Alert archive / Utah / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 64, NWS Salt Lake City, UT

August 10, 1997Box Elder County, Tooele County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 10, 1997, 7:10 PM MDT for Box Elder County, Tooele County, Utah. It was in force for 60 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
Aug 10, 1997, 7:10 PM MDT (01:10 UTC)
Expired
Aug 10, 1997, 8:10 PM MDT
In force
60 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Box Elder County, UT, Tooele County, UT

The radar

The Salt Lake City radar (KMTX), 63 km from the middle of the area, began a volume at 01:14 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

Elko, NV (KLKN), launched 00:00Z, 1.2 hours before the alert went out and 93 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, Elko, NV at 00:00Z on 1997-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 00:00Z on 1997-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
13 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
2798 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 6:15 PM MDTSevere Thunderstorm WarningSLCBox Elder, Tooele55 min
Aug 10, 7:10 PM MDTSevere Thunderstorm WarningSLCBox Elder, Tooele
Aug 10, 7:29 PM MDTSevere Thunderstorm WarningSLCBox Elder61 min
Aug 10, 8:15 PM MDTSevere Thunderstorm WarningSLCBox Elder, Davis, Weber75 min
Aug 10, 9:33 PM MDTSevere Thunderstorm WarningSLCDavis, Morgan, Summit, Weber47 min
Aug 10, 10:03 PM MDTSevere Thunderstorm WarningSLCSalt Lake, Utah42 min
Aug 11, 3:34 PM MDTSevere Thunderstorm WarningSLCBox Elder46 min
Aug 11, 3:43 PM MDTFlash Flood WarningSLCGarfield3 hr
Aug 11, 5:59 PM MDTFlash Flood WarningSLCGarfield46 min
Aug 11, 5:59 PM MDTSevere Thunderstorm WarningSLCGarfield46 min

Nearby

Severe Thunderstorm Warnings in Utah, 1997Every severe thunderstorm warning in 1997

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.