Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 6, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jun 17, 2021, 1:17 PM PDT for Modoc County, California. It took effect at Jun 18, 2021, 3:00 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
- Jun 17, 2021, 1:17 PM PDT (20:17 UTC)
- In effect from
- Jun 18, 2021, 3:00 PM PDT
- Expired
- Jun 18, 2021, 9:00 PM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
County Modoc County, CA
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 8.3 hours before the alert went out and 192 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
- 1736 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
616 WWUS86 KMFR 172017 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 117 PM PDT Thu Jun 17 2021 ...Gusty Wind with Low Relative Humidity expected in Modoc County Friday afternoon and early evening with critical conditions possible again on Saturday... CAZ285-180830- /O.UPG.KMFR.FW.A.0005.210618T2200Z-210619T0400Z/ /O.NEW.KMFR.FW.W.0006.210618T2200Z-210619T0400Z/ /O.NEW.KMFR.FW.A.0006.210619T2200Z-210620T0400Z/ Modoc County Except for the Surprise Valley- 117 PM PDT Thu Jun 17 2021 ...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM PDT FRIDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... ...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 3 PM to 9 PM PDT Friday. A Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Saturday afternoon through Saturday evening. The Fire Weather Watch is no longer in effect. * 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. This includes the Modoc National Forest and the communities of Alturas, Davis Creek, Willow Ranch, Canby, Lookout, Adin and Likely. * Wind: West to northwest 10 to 15 mph with gusts of 25 to 30 mph. * Humidity: 7 to 10 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. 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
3 follow-up statements
907 WWUS86 KMFR 180957 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 257 AM PDT Fri Jun 18 2021 ...Gusty Wind with Low Relative Humidity expected in Modoc County Friday afternoon and early evening with critical conditions possible again on Saturday... CAZ285-182300- /O.CON.KMFR.FW.W.0006.210618T2200Z-210619T0400Z/ /O.CON.KMFR.FW.A.0006.210619T2200Z-210620T0400Z/ Modoc County Except for the Surprise Valley- 257 AM PDT Fri Jun 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING FOR STRONG GUSTY WIND AND LOW HUMIDITY 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. This includes the Modoc National Forest and the communities of Alturas, Davis Creek, Willow Ranch, Canby, Lookout, Adin and Likely. * Wind: West to northwest 10 to 15 mph with gusts of 25 to 30 mph. * Humidity: 7 to 10 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. 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
602 WWUS86 KMFR 182058 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 158 PM PDT Fri Jun 18 2021 ...Gusty Wind with Low Relative Humidity expected in Modoc County this and Saturday afternoon and early evening... CAZ285-192100- /O.UPG.KMFR.FW.A.0006.210619T2200Z-210620T0400Z/ /O.NEW.KMFR.FW.W.0007.210619T2200Z-210620T0400Z/ /O.CON.KMFR.FW.W.0006.210618T2200Z-210619T0400Z/ Modoc County Except for the Surprise Valley- 158 PM PDT Fri Jun 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... ...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM PDT SATURDAY 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 to 9 PM PDT Saturday. The Fire Weather Watch is no longer in effect. * 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 to northwest 10 to 15 mph with gusts of 25 to 30 mph today and gusts of 20 to 25 Saturday. * Humidity: 7 to 10 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * 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. && $$ Visit us at www.weather.gov/Medford
885 WWUS86 KMFR 190408 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 908 PM PDT Fri Jun 18 2021 ...Gusty Wind with Low Relative Humidity expected in Modoc County Saturday afternoon and early evening... CAZ285-192200- /O.EXP.KMFR.FW.W.0006.000000T0000Z-210619T0400Z/ /O.CON.KMFR.FW.W.0007.210619T2200Z-210620T0400Z/ Modoc County Except for the Surprise Valley- 908 PM PDT Fri Jun 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT SATURDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 285... * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zone 285. * Wind: Northwest 10 to 15 mph with gusts up to 25 mph. * Humidity: 7 to 10 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... Avoid tossing burning cigarettes on the ground, parking hot vehicles on dry vegetation, and using equipment that can cause sparks. Follow all fire restrictions. Find links to restrictions at weather.gov/medford/wildfire. One less spark, one less wildfire. Gather your fire evacuation kit now. Collect essentials you don't want to lose and prioritize your checklist. Visit ready.gov/kit for more information. Familiarize yourself with your evacuation plan. Where will you go? How will you get there? Who will you call to let others know your are safe? Visit ready.gov/wildfires for more information. A Red Flag Warning does not mean there is a fire. It means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ Visit us at www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 12:46 PM PDT | Excessive Heat Watch | MFR | Siskiyou | 25 hr |
| Jun 17, 1:17 PM PDT | Fire Weather Watch | MFR | Modoc | 25 hr |
Nearby
Red Flag Warnings in California, 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.