Alert archive / Washington / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 6, NWS Spokane, WA

July 9, 2000Ferry County, Stevens County, Washington

NWS Spokane, WA issued this severe thunderstorm warning at Jul 9, 2000, 3:54 PM PDT for Ferry County, Stevens County, Washington. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 9, 2000, 3:54 PM PDT (22:54 UTC)
Expired
Jul 9, 2000, 5:00 PM PDT
In force
66 min
Issued by
NWS Spokane, WA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Ferry County, WA, Stevens County, WA

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 10.9 hours before the alert went out and 150 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 2000-07-09Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2000-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1088 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS56 KOTX 092255
SVRGEG
WAC019-065-100000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
354 PM PDT SUN JUL 9 2000

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN FERRY COUNTY IN NORTHEAST WASHINGTON
  SOUTHERN STEVENS COUNTY IN NORTHEAST WASHINGTON

* AT 351 PM PDT...A SEVERE THUNDERSTORM WAS REPORTED 31 MILES NORTH
  OF DAVENPORT...OR 53 MILES NORTHWEST OF SPOKANE...MOVING EAST AT 10
  MPH. THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE ONE-INCH DIAMETER
  HAIL.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   FRUITLAND...HUNTERS AT 440 PM PDT
   CEDONIA AT 445 PM PDT

IF ON A LAKE...GET OUT OF THE WATER AND MOVE INDOORS. REMEMBER...
LIGHTNING CAN STRIKE MANY MILES AWAY FROM THE THUNDERSTORM. IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

LAT...LON 4816 11852 4798 11852 4795 11802 4820 11803

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 3:01 PM PDTSevere Thunderstorm WarningOTXFerry44 min

Nearby

Severe Thunderstorm Warnings in Washington, 2000Every severe thunderstorm warning in 2000

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.