Alert archive / Oregon / Red Flag Warnings in 2021

Red Flag Warning 9, NWS Portland, OR

July 29, 2021

NWS Portland, OR issued this red flag warning at Jul 29, 2021, 2:20 PM PDT. It took effect at Jul 30, 2021, 11:00 AM PDT. It was in force for 13 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 29, 2021, 2:20 PM PDT (21:20 UTC)
In effect from
Jul 30, 2021, 11:00 AM PDT
Expired
Jul 31, 2021, 12:00 AM PDT
In force
13 hr
Issued by
NWS Portland, OR

The text

As transmitted.

408 
WWUS86 KPQR 292120
RFWPQR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Portland OR
220 PM PDT Thu Jul 29 2021

...THUNDERSTORMS WITH ABUNDANT LIGHTNING POSSIBLE THURSDAY AND
FRIDAY AFTERNOON AND EVENINGS OVER THE CASCADES...

.Southerly flow into the area will bring hotter temperatures
along with an increase in monsoonal moisture through Friday. This
pattern may result in terrain focused thunderstorms in the
afternoon and evening hours, along the Cascade Crest and will
likely extend into the Cascade Foothills. This may result in
numerous fire starts as fuels indices continue to be critically
low.

ORZ608-301600-
/O.UPG.KPQR.FW.A.0009.210730T1800Z-210731T0700Z/
/O.NEW.KPQR.FW.W.0009.210730T1800Z-210731T0700Z/
/O.CON.KPQR.FW.W.0008.000000T0000Z-210730T0600Z/
Willamette National Forest-
220 PM PDT Thu Jul 29 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR FIRE
WEATHER ZONE 608...
...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO MIDNIGHT PDT
FRIDAY NIGHT FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR
FIRE WEATHER ZONE 608...

The National Weather Service in Portland has issued a Red Flag
Warning for thunderstorms producing abundant lightning, which is
in effect from 11 AM Friday to midnight PDT Friday night. The
Fire Weather Watch is no longer in effect.

* Affected Area...In Oregon...Fire Weather Zone 608 Willamette 
  National Forest.

* Thunderstorms/LAL...Scattered showers and thunderstorms are 
  expected, with an LAL of 2 to 3.

* Outflow Winds...Gusty outflow winds possible near 
  thunderstorms.

* Impacts...The potential for abundant lightning and critically 
  dry fuels may result in numerous fire starts. Thunderstorm 
  outflow winds may result in erratic fire spread.

* Impacts...Frequent lightning and critically dry fuels may 
  result in numerous fire starts. Thunderstorm outflow winds may 
  result in erratic fire spread.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.

&&

$$

ORZ605>607-301600-
/O.UPG.KPQR.FW.A.0009.210730T1800Z-210731T0700Z/
/O.NEW.KPQR.FW.W.0009.210730T1800Z-210731T0700Z/
North Oregon Cascade Foothills-Central Oregon Cascade Foothills-
Mt. Hood National Forest West of Cascade Crest-
220 PM PDT Thu Jul 29 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO MIDNIGHT PDT
FRIDAY NIGHT FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR
FIRE WEATHER ZONES 605...606 AND 607...

The National Weather Service in Portland has issued a Red Flag
Warning for thunderstorms producing abundant lightning, which is
in effect from 11 AM Friday to midnight PDT Friday night. The
Fire Weather Watch is no longer in effect.

* Affected Area...In Oregon...Fire Weather Zone 605 North Oregon 
  Cascade Foothills...Fire Weather Zone 606 Central Oregon 
  Cascade Foothills and Fire Weather Zone 607 Mt. Hood National 
  Forest West of Cascade Crest.

* Thunderstorms/LAL...Scattered showers and thunderstorms are 
  expected, with an LAL of 2 to 3. LAL 3 conditions more 
  favorable in higher terrain.

* Outflow Winds...Gusty outflow winds possible near 
  thunderstorms.

* Impacts...Frequent lightning and critically dry fuels may 
  result in numerous fire starts. Thunderstorm outflow winds may 
  result in erratic fire spread.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.

&&

$$

For more information visit: http://weather.gov/portland
3 follow-up statements
865 
WWUS86 KPQR 300443
RFWPQR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Portland OR
943 PM PDT Thu Jul 29 2021

...THUNDERSTORMS WITH ABUNDANT LIGHTNING POSSIBLE THURSDAY AND
FRIDAY AFTERNOON AND EVENINGS OVER THE CASCADES...

.Southerly flow into the area will bring hotter temperatures
along with an increase in monsoonal moisture Friday. This pattern
may result in terrain focused thunderstorms in the afternoon and 
evening hours, along the Cascade Crest and will likely extend into
the Cascade Foothills. This may result in numerous fire starts as
fuels indices continue to be critically low.

ORZ608-302000-
/O.CAN.KPQR.FW.W.0008.000000T0000Z-210730T0600Z/
/O.CON.KPQR.FW.W.0009.210730T1800Z-210731T0700Z/
Willamette National Forest-
943 PM PDT Thu Jul 29 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM FRIDAY TO
MIDNIGHT PDT FRIDAY NIGHT FOR THUNDERSTORMS PRODUCING ABUNDANT
LIGHTNING FOR FIRE WEATHER ZONE 608...


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


* Affected Area...In Oregon...Fire Weather Zone 608 Willamette 
  National Forest.

* When...11 AM Friday to Midnight PDT Friday night. 

* Thunderstorms/LAL...Scattered showers and thunderstorms are 
  expected, with an LAL of 2 to 3.

* Outflow Winds...Gusty outflow winds possible near 
  thunderstorms.

* Impacts...The potential for abundant lightning and critically 
  dry fuels may result in numerous fire starts. Thunderstorm 
  outflow winds may result in erratic fire spread.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.

&&

$$

ORZ605>607-302000-
/O.CON.KPQR.FW.W.0009.210730T1800Z-210731T0700Z/
North Oregon Cascade Foothills-Central Oregon Cascade Foothills-
Mt. Hood National Forest West of Cascade Crest-
943 PM PDT Thu Jul 29 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM FRIDAY TO
MIDNIGHT PDT FRIDAY NIGHT FOR THUNDERSTORMS PRODUCING ABUNDANT
LIGHTNING FOR FIRE WEATHER ZONES 605...606 AND 607...


* Affected Area...In Oregon...Fire Weather Zone 605 North Oregon 
  Cascade Foothills...Fire Weather Zone 606 Central Oregon 
  Cascade Foothills and Fire Weather Zone 607 Mt. Hood National 
  Forest West of Cascade Crest.

* When...11 AM Friday to Midnight PDT Friday night. 

* Thunderstorms/LAL...Scattered showers and thunderstorms are
  expected, with an LAL of 2 to 3.

* Outflow Winds...Gusty outflow winds possible near 
  thunderstorms.

* Impacts...The potential for abundant lightning and critically 
  dry fuels may result in numerous fire starts. Thunderstorm 
  outflow winds may result in erratic fire spread.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.

&&

$$

For more information visit: http://weather.gov/portland
227 
WWUS86 KPQR 301931
RFWPQR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Portland OR
1231 PM PDT Fri Jul 30 2021

...THUNDERSTORMS WITH ABUNDANT LIGHTNING POSSIBLE THURSDAY AND
FRIDAY AFTERNOON AND EVENINGS OVER THE CASCADES...

.Southerly flow into the area will bring hotter temperatures
along with an increase in monsoonal moisture Friday. This pattern
may result in terrain focused thunderstorms in the afternoon and
evening hours, along the Cascade Crest and will likely extend
into the Cascade Foothills. This may result in numerous fire
starts as fuels indices continue to be critically low.

ORZ605>608-310630-
/O.CON.KPQR.FW.W.0009.000000T0000Z-210731T0700Z/
North Oregon Cascade Foothills-Central Oregon Cascade Foothills-
Mt. Hood National Forest West of Cascade Crest-
Willamette National Forest-
1231 PM PDT Fri Jul 30 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT
FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR FIRE WEATHER
ZONES 605...606...607 AND 608...

* Affected Area...In Oregon...Fire Weather Zone 605 North Oregon 
  Cascade Foothills...Fire Weather Zone 606 Central Oregon 
  Cascade Foothills...Fire Weather Zone 607 Mt. Hood National 
  Forest West of Cascade Crest and Fire Weather Zone 608 
  Willamette National Forest.

* When...Through Midnight PDT Friday night.

* Thunderstorms/LAL...Scattered showers and thunderstorms are 
  expected, with an LAL of 2 to 3.

* Outflow Winds...Gusty outflow winds possible near 
  thunderstorms.

* Impacts...The potential for abundant lightning and critically 
  dry fuels may result in numerous fire starts. Thunderstorm 
  outflow winds may result in erratic fire spread.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.

&&

$$

For more information visit: http://weather.gov/portland
610 
WWUS86 KPQR 310655
RFWPQR

URGENT - FIRE WEATHER MESSAGE
National Weather Service Portland OR
1155 PM PDT Fri Jul 30 2021

ORZ605>608-310800-
/O.EXP.KPQR.FW.W.0009.000000T0000Z-210731T0700Z/
North Oregon Cascade Foothills-Central Oregon Cascade Foothills-
Mt. Hood National Forest West of Cascade Crest-
Willamette National Forest-
1155 PM PDT Fri Jul 30 2021

...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT PDT TONIGHT FOR
THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR FIRE WEATHER ZONES
605...606...607 AND 608...

Southerly flow into the area will keep isolated to scattered
showers streaming north into the area, but little more if any
lightning is expected overnight.

$$

For more information visit: http://weather.gov/portland

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 2:30 PM PDTSmall Craft AdvisoryPQR33 hr

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.