Alert archive / Iowa / Tornado Warnings in 1993

Tornado Warning 18, NWS Omaha, NE

July 24, 1993Fremont County, Mills County, Iowa

NWS Omaha, NE issued this tornado warning at Jul 24, 1993, 9:44 PM CDT for Fremont County, Mills County, Iowa. It was in force for 31 min.

The area

The counties it named.

The facts

Issued: Jul 24, 1993, 9:44 PM CDT (02:44 UTC)
Expired: Jul 24, 1993, 10:15 PM CDT
In force: 31 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Fremont County, IA, Mills County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.7 hours before the alert went out and 79 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: 2494 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 3.0
Supercell composite: 12.2

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 tornado 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, 8:37 PM CDT, 1 hour 7 minutes before

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Local storm report, Jul 24, 8:45 PM CDT, 59 minutes before

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Local storm report, Jul 24, 8:46 PM CDT, 58 minutes before

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Special weather statement, Jul 24, 9:10 PM CDT, 34 minutes before

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Special weather statement, Jul 24, 9:10 PM CDT, 34 minutes before

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Special weather statement, Jul 24, 9:30 PM CDT, 14 minutes before

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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 24, 7:36 PM CDT	Tornado Warning	OAX	Lancaster, Saline	54 min
Jul 24, 7:56 PM CDT	Tornado Warning	OAX	Gage	34 min
Jul 24, 8:01 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	29 min
Jul 24, 8:25 PM CDT	Flash Flood Warning	OAX	Saline	3 hr
Jul 24, 8:25 PM CDT	Severe Thunderstorm Warning	OAX	Sarpy	35 min
Jul 24, 8:35 PM CDT	Tornado Warning	OAX	Johnson, Pawnee	40 min
Jul 24, 8:40 PM CDT	Flash Flood Warning	OAX	Lancaster	3 hr
Jul 24, 8:48 PM CDT	Flash Flood Warning	OAX	Cass, Douglas, Sarpy, Saunders	2 hr
Jul 24, 8:54 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster, Seward	66 min
Jul 24, 8:56 PM CDT	Tornado Warning	OAX	Otoe	34 min
Jul 24, 9:07 PM CDT	Severe Thunderstorm Warning	OAX	Butler	38 min
Jul 24, 9:19 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee	41 min
Jul 24, 10:02 PM CDT	Tornado Warning	OAX	Nemaha	28 min
Jul 24, 10:14 PM CDT	Flash Flood Warning	OAX	Gage	3 hr
Jul 24, 11:28 PM CDT	Flash Flood Warning	OAX	Saline	3 hr
Jul 24, 9:13 PM CDT	Tornado Warning	OAX	Fremont, Mills	32 min
Jul 24, 9:40 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	35 min
Jul 24, 11:00 PM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	30 min

Nearby

Tornado Warnings in Iowa, 1993 Every tornado warning in 1993 Tornadoes 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.