Alert archive / Colorado / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 35, NWS Denver/Boulder, CO

July 31, 1986Park County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 31, 1986, 9:54 PM MDT for Park County, Colorado. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 31, 1986, 9:54 PM MDT (03:54 UTC)
Expired
Jul 31, 1986, 11:00 PM MDT
In force
66 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Park County, CO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 3.9 hours before the alert went out and 229 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 1986-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 855 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 1986-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
855 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
2151 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 31, 6:19 PM MDTSevere Thunderstorm WarningBOUWashington, Yuma56 min
Jul 31, 8:49 PM MDTSevere Thunderstorm WarningBOULogan, Weld71 min
Jul 31, 10:01 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Washington59 min
Jul 31, 11:00 PM MDTSevere Thunderstorm WarningBOUWashington60 min
Aug 1, 7:06 AM MDTSevere Thunderstorm WarningBOUWashington69 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1986Every severe thunderstorm warning in 1986

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.