Alert archive / Idaho / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Pocatello, ID

June 22, 1998Bonneville County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 22, 1998, 3:18 PM MDT for Bonneville County, Idaho. It was in force for 47 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 22, 1998, 3:18 PM MDT (21:18 UTC)
Expired
Jun 22, 1998, 4:05 PM MDT
In force
47 min
Issued by
NWS Pocatello, ID
Area
Whole counties

County Bonneville County, ID

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 22, 3:00 PM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 9.3 hours before the alert went out and 291 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 1998-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 63 joules per kilogram.LCLLFCEL10008507005003002001001 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 1998-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
63 J/kg
Mixed-layer CIN
-333 J/kg
Mixed-layer LCL
2053 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
111 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 222118 RRA
SVRPIH
IDC019-222205-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO ID
318 PM MDT MON JUN 22 1998

THE NATIONAL WEATHER SERVICE IN POCATELLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BONNEVILLE COUNTY IN SOUTHEASTERN IDAHO

* UNTIL 405 PM MDT

* AT 315 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 20 MILES SOUTHWEST OF PALISADES... MOVING
  NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PALISADES RESERVOIR AT 400 PM MDT


HAIL TO 1 INCH IN DIAMETER...BRIEF HEAVY RAIN AND WIND GUSTS TO 60
MPH ARE LIKELY WITH THIS STORM.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 2:23 PM MDTSevere Thunderstorm WarningPIHOneida37 min
Jun 22, 2:59 PM MDTSevere Thunderstorm WarningPIHOneida46 min
Jun 22, 3:12 PM MDTSevere Thunderstorm WarningPIHPower48 min
Jun 22, 3:34 PM MDTSevere Thunderstorm WarningPIHOneida66 min
Jun 22, 3:42 PM MDTSevere Thunderstorm WarningPIHBannock63 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1998Every severe thunderstorm warning in 1998

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.