Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 38, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Aug 9, 2021, 2:45 PM PDT for Coos County, Douglas County, Lane County, Oregon. It took effect at Aug 11, 2021, 2:00 PM PDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 9, 2021, 2:45 PM PDT (21:45 UTC)
- In effect from
- Aug 11, 2021, 2:00 PM PDT
- Expired
- Aug 11, 2021, 10:49 PM PDT
- In force
- 9 hr
- Issued by
- NWS Medford, OR
Counties Coos County, OR, Douglas County, OR, Lane County, OR
The radar
The Medford radar (KMAX), 164 km from the middle of the area, began a volume at 21:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 9.8 hours before the alert went out and 131 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1762 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
219 WWUS86 KMFR 092145 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 245 PM PDT Mon Aug 9 2021 ORZ616-617-100945- /O.UPG.KMFR.FW.A.0028.210810T1800Z-210812T0400Z/ /O.NEW.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua Basin-Umpqua National Forest- 245 PM PDT Mon Aug 9 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONES 616 AND 617... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 11 PM PDT Wednesday. The Fire Weather Watch is no longer in effect. * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally-generated erratic and gusty winds. Spotting could be problematic. * Affected areas: The Jack Fire, Skyline Complex and Devils Knob Complex spread across fire weather zones 616 and 617. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. Precautionary/preparedness actions... A Red Flag Warning in this case means that critical fire weather conditions will during the warning period. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ Visit us at www.weather.gov/Medford
5 follow-up statements
546 WWUS86 KMFR 100839 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 139 AM PDT Tue Aug 10 2021 ORZ616-617-110000- /O.CON.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua Basin-Umpqua National Forest- 139 AM PDT Tue Aug 10 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONES 616 AND 617... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 11 PM PDT Wednesday. * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally-generated erratic and gusty winds. Spotting could be problematic. * Affected areas: The Jack Fire, Skyline Complex, and Devils Knob Complex spread across fire weather zones 616 and 617. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. $$ Visit us at www.weather.gov/Medford
637 WWUS86 KMFR 102156 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 256 PM PDT Tue Aug 10 2021 ORZ616-617-111000- /O.CON.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua Basin-Umpqua National Forest- 256 PM PDT Tue Aug 10 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONES 616 AND 617... * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally-generated erratic and gusty winds. Spotting could be problematic. * Affected areas: The Jack Fire, Skyline Complex, and Devils Knob Complex spread across fire weather zones 616 and 617. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. $$ A Red Flag Warning in this case means that critical fire weather conditions will occur during the warning period. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. Visit us at www.weather.gov/Medford
513 WWUS86 KMFR 110926 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 226 AM PDT Wed Aug 11 2021 ORZ616-617-120000- /O.CON.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua Basin-Umpqua National Forest- 226 AM PDT Wed Aug 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONES 616 AND 617... * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally- generated erratic and gusty winds. Spotting could be problematic. * Affected areas: The Jack Fire, Skyline Complex, and Devils Knob Complex spread across fire weather zones 616 and 617. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. $$ Visit us at www.weather.gov/Medford
913 WWUS86 KMFR 111926 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1226 PM PDT Wed Aug 11 2021 ORZ617-121200- /O.NEW.KMFR.FW.W.0039.210812T2100Z-210813T0600Z/ /O.NEW.KMFR.FW.A.0029.210813T2100Z-210814T0600Z/ /O.CON.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua National Forest- 1226 PM PDT Wed Aug 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 617... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT THURSDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 617... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 617... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 11 PM PDT Thursday. A Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Friday afternoon through Friday evening. * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally generated erratic and gusty winds. 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. * Haines 6 Affected areas: The Jack Fire and Devils Knob Complex in fire weather zone 617. * Weather: Humidity As low as 12 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. * Thunderstorms: Mainly isolated thunderstorms are expected, but some scattered coverage is possible across the eastern portion of the zone. Gusty and erratic winds are possible near thunderstorms. * Abundant Lightning Affected area: In Southwest OR...Fire Weather Zone 617. * 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. A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life- threatening. Check weather.gov/medford for forecast updates and a possible upgrade of the this watch to a Red Flag Warning. && $$ ORZ616-121200- /O.NEW.KMFR.FW.W.0039.210812T2100Z-210813T0600Z/ /O.CON.KMFR.FW.W.0038.210811T2100Z-210812T0600Z/ Umpqua Basin- 1226 PM PDT Wed Aug 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 616... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT THURSDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 616... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 11 PM PDT Thursday. * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally- generated erratic and gusty winds. Spotting could be problematic. * Affected areas: Skyline Complex spread across fire weather zone 616. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ CAZ280-281-284-285-ORZ621-623>625-121200- /O.NEW.KMFR.FW.A.0029.210813T2100Z-210814T0600Z/ Western Klamath National Forest- Central Siskiyou County Including Shasta Valley- Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- Siskiyou Mountains-Southern Oregon Cascades- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 1226 PM PDT Wed Aug 11 2021 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280...281...284... 285...621...623...624 AND 625... The National Weather Service in Medford has issued a Fire Weather Watch...which is in effect from Friday afternoon through Friday evening. * 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...280...281...284...285. In South Central OR Fire Zones...624...625. In Southwest OR Fire Zones...621...623. * Wind: Northwest 5 to 10 mph, except for gusty and erratic winds near thunderstorms. * Thunderstorms: Mainly isolated thunderstorms are expected, but some scattered coverage is possible across the eastern portion of the zone. Gusty and erratic winds are possible near thunderstorms. * Humidity: As low as 14 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... If you have not packed your evacuation kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Plan now to avoid using equipment that could cause sparks during the period when critical weather conditions are possible. Visit weather.gov/medford/wildfire for links to fire restrictions in your area. A Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life- threatening. Check weather.gov/medford for forecast updates and a possible upgrade of the this watch to a Red Flag Warning. && $$ Visit us at www.weather.gov/Medford
784 WWUS86 KMFR 120549 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1049 PM PDT Wed Aug 11 2021 ORZ617-122330- /O.CAN.KMFR.FW.W.0038.000000T0000Z-210812T0600Z/ /O.CON.KMFR.FW.W.0039.210812T2100Z-210813T0600Z/ /O.CON.KMFR.FW.A.0029.210813T2100Z-210814T0600Z/ Umpqua National Forest- 1049 PM PDT Wed Aug 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT THURSDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 617... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 617... ...RED FLAG WARNING ON WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 617 HAS EXPIRED... * Impacts: For the Haines 6 conditions, very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally-generated erratic and gusty winds. Spotting could be problematic. For the abundant lightning, 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. * Haines 6 Affected areas: The Jack Fire and Devils Knob Complex in fire weather zone 617. * Weather: Humidity As low as 12 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. * Thunderstorms: Mainly isolated thunderstorms are expected, but some scattered coverage is possible across the eastern portion of the zone. Gusty and erratic winds are possible near thunderstorms. * Abundant Lightning Affected area: In Southwest OR...Fire Weather Zone 617. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... 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. && $$ ORZ616-122330- /O.CAN.KMFR.FW.W.0038.000000T0000Z-210812T0600Z/ /O.CON.KMFR.FW.W.0039.210812T2100Z-210813T0600Z/ Umpqua Basin- 1049 PM PDT Wed Aug 11 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 11 PM PDT THURSDAY HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 616... ...RED FLAG WARNING ON WEDNESDAY FOR HAINES 6 WITH EXISTING FIRE FOR FIRE WEATHER ZONE 616 HAS EXPIRED... * Impacts: Very dry and unstable conditions will support extreme fire behavior. Plume domination is possible with locally- generated erratic and gusty winds. Spotting could be problematic. * Affected areas: Skyline Complex spread across fire weather zone 616. * Weather: Humidity As low as 15 percent with a Haines 6. Gusty and erratic winds are possible near smoke plumes. * 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. && $$ CAZ280-281-284-285-ORZ621-623>625-122330- /O.CON.KMFR.FW.A.0029.210813T2100Z-210814T0600Z/ Western Klamath National Forest- Central Siskiyou County Including Shasta Valley- Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- Siskiyou Mountains-Southern Oregon Cascades- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 1049 PM PDT Wed Aug 11 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280...281... 284...285...621...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...280...281...284...285. In South Central OR Fire Zones...624...625. In Southwest OR Fire Zones...621...623. * Wind: Northwest 5 to 10 mph, except for gusty and erratic winds near thunderstorms reaching up to 40 mph. * Thunderstorms: Mainly isolated thunderstorms are expected, but some scattered coverage is possible across the eastern portion of the zone. Gusty and erratic winds are possible near thunderstorms. * Humidity: As low as 14 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... If you have not packed your evacuation kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Fire Weather Watch means that critical fire weather conditions are possible during the valid watch time. These conditions could promote the rapid spread of wildfires which could become life- threatening. Check weather.gov/medford for forecast updates and a possible upgrade of the this watch to a Red Flag Warning. && $$ Visit us at www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 11:28 AM PDT | Excessive Heat Warning | MFR | Coos, Curry, Douglas, Jackson, Josephine, Klamath | 5 days |
| Aug 9, 11:28 AM PDT | Heat Advisory | MFR | Klamath, Lake | 4 days |
| Aug 9, 1:36 PM PDT | Hazardous Seas Warning | MFR | 33 hr |
Nearby
Red Flag Warnings in Oregon, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.