Alert archive / Idaho / Tornado Warnings in 1997

Tornado Warning 2, NWS Boise, ID

June 17, 1997Payette County, Idaho

NWS Boise, ID issued this tornado warning at Jun 17, 1997, 5:19 PM MDT for Payette County, Idaho. It was in force for 26 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
Jun 17, 1997, 5:19 PM MDT (23:19 UTC)
Expired
Jun 17, 1997, 5:45 PM MDT
In force
26 min
Issued by
NWS Boise, ID
Area
Whole counties

County Payette County, ID

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 17, 5:00 PM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 11.3 hours before the alert went out and 66 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, Boise Airport, ID at 12:00Z on 1997-06-17Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boise Airport, ID at 12:00Z on 1997-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
2029 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
44 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.

036 
WFUS1 KBOI 172320 RRA
TORBOI
IDC075-172345-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BOISE ID
519 PM MDT TUE JUN 17 1997
 
THE NATIONAL WEATHER SERVICE IN BOISE ID HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  545 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST IDAHO
 
   ...PAYETTE COUNTY
 
AT 515 PM MDT A SPOTTER REPORTED A TORNADO ON THE GROUND IN ONTARIO
OREGON AND WAS MOVING EAST INTO PAYETTE COUNTY IDAHO.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 5:01 PM MDTSevere Thunderstorm WarningBOICanyon, Payette44 min
Jun 17, 5:25 PM MDTSevere Thunderstorm WarningBOIGem50 min
Jun 17, 5:53 PM MDTSevere Thunderstorm WarningBOIBoise52 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.