Alert archive / Idaho / Special Weather Statements in 2023

Special Weather Statement, NWS Spokane, WA

August 7, 2023Kootenai County, Idaho

NWS Spokane, WA issued this special weather statement at Aug 7, 2023, 3:05 PM PDT for Kootenai County, Idaho. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 7, 2023, 3:05 PM PDT (22:05 UTC)
Expired
Aug 7, 2023, 4:00 PM PDT
In force
55 min
Issued by
NWS Spokane, WA
Hail
0.88 in
Wind
30

County Kootenai County, ID

The radar

The Spokane radar (KOTX), 105 km from the middle of the area, began a volume at 22:05 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, 10.1 hours before the alert went out and 17 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 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 248 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
248 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this special weather statement went out at Aug 7, 2:54 PM PDT, 11 minutes earlier.

Area forecast discussion, Aug 7, 2:54 PM PDT, 11 minutes before
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In the hours before

Special weather statement, Aug 7, 11:50 AM PDT, 3 hours 15 minutes before
Special Weather Statement
National Weather Service Spokane WA
1150 AM PDT Mon Aug 7 2023

IDZ026-027-071915-
Lewiston Area ID-Lewis and Southern Nez Perce Counties ID-
1150 AM PDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of east central Nez
Perce and west central Lewis Counties through 1215 PM PDT...

At 1150 AM PDT, Doppler radar was tracking a strong thunderstorm near
Craigmont, or 16 miles southeast of Lapwai, moving north at 15 mph.

HAZARD...Winds in excess of 30 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Craigmont and Reubens.

This includes U.S. Highway 95 in Idaho near mile marker 275.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4625 11641 4623 11653 4637 11660 4640 11643
TIME...MOT...LOC 1850Z 170DEG 11KT 4630 11649

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

JCLEV
Special weather statement, Aug 7, 11:52 AM PDT, 3 hours 13 minutes before
Special Weather Statement
National Weather Service Spokane WA
1152 AM PDT Mon Aug 7 2023

IDZ027-WAZ031-032-071915-
Lewis and Southern Nez Perce Counties ID-Northeast Blue Mountains WA-
Lower Garfield and Asotin Counties WA-
1152 AM PDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of southwestern Nez
Perce, south central Garfield and southern Asotin Counties through
1215 PM PDT...

At 1151 AM PDT, Doppler radar was tracking a strong thunderstorm 8
miles north of Troy, or 28 miles southeast of Dayton, moving east at
35 mph.

HAZARD...Winds in excess of 30 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Rogersburg and Misery Spring Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4613 11761 4608 11694 4600 11699 4599 11760
TIME...MOT...LOC 1851Z 292DEG 32KT 4606 11751

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

JCLEV
Special weather statement, Aug 7, 12:25 PM PDT, 2 hours 40 minutes before
Special Weather Statement
National Weather Service Spokane WA
1225 PM PDT Mon Aug 7 2023

IDZ001-072000-
Northern Panhandle ID-
1225 PM PDT Mon Aug 7 2023

...A strong thunderstorm will impact portions of southwestern Bonner
and northern Kootenai Counties through 100 PM PDT...

At 1225 PM PDT, Doppler radar was tracking a strong thunderstorm near
Spirit Lake, or 10 miles south of Priest River. This storm was nearly
stationary.

HAZARD...Winds in excess of 30 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Spirit Lake and Blanchard.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4796 11689 4803 11703 4812 11690 4803 11676
TIME...MOT...LOC 1925Z 259DEG 4KT 4804 11686

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

JCLEV
Special weather statement, Aug 7, 2:11 PM PDT, 54 minutes before
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Special weather statement, Aug 7, 3:05 PM PDT, 0 minutes before
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The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 5:45 PM PDTSpecial Weather StatementOTXDouglas45 min
Aug 6, 6:07 PM PDTSpecial Weather StatementOTXDouglas23 min
Aug 6, 6:35 PM PDTSpecial Weather StatementOTXDouglas40 min
Aug 6, 6:53 PM PDTAreal Flood AdvisoryOTXDouglas3 hr
Aug 7, 6:18 AM PDTAreal Flood AdvisoryOTXStevens117 min
Aug 7, 7:46 AM PDTSpecial Weather StatementOTXLincoln29 min
Aug 7, 7:54 AM PDTAreal Flood AdvisoryOTXFerry, Stevens111 min
Aug 7, 8:03 AM PDTAreal Flood AdvisoryOTXStevens117 min
Aug 7, 11:52 AM PDTSpecial Weather StatementOTXAsotin23 min
Aug 7, 11:50 AM PDTSpecial Weather StatementOTXLewis25 min
Aug 7, 12:25 PM PDTSpecial Weather StatementOTXBonner35 min
Aug 7, 2:11 PM PDTSpecial Weather StatementOTXShoshone64 min
Aug 7, 2:20 PM PDTAreal Flood AdvisoryOTXShoshone115 min

Nearby

Special Weather Statements in Idaho, 2023Every special weather statement in 2023

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.