Alert archive / Idaho / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 4, NWS Pocatello, ID

June 1, 2001Bingham County, Blaine County, Power County, Idaho

NWS Pocatello, ID issued this severe thunderstorm warning at Jun 1, 2001, 8:25 PM MDT for Bingham County, Blaine County, Power County, Idaho. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 1, 2001, 8:25 PM MDT (02:25 UTC)
Expired: Jun 1, 2001, 9:00 PM MDT
In force: 35 min
Issued by: NWS Pocatello, ID
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Bingham County, ID, Blaine County, ID, Power County, ID

The radar

The Pocatello radar (KSFX), 29 km from the middle of the area, began a volume at 02:26 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

Boise Airport, ID (KBOI), launched 00:00Z, 2.4 hours before the alert went out and 260 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: 169 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 4532 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 45 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 
WUUS55 KPIH 020225
SVRPIH
IDC011-013-023-077-020300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
825 PM MDT FRI JUN 1 2001

THE NATIONAL WEATHER SERVICE IN POCATELLO/IDAHO FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL BUTTE COUNTY IN SOUTHEAST IDAHO
  SOUTHWESTERN BINGHAM COUNTY IN SOUTHEAST IDAHO
  SOUTHEASTERN BLAINE COUNTY IN SOUTHEAST IDAHO
  NORTHWESTERN POWER COUNTY IN SOUTHEAST IDAHO

* UNTIL 900 PM MDT

* AT 814 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EXTREME SOUTHEASTERN BLAINE COUNTY...OR
  ABOUT 25 MILES NORTHWEST OF AMERICAN FALLS...MOVING NORTHEAST AT 20
  MPH.

STRONG AND DAMAGING WINDS ARE LIKELY FROM THIS STORM...BUT THERE WILL
BE LITTLE RAIN. TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM
PASSES.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE 
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...AND DEADLY LIGHTNING. 
PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG 
BUILDING BUT AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RjELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN POCATELLO/IDAHO FALLS.

LAT...LON 4316 11277 4342 11301 4301 11340 4287 11325

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 1, 7:35 PM MDT, 50 minutes earlier.

Area forecast discussion, Jun 1, 7:35 PM MDT, 50 minutes before

SOUTHEAST IDAHO AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
735 PM MDT FRI JUN 01 2001

KBOI 00Z SOUNDING SHOWS THE INVERTED V SOUNDING...WITH DRY
MICROBURST POTENTIAL OF 30KTS.  INEEL MESONET OBS REPORTED 30 TO 40
MPH GUSTS FROM DISSIPATING THUNDERSTORMS IN SOUTHERN BUTTE COUNTY.
ALSO SEEING BLOWING DUST OFF TO THE WEST OF THE PIH OFFICE.  SO
UPDATED ZONES 17...20 AND 21 FOR THUNDERSTORMS AND WIND GUSTS TO 40
MPH.

BRONG

BYI 58/73 42/64 1222

.KSFX WSR-88D...OPERATIONAL...VCP 32.

.PIH...NONE.

PIH NB 055/072 041/062 034 04112

In the hours before

Local storm report, Jun 1, 8:05 PM MDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS
805 PM MDT FRI JUN 1 2001

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

0744 PM    POCATELLO                 ID   59 MPH WIND GUST
06/01/01   POWER                          DRY MICROBURST PASSED OVER THE
                                          AIRPORT.  REPORTED BY PIH ASOS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 8:02 PM MDT	Severe Thunderstorm Warning	PIH	Fremont, Jefferson	43 min
Jun 1, 8:25 PM MDT	Severe Thunderstorm Warning	PIH	Butte	35 min
Jun 1, 9:18 PM MDT	Severe Thunderstorm Warning	PIH	Bingham, Bonneville, Jefferson	42 min

Nearby

Severe Thunderstorm Warnings in Idaho, 2001 Every severe thunderstorm warning in 2001

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.