Alert archive / Idaho / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 29, NWS Spokane, WA

July 28, 1995Clearwater County, Idaho County, Idaho

NWS Spokane, WA issued this severe thunderstorm warning at Jul 28, 1995, 7:49 PM PDT for Clearwater County, Idaho County, Idaho. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Jul 28, 1995, 7:49 PM PDT (02:49 UTC)
Expired
Jul 28, 1995, 8:30 PM PDT
In force
41 min
Issued by
NWS Spokane, WA
Area
Whole counties

Counties Clearwater County, ID, Idaho County, ID

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 2.8 hours before the alert went out and 172 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 1995-07-29Temperature 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 00:00Z on 1995-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939587897117Sfc1 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
3702 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
149 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 
TTAA00 KBOI 290252 RRA
SVRLWS
IDC035-049-290330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LEWISTON ID
ISSUED BY BOISE ID
749 PM PDT FRI JUL 28 1995
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL IDAHO
 
   ...SOUTHEASTERN CLEARWATER COUNTY...NORTHEASTERN IDAHO COUNTY
 
AS OF 745 PM PDT A THUNDERSTORM IN NORTHERN IDAHO COUNTY...ABOUT 90
MILES EAST OF LEWISTON...WAS STILL SEVERE AS INDICATED ON WEATHER RADAR.
 
THIS THUNDERSTORM WAS MOVING TOWARD THE EAST-NORTHEAST ABOUT 35 MPH
PARALLEL TO AND ABOUT FIVE MILES NORTH OF U.S. HIGHWAY 12. THE FRINGES
OF THE STORM WERE IN SOUTHEASTERN CLEARWATER COUNTY.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERA4BLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 6:47 PM PDTSevere Thunderstorm WarningOTXClearwater, Idaho, Lewis58 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.