Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 33, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jul 31, 2021, 1:55 PM PDT for 6 counties in Oregon. It took effect at Aug 1, 2021, 2:00 PM PDT. It was in force for 8 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
- Jul 31, 2021, 1:55 PM PDT (20:55 UTC)
- In effect from
- Aug 1, 2021, 2:00 PM PDT
- Expired
- Aug 1, 2021, 10:00 PM PDT
- In force
- 8 hr
- Issued by
- NWS Medford, OR
Counties Curry County, OR, Douglas County, OR, Jackson County, OR, Josephine County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 66 km from the middle of the area, began a volume at 20:55 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, 8.9 hours before the alert went out and 37 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
- 5 J/kg
- Mixed-layer CIN
- -620 J/kg
- Mixed-layer LCL
- 2087 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
013 WWUS86 KMFR 312055 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 155 PM PDT Sat Jul 31 2021 ...Isolated to scattered thunderstorms expected in the afternoons and evenings this weekend... .Southerly flow will continue to bring moisture into the area. The heat and moisture will combine to support isolated to scattered thunderstorms each afternoon and evening this weekend. With critically dry fuels in these areas, numerous fire starts are likely. ORZ625-010500- /O.CAN.KMFR.FW.A.0025.210801T2100Z-210802T0500Z/ /O.CON.KMFR.FW.W.0032.210731T2100Z-210801T0500Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 155 PM PDT Sat Jul 31 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625... * Impacts: Lightning and critically dry vegetation 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 areas For the Red Flag Warning: In South Central OR Fire Weather Zones...Western 625 including the communities of Silver Lake, Summer Lake, Paisley, and Adel. This also includes the Bootleg Fire. * Additional Details: Storms tomorrow will be isolated in fire weather zone 625, prompting the cancellation of the fire weather watch. * 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. && $$ ORZ623-624-010900- /O.UPG.KMFR.FW.A.0025.210801T2100Z-210802T0500Z/ /O.NEW.KMFR.FW.W.0033.210801T2100Z-210802T0500Z/ /O.CON.KMFR.FW.W.0032.210731T2100Z-210801T0500Z/ Southern Oregon Cascades-Klamath Basin and the Fremont- Winema National Forest- 155 PM PDT Sat Jul 31 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 623 AND 624... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 10 PM PDT SUNDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 623 AND 624... The National Weather Service in Medford has upgraded the Fire Weather Watch on Sunday to a Red Flag Warning...which is in effect from 2 PM to 10 PM PDT Sunday. The Red Flag Warning for this evening continues until 10 PM PDT. * Impacts: Lightning and critically dry vegetation 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 areas For the Red Flag Warning for this evening: In South Central OR Fire Weather Zones...623 and 624 including the communities of Crater Lake, Union Creek, Howard Prairie, Klamath Falls, Chemult, Bly and Lakeview. This includes the Bootleg Fire. * Affected areas for the Red Flag Warning for Sunday: In South Central Oregon, portions of Fire Weather Zones 623 and 624. This includes the communities of Crater Lake, Howard Prairie, Klamath Falls, Chemult, and Chiloquin. This does NOT include 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. && $$ CAZ280-ORZ621-622-010500- /O.CON.KMFR.FW.W.0032.210731T2100Z-210801T0500Z/ Western Klamath National Forest-Siskiyou Mountains- Eastern Rogue Valley- 155 PM PDT Sat Jul 31 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280... 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 areas For the Red Flag Warning: In Northern CA Fire Weather Zones...280, including the communities of Etna, Fort Jones, and Callahan. In Southwest OR...most of Fire Weather Zone 621, and portions of Fire Weather Zone 622, including the communities of Ashland and Butte Falls in the Cascade and Siskiyou Mountain Foothills. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ Visit us at www.weather.gov/Medford
4 follow-up statements
082 WWUS86 KMFR 010456 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 956 PM PDT Sat Jul 31 2021 ...Isolated to scattered thunderstorms expected Sunday afternoon and evening... .Southerly flow will continue to bring moisture into the area. The heat and moisture will combine to support isolated to scattered thunderstorms Sunday afternoon and evening. With critically dry fuels in these areas, numerous fire starts are likely. ORZ623-624-012200- /O.EXP.KMFR.FW.W.0032.000000T0000Z-210801T0500Z/ /O.CON.KMFR.FW.W.0033.210801T2100Z-210802T0500Z/ Southern Oregon Cascades-Klamath Basin and the Fremont- Winema National Forest- 956 PM PDT Sat Jul 31 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 10 PM PDT SUNDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 623 AND 624... ...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 623 AND 624... * 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 areas for the Red Flag Warning: In South Central Oregon, portions of Fire Weather Zones 623 and 624. This includes Crater Lake, Howard Prairie, Klamath Falls, Chemult, and Chiloquin. This does NOT include 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. && $$ CAZ280-ORZ621-622-625-010600- /O.EXP.KMFR.FW.W.0032.000000T0000Z-210801T0500Z/ Western Klamath National Forest-Siskiyou Mountains- Eastern Rogue Valley- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 956 PM PDT Sat Jul 31 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 280... 621...622 AND 625... Only a few thunderstorms remain active at this time, and those will end soon. $$ Visit us at www.weather.gov/Medford
969 WWUS86 KMFR 010722 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1222 AM PDT Sun Aug 1 2021 ...Isolated to scattered thunderstorms expected this afternoon and evening... .Southerly flow will continue to bring moisture into the area. The heat and moisture will combine to support isolated to scattered thunderstorms this afternoon and evening. With critically dry fuels in these areas, numerous fire starts are likely. ORZ620-622-020500- /O.EXA.KMFR.FW.W.0033.210801T2100Z-210802T0500Z/ Western Rogue Basin including the Illinois Valley- Eastern Rogue Valley- 1222 AM PDT Sun Aug 1 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 620 AND 622... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM this afternoon to 10 PM PDT this 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 areas for the Red Flag Warning: In Southwestern Oregon, Fire Weather Zones 620 and 622 including the communities of Cave Junction, Grants Pass, Medford, and Prospect. * Thunderstorms: Storms are expected to form near the California- Oregon border and move from south to north during the afternoon. * 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 always 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. $$ ORZ623-624-020500- /O.CON.KMFR.FW.W.0033.210801T2100Z-210802T0500Z/ Southern Oregon Cascades-Klamath Basin and the Fremont- Winema National Forest- 1222 AM PDT Sun Aug 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 623 AND PORTIONS OF 624... * 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 areas for the Red Flag Warning: In South Central Oregon, portions of Fire Weather Zones 623 and 624. This includes Crater Lake, Howard Prairie, Klamath Falls, Chemult, and Chiloquin. This does NOT include 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 always 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. $$ Visit us at www.weather.gov/Medford
341 WWUS86 KMFR 012142 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 242 PM PDT Sun Aug 1 2021 ...Isolated to scattered thunderstorms expected this afternoon and evening across FWZs 620, 622, 623, and northwestern 624... ...Scattered thunderstorms expected in FWZ 625 Monday afternoon and evening... .Southerly flow will continue to bring moisture into the area. The heat and moisture will combine with a couple of low pressure impulses moving through aloft to support isolated to scattered thunderstorms this afternoon and evening and again, further northeastward, Monday afternoon and evening. With critically dry fuels in these areas, numerous fire starts are likely. ORZ625-021400- /O.NEW.KMFR.FW.W.0034.210802T2100Z-210803T0300Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 242 PM PDT Sun Aug 1 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT MONDAY FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 8 PM PDT Monday. * Impacts: Lightning on dry fuels is likely to result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite localized wetting rainfall in storm cores, initial attack resources could be overwhelmed and holdover fires are likely. * Affected area: In South Central OR...Fire Weather Zone 625. * Wind: Southerly 5-10 mph, except gusty and erratic wind gusts 30 to 40 mph in stronger thunderstorms. * Thunderstorms: Thunderstorms are expected to begin to develop near Silver Lake and Summer Lake early in the afternoon and then expand in area and coverage across FWZ 625 through the afternoon and into the evening. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... 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. && $$ ORZ620-622>624-020500- /O.CON.KMFR.FW.W.0033.000000T0000Z-210802T0500Z/ Western Rogue Basin including the Illinois Valley- Eastern Rogue Valley-Southern Oregon Cascades- Klamath Basin and the Fremont-Winema National Forest- 242 PM PDT Sun Aug 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 620, 622, 623 AND PORTIONS OF 624... * Impacts: Lightning on dry fuels is likely to result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite localized wetting rainfall in storm cores, initial attack resources could be overwhelmed and holdover fires are likely. * Affected areas for the Red Flag Warning: In Southwestern Oregon, Fire Weather Zones 620 and 622 including the Illinois Valley including Cave Junction and Grants Pass, and the Applegate Valley northward to Phoenix, Medford to Prospect. In South Central Oregon, portions of Fire Weather Zones 623 and 624. This includes Crater Lake, Howard Prairie, Klamath Falls, Chemult, and Chiloquin. This does NOT include the Bootleg fire. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ BTL Visit us at www.weather.gov/Medford
725 WWUS86 KMFR 020455 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 955 PM PDT Sun Aug 1 2021 ...Scattered thunderstorms expected in FWZ 625 Monday afternoon and evening... .Southerly flow will continue to bring moisture into the area. The heat and moisture will combine with upper level disturbances to support isolated to scattered thunderstorms Monday afternoon and evening. With critically dry fuels in these areas, numerous fire starts are likely. ORZ620-622>624-020600- /O.EXP.KMFR.FW.W.0033.000000T0000Z-210802T0500Z/ Western Rogue Basin including the Illinois Valley- Eastern Rogue Valley-Southern Oregon Cascades- Klamath Basin and the Fremont-Winema National Forest- 955 PM PDT Sun Aug 1 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 620, 622, 623 AND PORTIONS OF 624... Thunderstorms have diminished over the area. $$ ORZ625-022200- /O.CON.KMFR.FW.W.0034.210802T2100Z-210803T0300Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 955 PM PDT Sun Aug 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT MONDAY FOR ABUNDANT LIGHTNING ON DRY FUELS... * Impacts: Lightning and high fire danger will likely result in new fire starts. Gusty thunderstorm winds could contribute to firespread. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. * Affected area: In South Central OR...Fire Weather Zone 625. * Wind: Southerly 5-10 mph, except gusty and erratic wind gusts 30 to 40 mph in stronger thunderstorms. * Thunderstorms: Thunderstorms are expected to begin to develop near Silver Lake and Summer Lake early in the afternoon and then expand in area and coverage across FWZ 625 through the afternoon and into the evening. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... 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. $$ 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 |
|---|---|---|---|---|
| Jul 30, 5:16 PM PDT | Flash Flood Warning | MFR | Josephine | 59 min |
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.