Alert archive / Idaho / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 22, NWS Spokane, WA

July 9, 1995Idaho County, Lewis County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jul 9, 1995, 9:30 PM PDT for Idaho County, Lewis County, Idaho. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 9:30 PM PDT (04:30 UTC)
Expired
Jul 9, 1995, 10:30 PM PDT
In force
60 min
Issued by
NWS Spokane, WA
Area
Whole counties

Counties Idaho County, ID, Lewis County, ID

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 4.5 hours before the alert went out and 188 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 1995-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 736 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 00:00Z on 1995-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.19395878Sfc1 km3 km6 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
736 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1624 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KLWS 100429 RRA
SVRLWS
IDC049-061-100530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LEWISTON ID
ISSUED BY BOISE ID
930 PM PDT SUN JUL 9 1995
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL IDAHO
 
   ...NORTHEASTERN IDAHO COUNTY...LEWIS COUNTY
 
AT 1025 PM MDT WEATHER RADAR AT MISSOULA INDICATED A SEVERE THUNDERSTORM
ON THE BORDER OF LEWIS AND IDAHO COUNTIES...ABOUT 15 MILES WEST
OF GRANGEVILLE.  THE STORM WAS MOVING TO THE NORTHEAST AT
ABOUT 40 MPH.
 
EXPECT LARGE HAIL...HEAVY RAIN AND DAMAGING WINDS WITH THIS STORM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

What forecasters said that day

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

In the hours before

Special weather statement, Jul 9, 5:40 PM PDT, 3 hours 50 minutes before
WAZ006-100115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
540 PM PDT SUN JUL 9 1995

THE SEVERE THUNDERSTORM WARNINGS FOR SPOKANE
COUNTY...WASHINGTON...EXTREME NORTH NEZ PERCE COUNTY...IDAHO...AND LATAH
COUNTY...IDAHO HAS EXPIRED.

THE STORMS THAT MOVED THROUGH THESE COUNTIES PRODUCED HAIL UP TO 3/4
INCH...WIND GUSTS UP TO 60 MPH OR MORE...DOWNED TREES...CAUSED NUMEROUS
POWER FAILURES...AND CAUSED MINOR FLOODING.  THE STORMS HAVE NOW
WEAKENED AND HAVE MOVED INTO THE IDAHO PANHANDLE.
Special weather statement, Jul 9, 5:45 PM PDT, 3 hours 45 minutes before
WAZ006-100115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
540 PM PDT SUN JUL 9 1995

THE SEVERE THUNDERSTORM WARNINGS FOR SPOKANE
COUNTY...WASHINGTON...EXTREME NORTH NEZ PERCE COUNTY...IDAHO...AND LATAH
COUNTY...IDAHO HAS EXPIRED.

THE STORMS THAT MOVED THROUGH THESE COUNTIES PRODUCED HAIL UP TO 3/4
INCH...WIND GUSTS UP TO 60 MPH OR MORE...DOWNED TREES...CAUSED NUMEROUS
POWER FAILURES...AND CAUSED MINOR FLOODING.  THE STORMS HAVE NOW
WEAKENED AND HAVE MOVED INTO THE IDAHO PANHANDLE.
Special weather statement, Jul 9, 5:49 PM PDT, 3 hours 41 minutes before
WAZ006-100115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
540 PM PDT SUN JUL 9 1995

THE SEVERE THUNDERSTORM WARNINGS FOR SPOKANE
COUNTY...WASHINGTON...EXTREME NORTH NEZ PERCE COUNTY...IDAHO...AND LATAH
COUNTY...IDAHO HAS EXPIRED.

THE STORMS THAT MOVED THROUGH THESE COUNTIES PRODUCED HAIL UP TO 3/4
INCH...WIND GUSTS UP TO 60 MPH OR MORE...DOWNED TREES...CAUSED NUMEROUS
POWER FAILURES...AND CAUSED MINOR FLOODING.  THE STORMS HAVE NOW
WEAKENED AND HAVE MOVED INTO THE IDAHO PANHANDLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 5:49 PM PDTTornado WarningOTXBonner, Kootenai56 min
Jul 9, 10:22 PM PDTSevere Thunderstorm WarningOTXLatah68 min
Jul 10, 2:04 AM PDTSevere Thunderstorm WarningOTXClearwater, Latah56 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1995Every severe thunderstorm warning in 1995

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.