Alert archive / Utah / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 21, NWS Salt Lake City, UT

June 30, 2000Juab County, Utah County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 30, 2000, 5:34 PM MDT for Juab County, Utah County, Utah. It was in force for 56 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 30, 2000, 5:34 PM MDT (23:34 UTC)
Expired
Jun 30, 2000, 6:30 PM MDT
In force
56 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Juab County, UT, Utah County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 11.6 hours before the alert went out and 49 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 2000-06-30Temperature 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 2000-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
3441 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
89 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 KSLC 302338 COR
SVRSLC
UTC023-035-049-010030-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
534 PM MDT FRI JUN 30 2000

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES

IN UTAH
     SOUTHERN SALT LAKE...SOUTHEASTERN TOOELE...UTAH 

INCLUDING THE FOLLOWING LOCATIONS
     WEST JORDAN...VERNON...TOOELE...SPRINGVILLE...SPANISH FORK...
     SANTAQUIN...SANDY...SALEM...RIVERTON...PROVO...PLEASANT GROVE...
     PAYSON...OREM...MAPLETON...LINDON...LEHI...HERRIMAN...DRAPER...
     COTTONWOOD HEIGHTS...BLUFFDALE...AMERICAN FORK AND ALPINE

AT 515 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM WEST OF UTAH LAKE MOVING NORTHEAST TOWARDS THE 
WASATCH FRONT.

STRONG GUSTY WINDS TO 60 MPH AND HAIL ARE FORECAST WITH THIS STORM.

REPORT SE7VERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SALT LAKE CITY.

LAT...LON 4061 11176 3995 11124 3995 11254 4059 11237

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 2:33 PM MDTFlash Flood WarningSLCGarfield, Kane117 min
Jun 30, 5:16 PM MDTSevere Thunderstorm WarningSLCDavis, Salt Lake44 min
Jun 30, 5:34 PM MDTSevere Thunderstorm WarningSLCSalt Lake56 min

Nearby

Severe Thunderstorm Warnings in Utah, 2000Every severe thunderstorm warning in 2000

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.