Alert archive / Idaho / Tornado Warnings in 1997
Tornado Warning 5, NWS Pocatello, ID
NWS Pocatello, ID issued this tornado warning at May 31, 1997, 5:26 PM MDT for Jefferson County, Idaho. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 31, 1997, 5:26 PM MDT (23:26 UTC)
- Expired
- May 31, 1997, 5:45 PM MDT
- In force
- 19 min
- Issued by
- NWS Pocatello, ID
- Area
- Whole counties
County Jefferson County, ID
The radar
The Pocatello radar (KSFX), 85 km from the middle of the area, began a volume at 23:27 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 31, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 11.4 hours before the alert went out and 314 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
- 347 J/kg
- Mixed-layer CIN
- -231 J/kg
- Mixed-layer LCL
- 2502 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
209 WFUS1 KPIH 312330 RRA TORPIH IDC051-312345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE POCATELLO ID 526 PM MDT SAT MAY 31 1997 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 545 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN SOUTHEAST IDAHO ...NORTH CENTRAL AND NORTHEAST JEFFERSON COUNTY AT 525 PM DOPPLER WEATHER RADAR INDICATED A POSSIBLE TORNADO ABOUT 8 MILES SOUTHWEST OF CAMAS MOVING NORTHEAST 30 MPH. REPORTS FROM THE JEFFERSON COUNTY SHERIFF INDICATE TREES AND POWER LINES HAVE BEEN BLOWN DOWN BY A TORNADO AS IT MOVED ACROSS THE MUD LAKE AND TERRETON AREA. A ROOF HAS ALSO BEEN BLOWN OFF A HOUSE. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IMMEDIATELY.
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 2:26 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 49 min |
| May 31, 2:39 PM MDT | Severe Thunderstorm Warning | PIH | Blaine | 51 min |
| May 31, 2:44 PM MDT | Severe Thunderstorm Warning | PIH | Minidoka | 46 min |
| May 31, 3:20 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 40 min |
| May 31, 3:28 PM MDT | Severe Thunderstorm Warning | PIH | Blaine | 32 min |
| May 31, 3:42 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Power | 48 min |
| May 31, 3:49 PM MDT | Severe Thunderstorm Warning | PIH | Butte | 26 min |
| May 31, 3:53 PM MDT | Severe Thunderstorm Warning | PIH | Cassia | 37 min |
| May 31, 4:05 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham | 40 min |
| May 31, 4:14 PM MDT | Severe Thunderstorm Warning | PIH | Power | 31 min |
| May 31, 4:19 PM MDT | Tornado Warning | PIH | Butte | 26 min |
| May 31, 4:38 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 37 min |
| May 31, 4:42 PM MDT | Severe Thunderstorm Warning | PIH | Cassia | 33 min |
| May 31, 4:52 PM MDT | Tornado Warning | PIH | Bannock, Bingham | 38 min |
| May 31, 5:02 PM MDT | Tornado Warning | PIH | Jefferson | 28 min |
| May 31, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 36 min |
| May 31, 5:21 PM MDT | Tornado Warning | PIH | Bannock | 39 min |
| May 31, 5:35 PM MDT | Severe Thunderstorm Warning | PIH | Oneida | 25 min |
| May 31, 5:38 PM MDT | Severe Thunderstorm Warning | PIH | Cassia | 37 min |
| May 31, 5:48 PM MDT | Severe Thunderstorm Warning | PIH | Caribou | 27 min |
Nearby
Tornado Warnings in Idaho, 1997Every tornado warning in 1997Tornadoes in 1997
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; radar from the NEXRAD Level II archive.