Alert archive / Idaho / Tornado Warnings in 2000

Tornado Warning 6, NWS Pocatello, ID

September 1, 2000Clark County, Idaho

NWS Pocatello, ID issued this tornado warning at Sep 1, 2000, 1:20 PM MDT for Clark County, Idaho. It was in force for 35 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
Sep 1, 2000, 1:20 PM MDT (19:20 UTC)
Expired
Sep 1, 2000, 1:55 PM MDT
In force
35 min
Issued by
NWS Pocatello, ID
Area
Whole counties

County Clark County, ID

The radar

The Pocatello radar (KSFX), 134 km from the middle of the area, began a volume at 19:21 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.

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 7.3 hours before the alert went out and 318 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 2000-09-01Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boise Airport, ID at 12:00Z on 2000-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
1500 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
105 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.

000 
WFUS55 KPIH 011921
TORPIH

IDC033-011955-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WARNING...CORRECTED
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
120 PM MDT FRI SEP 1 2000

THE NATIONAL WEATHER SERVICE IN POCATELLO/IDAHO FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CLARK COUNTY IN EASTERN IDAHO

* UNTIL 155 PM MDT

* AT 120 PM MDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 7 MILES SOUTHEAST OF DUBOIS... MOVING NORTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  RURAL RESIDENTS AND TRAVELERS IN THE WARNED AREA

THIS WARNING REPLACES THE PREVIOUS TORNADO WARNING FOR SOUTHEASTERN
CLARK AND NORTHERN JEFFERSON COUNTIES IN EASTERN ID*AHO.

THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE... GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR. AVOID WINDOWS AND DOORS.
N

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 11:42 AM MDTSevere Thunderstorm WarningPIHBonneville33 min
Sep 1, 11:48 AM MDTSevere Thunderstorm WarningPIHButte47 min
Sep 1, 11:54 AM MDTTornado WarningPIHButte, Clark31 min
Sep 1, 12:18 PM MDTSevere Thunderstorm WarningPIHMadison47 min
Sep 1, 12:20 PM MDTTornado WarningPIHJefferson35 min
Sep 1, 12:23 PM MDTSevere Thunderstorm WarningPIHBannock, Caribou47 min
Sep 1, 12:51 PM MDTTornado WarningPIHClark, Jefferson34 min
Sep 1, 12:56 PM MDTSevere Thunderstorm WarningPIHFremont, Madison49 min
Sep 1, 2:40 PM MDTSevere Thunderstorm WarningPIHJefferson, Madison45 min
Sep 1, 2:44 PM MDTSevere Thunderstorm WarningPIHBonneville31 min
Sep 1, 3:02 PM MDTSevere Thunderstorm WarningPIHCassia33 min
Sep 1, 3:16 PM MDTSevere Thunderstorm WarningPIHLincoln49 min
Sep 1, 3:28 PM MDTSevere Thunderstorm WarningPIHPower32 min
Sep 1, 3:31 PM MDTSevere Thunderstorm WarningPIHBingham34 min
Sep 1, 3:42 PM MDTSevere Thunderstorm WarningPIHMinidoka33 min
Sep 1, 3:55 PM MDTSevere Thunderstorm WarningPIHBingham35 min
Sep 1, 4:06 PM MDTSevere Thunderstorm WarningPIHBlaine34 min
Sep 1, 4:17 PM MDTSevere Thunderstorm WarningPIHButte33 min
Sep 1, 4:24 PM MDTTornado WarningPIHButte31 min
Sep 1, 4:46 PM MDTTornado WarningPIHButte34 min
Sep 1, 5:06 PM MDTSevere Thunderstorm WarningPIHButte34 min
Sep 1, 5:29 PM MDTSevere Thunderstorm WarningPIHClark41 min

Nearby

Tornado Warnings in Idaho, 2000Every tornado warning in 2000Tornadoes in 2000

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.