Alert archive / Idaho / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Pocatello, ID
NWS Pocatello, ID issued this severe thunderstorm warning at Aug 17, 1990, 2:47 PM MDT for Oneida County, Power 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 Oneida County, ID, Power 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 12:00Z, 8.8 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.
- Mixed-layer CAPE
- 123 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1157 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 1:28 PM MDT | Tornado Warning | PIH | Bannock, Power | 62 min |
| Aug 17, 2:04 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Power | 26 min |
| Aug 17, 2:47 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 58 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.