Alert archive / Idaho / Tornado Warnings in 1997
Tornado Warning 4, NWS Pocatello, ID
NWS Pocatello, ID issued this tornado warning at May 31, 1997, 5:21 PM MDT for Bannock County, Idaho. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 31, 1997, 5:21 PM MDT (23:21 UTC)
- Expired
- May 31, 1997, 6:00 PM MDT
- In force
- 39 min
- Issued by
- NWS Pocatello, ID
- Area
- Whole counties
County Bannock County, ID
The radar
The Pocatello radar (KSFX), 61 km from the middle of the area, began a volume at 23:21 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 31, 5:30 PM MDT | Hail 0.75 | Inkom, ID | Hail observed along Marsh Creek Road. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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
Salt Lake City I, UT (KSLC), launched 12:00Z, 11.4 hours before the alert went out and 212 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
- 2586 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
185 WFUS1 KPIH 312325 RRA TORPIH IDC005-010000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE POCATELLO ID 521 PM MDT SAT MAY 31 1997 THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 600 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN SOUTHEAST IDAHO ...CENTRAL BANNOCK COUNTY AT 520 PM DOPPLER WEATHER RADAR SHOWED A POTENTIAL TORNADO ABOUT 5 MILES SOUTHWEST OF INKOM MOVING NORTHEAST AT 40 MPH. RESIDENTS AND TRAVELERS IN THE INKOM AREA SHOULD MOVE TO SHELTER IMMEDIATELY TO SAFEGUARD LIFE.
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, 5:26 PM MDT | Tornado Warning | PIH | Jefferson | 19 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.