Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 222, NWS Denver/Boulder, CO

July 31, 1996Lincoln County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 31, 1996, 4:47 PM MDT for Lincoln County, Colorado. It was in force for 43 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
Jul 31, 1996, 4:47 PM MDT (22:47 UTC)
Expired
Jul 31, 1996, 5:30 PM MDT
In force
43 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 82 km from the middle of the area, began a volume at 22:51 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

Denver, CO (KDNR), launched 12:00Z, 10.8 hours before the alert went out and 101 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 12:00Z on 1996-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 12:00Z on 1996-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939Sfc1 km3 km6 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
66 J/kg
Mixed-layer CIN
-290 J/kg
Mixed-layer LCL
1655 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
61 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 31, 11:12 AM MDT, 5 hours 35 minutes before
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Special weather statement, Jul 31, 1:18 PM MDT, 3 hours 29 minutes before
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Special weather statement, Jul 31, 3:20 PM MDT, 1 hour 27 minutes before
COZ046-047-312130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
318 PM MDT WED JUL 31 1996

...LARGE HAIL IN HUGO...

AT 315PM HAIL TO JUST UNDER GOLFBALL HAIL WAS REPORTED IN HUGO.
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT IN EASTERN LINCOLN
COUNTY INCLUDING HUGO UNTIL 330 PM.  THE STORM WAS LOCATED JUST
EAST OF HUGO AND SLOWLY DRIFTING SOUTH.  RESIDENTS OF THE AREA SHOULD
TAKE COVER FROM THIS STORM.

RTG

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 8:16 PM MDTSevere Thunderstorm WarningBOULogan, Weld44 min
Jul 30, 8:58 PM MDTSevere Thunderstorm WarningBOUWeld47 min
Jul 30, 9:12 PM MDTTornado WarningBOUWeld48 min
Jul 30, 9:41 PM MDTTornado WarningBOUMorgan49 min
Jul 30, 10:15 PM MDTTornado WarningBOUMorgan45 min
Jul 30, 10:35 PM MDTSevere Thunderstorm WarningBOUWeld55 min
Jul 30, 10:50 PM MDTSevere Thunderstorm WarningBOUWashington40 min
Jul 30, 10:59 PM MDTSevere Thunderstorm WarningBOUAdams, Washington31 min
Jul 30, 11:05 PM MDTSevere Thunderstorm WarningBOUMorgan55 min
Jul 30, 11:28 PM MDTSevere Thunderstorm WarningBOUWashington47 min
Jul 30, 11:59 PM MDTTornado WarningBOUWashington31 min
Jul 31, 12:40 AM MDTFlash Flood WarningBOUWashington110 min
Jul 31, 12:55 AM MDTFlash Flood WarningBOUAdams50 min
Jul 31, 12:55 AM MDTSevere Thunderstorm WarningBOUAdams50 min
Jul 31, 1:09 AM MDTSevere Thunderstorm WarningBOULincoln36 min
Jul 31, 2:58 PM MDTSevere Thunderstorm WarningBOULincoln32 min
Jul 31, 3:26 PM MDTSevere Thunderstorm WarningBOULincoln44 min
Jul 31, 4:07 PM MDTSevere Thunderstorm WarningBOULincoln38 min
Jul 31, 5:28 PM MDTSevere Thunderstorm WarningBOUWeld47 min

Nearby

Severe Thunderstorm Warnings in Colorado, 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.