Alert archive / Utah / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 13, NWS Grand Junction, CO

June 21, 1996Grand County, Utah

NWS Grand Junction, CO issued this severe thunderstorm warning at Jun 21, 1996, 3:55 PM MDT for Grand County, Utah. 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 counties it named.

The facts

Issued
Jun 21, 1996, 3:55 PM MDT (21:55 UTC)
Expired
Jun 21, 1996, 4:30 PM MDT
In force
35 min
Issued by
NWS Grand Junction, CO
Area
Whole counties

County Grand County, UT

The radar

The Grand Junction radar (KGJX), 118 km from the middle of the area, began a volume at 21:54 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

Grand Junction, CO (KGJT), launched 12:00Z, 9.9 hours before the alert went out and 94 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, Grand Junction, CO at 12:00Z on 1996-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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, Grand Junction, CO at 12:00Z on 1996-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-289 J/kg
Mixed-layer LCL
1051 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

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 Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 6:07 PM MDTSevere Thunderstorm WarningGJTMontrose48 min
Jun 20, 6:29 PM MDTSevere Thunderstorm WarningGJTDelta, Montrose41 min
Jun 21, 6:05 AM MDTSevere Thunderstorm WarningGJTMesa55 min
Jun 21, 1:43 PM MDTSevere Thunderstorm WarningGJTRio Blanco47 min
Jun 21, 3:11 PM MDTSevere Thunderstorm WarningGJTRoutt39 min
Jun 21, 4:30 PM MDTSevere Thunderstorm WarningGJTMoffat30 min
Jun 21, 4:59 PM MDTSevere Thunderstorm WarningGJTMoffat31 min
Jun 20, 7:37 PM MDTSevere Thunderstorm WarningGJTUintah38 min
Jun 20, 8:25 PM MDTSevere Thunderstorm WarningGJTUintah20 min
Jun 21, 12:46 PM MDTSevere Thunderstorm WarningGJTGrand29 min
Jun 21, 1:03 PM MDTSevere Thunderstorm WarningGJTUintah12 min
Jun 21, 1:05 PM MDTSevere Thunderstorm WarningGJTUintah10 min
Jun 21, 2:56 PM MDTSevere Thunderstorm WarningGJTGrand34 min
Jun 21, 4:01 PM MDTSevere Thunderstorm WarningGJTUintah29 min

Nearby

Severe Thunderstorm Warnings in Utah, 1996Every severe thunderstorm warning in 1996

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.