Alert archive / Idaho / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Spokane, WA

August 10, 2019Kootenai County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Aug 10, 2019, 6:16 PM PDT for Kootenai County, Idaho. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 10, 2019, 6:16 PM PDT (01:16 UTC)
Expired
Aug 10, 2019, 7:00 PM PDT
In force
44 min
Issued by
NWS Spokane, WA
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Kootenai County, ID

The radar

The Spokane radar (KOTX), 83 km from the middle of the area, began a volume at 01:17 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.

What was reported inside it

TimeReportWhereRemark
Aug 10, 6:45 PM PDTHAIL 1.57 E Fernan Lake Village, IDSMALL HAIL BLANKETING THE GROUND TO A DEPTH OF 2 INCHES. MANY LARGER HAILSTONES EMBEDDED. SIGNIFICANT DAMAGE TO YARD PLANTS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 1.3 hours before the alert went out and 10 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 00:00Z on 2019-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 746 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2019-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.19395878Sfc1 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
746 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
2031 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

376 
WUUS56 KOTX 110116
SVROTX
IDC055-110200-
/O.NEW.KOTX.SV.W.0021.190811T0116Z-190811T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Spokane WA
616 PM PDT Sat Aug 10 2019

The National Weather Service in Spokane has issued a

* Severe Thunderstorm Warning for...
  East central Kootenai County in the Panhandle of Idaho...

* Until 700 PM PDT.

* At 616 PM PDT, a severe thunderstorm was located over Fourth Of
  July Pass, or 11 miles east of Coeur D'alene, and is nearly
  stationary.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Fourth Of July Pass and Wolf Creek Campground. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 4761 11633 4758 11660 4765 11672 4773 11663
      4777 11649
TIME...MOT...LOC 0116Z 149DEG 1KT 4764 11655 

HAIL...1.00IN
WIND...<50MPH
 
$$

RP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 5:03 PM PDTSevere Thunderstorm WarningOTXKootenai, Shoshone45 min
Aug 10, 5:08 PM PDTSevere Thunderstorm WarningOTXBenewah, Kootenai52 min
Aug 10, 5:17 PM PDTSpecial Weather StatementOTXBoundary43 min
Aug 10, 5:42 PM PDTSpecial Weather StatementOTXBonner48 min
Aug 10, 5:49 PM PDTSpecial Weather StatementOTXBoundary26 min
Aug 10, 5:53 PM PDTSevere Thunderstorm WarningOTXBenewah, Kootenai52 min
Aug 10, 5:56 PM PDTAreal Flood AdvisoryOTXBonner, Boundary3 hr
Aug 10, 6:10 PM PDTSpecial Weather StatementOTXShoshone50 min
Aug 10, 6:20 PM PDTSpecial Weather StatementOTXBoundary55 min
Aug 10, 6:37 PM PDTSevere Thunderstorm WarningOTXKootenai53 min
Aug 10, 6:39 PM PDTSevere Thunderstorm WarningOTXBonner51 min
Aug 10, 7:14 PM PDTSevere Thunderstorm WarningOTXBonner, Kootenai24 min
Aug 10, 7:34 PM PDTSpecial Weather StatementOTXBonner41 min
Aug 10, 7:52 PM PDTFlash Flood WarningOTXBonner, Shoshone3 hr
Aug 10, 8:28 PM PDTAreal Flood AdvisoryOTXBonner, Boundary, Kootenai, Shoshone3 hr
Aug 10, 8:32 PM PDTAreal Flood AdvisoryOTXBonner3 hr
Aug 10, 9:10 PM PDTAreal Flood AdvisoryOTXBonner, Boundary3 hr
Aug 10, 10:03 PM PDTAreal Flood AdvisoryOTXKootenai90 min
Aug 11, 11:45 AM PDTAreal Flood AdvisoryOTXLewis, Nez Perce103 min
Aug 11, 2:37 PM PDTSpecial Weather StatementOTXBoundary38 min
Aug 11, 3:16 PM PDTAreal Flood AdvisoryOTXBonner3 hr

Nearby

Severe Thunderstorm Warnings in Idaho, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.