Alert archive / Idaho / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 13, NWS Pocatello, ID

June 8, 1996Cassia County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 8, 1996, 3:21 PM MDT for Cassia County, Idaho. It was in force for 54 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 8, 1996, 3:21 PM MDT (21:21 UTC)
Expired: Jun 8, 1996, 4:15 PM MDT
In force: 54 min
Issued by: NWS Pocatello, ID
Area: Whole counties

County Cassia County, ID

The radar

The Pocatello radar (KSFX), 118 km from the middle of the area, began a volume at 21:24 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 12:00Z, 9.4 hours before the alert went out and 165 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3152 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 100 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 082122
SVRPIH
IDC031-082215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
321 PM MDT SAT JUN 8 1996
 
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM MDT
...
 
IN SOUTHEAST IDAHO
 
   ...CENTRAL CASSIA COUNTY
 
AT 322 PM...DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM JUST
WEST OF OAKLEY. THE STORM WAS MOVING NORTHEAST AT ABOUT 20 MPH AND WILL
AFFECT THE COMMUNITIES OF OAKLEY...MARION...AND CHURCHILL BY 330 PM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 8, 2:36 PM MDT, 45 minutes earlier.

Area forecast discussion, Jun 8, 2:36 PM MDT, 45 minutes before

KSFX 88D AT 20Z SHOWS DEVELOPING TSRA/SHRA OVER LOWER SNAKE PLAIN AND
MAGIC VALLEY WITH A SECOND AREA OF ECHOES OVER ZONE 12.  H2O/IR CHANNEL
SHOWS MOISTURE ADVECTION OCCURRING AT MID/HIGHER LEVELS FROM SLC NORTH
INTO SOUTH ID.  LOWER LEVELS OF ATMOSPHERE STILL REMAIN DRY FROM 12Z
SOUNDING DATA.  70H THETA RIDGE ALSO NOSING INTO SOUTH ID TODAY.  CAPES
RUNNING ABOUT 800+ AT SLC/EKO SOUNDINGS AND CONCUR WITH 94O THAT THERE
COULD BE SOME ISOLATED PULSE SEVERE CELLS BUT EXPECT MAINLY DRY VARIETY
WITH MOST BASES ALOFT.  COULD SEE SOME GUSTY WINDS FROM OUFLOW
BOUNDARIES.  MAX TEMPS TO HOVER NEAR RECORD LEVELS OVER SNAKE VALLEY
THIS AFTERNOON WITH AXIS OF 85H THERMAL RIDGE OF WARM AIR SITUATED OVER
EAST ID ZONES.  50H RIDGE AXIS EAST OF AREA INTO WY BUT STILL ENOUGH
RIDGING OVER AREA FOR MOSTLY SUNNY DAY TODAY AND FAIR TONIGHT.  12Z
MODEL RUNS CONTINUE TREND FROM OLD PROGS OF CONVECTIVE AIRMASS OVER AREA
WITH DIURNAL TSAR WITH PEAK AFTERNOON HEATING.  THUS...WILL FOLLOW TREND
OF MOS FWC OUTPUT WITH SLGHT CHC/CHC POPS THROUGH SHORT-TERM PERIOD WITH
TEMPS COOLER...ALBEIT STILL ABOVE SEASONAL NORMS FOR SUN/MON.  20% POPS
IN VALLEY WITH 30% POPS IN HIGHLAND ZONES.  OVERALL PATTERN PERSISTS
INTO EARLY NEXT WEEK FROM EXTENDED PROGS.    TA

PIH BB 056/088 054/086 051 04221
IDA BB 053/087 052/082 050 04221

In the hours before

Special weather statement, Jun 8, 3:15 PM MDT, 6 minutes before

IDZ003-004-012-082300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
310 PM MDT SAT JUN 8 1996

...SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE LOWER SNAKE RIVER
   VALLEY...

AT 305 PM...DOPPLER WEATHER RADAR INDICATED A CLUSTER OF SHOWERS AND
THUNDERSTORMS LOCATED FROM JUST WEST OF OAKLEY TO BETWEEN JUNIPER AND
ROY.  THIS ACTIVITY WAS MOVING EAST AT ABOUT 20 MPH.  THESE STORMS WILL
AFFECT OAKLEY AND JUNIPER BY ABOUT 335 PM MDT.

PERSONS TRAVELLING ACROSS PORTIONS OF EAST ID THIS AFTERNOON SHOULD BE
PREPARED FOR STRONG GUSTY WINDS...DANGEROUS LIGHTNING...LOCALLY HEAVY
RAINS...AND POSSIBLY SOME SMALL HAIL WITH STRONG THUNDERSTORMS. IF
THUNDERSTORMS APPROACH YOUR AREA SEEK SHELTER INSIDE UNTIL THEY PASS.

STAY TUNED TO TV...COMMERCIAL RADIO...OR NOAA WEATHER RADIO FOR THE
LATEST UPDATES.

TA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 9:25 PM MDT	Severe Thunderstorm Warning	PIH	Lincoln	50 min
Jun 8, 4:16 PM MDT	Severe Thunderstorm Warning	PIH	Oneida	44 min
Jun 8, 4:53 PM MDT	Severe Thunderstorm Warning	PIH	Cassia	52 min
Jun 8, 5:13 PM MDT	Severe Thunderstorm Warning	PIH	Power	47 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1996 Every severe thunderstorm warning 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.