Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 29, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jul 23, 2021, 11:13 AM PDT for Klamath County, Lake County, Oregon. It took effect at Jul 24, 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 23, 2021, 11:13 AM PDT (18:13 UTC)
- In effect from
- Jul 24, 2021, 2:00 PM PDT
- Expired
- Jul 24, 2021, 8:00 PM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
Counties Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 158 km from the middle of the area, began a volume at 18:10 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, 6.2 hours before the alert went out and 152 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
- 1940 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
184 WWUS86 KMFR 231813 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1113 AM PDT Fri Jul 23 2021 ORZ624-241200- /O.NEW.KMFR.FW.W.0029.210724T2100Z-210725T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 1113 AM PDT Fri Jul 23 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SATURDAY FOR HAINES 6 OVER THE BOOTLEG FIRE IN 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 Saturday. * Impacts: Very dry and unstable conditions can support extreme fire behavior. Plume domination is possible with locally- generated erratic and gusty winds. Spotting could be problematic. * Affected area: In South Central OR...The Bootleg Fire in Fire Weather Zone 624. * Wind: Southwest to west 5 to 15 mph. Peak gusts of 20 mph. * Humidity: As low as 10 percent. 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. A Red Flag Warning 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. && $$ Visit us at www.weather.gov/Medford
2 follow-up statements
399 WWUS86 KMFR 241003 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 303 AM PDT Sat Jul 24 2021 ORZ624-250300- /O.CON.KMFR.FW.W.0029.210724T2100Z-210725T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 303 AM PDT Sat Jul 24 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR HAINES 6 OVER THE BOOTLEG FIRE IN FIRE WEATHER ZONE 624... * Impacts: Very dry and unstable conditions can support extreme fire behavior. Plume domination is possible with locally- generated erratic and gusty winds. Spotting could be problematic. * Affected area: In South Central OR...The Bootleg Fire in Fire Weather Zone 624. * Wind: Southwest to west 5 to 15 mph. Peak gusts of 20 mph. * Humidity: As low as 10 percent. Precautionary/preparedness actions... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. These conditions promote rapid spread of fire which may become life threatening. Evacuate if ordered to, or if a fire threatens. && $$ Visit us at www.weather.gov/Medford
781 WWUS86 KMFR 250255 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 755 PM PDT Sat Jul 24 2021 ORZ624-250400- /O.EXP.KMFR.FW.W.0029.000000T0000Z-210725T0300Z/ Klamath Basin and the Fremont-Winema National Forest- 755 PM PDT Sat Jul 24 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR FIRE WEATHER ZONE 624... $$ Visit us at www.weather.gov/Medford
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.