Alert archive / Idaho / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 3, NWS Pocatello, ID

July 31, 1990Bannock County, Caribou County, Franklin County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jul 31, 1990, 6:25 PM MDT for Bannock County, Caribou County, Franklin County, Idaho. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jul 31, 1990, 6:25 PM MDT (00:25 UTC)
Expired
Jul 31, 1990, 7:00 PM MDT
In force
35 min
Issued by
NWS Pocatello, ID
Area
Whole counties

Counties Bannock County, ID, Caribou County, ID, Franklin County, ID

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 0.4 hours before the alert went out and 196 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, Salt Lake City I, UT at 00:00Z on 1990-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 703 joules per kilogram.LCLEL10008507005003002001001 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, Salt Lake City I, UT at 00:00Z on 1990-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 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
703 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
3752 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIH 010027
SVRPIH
IDC005-011-029-242045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE POCATELLO ID
625 PM MDT TUE JUL 31 1990

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEAST IDAHO

   ...SOUTHERN BANNOCK COUNTY...FRANKLIN COUNTY...CARIBOU COUNTY AND
NORTHERN BEARLAKE COUNTY.

A THUNDERSTORM IS MOVING THROUGH SOUTHERN BANNOCK COUNTY AT THIS TIME.
AND IS PRODUCING STRONG WINDS IN EXCESS OF 60 MPH AND IS CAUSING AREAS
OF BLOWING DUST. NO RAIN OR HAIL HAS BEEN REPORTED FROM THE STORM.

THIS STORM IS MOVING TOWARD THE EAST NORTHEASfT AND SHOULD BE OUT OF
THE STATE AFTER 700 PM. PERSONS OUTSIDE SHOULD SEEK SHELTER FROM THIS
STORM IN A STRONG BUILDING.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN POCATELLO...
236-6901...COLLECT..
FITZGERALD

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 31, 6:25 PM MDTSevere Thunderstorm WarningPIHBear Lake35 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1990Every severe thunderstorm warning in 1990

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.