north of a line from Chiloquin to Paisley while abundant lightning on dry fuels is expected south. * WIND...Southwest 15 to 25 with gusting 25 and 35 mph. * HUMIDITY...7 to 12 percent. * THUNDERSTORMS...Isolated to scattered high based storms that are likely to have very little to no precipitation, especially outside of storm cores. Lightning strikes outside of precipitation cores are possible and cause for concern. * OUTFLOW WINDS...Gusts up to 35 mph. * ADDITIONAL INFORMATION...The best chance for storms will be Saturday afternoon into Saturday evening, then again Sunday afternoon into Sunday evening. Isolated thunderstorms are possible late Saturday night into Sunday morning. * DETAILED URL...View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

* WHAT...Dangerously hot conditions through Saturday, especially at lower elevations. Hot conditions will continue on Sunday for the Heat Advisory. * WHERE...Baker County. * WHEN...For the Excessive Heat Warning, until 11 PM PDT Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM PDT Sunday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Dangerously hot conditions through Saturday, especially at lower elevations. * WHERE...In Idaho, Lower Treasure Valley ID. In Oregon, Oregon Lower Treasure Valley. * WHEN...Until midnight MDT Sunday night. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Dangerously hot conditions through Saturday, especially at lower elevations. Hot conditions will continue on Sunday for the Heat Advisory. * WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur County. * WHEN...For the Excessive Heat Warning, until midnight MDT /11 PM PDT/ Saturday night. For the Heat Advisory, from midnight MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/ Sunday night. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Dangerously hot conditions through Saturday, especially at lower elevations. Hot conditions will continue on Sunday for the Heat Advisory. * WHERE...Baker County. * WHEN...For the Excessive Heat Warning, until 11 PM PDT Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM PDT Sunday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Hot conditions through Saturday, especially at lower elevations. * WHERE...Portions of south central and southwest Idaho and southeast Oregon. * WHEN...Until midnight MDT /11 PM PDT/ Saturday night. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* WHAT...Dangerously hot conditions through Saturday, especially at lower elevations. Hot conditions will continue on Sunday for the Heat Advisory. * WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur County. * WHEN...For the Excessive Heat Warning, until midnight MDT /11 PM PDT/ Saturday night. For the Heat Advisory, from midnight MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/ Sunday night. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

...Potential for abundant lightning this weekend... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. * Thunderstorms...Scattered storms with little to no precipitation and abundant lightning are possible Saturday and Sunday. * Outflow Winds...Up to 50 MPH possible. * Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch, from Sunday afternoon through Sunday evening. * Thunderstorms...15 to 25 percent expected coverage. * Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch, from Sunday afternoon through Sunday evening.

...Potential for abundant lightning this weekend... * Thunderstorms...Scattered storms with little to no precipitation and abundant lightning are possible Saturday and Sunday. * Outflow Winds...Up to 50 MPH possible. * Timing...From late Saturday morning through Sunday evening.

...Potential for abundant lightning this weekend... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. * Thunderstorms...Scattered storms with little to no precipitation and abundant lightning are possible Saturday and Sunday. * Outflow Winds...Up to 50 MPH possible. * Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch, from Sunday afternoon through Sunday evening. * Thunderstorms...15 to 25 percent expected coverage. * Timing...For the Red Flag Warning, from noon MDT /11 AM PDT/ to 9 PM MDT /8 PM PDT/ Saturday. For the Fire Weather Watch, from Sunday afternoon through Sunday evening.