Alert archive / Idaho / Tornado Warnings in 1996

Tornado Warning 1, NWS Pocatello, ID

June 13, 1996Power County, Idaho

NWS Pocatello, ID issued this tornado warning at Jun 13, 1996, 8:03 PM MDT for Power County, Idaho. It was in force for 27 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 13, 1996, 8:03 PM MDT (02:03 UTC)
Expired: Jun 13, 1996, 8:30 PM MDT
In force: 27 min
Issued by: NWS Pocatello, ID
Area: Whole counties

County Power County, ID

The radar

The Pocatello radar (KSFX), 47 km from the middle of the area, began a volume at 02:06 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

Salt Lake City I, UT (KSLC), launched 00:00Z, 2.1 hours before the alert went out and 227 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: 3905 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 47 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 
TTAA00 KPIH 140208
TORPIH
IDC077-140230-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
803 PM MDT THU JUN 13 1996
 
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM MDT
...
 
IN SOUTHEAST IDAHO
 
   ...NORTHWEST AND WEST CENTRAL POWER COUNTY
 
AT 800 PM MDT...A POLICE OFFICER REPORTED A TORNADO ABOUT 10 MILES
NORTHWEST OF AMERICAN FALLS. THE TORNADO WAS MOVING SLOWLY NORTHEAST.
 
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.
 
TAKE SHELTER IMMEDIATELY!
 
TA

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 Jun 13, 2:12 PM MDT, 5 hours 51 minutes earlier.

Area forecast discussion, Jun 13, 2:12 PM MDT, 5 hours 51 minutes before

CU VICINITY STATION BUILDING WITHOUT CAP WITH CB DEVELOPMENT IMMINENT.
DEWPOINTS REMAINING FAIRLY HIGH SO RISK OF HAIL REMAINING WITH STRONGER
CELLS.  HELICITY LOW BOISE SOUNDING HOWEVER INCREASES TO MODEST VALUE
OVER SALT LAKE.  BOTTOM LINE...MOST ACTIVITY SHOULD BE PULSE NATURE WITH
ISOLATED SEVERE POSSIBLE DUE MAINLY TO MICROBURST POTENTIAL.  SHORTWAVE
ENTERING PACIFIC NORTHWEST COAST WILL SHEAR NORTHEAST ACROSS PANHANDLE
OF IDAHO FRIDAY.  COOLER/DRYER SURFACE AIR LIKELY BECOMING HELD UP IN
SOUTHCENTRAL IDAHO VICINITY MAGIC AND UPPER SNAKE RIVER VALLEY.
CONVECTION A GOOD BET...ESPECIALLY OVER MOUNTAINS AGAIN FRIDAY.
HOWEVER...SOME STABILIZATION DUE TO LOW LEVEL DRYING POSSIBLE IN SNAKE
RIVER PLAIN BY LATE IN DAY.  FLOW BACKS SLIGHTLY OVER WEEKEND ALLOWING
WEAK DISTURBANCES TO OCCASIONALLY INTERACT WITH INTERMOUNTAIN MOISTURE.
BAUCK

PIH BB 055/085 051/087 052 03321
IDA BB 053/084 050/086 051 03221

In the hours before

Special weather statement, Jun 13, 2:35 PM MDT, 5 hours 28 minutes before

IDZ004-132130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
234 PM MDT THU JUN 13 1996

...STRONG THUNDERSTORMS DEVELOPED IN CASSIA COUNTY...

AT 230 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS HAD DEVELOPED IN SOUTHCENTRAL CASSIA COUNTY BETWEEN THE
COUMMUNITIES OF ELBA AND ALMO.  ANY OF THESE THUNDERSTORMS HAVE THE
POTENTIAL OF PRODUCING SMALL HAIL...FREQUENT LIGHTNING...BRIEF HEAVY
RAINFALL AND LOCALLY GUSTY WINDS AS THEY MOVE NORTHEAST AT 10 MPH.
MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP THROUGH THE REMAINDER OF
THE AFTERNOON.

RESIDENTS SHOULD BE PREPARED FOR RAPIDLY CHANGING WEATHER CONDITIONS
WITH APPROACHING THUNDERSTORMS AND STAY TUNED TO NOAA WEATHER RADIO AND
THE NATIONAL WEATHER SERVICE FOR FURTHER STATEMENTS.

DJB

Special weather statement, Jun 13, 4:43 PM MDT, 3 hours 20 minutes before

IDZ012-132330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
440 PM MDT THU JUN 13 1996

...STRONG THUNDERSTORM DEVELOPING IN CENTRAL TETON COUNTY...

AT 440 PM DOPPLER WEATHER RADAR SHOWED A STRONG THUNDERSTORM
DEVELOPING OVER CENTRAL TETON COUNTY ABOUT 5 TO 10 MPH NORTHWEST OF
DRIGGS. THIS STORM IS MOVING EAST TO NORTHEAST AT 15 MPH AND WILL
EFFECT EASTERN TETON COUNTY THROUGH 530 PM.  EXPECT BRIEF HEAVY
RAIN...PEA-SIZE HAIL AND GUSTY WINDS TO 35 MPH WITH THIS STORM.

END/BAUCK

Special weather statement, Jun 13, 5:23 PM MDT, 2 hours 40 minutes before

IDZ004-140000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE POCATELLO ID
510 PM MDT THU JUN 13 1996

...STRONG THUNDERSTORMS EASTERN POWER AND WESTERN BANNOCK COUNTY...

AT 510 PM DOPPLER WEATHER RADAR AND SATELLITE SHOWED A LINE OF STRONG
THUNDERSTORMS ENTERING SOUTHWEST BANNOCK COUNTY WEST OF THE
COMMUNITIES OF MCCAMMON...ROBIN AND HAWKINS.  THESE STORMS ARE MOVING
EAST AT 15 MPH AND WILL PRODUCE BRIEF HEAVY RAIN...PEA-SIZE HAIL AND
G|USTY WINDS TO 45 MPH.

END/BAUCK

Local storm report, Jun 13, 6:16 PM MDT, 1 hour 47 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO ID
615 PM MDT THU JUNE 13 1996

TIME(MDT)   ...CITY LOCATION...      STATE      ...EVENT/REMARKS...
            ...COUNTY...

0400 PM     POCATELLO                 ID        0.25 INCH HAIL
06/13/96    BANNOCK                             HEAVY RAIN AND PEA-
                                                SIZE HAIL OBSERVED IN
                                                SOUTH PART
                                                POCATELLO...MINK
                                                CREEK AREA.

0410 PM     1 S POCATELLO             ID        0.75 INCH HAIL
06/13/96    BANNOCK                             SPOTTER IN JOHNNY
                                                CREEK AREA REPORT
                                                0.27 INCH PRECIP AND
                                                PEA TO DIME-SIZE
                                                HAIL.

0425 PM     5 SE POCATELLO            ID        HEAVY RAIN
06/13/96    BANNOCK                             REPORT FROM INKOM
                                                PORT OF ENTRY.

0424 PM     15 S POCATELLO            ID        HEAVY RAIN AND HAIL
06/13/96    POWER                               SPOTTER IN CRYSTAL
                                                OBSERVED 30-40 MPH
                                                WINDS AND PEA-SIZE H
                                                HAIL.

0440 PM     COLD WATER                ID        0.75 INCH HAIL
06/13/96    POWER

BAUCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:27 PM MDT	Severe Thunderstorm Warning	PIH	Clark	63 min
Jun 14, 3:44 PM MDT	Severe Thunderstorm Warning	PIH	Cassia	61 min
Jun 14, 3:54 PM MDT	Severe Thunderstorm Warning	PIH	Fremont	36 min

Nearby

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