Alert archive / Idaho / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 8, NWS Pocatello, ID

August 17, 1990Bingham County, Bonneville County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Aug 17, 1990, 2:47 PM MDT for Bingham County, Bonneville County, Idaho. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Aug 17, 1990, 2:47 PM MDT (20:47 UTC)
Expired
Aug 17, 1990, 3:45 PM MDT
In force
58 min
Issued by
NWS Pocatello, ID
Area
Whole counties

Counties Bingham County, ID, Bonneville 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

Lander/Hunt Fiel, WY (KLND), launched 12:00Z, 8.8 hours before the alert went out and 274 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, Lander/Hunt Fiel, WY at 12:00Z on 1990-08-17Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lander/Hunt Fiel, WY at 12:00Z on 1990-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1297 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
32 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 KPIH 172047
SVRPIH
IDC011-019-071-077-172145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
247 PM MDT FRI AUG 17 1990
 
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION... S...
 
IN SOUTHEAST IDAHO
 
   ...WESTERN BINGHAM COUNTY...BONNEVILLE COUNTY...ONIEDA COUNTY
   ...POWER COUNTY
 
...THIS WARNING IS FOR PERSONS IN THE CITYS OF MALAD...AMERICAN
FALLS...BLACKFOOT AND IDAHO FALLS...
 
AT 230 PM MDT WEATHER OBSERVATIONS AS WELL AS RADAR ...
LIGHTNING AND SATELLITE PICUTRES INDICATE THAT MORE
THUNDERSTORMS ARE OCCURRING OR WILL BE OCCURING IN THE WARNING
AREAS WITHIN THE NEXT HOUR. THE THUNDERSTORM WHICH PASSED OVER
POCATELLO LAST HOUR HAS NOW MOVED NORTHWARD INTO WESTERN BINGHAM
COUNTY AND MAY ENTER THE BLACKFOOT AREA BEFORE 300 PM MDT AND
IDAHO FALLS AT 330 PM MDT.
 
ANOTHER SEVERE THUNDERSTORM IS SW OF MALAD CITY AND WILL BE MOVING
INTO THE POWER COUNTY AREA DURING THE NEXT HOUR.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MO=VE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 1:28 PM MDTTornado WarningPIHBannock, Power62 min
Aug 17, 2:04 PM MDTSevere Thunderstorm WarningPIHBannock, Power26 min
Aug 17, 2:47 PM MDTSevere Thunderstorm WarningPIHOneida, Power58 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.