Alert archive / Georgia / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Jacksonville, FL

February 10, 1990Liberty County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 10, 1990, 9:02 AM EST for Liberty County, Georgia. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1990, 9:02 AM EST (14:02 UTC)
Expired
Feb 10, 1990, 9:45 AM EST
In force
43 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

County Liberty County, GA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jacksonville, FL (KAYS), launched 12:00Z, 2.0 hours before the alert went out and 147 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 12:00Z on 1990-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 98 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 1990-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 257 square meters per square second.1939587897Sfc1 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
98 J/kg
Mixed-layer CIN
-206 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
257 m²/s²
0-3 km storm-relative helicity
290 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 8:13 AM ESTSevere Thunderstorm WarningJAXBulloch62 min
Feb 10, 8:43 AM ESTSevere Thunderstorm WarningJAXCandler, Tattnall32 min
Feb 10, 9:02 AM ESTSevere Thunderstorm WarningJAXBryan, Bulloch43 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1990Every severe thunderstorm warning in 1990

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.