Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 17, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jul 7, 2021, 4:14 AM PDT for Modoc County, California; Jackson County, Oregon. It took effect at Jul 7, 2021, 2:00 PM PDT. It was in force for 6 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 7, 2021, 4:14 AM PDT (11:14 UTC)
- In effect from
- Jul 7, 2021, 2:00 PM PDT
- Expired
- Jul 7, 2021, 8:08 PM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Jackson County, OR
The radar
The Medford radar (KMAX), 82 km from the middle of the area, began a volume at 11:17 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 00:00Z, 11.2 hours before the alert went out and 97 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
- 3574 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -75 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
186 WWUS86 KMFR 071114 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 414 AM PDT Wed Jul 7 2021 ...Gusty Wind With Very Low RH Today and Especially Thursday... .A drier air mass combined with gusty winds will lead to critical fire weather conditions across the Modoc today. These conditions are likely Thursday afternoon and evening across the Modoc, Fremont-Winema National Forest, and portions of Klamath National Forest. CAZ285-072230- /O.NEW.KMFR.FW.W.0017.210707T2200Z-210708T0400Z/ /O.CON.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ Modoc County Except for the Surprise Valley- 414 AM PDT Wed Jul 7 2021 ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 3 PM this afternoon to 9 PM PDT this evening. * Impacts: Strong, gusty wind with low relative humidity and critically dry vegetation will increase the spread potential of any new and existing fires. * Affected area: In Northern CA...Most of Fire Weather Zone 285. * Wind: West 10 to 15 mph with gusts 20 to 30 mph. * Humidity: 5 to 10 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * 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. && $$ CAZ284-ORZ624-072230- /O.CON.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Klamath Basin and the Fremont-Winema National Forest- 414 AM PDT Wed Jul 7 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 624... * Impacts: Strong, gusty wind with low relative humidity and critically dry vegetation will increase the spread potential of any new and existing fires. * Affected area: In Northern CA Fire Zone....284. In South Central OR Fire Zone....624. * Wind: West 10 to 20 mph with gusts 20 to 35 mph. * Humidity: 5 to 14 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ BTL Visit us at www.weather.gov/Medford
3 follow-up statements
015 WWUS86 KMFR 071518 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 818 AM PDT Wed Jul 7 2021 ...Gusty Wind With Very Low RH Today and Especially Thursday... .A drier air mass combined with gusty winds will lead to critical fire weather conditions across the Modoc today. These conditions are likely Thursday afternoon and evening across the Modoc, Fremont-Winema National Forest, and portions of Klamath National Forest. ORZ622-080300- /O.EXB.KMFR.FW.W.0017.210707T2100Z-210708T0300Z/ Eastern Rogue Valley- 818 AM PDT Wed Jul 7 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM this afternoon to 8 PM PDT this evening. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...Fire Weather Zone 622, including all communities within the Rogue Valley. * Wind: Northwest 10-15 mph with gusts up to 25 mph. * Humidity: 11-15 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * 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. $$ CAZ285-080330- /O.CON.KMFR.FW.W.0017.210707T2200Z-210708T0400Z/ /O.CON.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ Modoc County Except for the Surprise Valley- 818 AM PDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zone 285. * Wind: West 10 to 20 mph with gusts up to 30 mph. * Humidity: 5 to 10 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. $$ CAZ284-ORZ624-080330- /O.CON.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Klamath Basin and the Fremont-Winema National Forest- 818 AM PDT Wed Jul 7 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 624... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA Fire Zone....284. In South Central OR Fire Zone....624. * Wind: West 10 to 15 mph with gusts up to 30 mph. * Humidity: 5 to 14 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
695 WWUS86 KMFR 072116 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 216 PM PDT Wed Jul 7 2021 ...Gusty Wind With Very Low RH Today and Especially Thursday... .A drier air mass combined with gusty winds will lead to critical fire weather conditions across the Modoc today. These conditions are likely Thursday afternoon and evening across the Modoc, Fremont-Winema National Forest, and portions of Klamath National Forest. CAZ285-080930- /O.UPG.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ /O.NEW.KMFR.FW.W.0018.210708T2100Z-210709T0300Z/ /O.CON.KMFR.FW.W.0017.210707T2200Z-210708T0400Z/ Modoc County Except for the Surprise Valley- 216 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 285... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...All of Fire Weather Zone 285. * Wind: West 10 to 20 mph with gusts up to 35 mph. * Humidity: 5 to 10 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * 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. && $$ CAZ284-ORZ624-080930- /O.UPG.KMFR.FW.A.0012.210708T2100Z-210709T0300Z/ /O.NEW.KMFR.FW.W.0018.210708T2100Z-210709T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Klamath Basin and the Fremont-Winema National Forest- 216 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 624... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA....Eastern Fire Zone 284. In South Central OR....Most of Fire Zone 624,. * Wind: West 10 to 15 mph with gusts up to 30 mph. * Humidity: 5 to 12 percent. * Additional Details: This Red Flag Warning includes the burn site of 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. && $$ ORZ625-080930- /O.NEW.KMFR.FW.W.0018.210708T2100Z-210709T0300Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 216 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 625... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In South Central OR...Southeast Fire Weather Zone 625. * Wind: West 10 to 20 mph with gusts up to 35 mph. * Humidity: 5 to 8 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ ORZ622-080300- /O.CON.KMFR.FW.W.0017.000000T0000Z-210708T0300Z/ Eastern Rogue Valley- 216 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...Fire Weather Zone 622. * Wind: Northwest 10 to 15 mph with gusts to 20 mph. * Humidity: 12 to 15 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * 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
343 WWUS86 KMFR 080308 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 808 PM PDT Wed Jul 7 2021 ...Gusty Wind With Very Low RH Thursday... .Critical fire weather conditions are likely Thursday afternoon and evening across the Modoc, Fremont-Winema National Forest, and portions of Klamath National Forest. CAZ285-082200- /O.CAN.KMFR.FW.W.0017.000000T0000Z-210708T0400Z/ /O.CON.KMFR.FW.W.0018.210708T2100Z-210709T0300Z/ Modoc County Except for the Surprise Valley- 808 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH... ...RED FLAG WARNING IS CANCELLED FOR STRONG GUSTY WIND WITH LOW RH THIS EVENING... The National Weather Service in Medford has cancelled the Red Flag Warning. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zone 285. * Wind: West 10 to 20 mph with gusts up to 35 mph. * Humidity: 5 to 10 percent. * Additional Details: The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * 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. && $$ ORZ622-080415- /O.EXP.KMFR.FW.W.0017.000000T0000Z-210708T0300Z/ Eastern Rogue Valley- 808 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... Winds have diminished and humidities are rising. $$ CAZ284-ORZ624-625-082200- /O.CON.KMFR.FW.W.0018.210708T2100Z-210709T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 808 PM PDT Wed Jul 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND WITH LOW RH... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA Fire Zone....284. In South Central OR Fire Zones...624...625. * Wind: West 10 to 20 mph with gusts up to 35 mph. * Humidity: 5 to 12 percent. * Additional Details: This warning includes the Bootleg and Juniper fire sites. The air mass will also be very dry and unstable above the surface leading to a moderate probability of plume dominated growth of new and existing fires. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD $$ 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 |
|---|---|---|---|---|
| Jul 7, 1:21 PM PDT | Excessive Heat Warning | MFR | Siskiyou | 6 days |
| Jul 7, 1:21 PM PDT | Heat Advisory | MFR | Modoc, Siskiyou | 6 days |
| Jul 7, 2:16 PM PDT | Red Flag Warning | MFR | Modoc, Siskiyou | 30 hr |
Nearby
Red Flag Warnings in California, 2021Red 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.