Alert archive / Georgia / Tornado Watches in 1997

Tornado Watch 787

November 1, 1997Nassau County, Florida; 27 counties in Georgia; Beaufort County, Jasper County, South Carolina

The Storm Prediction Center issued this tornado watch at Nov 1, 1997, 7:30 PM EST for Nassau County, Florida; 27 counties in Georgia; Beaufort County, Jasper County, South Carolina. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Nov 1, 1997, 7:30 PM EST (00:30 UTC)
Expired
Nov 2, 1997, 12:00 AM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 30 counties

Nassau County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Echols County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glynn County, GA, Jeff Davis County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Montgomery County, GA, Pierce County, GA, Tattnall County, GA, Toombs County, GA, Treutlen County, GA, Ware County, GA, Wayne County, GA, Beaufort County, SC, Jasper County, SC

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Nov 1, 7:33 PM ESTSevere Thunderstorm WarningFFCToombs27 min
Nov 1, 7:44 PM ESTSevere Thunderstorm WarningFFCEmanuel31 min
Nov 1, 8:06 PM ESTSevere Thunderstorm WarningCHSTattnall39 min
Nov 1, 9:18 PM ESTSevere Thunderstorm WarningCHSEffingham, Screven27 min
Nov 1, 10:37 PM ESTSevere Thunderstorm WarningJAXClinch63 min
Nov 1, 11:34 PM ESTSevere Thunderstorm WarningJAXCharlton61 min
Nov 1, 11:51 PM ESTTornado WarningJAXCharlton64 min

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 0.5 hours before the alert went out and 110 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, Jacksonville, FL at 00:00Z on 1997-11-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1109 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 1997-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 square meters per square second.1939587897117Sfc1 km3 km6 km9 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
1109 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1077 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.1

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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 1, 10:00 PM ESTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 21 more6 hr
Nov 2, 7:30 AM ESTTornado WatchSPCCharlotte, Collier, DeSoto, Glades, Hendry, Highlands and 6 more5 hr

Nearby

Tornado Watches in Georgia, 1997Tornado Watches in South Carolina, 1997Tornado Watches in Florida, 1997Every tornado watch 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.