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Home Return to list Fire Weather Watch 0004 Issued by the Boise Forecast Office
Action: New Issued At: 2026-06-18 09:06:17 231 WWUS85 KBOI 181405 RFWBOI URGENT - FIRE WEATHER MESSAGE National Weather Service Boise ID 805 AM MDT Thu Jun 18 2026 ...FIRE WEATHER WATCH FOR LIGHTNING... .An upper trough from the Pacific is forecast inland across northern California Friday, southeast Oregon Friday night, and southwest Idaho overnight through Saturday. The trough will bring a 30 to 60 percent chance of thunderstorms with potential for new fire starts due to lightning. Initial storms may be dry with strong gusty outflow winds, especially in southeast Oregon, but storms overnight through Saturday should be wetter, especially in Idaho. ORZ670-672-190000- /O.NEW.KBOI.FW.A.0004.260619T2000Z-260620T1200Z/ Burns BLM-Southern Grasslands- 705 AM PDT Thu Jun 18 2026 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT FOR LIGHTNING FOR BURNS BLM AND SOUTHERN GRASSLANDS...WHICH ARE FIRE WEATHER ZONES 670 AND 672... The National Weather Service in Boise has issued a Fire Weather Watch for lightning, which is in effect from Friday afternoon through late Friday night. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM and 672 Southern Grasslands. * TIMING...From Friday afternoon through late Friday night. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 50 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are possible. Listen for later forecasts and possible Red Flag Warnings. && $$ IDZ423-426-190000- /O.NEW.KBOI.FW.A.0004.260620T0000Z-260620T1800Z/ Owyhee Mountains-Southern Highlands- 805 AM MDT Thu Jun 18 2026 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING FOR LIGHTNING FOR OWYHEE MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES 423 AND 426... The National Weather Service in Boise has issued a Fire Weather Watch for lightning, which is in effect from Friday evening through Saturday morning. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From Friday evening through Saturday morning. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 45 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are possible. Listen for later forecasts and possible Red Flag Warnings. && $$ L Action: New Issued At: 2026-06-18 09:06:17 231 WWUS85 KBOI 181405 RFWBOI URGENT - FIRE WEATHER MESSAGE National Weather Service Boise ID 805 AM MDT Thu Jun 18 2026 ...FIRE WEATHER WATCH FOR LIGHTNING... .An upper trough from the Pacific is forecast inland across northern California Friday, southeast Oregon Friday night, and southwest Idaho overnight through Saturday. The trough will bring a 30 to 60 percent chance of thunderstorms with potential for new fire starts due to lightning. Initial storms may be dry with strong gusty outflow winds, especially in southeast Oregon, but storms overnight through Saturday should be wetter, especially in Idaho. ORZ670-672-190000- /O.NEW.KBOI.FW.A.0004.260619T2000Z-260620T1200Z/ Burns BLM-Southern Grasslands- 705 AM PDT Thu Jun 18 2026 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT FOR LIGHTNING FOR BURNS BLM AND SOUTHERN GRASSLANDS...WHICH ARE FIRE WEATHER ZONES 670 AND 672... The National Weather Service in Boise has issued a Fire Weather Watch for lightning, which is in effect from Friday afternoon through late Friday night. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM and 672 Southern Grasslands. * TIMING...From Friday afternoon through late Friday night. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 50 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are possible. Listen for later forecasts and possible Red Flag Warnings. && $$ IDZ423-426-190000- /O.NEW.KBOI.FW.A.0004.260620T0000Z-260620T1800Z/ Owyhee Mountains-Southern Highlands- 805 AM MDT Thu Jun 18 2026 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING FOR LIGHTNING FOR OWYHEE MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES 423 AND 426... The National Weather Service in Boise has issued a Fire Weather Watch for lightning, which is in effect from Friday evening through Saturday morning. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From Friday evening through Saturday morning. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 45 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are possible. Listen for later forecasts and possible Red Flag Warnings. && $$ L Action: Upgraded Issued At: 2026-06-18 13:57:56 932 WWUS85 KBOI 181857 RFWBOI URGENT - FIRE WEATHER MESSAGE National Weather Service Boise ID 1257 PM MDT Thu Jun 18 2026 ...RED FLAG WARNING FOR LIGHTNING... .An upper trough from the Pacific is forecast to move into southeast Oregon beginning Friday afternoon, then across southwest Idaho Friday night into Saturday. The trough will bring a 30 to 60 percent chance of thunderstorms with potential for new fire starts due to lightning. Initial storms may be dry with strong gusty outflow winds, especially in southeast Oregon, but storms overnight through Saturday will gradually trend wetter as they spread into Idaho. ORZ670-672-191500- /O.UPG.KBOI.FW.A.0004.260619T2000Z-260620T1200Z/ /O.NEW.KBOI.FW.W.0006.260619T2000Z-260620T1200Z/ Burns BLM-Southern Grasslands- 1157 AM PDT Thu Jun 18 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM FRIDAY TO 5 AM PDT SATURDAY FOR LIGHTNING FOR BURNS BLM AND SOUTHERN GRASSLANDS... WHICH ARE FIRE WEATHER ZONES 670 AND 672... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from 1 PM Friday to 5 AM PDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM and 672 Southern Grasslands. * TIMING...From 1 PM Friday to 5 AM PDT Saturday. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 50 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. && $$ IDZ423-426-191500- /O.UPG.KBOI.FW.A.0004.260620T0000Z-260620T1800Z/ /O.NEW.KBOI.FW.W.0006.260620T0000Z-260620T1800Z/ Owyhee Mountains-Southern Highlands- 1257 PM MDT Thu Jun 18 2026 ...RED FLAG WARNING IN EFFECT FROM 6 PM FRIDAY TO NOON MDT SATURDAY FOR LIGHTNING FOR OWYHEE MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES 423 AND 426... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from 6 PM Friday to noon MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From 6 PM Friday to noon MDT Saturday. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 45 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. && $$ L Action: Upgraded Issued At: 2026-06-18 13:57:56 932 WWUS85 KBOI 181857 RFWBOI URGENT - FIRE WEATHER MESSAGE National Weather Service Boise ID 1257 PM MDT Thu Jun 18 2026 ...RED FLAG WARNING FOR LIGHTNING... .An upper trough from the Pacific is forecast to move into southeast Oregon beginning Friday afternoon, then across southwest Idaho Friday night into Saturday. The trough will bring a 30 to 60 percent chance of thunderstorms with potential for new fire starts due to lightning. Initial storms may be dry with strong gusty outflow winds, especially in southeast Oregon, but storms overnight through Saturday will gradually trend wetter as they spread into Idaho. ORZ670-672-191500- /O.UPG.KBOI.FW.A.0004.260619T2000Z-260620T1200Z/ /O.NEW.KBOI.FW.W.0006.260619T2000Z-260620T1200Z/ Burns BLM-Southern Grasslands- 1157 AM PDT Thu Jun 18 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM FRIDAY TO 5 AM PDT SATURDAY FOR LIGHTNING FOR BURNS BLM AND SOUTHERN GRASSLANDS... WHICH ARE FIRE WEATHER ZONES 670 AND 672... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from 1 PM Friday to 5 AM PDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM and 672 Southern Grasslands. * TIMING...From 1 PM Friday to 5 AM PDT Saturday. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 50 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. && $$ IDZ423-426-191500- /O.UPG.KBOI.FW.A.0004.260620T0000Z-260620T1800Z/ /O.NEW.KBOI.FW.W.0006.260620T0000Z-260620T1800Z/ Owyhee Mountains-Southern Highlands- 1257 PM MDT Thu Jun 18 2026 ...RED FLAG WARNING IN EFFECT FROM 6 PM FRIDAY TO NOON MDT SATURDAY FOR LIGHTNING FOR OWYHEE MOUNTAINS AND SOUTHERN HIGHLANDS...WHICH ARE FIRE WEATHER ZONES 423 AND 426... The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from 6 PM Friday to noon MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From 6 PM Friday to noon MDT Saturday. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 45 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. && $$ L | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||