Alert archive / Idaho / Flash Flood Warnings in 1996

Flash Flood Warning 2, NWS Pocatello, ID

June 13, 1996Power County, Idaho

NWS Pocatello, ID issued this flash flood warning at Jun 13, 1996, 3:55 PM MDT for Power County, Idaho. It was in force for 65 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, 3:55 PM MDT (21:55 UTC)
Expired
Jun 13, 1996, 5:00 PM MDT
In force
65 min
Issued by
NWS Pocatello, ID
Area
Whole counties

County Power County, ID

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 9.9 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-pSkew-T log-p diagram, Salt Lake City I, UT at 12:00Z on 1996-06-13Temperature 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, Salt Lake City I, UT at 12:00Z on 1996-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
3418 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
130 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 132158
FFWPIH
IDC077-132300-
 
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
355 PM MDT THU JUN 13 1996
 
THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  500 PM MDT
 
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST IDAHO
 
   ...SOUTHWESTERN POWER COUNTY INCLUDING THE COMMUNITY OF ROCKLAND...
 
A SEVERE THUNDERSTORM WARNING CONTINUES IN SOUTHWEST POWER COUNTY
INCLUDING THE COMMUNITY OF ROCKLAND. THIS STORM IS NEARLY STATIONARY
AND PRODUCING HEAVY RAIN...LARGE HAIL AND STRONG GUSTY WINDS. DOPPLER RA
RPRECIPITATION SHOWS NEARLY 1.5 INCHES OF RAIN IN THE PAST HOUR.
 
TRAVELLERS USING HIGHWAY 37 AND OTHER COUNTY ROADS NEAR ROCKLAND SHOULD
BE PREPARED FOR FLASH FLOODING AND POSSIBLE LARGE DAMAGING HAIL.
 
BAUCK

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jun 13, 2:12 PM MDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jun 13, 2:12 PM MDT, 1 hour 43 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, 1 hour 20 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 STAY TUNED TO NOAA WEATHER RADIO AND
THE NATIONAL WEATHER SERVICE FOR FURTHER STATEMENTS.

DJB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 3:24 PM MDTSevere Thunderstorm WarningPIHPower51 min
Jun 13, 3:25 PM MDTSevere Thunderstorm WarningPIHPower35 min
Jun 13, 3:55 PM MDTSevere Thunderstorm WarningPIHPower65 min
Jun 13, 4:03 PM MDTSevere Thunderstorm WarningPIHCassia42 min
Jun 13, 4:10 PM MDTSevere Thunderstorm WarningPIHCassia50 min

Nearby

Flash Flood Warnings in Idaho, 1996Every flash flood 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.