Alert archive / Idaho / Red Flag Warnings in 2017

Red Flag Warning 17, NWS Spokane, WA

September 2, 20175 counties in Idaho

NWS Spokane, WA issued this red flag warning at Sep 2, 2017, 2:15 PM PDT for 5 counties in Idaho. It took effect at Sep 3, 2017, 12:00 PM PDT. It was in force for 8 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 2, 2017, 2:15 PM PDT (21:15 UTC)
In effect from
Sep 3, 2017, 12:00 PM PDT
Expired
Sep 3, 2017, 8:00 PM PDT
In force
8 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 21:20 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 2017-09-02Temperature 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 2017-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
3344 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

968 
WWUS86 KOTX 022115
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
215 PM PDT Sat Sep 2 2017

...Hot...dry...and unstable conditions Sunday...

.There is the potential for plume dominated fires Sunday
afternoon and early evening as hot and dry conditions combine
with an unstable atmosphere. This will result in Haines 5 or
6 conditions.

IDZ101-WAZ680-682-685-687-031400-
/O.UPG.KOTX.FW.A.0005.170903T1900Z-170904T0300Z/
/O.NEW.KOTX.FW.W.0017.170903T1900Z-170904T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
East Washington North Cascades (Zone 685)-
East Washington Okanogan Highlands (Zone 687)-
215 PM PDT Sat Sep 2 2017

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM PDT SUNDAY FOR
HIGH HAINES FOR EAST SLOPES OF THE CASCADE MOUNTAINS...OKANOGAN
HIGHLANDS...AND THE IDAHO PANHANDLE...

The National Weather Service in Spokane has issued a Red Flag
Warning for high haines, which is in effect from noon to 8 PM PDT
Sunday. 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 680 East 
  Washington South Central Cascade Mountains (Zone 680)...Fire 
  Weather Zone 682 East Washington Central Cascade Mountains 
  (Zone 682)...Fire Weather Zone 685 East Washington North 
  Cascades (Zone 685) and Fire Weather Zone 687 East Washington 
  Okanogan Highlands (Zone 687).

* Haines: 5 or 6.

* Winds: West to southwest 5 to 10 mph Sunday...shifting to north  
  Sunday night and Monday.

* Timing: Sunday afternoon and early evening

* Relative Humidities: 10 to 20 percent.

* Temperatures: 80s in the mountains...low to mid 90s valleys.

* Impacts: Any new or existing fires will have the potential to 
  become plume dominated.

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.

&&

$$
2 follow-up statements
591 
WWUS86 KOTX 031327
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
627 AM PDT Sun Sep 3 2017

...Hot...dry...and unstable conditions Sunday...

.There is the potential for plume dominated fires Sunday
afternoon and early evening as hot and dry conditions combine
with an unstable atmosphere. This will result in Haines 5 or
6 conditions.

IDZ101-WAZ680-682-685-687-040300-
/O.CON.KOTX.FW.W.0017.170903T1900Z-170904T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
East Washington North Cascades (Zone 685)-
East Washington Okanogan Highlands (Zone 687)-
627 AM PDT Sun Sep 3 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM PDT
THIS EVENING FOR HIGH HAINES FOR EAST SLOPES OF THE CASCADE
MOUNTAINS...OKANOGAN HIGHLANDS...AND THE IDAHO PANHANDLE...

* Affected Area: Fire Weather Zone 101 Northern and Central 
  Idaho Panhandle (Zone 101)...Fire Weather Zone 680 East 
  Washington South Central Cascade Mountains (Zone 680)...Fire 
  Weather Zone 682 East Washington Central Cascade Mountains 
  (Zone 682)...Fire Weather Zone 685 East Washington North 
  Cascades (Zone 685) and Fire Weather Zone 687 East Washington 
  Okanogan Highlands (Zone 687).

* Haines: 5 or 6.

* Winds: West to southwest 5 to 10 mph Sunday...shifting to 
  north Sunday night and Monday.

* Timing: Sunday afternoon and early evening

* Relative Humidities: 10 to 20 percent.

* Temperatures: 80s in the mountains...low to mid 90s valleys.

* Impacts: Any new or existing fires will have the potential to 
  become plume dominated.

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.

&&

$$
445 
WWUS86 KOTX 040252
RFWOTX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
752 PM PDT Sun Sep 3 2017



IDZ101-WAZ680-682-685-687-040400-
/O.EXP.KOTX.FW.W.0017.000000T0000Z-170904T0300Z/
Northern and Central Idaho Panhandle (Zone 101)-
East Washington South Central Cascade Mountains (Zone 680)-
East Washington Central Cascade Mountains (Zone 682)-
East Washington North Cascades (Zone 685)-
East Washington Okanogan Highlands (Zone 687)-
752 PM PDT Sun Sep 3 2017

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR HIGH
HAINES FOR EAST SLOPES OF THE CASCADE MOUNTAINS...OKANOGAN 
HIGHLANDS...AND THE IDAHO PANHANDLE...


Expect winds to shift and blow from the north tonight and then 
more from the northeast and east tomorrow which is a change, otherwise
locations have become cooler and more stable therefore the red 
flag warning for high haines will be allowed to expire.

$$

Nearby

Red Flag Warnings in Idaho, 2017Red Flag Warnings in Washington, 2017Every red flag warning in 2017

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.