Alert archive / Colorado / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 67, NWS Denver/Boulder, CO

July 7, 1993Phillips County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 7, 1993, 9:40 PM MDT for Phillips County, Colorado. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1993, 9:40 PM MDT (03:40 UTC)
Expired
Jul 7, 1993, 10:15 PM MDT
In force
35 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Phillips County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 3.7 hours before the alert went out and 109 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, Denver, CO at 00:00Z on 1993-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 334 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, Denver, CO at 00:00Z on 1993-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939587897Sfc1 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
334 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
3542 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 8:48 PM MDTSevere Thunderstorm WarningBOULogan27 min
Jul 7, 9:20 PM MDTSevere Thunderstorm WarningBOULogan33 min
Jul 8, 1:24 PM MDTSevere Thunderstorm WarningBOUBoulder, Weld36 min
Jul 8, 2:25 PM MDTSevere Thunderstorm WarningBOUWeld35 min
Jul 8, 2:45 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan30 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1993Every severe thunderstorm warning in 1993

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.