Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 172, NWS Denver/Boulder, CO

July 24, 1996Adams County, Arapahoe County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 24, 1996, 11:46 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 44 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 24, 1996, 11:46 PM MDT (05:46 UTC)
Expired: Jul 25, 1996, 12:30 AM MDT
In force: 44 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Adams County, CO, Arapahoe County, CO

The radar

The Denver radar (KFTG), 18 km from the middle of the area, began a volume at 05:51 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.

What was reported inside it

Time	Report	Where	Remark
Jul 24, 11:55 PM MDT	Hail 0.75	Bennett, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 5.8 hours before the alert went out and 95 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1208 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1690 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 6.5

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 24, 8:18 PM MDT, 3 hours 28 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 9:48 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas	42 min
Jul 24, 11:12 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	33 min
Jul 25, 4:17 PM MDT	Severe Thunderstorm Warning	BOU	Washington	73 min
Jul 25, 4:19 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	71 min
Jul 25, 4:26 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	64 min
Jul 25, 4:31 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	59 min
Jul 25, 4:50 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln, Washington	40 min
Jul 25, 5:30 PM MDT	Severe Thunderstorm Warning	BOU	Washington	45 min
Jul 25, 5:37 PM MDT	Severe Thunderstorm Warning	BOU	Sedgwick	38 min
Jul 25, 5:54 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Sedgwick	21 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.