Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 224, NWS Jacksonville, FL

October 26, 1997Gilchrist County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Oct 26, 1997, 10:16 PM EST for Gilchrist County, Florida. It was in force for 44 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: Oct 26, 1997, 10:16 PM EST (03:16 UTC)
Expired: Oct 26, 1997, 11:00 PM EST
In force: 44 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Gilchrist County, FL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 26, 5:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 3.3 hours before the alert went out and 136 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: 2292 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 792 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 2.6
Supercell composite: 13.8

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.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 26, 6:30 PM EST, 3 hours 46 minutes earlier.

Area forecast discussion, Oct 26, 6:30 PM EST, 3 hours 46 minutes before

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In the hours before

Local storm report, Oct 26, 5:15 PM EST, 5 hours 1 minute before

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Local storm report, Oct 26, 5:15 PM EST, 5 hours 1 minute before

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Local storm report, Oct 26, 5:16 PM EST, 5 hours before

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Local storm report, Oct 26, 5:17 PM EST, 4 hours 59 minutes before

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Local storm report, Oct 26, 5:39 PM EST, 4 hours 37 minutes before

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Local storm report, Oct 26, 5:43 PM EST, 4 hours 33 minutes before

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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 26, 7:59 PM EST	Tornado Warning	JAX	Hamilton	61 min
Oct 26, 8:53 PM EST	Severe Thunderstorm Warning	JAX	Suwannee	52 min
Oct 26, 9:40 PM EST	Severe Thunderstorm Warning	JAX	Suwannee	50 min
Oct 26, 9:55 PM EST	Severe Thunderstorm Warning	JAX	Nassau	65 min
Oct 26, 10:13 PM EST	Severe Thunderstorm Warning	JAX	Duval	47 min
Oct 26, 8:26 PM EST	Tornado Warning	JAX	Echols	49 min

Nearby

Severe Thunderstorm Warnings in Florida, 1997 Every severe thunderstorm warning in 1997

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.