Alert archive / Oregon / Red Flag Warnings in 2020
Red Flag Warning 7, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jul 28, 2020, 1:04 PM PDT for Modoc County, Siskiyou County, California; Jackson County, Klamath County, Lake County, Oregon. It took effect at Jul 29, 2020, 2:00 PM PDT. It was in force for 54 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 28, 2020, 1:04 PM PDT (20:04 UTC)
- In effect from
- Jul 29, 2020, 2:00 PM PDT
- Expired
- Jul 31, 2020, 8:00 PM PDT
- In force
- 54 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA, Jackson County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 93 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 100 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
- 2248 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
174 WWUS86 KMFR 282004 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 104 PM PDT Tue Jul 28 2020 ORZ624-291300- /O.NEW.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ /O.CON.KMFR.FW.W.0006.200728T2100Z-200729T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 104 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR NORTHERN FIRE WEATHER ZONE 624... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR EASTERN FIRE WEATHER ZONE 624... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 8 PM PDT Wednesday. * Today's thunderstorms: Isolated to scattered thunderstorms are expected over the area again this afternoon and evening with a majority of activity northeastward from Calimus RAWS. * Wednesday Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Wednesday Humidity: As low as 10 percent. * Impacts: Lightning and high fire danger will likely result in new fire starts this afternoon and evening. Gusty thunderstorm winds could contribute to fire spread. Strong, gusty wind with low relative humidity and high fire danger Wednesday will likely contribute to a significant spread of any new or existing fires. * Affected area: In South Central OR...Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. && $$ ORZ622-291300- /O.NEW.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ Eastern Rogue Valley- 104 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 8 PM PDT Wednesday. * Wind: Northwest 10 to 15 mph with gusts to 20 mph. * Humidity: As low as 14 percent. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of any new or existing fires. * Affected area: In Southwest OR...Fire Weather Zone 622 including the Rogue Valley. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. && $$ CAZ284-285-291300- /O.NEW.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 104 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR PORTIONS OF FIRE WEATHER ZONES 284 AND 285... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 8 PM PDT Wednesday. * 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...Most of Fire Weather Zone 285 and northeastern Fire Weather Zone 284 to include the Caldwell wildfire. * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: 7 to 12 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. && $$ ORZ625-290300- /O.CON.KMFR.FW.W.0006.200728T2100Z-200729T0300Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 104 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625... * Impacts: Lightning and high fire danger will likely result in new fire starts. Gusty thunderstorm winds could contribute to fire spread. Despite rainfall, initial attack resources could be overwhelmed and holdover fires are possible. * Affected area: In South Central OR...Northern Fire Weather Zone 625. * Thunderstorms: Isolated to scattered thunderstorms are expected over the area again this afternoon and evening with a majority of activity east and northeastward from Summer Lake and Paisley. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. $$ Visit us at www.weather.gov/Medford
9 follow-up statements
057 WWUS86 KMFR 290325 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 825 PM PDT Tue Jul 28 2020 ORZ624-300300- /O.EXP.KMFR.FW.W.0006.000000T0000Z-200729T0300Z/ /O.CON.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 825 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... ...RED FLAG WARNING HAS EXPIRED FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 10 percent. * Impacts: Strong, gusty wind with low relative humidity and high fire danger Wednesday will likely contribute to a significant spread of any new or existing fires.. * Affected area: In South Central OR...Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. && $$ ORZ625-290430- /O.EXP.KMFR.FW.W.0006.000000T0000Z-200729T0300Z/ South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 825 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING HAS EXPIRED FOR ABUNDANT LIGHTNING ON DRY FUELS FOR FIRE WEATHER ZONE 625... No thunderstorms are expected in fire weather zone 625 tomorrow. $$ ORZ622-300300- /O.CON.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ Eastern Rogue Valley- 825 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... * Wind: Northwest 10 to 15 mph. * Humidity: As low as 14 percent. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of any new or existing fires. * Affected area: In Southwest OR...Fire Weather Zone 622. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-300300- /O.CON.KMFR.FW.W.0007.200729T2100Z-200730T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 825 PM PDT Tue Jul 28 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM PDT WEDNESDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Impacts: FOR Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zones 284 and 285. * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: 7 to 12 percent. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
173 WWUS86 KMFR 292118 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 218 PM PDT Wed Jul 29 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ624-301300- /O.EXT.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 218 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR EASTERN FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * 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...Eastern Fire Weather Zone 624 to include Beatty...Bly...Lakeview...north to Summer Lake. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-301300- /O.EXT.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 218 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Portions of Fire Weather Zone 284 and most of Fire Weather Zone 285 to include the Caldwell wildfire and the rest of the July Complex. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ ORZ622-300300- /O.CON.KMFR.FW.W.0007.000000T0000Z-200730T0300Z/ Eastern Rogue Valley- 218 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... * Wind: Northwest 10 to 15 mph with gusts to 20 mph. * Humidity: As low as 13 percent. * 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 much of the Rogue and Bear Creek Valleys. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
087 WWUS86 KMFR 300306 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 806 PM PDT Wed Jul 29 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ622-300415- /O.EXP.KMFR.FW.W.0007.000000T0000Z-200730T0300Z/ Eastern Rogue Valley- 806 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... Winds will continue to diminish into the evening. $$ ORZ624-301515- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 806 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * 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...Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-301515- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 806 PM PDT Wed Jul 29 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 5 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zones 284 and 285. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
171 WWUS86 KMFR 301401 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 701 AM PDT Thu Jul 30 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ624-310500- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 701 AM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * 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...Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-310500- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 701 AM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 7 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zones 284 and 285. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
846 WWUS86 KMFR 301448 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 748 AM PDT Thu Jul 30 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ622-310300- /O.EXB.KMFR.FW.W.0007.200730T2100Z-200731T0300Z/ Eastern Rogue Valley- 748 AM PDT Thu Jul 30 2020 ...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. * Wind: Northwest 10 to 15 mph with gusts to 20 mph. * Humidity: As low as 13 percent. * 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...Lower elevation portions of Fire Weather Zone 622 including parts of the Rogue and Bear Creek Valleys. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. && $$ ORZ624-310300- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 748 AM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In South Central OR...Eastern Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-310300- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 748 AM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 7 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT through Friday evening. * Haines Index: 6 on Thursday afternoon which means very dry and unstable and can support plume-dominated fires. * 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 Zones 284 and 285. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
000 WWUS86 KMFR 302047 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 147 PM PDT Thu Jul 30 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ622-310300- /O.CON.KMFR.FW.W.0007.200730T2100Z-200731T0300Z/ Eastern Rogue Valley- 147 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... * Wind: Northwest 10 to 15 mph with gusts to 20 mph. * Humidity: As low as 13 percent. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...Lower elevation portions of Fire Weather Zone622 including parts of the Rogue and Bear Creek Valleys. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ ORZ624-311315- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 147 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and evening and again Friday afternoon and evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * 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...Eastern Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-311315- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 147 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 7 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and evening and again Friday afternoon and evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Fire Weather Zones 284 and 285. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
869 WWUS86 KMFR 310304 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 804 PM PDT Thu Jul 30 2020 ...Long-duration critical fire weather pattern for areas east of the Cascades... ORZ622-310415- /O.EXP.KMFR.FW.W.0007.000000T0000Z-200731T0300Z/ Eastern Rogue Valley- 804 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... Gusty west to northwest winds will slowly diminish this evening with humidities increasing. $$ ORZ624-312315- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 804 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and evening and again Friday afternoon and evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In South Central OR...Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-312315- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 804 PM PDT Thu Jul 30 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 7 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and evening and again Friday afternoon and evening. * Haines Index: 6 this afternoon which means very dry and unstable and can support plume-dominated fires. * 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 Zones 284 and 285. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
624 WWUS86 KMFR 312010 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 110 PM PDT Fri Jul 31 2020 ORZ622-010300- /O.EXB.KMFR.FW.W.0007.200731T2200Z-200801T0300Z/ Eastern Rogue Valley- 110 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect until 8 PM PDT this evening. * Wind: Northwest 8 to 12 mph with gusts to 20 mph. * Humidity: As low as 13 percent. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...Portions of Fire Weather Zone 622 including Medford...Ashland...Eagle Point. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. && $$ ORZ624-010300- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 110 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 8 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and 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 South Central OR...Eastern Fire Weather Zone 624. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ CAZ284-285-010300- /O.CON.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 110 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... * Wind: Southwest 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 7 percent. * Timing: Critical fire weather conditions are expected generally between 2 PM and 8 PM PDT this afternoon and evening. * Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Northern CA...Portions of Fire Weather Zones 284 and 285 to include the Caldwell Fire. * View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD Precautionary/preparedness actions... * A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. * One less spark, one less wildfire. $$ Visit us at www.weather.gov/Medford
129 WWUS86 KMFR 010252 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 752 PM PDT Fri Jul 31 2020 ORZ624-010400- /O.EXP.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 752 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 624... Gusty winds have started to decrease across the area, and relative humidity has started to increase. Near critical conditions will be possible again tomorrow for these areas, but humidity will slowly trend higher through the weekend. $$ CAZ284-285-010400- /O.EXP.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Siskiyou County from the Cascade Mountains East and South to Mt Shasta-Modoc County Except for the Surprise Valley- 752 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 284 AND 285... Gusty winds have started to decrease across the area, and relative humidity has started to increase. Near critical conditions will be possible again tomorrow for these areas, but humidity will slowly trend higher through the weekend. $$ ORZ622-010400- /O.EXP.KMFR.FW.W.0007.000000T0000Z-200801T0300Z/ Eastern Rogue Valley- 752 PM PDT Fri Jul 31 2020 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONE 622... Gusty winds have started to decrease across the area, and relative humidity has started to increase. Near critical conditions will be possible again tomorrow for these areas, but humidity will slowly trend higher through the weekend. $$ Visit us at www.weather.gov/Medford
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Medford, OR wrote its last area forecast discussion before this red flag warning went out at Jul 28, 8:51 AM PDT, 4 hours 13 minutes earlier.
Area forecast discussion, Jul 28, 8:51 AM PDT, 4 hours 13 minutes before
Area Forecast Discussion
National Weather Service Medford OR
851 AM PDT Tue Jul 28 2020
.UPDATE...
The forecast remains on track today with scattered thunderstorms
in northern Lake and Klamath Counties. The one notable new feature
is a new large fire in south western Siskiyou County. This fire
will likely add to the smoke impacts and hazy skies across the
region. The valleys in western Siskiyou County will likely see
some dense smoke in the coming days. With the HRRR Smoke model
down, we will spend a fair amount of time on the smoke forecast
today.
-Smith
&&
.DISCUSSION.../Issued 615 AM PDT Tue Jul 28 2020/
Current conditions across southern Oregon and
northern California are showing some clouds along the coast
associated with the marine push. Additionally, lingering cloud
cover from evening thunderstorms are moving northward and
dissipating. Thunderstorms were plentiful across most areas along
and south of the Siskiyous and along the Cascades and east.
Overall, we've had 536 lightning strikes in the past 24 hours, and
only one or two of them fell outside of these areas (Illinois
Valley and just north of Mt. Ashland).
Today will be similar to yesterday, with hot temperatures nearly
everywhere (except for the immediate coast). With the lows this
morning expected to be warm, have considered issuing a heat
advisory for the Rogue Valley. It is borderline, but have
ultimately would like to wait for our morning low to come in. Some
increased cloud cover may keep temperatures a degree or two
cooler than what is in the forecast. Still, people should
anticipate hot conditions and take precautions against
overexerting themselves or subjecting themselves to heat
exhaustion or heat stroke.
The aforementioned cloud cover will be associated with
thunderstorms yet again. Most of our thunderstorm coverage will be
east of the Cascades in Oregon, but a few small areas over
terrain in Siskiyou County could see a pop up thunderstorm as
well. Overall, expect today to have less thunderstorms and less
lightning strikes. The storms were slow enough moving that they
dumped significant rains in the area, setting new daily rainfall
records at Montague and Mt. Shasta City. Still, the thunderstorm
potential is still high enough to warrant a red flag warning.
Please see the fire weather discussion for more details.
Tomorrow and Thursday will continue in its similarities in
respect to temperatures, but thunderstorm coverage will be a lot
less. We are carrying a slight chance for a stray thunderstorm
north of Crater Lake in the Cascades on Wednesday, with conditions
largely stabilizing by Thursday.
Then, on Friday, a dry cold front pushes through and our thermal
trough dissipates, and temperatures return to normal for most of
the area. This will continue through the weekend with continued
stable conditions and limited precipitation chances.
-Schaaf
&&
.AVIATION...For the 28/12Z TAF Cycle...Along much of the
Southern Oregon coast and in the coastal valleys, LIFR and IFR cigs
and areas of IFR/MVFR vis will continue through much of the morning.
Conditions will improve to VFR in the early afternoon with some
local IFR possible into mid afternoon at the immediate coast. Low
clouds and fog are expected to return in the early evening to the
coastal areas.
Elsewhere inland, VFR conditions will continue through the TAf
period.
Isolated thunderstorms will still be a concern between 21z (2 pm
pdt) and 3z (8pm pdt) in portions of Northern California and east of
the Cascades. Keep in mind any of these storms could bring brief
heavy downpours and small hail. Also gusty erratic winds are
possible near any storms.
Visibility will be reduced at times for areas east of the Cascades (
especially in eastern Siskiyou and Modoc Counties as well as
southern Klamath and southern Lake counties) due to smoke from the
Caldwell fire 35mi SSE KLMT. Smoke may be thick at times with
possible reduction of 1-3SM in smoke and local terrain obscuration.
-CC
&&
.MARINE...Updated 830 AM PDT Tuesday 28 July 2020...North winds will
increase this morning into this afternoon for areas with small craft
advisory winds and steep seas developing south of Cape Blanco. Winds
and seas will decrease on Wednesday with conditions expected to
lower below small craft advisory levels by Wednesday afternoon.
Relatively light winds and seas are expected for the rest of the
week with winds shifting to the south Thursday and Friday as a weak
cold front moves across the waters. North winds may increase again
early next week.
-CC/Keene
&&
.FIRE WEATHER...Updated 200 AM PDT Tuesday 28 July 2020...
Lingering instability and moisture will lead to isolated to
scattered thunderstorms again Tuesday afternoon and evening, but
it won't be as active as yesterday and it will be mostly from the
Cascades east over northern Lake and Klamath counties. A Red Flag
warning is in effect for portions of northern Lake and northern
Klamath counties later this afternoon.
Isolated thunderstorms may develop along the Cascade crest Wednesday
afternoon and evening. The rest of the week looks dry. It will be
hot, with similar temperatures as yesterday. It will be breezy in
the afternoons and evenings Wednesday through Friday, but Friday
may see stronger winds due to an incoming weak cold front.
&&
.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Red Flag Warning from 2 PM this afternoon to 8 PM PDT this
evening for ORZ624-625.
CA...None.
Pacific Coastal Waters...Small Craft Advisory until 5 AM PDT Wednesday for PZZ356.
Small Craft Advisory until 11 AM PDT Wednesday for PZZ376.The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:19 PM PDT | Special Weather Statement | MFR | Siskiyou | 26 min |
Nearby
Red Flag Warnings in Oregon, 2020Red Flag Warnings in California, 2020Every red flag warning in 2020
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.