Alert archive / Idaho / Tornado Warnings in 1996

Tornado Warning 3, NWS Pocatello, ID

August 14, 1996Blaine County, Minidoka County, Idaho

NWS Pocatello, ID issued this tornado warning at Aug 14, 1996, 7:59 PM MDT for Blaine County, Minidoka County, Idaho. It was in force for 16 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
Aug 14, 1996, 7:59 PM MDT (01:59 UTC)
Expired
Aug 14, 1996, 8:15 PM MDT
In force
16 min
Issued by
NWS Pocatello, ID
Area
Whole counties

Counties Blaine County, ID, Minidoka County, ID

The radar

The Pocatello radar (KSFX), 91 km from the middle of the area, began a volume at 01:58 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

Elko, NV (KLKN), launched 00:00Z, 2.0 hours before the alert went out and 254 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, Elko, NV at 00:00Z on 1996-08-15Temperature 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, Elko, NV at 00:00Z on 1996-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
2949 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
116 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 
TTAA00 KPIH 150203
TORPIH
IDC013-067-150215-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
759 PM MDT WED AUG 14 1996
 
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  815 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...S...
 
IN EAST CENTRAL IDAHO
 
   ...SOUTHEASTERN BLAINE COUNTY
 
IN SOUTHEAST IDAHO
 
   ...EAST CENTRAL MINIDOKA COUNTY
 
AT 755 PM DOPPLER WEATHER RADAR INDICATED A TORNADO MAY BE DEVELOPING IN
EASTERN MINIDOKA COUNTY ABOUT 15 MILES NORTHEAST OF RUPERT. THE STORM
THAT ASSOCIATED WITH THIS POSSIBLE TORNADO IS MOVING EAST AT 15 MPH AND
WILL CROSS THE SOUTHEAST PORTION OF BLAINE COUNTY WELL NORTH OF
INTERSTATE 86 AND 84.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this tornado warning went out at Aug 14, 2:33 PM MDT, 5 hours 26 minutes earlier.

Area forecast discussion, Aug 14, 2:33 PM MDT, 5 hours 26 minutes before
KSFX 88D/DIAL IN TO NEIGHBORING RADARS AT 1945Z SHOW ONLY WIDELY
SCATTERED TSRA AND LEFT-OVER CI DEBRIS FROM PASSING SHORTWAVE ENERGY
OVER ZONES 10 AND 12 WITH BEST INSTABILITY SITUATED OVER SW IDAHO/SE
OREGON.  DESPITE SOME MONSOONAL MOISTURE BEING CIRCULATED NORTH AROUND
50H SW US RIDGE INTO EAST ID COUPLED WITH MODEST CAPES AND 70H THETA
RIDGE OVER AREA...CONVECTION HAS BEEN SLOW TO FIRE OVER EAST ID.  AREA
OF CONCERN IS CONVECTION FROM CENTRAL ID AND NEAR EKO ADVECTING E INTO
SE IDAHO THE NEXT FEW HOURS AND COULD SEE SOME BETTER ACTIVITY LATE THIS
AFTERNOON/EARLY EVENING.  12Z ETA RUN PREFERRED IN MOVING THE 85H
SHORTWAVE TROF THROUGH THE REGION LATER TONIGHT.  WITH INVERTED V
AIRMASS TSRA EXPECT COULD SEE SOME ISOLATED GUSTY DOWNBURST WINDS FOR
THE REST OF THIS AFTERNOON.  TONIGHT...ANY LEFT-OVER CONVECTION SHOULD
END AFTER SUNSET AND ACCEPT PROGGED MOS MIN TEMPS GIVEN CURRENT DEWPOINT
DEPRESSION TRENDS IN OBS.  THU...ACCEPT IDEA OF 20% POPS ALL ZONES WITH
SIMILAR ALIGNMENT OF 70H THETA E RIDGE AND MID-LEVEL MOISTURE OVER AREA.
FRI...TEMPS TO WARM SLIGHTLY INTO MID 90S AS UPPER RIDGE SHARPENS
SLIGHTLY.   EXTENDED...00Z MRF SOLUTION FINALLY BRINGS IN A DEEP ENOUGH
50H PACIFIC TROF TO PUSH THE LARGE SW US ANTICYCLONE EAST INTO THE
CENTRAL PLAINS.  THIS WILL BRING IN A COOLER PACIFIC AIRMASS FOR LATE
WEEKEND TIMEFRAME WITH MAX TEMPS FALLING BACK INTO THE 80S.
TA

PIH BB 056/091 054/095 055 04221
IDA BB 051/090 052/T094 053 04221

In the hours before

Special weather statement, Aug 14, 3:54 PM MDT, 4 hours 5 minutes before
IDZ002-003-010-012-142300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
352 PM MDT WED AUG 14 1996

...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS CENTRAL
   AND EAST IDAHO...

AT 345 PM MDT...DOPPLER WEATHER RADAR INDICATED SHOWERS AND
THUNDERSTORMS INCREASING IN COVERAGE AND INTENSITY ACROSS CUSTER...
BUTTE...AND CASSIA COUNTIES.  OTHER SHOWERS AND THUNDERSTORMS WERE
FORMING WEST OF BURLEY.  THE PRECIPITATION WAS MOVING EAST AT ABOUT 20
MPH.  THE STRONGEST STORMS WILL PASS SOUTH OF CHALLIS AND THROUGH MACKAY
RANGER STATION BY ABOUT 415 PM MDT.

PERSONS IN THESE AREAS SHOULD REMAIN ALERT TO STRONG GUSTY WINDS...
DANGEROUS CLOUD TO GROUND LIGHTNING...LOCALLY HEAVY DOWNPOURS AND
POSSIBLY SOME SMALL HAIL.  IF THREATENING WEATHER APPROACHES...SEEK SAFE
SHELTER IMMEDIATELY.

TA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 6:04 PM MDTSevere Thunderstorm WarningPIHLincoln41 min
Aug 14, 6:05 PM MDTSevere Thunderstorm WarningPIHClark, Jefferson40 min
Aug 14, 6:35 PM MDTSevere Thunderstorm WarningPIHMinidoka40 min
Aug 14, 6:48 PM MDTSevere Thunderstorm WarningPIHBlaine, Power42 min
Aug 14, 7:12 PM MDTSevere Thunderstorm WarningPIHBingham48 min
Aug 14, 7:41 PM MDTSevere Thunderstorm WarningPIHBingham, Bonneville49 min

Nearby

Tornado Warnings in Idaho, 1996Every tornado warning in 1996Tornadoes in 1996

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.