Alert archive / Washington / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Spokane, WA

June 15, 2021Pend Oreille County, Spokane County, Washington; Bonner County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jun 15, 2021, 3:00 AM PDT for Pend Oreille County, Spokane County, Washington; Bonner County, Idaho. It was in force for 30 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
Jun 15, 2021, 3:00 AM PDT (10:00 UTC)
Expired
Jun 15, 2021, 3:30 AM PDT
In force
30 min
Issued by
NWS Spokane, WA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bonner County, ID, Pend Oreille County, WA, Spokane County, WA

The radar

The Spokane radar (KOTX), 63 km from the middle of the area, began a volume at 10:00 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 00:00Z, 10.0 hours before the alert went out and 70 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 2021-06-15Temperature 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 00:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.1939587897Sfc1 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
2457 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

850 
WUUS56 KOTX 151000
SVROTX
IDC017-WAC051-063-151030-
/O.NEW.KOTX.SV.W.0005.210615T1000Z-210615T1030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Spokane WA
300 AM PDT Tue Jun 15 2021

The National Weather Service in Spokane has issued a

* Severe Thunderstorm Warning for...
  West central Bonner County in the Panhandle of Idaho...
  Northeastern Spokane County in northeastern Washington...
  Southeastern Pend Oreille County in northeastern Washington...

* Until 330 AM PDT.

* At 300 AM PDT, a severe thunderstorm was located 9 miles south of
  Newport, or 13 miles southwest of Priest River, moving northeast at
  70 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Wind damage is 
           possible as well.

* Locations impacted include...
  Priest River, Deer Park, Newport, Oldtown, Milan, Diamond Lake,
  Elk, Bead Lake Campground, South Skookum Lake Campground, Mount
  Spokane, Sacheen Lake and Dalkena.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4791 11711 4796 11744 4843 11719 4840 11666
TIME...MOT...LOC 1000Z 203DEG 75KT 4805 11713 

HAIL...1.00IN
WIND...60MPH
 
$$

JW
1 follow-up statement
095 
WWUS56 KOTX 151017
SVSOTX

Severe Weather Statement
National Weather Service Spokane WA
317 AM PDT Tue Jun 15 2021

WAC063-151026-
/O.CAN.KOTX.SV.W.0005.000000T0000Z-210615T1030Z/
Spokane WA-
317 AM PDT Tue Jun 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SPOKANE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4807 11697 4809 11737 4843 11719 4840 11666
TIME...MOT...LOC 1016Z 201DEG 60KT 4822 11707 

$$

IDC017-WAC051-151030-
/O.CON.KOTX.SV.W.0005.000000T0000Z-210615T1030Z/
Bonner ID-Pend Oreille WA-
317 AM PDT Tue Jun 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM PDT
FOR WEST CENTRAL BONNER AND SOUTHEASTERN PEND OREILLE COUNTIES...

At 316 AM PDT, a severe thunderstorm was located over Newport, or 7
miles west of Priest River, moving north at 70 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Wind damage is 
         possible as well.

Locations impacted include...
Priest River, Newport, Oldtown, Diamond Lake, Bead Lake Campground,
South Skookum Lake Campground, Sacheen Lake and Dalkena.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4807 11697 4809 11737 4843 11719 4840 11666
TIME...MOT...LOC 1016Z 201DEG 60KT 4822 11707 

HAIL...1.00IN
WIND...60MPH
 
$$

JW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 12:43 AM PDTSpecial Weather StatementOTXWhitman32 min
Jun 15, 12:43 AM PDTSevere Thunderstorm WarningOTXLincoln, Stevens47 min
Jun 15, 3:29 AM PDTSpecial Weather StatementOTXWhitman46 min
Jun 15, 2:10 PM PDTSpecial Weather StatementOTXSpokane50 min
Jun 15, 3:11 PM PDTSpecial Weather StatementOTXSpokane49 min
Jun 15, 2:52 AM PDTSpecial Weather StatementOTXBoundary38 min
Jun 15, 5:23 AM PDTSpecial Weather StatementOTXBenewah52 min

Nearby

Severe Thunderstorm Warnings in Washington, 2021Severe Thunderstorm Warnings in Idaho, 2021Every severe thunderstorm 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.