Alert archive / Idaho / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 16, NWS Pocatello, ID

June 13, 1998Fremont County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 13, 1998, 7:30 PM MDT for Fremont County, Idaho. It was in force for 20 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, 1998, 7:30 PM MDT (01:30 UTC)
Expired: Jun 13, 1998, 7:50 PM MDT
In force: 20 min
Issued by: NWS Pocatello, ID
Area: Whole counties

County Fremont County, ID

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 1.5 hours before the alert went out and 279 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: 243 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1701 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 13, 2:00 PM MDT, 5 hours 30 minutes earlier.

Area forecast discussion, Jun 13, 2:00 PM MDT, 5 hours 30 minutes before

EASTERN IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
200 PM MDT SAT JUN 13 1998

A GOOD LINE OF THUNDERSTORMS HAS DEVELOPED THIS AFTERNOON OVER THE
CWA.  THESE WILL CONTINUE TO PUSH SOUTHEAST INTO THE EVENING HOURS
BEFORE DISSIPATING.  A FEW SHOWERS MAY ACTUALLY LINGER THROUGH MUCH OF
THE NIGHT OVER ZONE 19 AS A SHORTWAVE SWINGS THROUGH SOUTHWEST MT.  A
TIGHT TEMPERATURE GRADIENT IS PRODUCING BREEZY CONDITIONS IN ZONES 20
AND 21 WHICH WILL SLOWLY DIMINISH THROUGH THE NIGHT.  A LITTLE DRIER
NORTHWEST FLOW DEVELOPS SUNDAY BUT WILL NOT RULE OUT A SHOWER OR TWO
WITH A RELATIVELY UNSTABLE AIRMASS SO WILL INCLUDE 10 POPS IN MOST
AREAS.  ANOTHER SHORTWAVE STARTS WORKING THROUGH THE NORTHWEST FLOW
AND PUSHES INTO THE AREA ON MONDAY WHICH WILL BRING A FEW MORE CLOUDS
AND ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS TO THE AREA.  A MUCH
STRONGER SYSTEM WILL MOVE INTO THE INTERMOUNTAIN WEST ON TUESDAY.  DDB

.WSR88D KSBFX OPERATIONAL...VCP21.

IDA BB 046/066 043/069 045 05311
PIH BB 047/066 045/070 046 05211

In the hours before

Local storm report, Jun 13, 4:37 PM MDT, 2 hours 53 minutes before

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Local storm report, Jun 13, 4:37 PM MDT, 2 hours 53 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 7:04 PM MDT	Severe Thunderstorm Warning	PIH	Fremont	31 min
Jun 13, 7:27 PM MDT	Severe Thunderstorm Warning	PIH	Madison	63 min
Jun 13, 7:44 PM MDT	Severe Thunderstorm Warning	PIH	Teton	66 min

Nearby

Severe Thunderstorm Warnings in Idaho, 1998 Every 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.