Alert archive / Oregon / Red Flag Warnings in 2021
Red Flag Warning 51, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Sep 25, 2021, 2:12 PM PDT for Harney County, Klamath County, Lake County, Oregon; Modoc County, California. It took effect at Sep 26, 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 25, 2021, 2:12 PM PDT (21:12 UTC)
- In effect from
- Sep 26, 2021, 2:00 PM PDT
- Expired
- Sep 26, 2021, 7:00 PM PDT
- In force
- 5 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Harney County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 194 km from the middle of the area, began a volume at 21:15 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, 9.2 hours before the alert went out and 195 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
- 2530 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
229 WWUS86 KMFR 252112 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 212 PM PDT Sat Sep 25 2021 CAZ285-ORZ624-625-261300- /O.UPG.KMFR.FW.A.0040.210926T1600Z-210927T0300Z/ /O.NEW.KMFR.FW.W.0051.210926T2100Z-210927T0200Z/ Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 212 PM PDT Sat Sep 25 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 7 PM PDT SUNDAY FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285...624 AND 625... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 7 PM PDT Sunday. The Fire Weather Watch is no longer in effect. * 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 Northern CA...The eastern sections of zone 285 including the Warner Mountains. In South Central OR...The south eastern sections of zones 624 and 625 including Winter Rim and sections of the Warner Mountains. * Wind: Southwest 20 to 30 mph with gusts up to 40 mph. * Humidity: As low as 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 expected soon. 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
3 follow-up statements
687
WWUS86 KMFR 261200
RFWMFR
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
500 AM PDT Sun Sep 26 2021
CAZ285-ORZ624-625-270000-
/O.CON.KMFR.FW.W.0051.210926T2100Z-210927T0200Z/
Modoc County Except for the Surprise Valley-
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern Lake
and Western Harney Counties-
500 AM PDT Sun Sep 26 2021
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
7 PM PDT THIS EVENING FOR STRONG GUSTY WIND WITH LOW RH FOR
FIRE WEATHER ZONES 285...624 AND 625...
* 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 Northern CA Fire Zone....Eastern sections of zone 285
including the Warner Mountains.
In South Central OR Fire Zones...Southeastern sections of zones
624 and 625 including the Winter Rim
and sections of the Warner Mountains.
* Wind: Southwest 20 to 30 mph with gusts up to 40 mph.
* Humidity: As low as 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 expected soon. 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/Medford268
WWUS86 KMFR 262144
RFWMFR
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
244 PM PDT Sun Sep 26 2021
CAZ285-ORZ624-625-270200-
/O.CON.KMFR.FW.W.0051.000000T0000Z-210927T0200Z/
Modoc County Except for the Surprise Valley-
Klamath Basin and the Fremont-Winema National Forest-
South Central Oregon Desert including the BLM Land in Eastern Lake
and Western Harney Counties-
244 PM PDT Sun Sep 26 2021
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS EVENING
FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285...
624 AND 625...
* 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 Northern CA Fire Zone....Eastern sections of zone 285
including the Warner Mountains.
In South Central OR Fire Zones...Southeastern sections of zones
624 and 625 including the Winter Rim
and sections of the Warner Mountains.
* Wind: Southwest 20 to 30 mph with gusts up to 40 mph.
* Humidity: As low as 10 percent.
* View the hazard area in detail at:
https://www.wrh.noaa.gov/mfr/HAZARD
$$
Visit us at www.weather.gov/Medford118 WWUS86 KMFR 270202 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 702 PM PDT Sun Sep 26 2021 CAZ285-ORZ624-625-270315- /O.EXP.KMFR.FW.W.0051.000000T0000Z-210927T0200Z/ Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 702 PM PDT Sun Sep 26 2021 ...RED FLAG WARNING HAS EXPIRED FOR STRONG GUSTY WIND WITH LOW RH FOR FIRE WEATHER ZONES 285...624 AND 625... The Red Flag Warning has expired. Southwest winds ahead of a cold front will be gusty and strong again on Monday, but humidity values will be higher. $$ 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 25, 5:00 AM PDT | Fire Weather Watch | MFR | Harney, Klamath, Lake | 9 hr |
| Sep 25, 1:37 PM PDT | Small Craft Advisory | MFR | 25 hr |
Nearby
Red Flag Warnings in Oregon, 2021Red 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; radar from the NEXRAD Level II archive.