Alert archive / Colorado / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 73, NWS Denver/Boulder, CO

July 10, 1993Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 10, 1993, 4:20 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 40 min.

The area

The counties it named.

The facts

Issued: Jul 10, 1993, 4:20 PM MDT (22:20 UTC)
Expired: Jul 10, 1993, 5:00 PM MDT
In force: 40 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Phillips County, CO, Sedgwick County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.3 hours before the alert went out and 121 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2952 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 67 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 10, 11:30 AM MDT, 4 hours 50 minutes before

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Special weather statement, Jul 10, 11:34 AM MDT, 4 hours 46 minutes before

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Special weather statement, Jul 10, 3:55 PM MDT, 25 minutes before

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Special weather statement, Jul 10, 4:00 PM MDT, 20 minutes before

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Special weather statement, Jul 10, 4:06 PM MDT, 14 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 9, 6:54 PM MDT	Severe Thunderstorm Warning	BOU	Adams	36 min
Jul 9, 7:46 PM MDT	Tornado Warning	BOU	Adams, Washington	29 min
Jul 9, 8:10 PM MDT	Tornado Warning	BOU	Washington	35 min
Jul 9, 8:40 PM MDT	Tornado Warning	BOU	Lincoln, Washington	35 min
Jul 9, 9:15 PM MDT	Tornado Warning	BOU	Lincoln, Washington	30 min
Jul 10, 4:57 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Sedgwick	33 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1993 Every 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.