Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 48, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Sep 8, 2021, 8:11 AM PDT for Harney County, Klamath County, Lake County, Oregon. It took effect at Sep 8, 2021, 2:00 PM PDT. It was in force for 5 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
- Sep 8, 2021, 8:11 AM PDT (15:11 UTC)
- In effect from
- Sep 8, 2021, 2:00 PM PDT
- Expired
- Sep 8, 2021, 7:00 PM PDT
- In force
- 5 hr
- Issued by
- NWS Medford, OR
Counties Harney County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 213 km from the middle of the area, began a volume at 15:12 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, 3.2 hours before the alert went out and 209 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
- 2699 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
717 WWUS86 KMFR 081511 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 811 AM PDT Wed Sep 8 2021 ORZ624-625-090200- /O.NEW.KMFR.FW.W.0048.210908T2100Z-210909T0200Z/ Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 811 AM PDT Wed Sep 8 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 624 AND 625... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM this afternoon to 7 PM PDT this evening. * Impacts: Strong, gusty wind with low relative humidity and critically dry vegetation will greatly increase the spread potential of any new and existing fires. * Affected area: In South Central OR, eastern and southeastern Fire Zone 624 and Fire Weather Zone 625, including the Warner and Hart Mountains, Winter Rim, portions of the Fremont National Forest, and BLM land in eastern Lake County and western Harney County. This includes the communities of Bly, Lakeview, Valley Falls, Paisley and Summer Lake. * Wind: Southwest 15 to 20 mph with gusts of 30 to 40 mph. * Humidity: 12 to 15 percent. * 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. && $$ Visit us at www.weather.gov/Medford
2 follow-up statements
727 WWUS86 KMFR 082131 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 231 PM PDT Wed Sep 8 2021 ...Strong gusty winds expected today followed by strong gusty winds and thunderstorms possible Thursday and Friday... .Strong gusty winds and dry humidities are expected east of the Southern Oregon Cascades this afternoon and early this evening. An area of low pressure will move towards the region Thursday resulting in an additional period of strong, gusty winds for areas east of the Cascades as well as chances for elevated and potentially dry thunderstorms or showers across the East Side and Northern California. Strong, gusty outflows are possible with any thunderstorms or showers that form Thursday, especially east of the Cascades. Thursday night through Friday afternoon, as the low begins to move inland, the chance for thunderstorms and abundant lightning on dry fuels increases from the Cascades east. Storms are expected to be accompanied by some rainfall. ORZ624-625-090945- /O.NEW.KMFR.FW.A.0037.210909T2000Z-210910T2200Z/ /O.CON.KMFR.FW.W.0048.000000T0000Z-210909T0200Z/ Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 231 PM PDT Wed Sep 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 624 AND 625... ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... The National Weather Service in Medford has issued a Fire Weather Watch...which is in effect from Thursday afternoon through Friday afternoon. * Impacts: This afternoon through Friday: Strong, gusty winds with low relative humidity and critically dry vegetation will greatly increase the spread potential of any new and existing fires. Thursday afternoon through Friday afternoon: The potential of lightning and high fire danger may result in new fire starts. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. In addition, gusty winds and dry humidities on Thursday afternoon along with gusty winds within and away from storms late Thursday and Friday will likely contribute to the spread of any new fires. * Affected area: In South Central OR...Fire Weather Zones 624 and 625. This afternoon and evening, this includes Warner and Hart Mountains, Winger Rim, portions of the Fremont National Forest and BLM land in eastern Lake and western Harney Counties. Thursday afternoon through Friday afternoon, this includes all of Fire Weather Zones 624 and 625 including he Klamath Basin and Fremont Winema National Forest and BLM land in eastern Lake and western Harney Counties. * Wind: This afternoon and evening winds today and Thursday: Southwest 15 to 20 mph with gusts up of 30 to 40 mph. Strong, gusty and erratic winds expected near thunderstorms or showers Thursday and again Friday. * Humidity: As low as 12 percent today, then 14 to 20 percent Thursday. * Thunderstorms: Isolated to scattered, dry thunderstorms are possible Thursday afternoon and evening. Scattered thunderstorms with abundant lightning are possible Thursday night and Friday. * 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. && $$ CAZ284-285-090945- /O.NEW.KMFR.FW.A.0037.210909T2000Z-210910T2200Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 231 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 284 AND 285... The National Weather Service in Medford has issued a Fire Weather Watch...which is in effect from Thursday afternoon through Friday afternoon. * Impacts: The potential of lightning and high fire danger may result in new fire starts. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. In addition, gusty winds and dry humidities on Thursday along with gusty winds near storms Thursday and Friday will likely contribute to the spread of any new fires. * Affected area: In Northern CA...Fire Weather Zones 284 and 285. This includes the Cascade Mountains east in eastern Siskiyou County and Modoc County. * Wind: Southwest 10 to 20 mph with gusts up to 40 mph in the afternoon and evening. Strong, gusty and erratic winds expected near thunderstorms or showers. * Thunderstorms: Isolated to scattered, dry thunderstorms are possible Thursday afternoon and evening. Scattered thunderstorms with abundant lightning are possible Thursday night and Friday. * Humidity: 13 to 20 percent Thursday afternoon. * 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. && $$ CAZ282-090945- /O.NEW.KMFR.FW.A.0037.210909T2000Z-210910T1200Z/ Shasta-Trinity National Forest in Siskiyou County- 231 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 282... The National Weather Service in Medford has issued a Fire Weather Watch...which is in effect from Thursday afternoon through late Thursday night. * Impacts: Gusty winds, low relative humidity, critically dry vegetation Thursday afternoon and evening along with a potential for isolated to scattered thunderstorms Thursday afternoon through Thursday night. Gusty winds will greatly increase the spread potential of any new and existing fires. Lightning and high fire danger may result in new fire starts. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. * Affected area: In Northern CA...Fire Weather Zone 282. This includes portions of the Shasta-Trinity National Forest in south central Siskiyou County near and east of Mount Shasta City. * Wind: South winds 8 to 15 mph with gusts up to 30 mph Thursday afternoon. Strong, gusty and erratic winds expected near thunderstorms or showers. * Thunderstorms: Isolated to scattered thunderstorms may develop late Thursday afternoon and continue overnight. Storms are expected to initially be dry, with strong, gusty outflows then may moisten up Thursday night and bring rainfall along with gusty winds. * Humidity: 15 to 20 percent Thursday afternoon. * 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. && $$ ORZ617-623-090945- /O.NEW.KMFR.FW.A.0037.210910T1200Z-210910T2200Z/ Umpqua National Forest-Southern Oregon Cascades- 231 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY AFTERNOON FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 617 AND 623... The National Weather Service in Medford has issued a Fire Weather Watch...which is in effect from late Thursday night through Friday afternoon. * 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 Southwest OR...Fire Weather Zones 617 and 623. This includes the Southern Oregon Cascades and eastern portions of the Umpqua National Forest. * Thunderstorms: Scattered thunderstorms with abundant lightning may develop late early Friday morning and continue into Friday afternoon. Strong, gusty and erratic winds expected near thunderstorms or showers. * 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
580 WWUS86 KMFR 090216 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 716 PM PDT Wed Sep 8 2021 ...Strong gusty winds expected today followed by strong gusty winds and thunderstorms possible Thursday and Friday... .Strong gusty winds and dry humidities are expected east of the Southern Oregon Cascades this afternoon and early this evening. An area of low pressure will move towards the region Thursday resulting in an additional period of strong, gusty winds for areas east of the Cascades as well as chances for elevated and potentially dry thunderstorms or showers across the East Side and Northern California. Strong, gusty outflows are possible with any thunderstorms or showers that form Thursday, especially east of the Cascades. Thursday night through Friday afternoon, as the low begins to move inland, the chance for thunderstorms and abundant lightning on dry fuels increases from the Cascades east. Storms are expected to be accompanied by some rainfall. ORZ624-625-091430- /O.EXP.KMFR.FW.W.0048.000000T0000Z-210909T0200Z/ /O.CON.KMFR.FW.A.0037.210909T2000Z-210910T2200Z/ Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 716 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 624 AND 625... ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 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 South Central OR...Fire Weather Zones 624 and 625. * Wind: This afternoon and evening winds today and Thursday: Southwest 15 to 20 mph with gusts up of 30 to 40 mph. Strong, gusty and erratic winds expected near thunderstorms or showers Thursday and again Friday. * Humidity: As low as 12 percent today, then 14 to 20 percent Thursday. * Thunderstorms: Isolated to scattered, dry thunderstorms are possible Thursday afternoon and evening. Scattered thunderstorms with abundant lightning are possible Thursday night and Friday. * 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. && $$ CAZ284-285-091430- /O.CON.KMFR.FW.A.0037.210909T2000Z-210910T2200Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 716 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 284 AND 285... * 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 Weather Zones 284 and 285. * Wind: Southwest 10 to 20 mph with gusts up to 40 mph in the afternoon and evening. Strong, gusty and erratic winds expected near thunderstorms or showers. * Thunderstorms: Isolated to scattered, dry thunderstorms are possible Thursday afternoon and evening. Scattered thunderstorms with abundant lightning are possible Thursday night and Friday. * Humidity: 13 to 20 percent Thursday afternoon. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ CAZ282-091430- /O.CON.KMFR.FW.A.0037.210909T2000Z-210910T1200Z/ Shasta-Trinity National Forest in Siskiyou County- 716 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT FOR STRONG GUSTY WIND WITH LOW RH AND ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 282... * Impacts: Lightning and high fire danger will likely result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. * Affected area: In Northern CA...Fire Weather Zone 282. * Wind: South winds 8 to 15 mph with gusts up to 30 mph Thursday afternoon. Strong, gusty and erratic winds expected near thunderstorms or showers. * Thunderstorms: Isolated to scattered thunderstorms may develop late Thursday afternoon and continue overnight. Storms are expected to initially be dry, with strong, gusty outflows then may moisten up Thursday night and bring rainfall along with gusty winds. * Humidity: 15 to 20 percent Thursday afternoon. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ ORZ617-623-091430- /O.CON.KMFR.FW.A.0037.210910T1200Z-210910T2200Z/ Umpqua National Forest-Southern Oregon Cascades- 716 PM PDT Wed Sep 8 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY AFTERNOON FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONES 617 AND 623... * 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 Southwest OR...Fire Weather Zones 617 and 623. * Thunderstorms: Scattered thunderstorms with abundant lightning may develop late early Friday morning and continue into Friday afternoon. Strong, gusty and erratic winds expected near thunderstorms or showers. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ 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 |
|---|---|---|---|---|
| Sep 8, 2:31 PM PDT | Fire Weather Watch | MFR | Douglas, Harney, Jackson, Klamath, Lake, Lane | 23 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.