Alert archive / Oregon / Red Flag Warnings in 2021

Red Flag Warning 14, NWS Pendleton, OR

August 14, 2021

NWS Pendleton, OR issued this red flag warning at Aug 14, 2021, 8:28 AM PDT. It took effect at Aug 15, 2021, 1:00 PM PDT. It was in force for 7 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
Aug 14, 2021, 8:28 AM PDT (15:28 UTC)
In effect from
Aug 15, 2021, 1:00 PM PDT
Expired
Aug 15, 2021, 8:26 PM PDT
In force
7 hr
Issued by
NWS Pendleton, OR

The text

As transmitted.

179 
WWUS86 KPDT 141528
RFWPDT

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
828 AM PDT Sat Aug 14 2021

...DRY AND BREEZY TO GUSTY CONDITIONS IN THE LOWER COLUMBIA BASIN
OF OREGON AS WELL AS THROUGH THE EASTERN COLUMBIA RIVER GORGE
SUNDAY...

.Breezy to gusty westerly winds will develop Sunday afternoon and
evening as a weather system approaches the region. Increasing
westerly winds combined with low relative humidities in the
afternoon and evening of Sunday will elevate fire weather
conditions to critical through the eastern Columbia River Gorge 
and across portions of the Lower Columbia Basin of Oregon.

ORZ639-641-WAZ639-151400-
/O.UPG.KPDT.FW.A.0012.210815T2000Z-210816T0600Z/
/O.NEW.KPDT.FW.W.0014.210815T2000Z-210816T0600Z/
East Slopes of the Northern Oregon Cascades-
Lower Columbia Basin of Oregon-
East Slopes of the Southern Washington Cascades-
828 AM PDT Sat Aug 14 2021

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 11 PM PDT SUNDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES OR639,
OR641, AND WA639...

The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 1 PM to 11 PM PDT Sunday. The Fire Weather Watch is no
longer in effect.

* AFFECTED AREA...Fire Weather Zones 639 East Slopes of the 
  Northern Oregon Cascades, 639 East Slopes of the Southern 
  Washington Cascades and 641 Lower Columbia Basin of Oregon.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 15 percent.

* IMPACTS...The gusty winds combined with low relative 
  humidities will lead to critical fire weather danger, allowing 
  for rapid spread of existing fires and any new fires.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
3 follow-up statements
830 
WWUS86 KPDT 150956
RFWPDT

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
256 AM PDT Sun Aug 15 2021

...DRY AND BREEZY TO GUSTY CONDITIONS IN THE LOWER COLUMBIA BASIN
OF OREGON AS WELL AS THROUGH THE EASTERN COLUMBIA RIVER GORGE
THIS AFTERNOON AND EVENING...

.Breezy to gusty westerly winds will develop this afternoon and 
evening as a weather system approaches the region. Increasing 
westerly winds combined with low relative humidities later today 
will elevate fire weather conditions to critical through the 
eastern Columbia River Gorge and across portions of the Lower 
Columbia Basin of Oregon.

ORZ639-641-WAZ639-152200-
/O.CON.KPDT.FW.W.0014.210815T2000Z-210816T0600Z/
East Slopes of the Northern Oregon Cascades-
Lower Columbia Basin of Oregon-
East Slopes of the Southern Washington Cascades-
256 AM PDT Sun Aug 15 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONES OR639, OR641, AND WA639...

* AFFECTED AREA...Fire Weather Zones 639 East Slopes of the 
  Northern Oregon Cascades, 639 East Slopes of the Southern 
  Washington Cascades and 641 Lower Columbia Basin of Oregon.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 15 percent.

* IMPACTS...The gusty winds combined with low relative 
  humidities will lead to critical fire weather danger, allowing 
  for rapid spread of existing fires and any new fires.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
686 
WWUS86 KPDT 152119
RFWPDT

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
219 PM PDT Sun Aug 15 2021

...DRY AND BREEZY CONDITIONS IN THE LOWER COLUMBIA BASIN OF 
OREGON AND THE EASTERN COLUMBIA RIVER GORGE THIS AFTERNOON AND 
EVENING...

.Breezy to windy westerly winds will continue this afternoon and 
evening as a weather system approaches the region. Increasing 
westerly winds combined with low relative humidities later today 
will elevate fire weather conditions to critical through the 
eastern Columbia River Gorge and across portions of the Lower 
Columbia Basin of Oregon.

ORZ639-641-WAZ639-160600-
/O.CON.KPDT.FW.W.0014.000000T0000Z-210816T0600Z/
East Slopes of the Northern Oregon Cascades-
Lower Columbia Basin of Oregon-
East Slopes of the Southern Washington Cascades-
219 PM PDT Sun Aug 15 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
OR639, OR641, AND WA639...

* AFFECTED AREA...Fire Weather Zones 639 East Slopes of the 
  Northern Oregon Cascades, 639 East Slopes of the Southern 
  Washington Cascades and 641 Lower Columbia Basin of Oregon.

* WINDS...West 10 to 20 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 13 percent.

* IMPACTS...The gusty winds combined with low relative 
  humidities will lead to critical fire weather danger, allowing 
  for rapid spread of existing fires and any new fires.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
226 
WWUS86 KPDT 160326
RFWPDT

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
826 PM PDT Sun Aug 15 2021


ORZ639-641-WAZ639-160430-
/O.CAN.KPDT.FW.W.0014.000000T0000Z-210816T0600Z/
East Slopes of the Northern Oregon Cascades-
Lower Columbia Basin of Oregon-
East Slopes of the Southern Washington Cascades-
826 PM PDT Sun Aug 15 2021

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES OR639, OR641, AND WA639...

The National Weather Service in Pendleton has cancelled the Red
Flag Warning.

Winds have decreased over much of the area and with sunset,
temperatures have begun to drop. As a result RH values will slowly
rise. While winds may remain gusty in a few locations for a few
hours, widespread red flag conditions are no longer expected.  

Therefore, the red flag warning has been cancelled.

$$

The office that day

Everything else NWS Pendleton, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 4:33 AM PDTFire Weather WatchPDT4 hr

Nearby

Red Flag Warnings in Oregon, 2021Red Flag Warnings in Washington, 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.