Alert archive / Idaho / Flash Flood Warnings in 1990
Flash Flood Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this flash flood warning at Aug 16, 1990, 2:22 PM MDT for 5 counties in Idaho. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 16, 1990, 2:22 PM MDT (20:22 UTC)
- Expired
- Aug 16, 1990, 5:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pocatello, ID
- Area
- Whole counties
Counties Bingham County, ID, Bonneville County, ID, Jefferson County, ID, Madison County, ID, Teton 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, 8.4 hours before the alert went out and 268 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2468 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 7 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 162024 RRA FFWPIH IDC023-033-043-051-065-081-005-007-011-019-029-041-071-077-170130- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE POCATELLO ID 222 PM MDT THU AUG 16 1990 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... S... IN IDAHO ...BUTTE COUNTY...CLARK COUNTY...FREMONT COUNTY...JEFFERSON COUNTY ...MADISON COUNTY...TETON COUNTY IN SOUTHEAST IDAHO ...BANNOCK COUNTY...BEAR LAKE COUNTY...BINGHAM COUNTY ...BONNEVILLE COUNTY...CARIBOU COUNTY...FRANKLIN COUNTY...ONIEDA CO ...POWER COUNTY ...THIS WARNING COVERS ALL OF SOUTHEAST IDAHO EXCEPT FOR LEMHI COUNTY... A WEATHER SPOTTER IN BANCROFT IDAHO LOCATED NORTHEAST OF LAVA HOT SPRINGS HAS REPORTED THAT 2 INCHES OF RAIN OCCURRED DURING THE PASSAGE OF A THUNDERSTORM. THE SHERIFF IN CARIBOU COUNTY REPORTS THAT HEAVY RAINFALL HAS BEEN OCCURING IN THE COUNTY FOR THE LAST HOUR OR SO BUT DID NOT HAVE ANY RAINFALL AMOUNTS. THE NATIONAL WEATHER SERVICE REQUESTS THAT REPORTS OF THE STORM BE CALLED IN COLLECT AT 236-6901. END...WSO JF A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
What forecasters said that day
The local office's own words before this flash flood 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, Aug 16, 1:17 PM MDT, 1 hour 5 minutes before
IDZ003-004-012-170315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE POCATELLO ID 115 PM MDT THU AUG 16 1990 ...THUNDERSTORMS IN SOUTHEAST IDAHO THIS AFTERNOON... AT 100 PM MDT SEVERAL TYPES OF OBSERVATIONS SHOW THAT THUNDERSTORMS FORMED IN SOUTHERN SECTIONS OF SOUTHEAST IDAHO FROM THE UTAH BORDER NORTHWARD TO NEAR IDAHO FALLS. THEY ARE OCCURING FROM MALAD CITY TO THE EAST OF POCATELLO...BLACKFOOT AND IDAHO FALLS WHICH PLACES MOST OF THE ACTIVITY IN THE MOUNTAINS OF SOUTHEAST IDAHO. THE THUNDERSTORMS ARE EXPECTED TO COVER MUCH OF SOUTHEAST IDAHO THIS AFTERNOON AND THIS EVENING. SOME OF THE THUNDERSTORMS MAY PRODUCE HEAVY RAIN...NUMEROUS LIGHTNING STRIKES AND GUSTY WINDS TO NEAR 45 MPHPERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD BE ALERT FOR THE APPROACH OF THESE STORMS AND GO TO AN ENCLOSED...STURDY SHELTER. FURTHER STATEMENTS ABOUT THE PROGRESS OF THE THUNDERSTORMS WILL BE ISSUED WHEN NECCESSARY. PLEASE RELAY ANY THUNDERSTORM REPORTS TO YOUR NATIONAL WEATHER SERVICE OFFICE IF POCATELLO...COLLECT AT 236-6901. WSO..PIH JF
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 2:22 PM MDT | Flash Flood Warning | PIH | Bear Lake, Caribou, Franklin | 3 hr |
| Aug 16, 2:22 PM MDT | Flash Flood Warning | PIH | Bannock, Oneida, Power | 3 hr |
| Aug 16, 2:22 PM MDT | Flash Flood Warning | PIH | Butte, Clark, Fremont | 3 hr |
Nearby
Flash Flood Warnings in Idaho, 1990Every flash flood 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.