Alert archive / Idaho / Red Flag Warnings in 2021

Red Flag Warning 5, NWS Spokane, WA

July 6, 20215 counties in Idaho

NWS Spokane, WA issued this red flag warning at Jul 6, 2021, 2:17 PM PDT for 5 counties in Idaho. It took effect at Jul 7, 2021, 2:00 AM PDT. It was in force for 18 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 6, 2021, 2:17 PM PDT (21:17 UTC)
In effect from
Jul 7, 2021, 2:00 AM PDT
Expired
Jul 7, 2021, 8:00 PM PDT
In force
18 hr
Issued by
NWS Spokane, WA

Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Shoshone County, ID

The radar

The Spokane radar (KOTX), 89 km from the middle of the area, began a volume at 21:19 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

Spokane, WA (KOTX), launched 12:00Z, 9.3 hours before the alert went out and 19 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.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2021-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2021-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2898 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

789 
WWUS86 KOTX 062117
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
217 PM PDT Tue Jul 6 2021

WAZ673-674-676-677-680-682-070530-
/O.UPG.KOTX.FW.A.0003.210707T0700Z-210708T0300Z/
/O.NEW.KOTX.FW.W.0005.210707T0900Z-210708T0300Z/
East Washington Northern Columbia Basin (Zone 673)-
East Washington Palouse and Spokane Area (Zone 674)-
East Washington South Central Cascade Valleys (Zone 676)-
East Washington Central Cascade Valleys (Zone 677)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
217 PM PDT Tue Jul 6 2021

...RED FLAG WARNING IN EFFECT FROM 2 AM TO 8 PM PDT WEDNESDAY FOR
THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE HUMIDITY FOR EAST
SLOPES OF THE CASCADES INTO THE COLUMBIA BASIN...PALOUSE AND 
SPOKANE AREA...

The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms followed by wind and low relative 
humidity, which is in effect from 2 AM to 8 PM PDT Wednesday. The
Fire Weather Watch is no longer in effect.

* Affected Area: Fire Weather Zone 673 East Washington Northern 
  Columbia Basin (Zone 673), Fire Weather Zone 674 East 
  Washington Palouse and Spokane Area (Zone 674), Fire Weather 
  Zone 676 East Washington South Central Cascade Valleys (Zone 
  676), Fire Weather Zone 677 East Washington Central Cascade 
  Valleys (Zone 677), Fire Weather Zone 680 East Washington 
  South Central Cascade Mountains (Zone 680) and Fire Weather 
  Zone 682 East Washington Central Cascade Mountains (Zone 682).

* Thunderstorms: Elevated early morning dry thunderstorms will be
  possible.

* Winds: West 10 to 20 mph with gusts to between 30 and 35 mph.

* Relative Humidities: 14 to 25 percent in the valleys and 25 to 
  48 percent over the higher terrain.

* Impacts: New fire starts with rapid spread possible from gusty
  winds.

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.

&&

$$

IDZ101-WAZ662-684>687-070530-
/O.UPG.KOTX.FW.A.0003.210707T1200Z-210708T0300Z/
/O.NEW.KOTX.FW.W.0005.210707T1200Z-210708T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Portion of North Cascades National Park/Lake Chelan National
Recreational Area (Zone 662)-
East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington North Cascades (Zone 685)-
East Washington Northeast (Zone 686)-
East Washington Okanogan Highlands (Zone 687)-
217 PM PDT Tue Jul 6 2021

...RED FLAG WARNING IN EFFECT FROM 5 AM TO 8 PM PDT WEDNESDAY FOR
THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE HUMIDITY FOR 
NORTHERN WASHINGTON AND IDAHO...

The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms followed by wind and low relative 
humidity, which is in effect from 2 AM to 8 PM PDT Wednesday. The 
Fire Weather Watch is no longer in effect.

* Affected Area: Fire Weather Zone 101 Northern and Central 
  Idaho Panhandle (Zone 101), Fire Weather Zone 662 East Portion 
  of North Cascades National Park/Lake Chelan National 
  Recreational Area (Zone 662), Fire Weather Zone 684 East 
  Washington Okanogan/Methow Valleys (Zone 684), Fire Weather 
  Zone 685 East Washington North Cascades (Zone 685), Fire 
  Weather Zone 686 East Washington Northeast (Zone 686) and Fire 
  Weather Zone 687 East Washington Okanogan Highlands (Zone 687).

* Thunderstorms: Elevated early morning dry thunderstorms will 
  be possible. Showers and thunderstorms will continue through 
  the afternoon along the Canadian border.

* Winds: West-Northwest 10 to 20 mph with gusts to between 25 and
  35 mph from late morning into afternoon. From Okanogan 
  Highlands to the Northern Panhandle, the strongest gusts will be
  across the southern portions of these fire weather zones. 

* Relative Humidities: 15 to 25 percent in the valleys and 25 to
  40 percent over the higher terrain.

* Impacts: New fire starts with rapid spread possible from gusty
  winds.

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.

&&

$$
4 follow-up statements
302 
WWUS86 KOTX 062229
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
329 PM PDT Tue Jul 6 2021

WAZ673-674-676-677-680-682-070630-
/O.CON.KOTX.FW.W.0005.210707T0900Z-210708T0300Z/
East Washington Northern Columbia Basin (Zone 673)-
East Washington Palouse and Spokane Area (Zone 674)-
East Washington South Central Cascade Valleys (Zone 676)-
East Washington Central Cascade Valleys (Zone 677)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
329 PM PDT Tue Jul 6 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM PDT
WEDNESDAY FOR THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE 
HUMIDITY FOR EAST SLOPES OF THE CASCADES INTO THE COLUMBIA 
BASIN...PALOUSE AND SPOKANE AREA...

* Affected Area: Fire Weather Zone 673 East Washington Northern 
  Columbia Basin (Zone 673), Fire Weather Zone 674 East 
  Washington Palouse and Spokane Area (Zone 674), Fire Weather 
  Zone 676 East Washington South Central Cascade Valleys (Zone 
  676), Fire Weather Zone 677 East Washington Central Cascade 
  Valleys (Zone 677), Fire Weather Zone 680 East Washington 
  South Central Cascade Mountains (Zone 680) and Fire Weather 
  Zone 682 East Washington Central Cascade Mountains (Zone 682).

* Thunderstorms: Elevated early morning dry thunderstorms are
  expected.

* Winds: West 10 to 20 mph with gusts to between 30 and 35 mph.

* Relative Humidities: 14 to 25 percent in the valleys and 25 to 
  48 percent over the higher terrain.

* Impacts: New fire starts with rapid spread possible from gusty
  winds.

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.

&&

$$

IDZ101-WAZ662-684>687-070630-
/O.CON.KOTX.FW.W.0005.210707T1200Z-210708T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Portion of North Cascades National Park/Lake Chelan National
Recreational Area (Zone 662)-
East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington North Cascades (Zone 685)-
East Washington Northeast (Zone 686)-
East Washington Okanogan Highlands (Zone 687)-
329 PM PDT Tue Jul 6 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 8 PM PDT
THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE HUMIDITY FOR 
NORTHERN WASHINGTON AND IDAHO...

* Affected Area: Fire Weather Zone 101 Northern and Central 
  Idaho Panhandle (Zone 101), Fire Weather Zone 662 East Portion 
  of North Cascades National Park/Lake Chelan National 
  Recreational Area (Zone 662), Fire Weather Zone 684 East 
  Washington Okanogan/Methow Valleys (Zone 684), Fire Weather 
  Zone 685 East Washington North Cascades (Zone 685), Fire 
  Weather Zone 686 East Washington Northeast (Zone 686) and Fire 
  Weather Zone 687 East Washington Okanogan Highlands (Zone 687).

* Thunderstorms: Elevated early morning dry thunderstorms are
  expected. Showers and thunderstorms will continue through the 
  afternoon along the Canadian border.

* Winds: West-Northwest 10 to 20 mph with gusts to between 25 and
  35 mph from late morning into afternoon. From Okanogan 
  Highlands to the Northern Panhandle, the strongest gusts will be
  across the southern portions of these fire weather zones. 

* Relative Humidities: 15 to 25 percent in the valleys and 25 to
  40 percent over the higher terrain.

* Impacts: New fire starts with rapid spread possible from gusty
  winds.

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.

&&

$$
311 
WWUS86 KOTX 070410
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
910 PM PDT Tue Jul 6 2021

WAZ673-674-676-677-680-682-071800-
/O.CON.KOTX.FW.W.0005.210707T0900Z-210708T0300Z/
East Washington Northern Columbia Basin (Zone 673)-
East Washington Palouse and Spokane Area (Zone 674)-
East Washington South Central Cascade Valleys (Zone 676)-
East Washington Central Cascade Valleys (Zone 677)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
910 PM PDT Tue Jul 6 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM PDT
WEDNESDAY FOR THUNDERSTORMS FOR THUNDERSTORMS FOLLOWED BY WIND 
AND LOW RELATIVE HUMIDITY FOR EAST SLOPES OF THE CASCADES INTO 
THE COLUMBIA BASIN...PALOUSE AND SPOKANE AREA...

* Affected Area: Fire Weather Zone 673 East Washington Northern 
  Columbia Basin (Zone 673), Fire Weather Zone 674 East 
  Washington Palouse and Spokane Area (Zone 674), Fire Weather 
  Zone 676 East Washington South Central Cascade Valleys (Zone 
  676), Fire Weather Zone 677 East Washington Central Cascade 
  Valleys (Zone 677), Fire Weather Zone 680 East Washington 
  South Central Cascade Mountains (Zone 680) and Fire Weather 
  Zone 682 East Washington Central Cascade Mountains (Zone 682).

* Thunderstorms: Scattered dry thunderstorms are expected 
  Wednesday morning.

* Winds: West 10 to 20 mph with gusts up to 30 mph. Localized
  gusts to 35 mph around Wenatchee, Ellensburg, and Vantage.

* Relative Humidities: 14 to 24 percent in the valleys and 25 to 
  45 percent over the higher terrain.

* Impacts: New fire starts in the morning followed by hot, dry,
  and gusty winds in the afternoon and evening.

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.

&&

$$

IDZ101-WAZ662-684>687-071800-
/O.CON.KOTX.FW.W.0005.210707T1200Z-210708T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Portion of North Cascades National Park/Lake Chelan National
Recreational Area (Zone 662)-
East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington North Cascades (Zone 685)-
East Washington Northeast (Zone 686)-
East Washington Okanogan Highlands (Zone 687)-
910 PM PDT Tue Jul 6 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 5 AM TO 8 PM PDT
WEDNESDAY FOR THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE 
HUMIDITY ACROSS NORTH CENTRAL AND NORTHEAST WASHINGTON AS WELL AS
THE CENTRAL AND NORTHERN IDAHO PANHANDLE..

* Affected Area: Fire Weather Zone 101 Northern and Central 
  Idaho Panhandle (Zone 101), Fire Weather Zone 662 East Portion 
  of North Cascades National Park/Lake Chelan National 
  Recreational Area (Zone 662), Fire Weather Zone 684 East 
  Washington Okanogan/Methow Valleys (Zone 684), Fire Weather 
  Zone 685 East Washington North Cascades (Zone 685), Fire 
  Weather Zone 686 East Washington Northeast (Zone 686) and Fire 
  Weather Zone 687 East Washington Okanogan Highlands (Zone 687).

* Thunderstorms: Scattered dry thunderstorms are expected
  Wednesday morning. Showers and thunderstorms will continue
  through early evening along the Canadian border.

* Winds: West 10 to 15 mph with gusts up to 25 mph. Localized
  gusts to 30 mph or more in the Okanogan Valley, around Coeur
  d'Alene, and across southern portions of Ferry, Stevens, and 
  Pend Oreille counties.

* Relative Humidities: 15 to 25 percent in the valleys and 25 to
  40 percent over the higher terrain.

* Impacts: New fire starts in the morning followed by hot, dry,
  and gusty winds in the afternoon and evening.

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.

&&

$$
820 
WWUS86 KOTX 071807
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1107 AM PDT Wed Jul 7 2021

WAZ680-682-071915-
/O.CAN.KOTX.FW.W.0005.000000T0000Z-210708T0300Z/
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
1107 AM PDT Wed Jul 7 2021

...RED FLAG WARNING IS CANCELLED FOR THUNDERSTORMS AND DRY
LIGHTNING FOR SOUTH CENTRAL AND CENTRAL CASCADE MOUNTAINS...

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

Lightning did not materialize this morning as expected. Afternoon
convection is expected to mainly be over north Cascades north of
Lake Chelan through the rest of today.

$$

WAZ673-674-676-677-080300-
/O.CON.KOTX.FW.W.0005.000000T0000Z-210708T0300Z/
East Washington Northern Columbia Basin (Zone 673)-
East Washington Palouse and Spokane Area (Zone 674)-
East Washington South Central Cascade Valleys (Zone 676)-
East Washington Central Cascade Valleys (Zone 677)-
1107 AM PDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR THE CASCADE GAPS...THE 
COLUMBIA BASIN...SPOKANE AREA AND PALOUSE...

* Affected Area: Fire Weather Zone 673 East Washington Northern 
  Columbia Basin (Zone 673), Fire Weather Zone 674 East 
  Washington Palouse and Spokane Area (Zone 674), Fire Weather 
  Zone 676 East Washington South Central Cascade Valleys (Zone 
  676) and Fire Weather Zone 677 East Washington Central Cascade 
  Valleys (Zone 677).

* Winds: West 10 to 20 mph with gusts up to 30 mph. Localized
  gusts 35 to 40 mph around Wenatchee, Ellensburg, and Vantage.

* Relative Humidities: 13 to 25 percent.

* Impacts: Hot, dry, and gusty winds will increase the risk for
  rapid fire spread in the afternoon and early evening.

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.

&&

$$

IDZ101-WAZ662-684>687-080300-
/O.CON.KOTX.FW.W.0005.000000T0000Z-210708T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Portion of North Cascades National Park/Lake Chelan National
Recreational Area (Zone 662)-
East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington North Cascades (Zone 685)-
East Washington Northeast (Zone 686)-
East Washington Okanogan Highlands (Zone 687)-
1107 AM PDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR THUNDERSTORMS FOLLOWED BY WIND AND LOW RELATIVE HUMIDITY 
ACROSS NORTH CENTRAL AND NORTHEAST WASHINGTON AS WELL AS THE 
CENTRAL AND NORTHERN IDAHO PANHANDLE..

* Affected Area: Fire Weather Zone 101 Northern and Central 
  Idaho Panhandle (Zone 101), Fire Weather Zone 662 East Portion 
  of North Cascades National Park/Lake Chelan National 
  Recreational Area (Zone 662), Fire Weather Zone 684 East 
  Washington Okanogan/Methow Valleys (Zone 684), Fire Weather 
  Zone 685 East Washington North Cascades (Zone 685), Fire 
  Weather Zone 686 East Washington Northeast (Zone 686) and Fire 
  Weather Zone 687 East Washington Okanogan Highlands (Zone 687).

* Thunderstorms: Isolated to scattered thunderstorms are expected
  to develop near the Canadian border this afternoon into the the
  evening hours. Scattered lightning will be most likely from the
  north Cascades to the mountains of northeast Washington.

* Winds: West 10 to 15 mph with gusts up to 25 mph. Localized
  gusts to 30 mph or more in the Okanogan Valley, around Coeur
  d'Alene, and across southern portions of Ferry, Stevens, and 
  Pend Oreille counties.

* Relative Humidities: 15 to 25 percent in the valleys and 25 to
  40 percent over the higher terrain.

* Impacts: Lighting is expected to result in new fire starts. Hot,
  dry, and gusty winds in the afternoon and evening will increase
  the risk for rapid 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
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
718 
WWUS86 KOTX 080249
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
749 PM PDT Wed Jul 7 2021


WAZ673-674-676-677-080400-
/O.EXP.KOTX.FW.W.0005.000000T0000Z-210708T0300Z/
East Washington Northern Columbia Basin (Zone 673)-
East Washington Palouse and Spokane Area (Zone 674)-
East Washington South Central Cascade Valleys (Zone 676)-
East Washington Central Cascade Valleys (Zone 677)-
749 PM PDT Wed Jul 7 2021

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR WIND
AND LOW RELATIVE HUMIDITY FOR THE CASCADE GAPS...THE 
COLUMBIA BASIN...SPOKANE AREA AND PALOUSE...

Breezy winds will continue into the evening hours but speeds will
begin decreasing and humidity levels will moisten.

$$

IDZ101-WAZ662-684>687-080400-
/O.EXP.KOTX.FW.W.0005.000000T0000Z-210708T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Portion of North Cascades National Park/Lake Chelan National
Recreational Area (Zone 662)-
East Washington Okanogan/Methow Valleys (Zone 684)-
East Washington North Cascades (Zone 685)-
East Washington Northeast (Zone 686)-
East Washington Okanogan Highlands (Zone 687)-
749 PM PDT Wed Jul 7 2021

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR 
THUNDERSTORMS AND BREEZY WINDS.


Isolated thunderstorms will remain possible through 900PM. Any 
storms that do develop will bring the potential for isolated
lightning strikes along with brief heavy rainfall.

$$

Nearby

Red Flag Warnings in Idaho, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.