Alert archive / Georgia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 8, NWS Charleston, SC

March 4, 2001Effingham County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Mar 4, 2001, 1:00 AM EST for Effingham County, Georgia. It was in force for 45 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 4, 2001, 1:00 AM EST (06:00 UTC)
Expired
Mar 4, 2001, 1:45 AM EST
In force
45 min
Issued by
NWS Charleston, SC
Area
Whole counties

County Effingham County, GA

The radar

The Charleston,SC radar (KCLX), 43 km from the middle of the area, began a volume at 06:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 4, 1:10 AM ESTThunderstorm Wind 50 EKildare, GAFew trees down.
Mar 4, 1:30 AM ESTThunderstorm Wind 50 ESpringfield, GASeveral trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 3, 9:00 PM ESTTornado WatchSPC5 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 6.0 hours before the alert went out and 139 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, Charleston AFB, SC at 00:00Z on 2001-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2001-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
911 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KCHS 040602
SVRCHS
GAC103-040645-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
100 AM EST SUN MAR 4 2001

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  EFFINGHAM COUNTY IN SOUTHEAST GEORGIA.

* UNTIL 145 AM EST.

* AT 100 AM EST...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM
  MILBURY SC TO DENMARK GA...MOVING EAST AT 60 MPH.

WIND IN EXCESS 60 MPH ARE EXPECTED IN THE WARNED AREA.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

$$

LAT...LON 3228 8142 3222 8141 3215 8138 <3228 8120
          3253 8127 3255 8132 3257 8139 3247 8152

WOODWORTH
NNNN

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 3, 11:47 PM ESTSevere Thunderstorm WarningCHSBulloch, Candler, Evans, Tattnall58 min
Mar 3, 11:47 PM ESTSevere Thunderstorm WarningCHSJenkins, Screven58 min
Mar 4, 12:08 AM ESTSevere Thunderstorm WarningCHSBryan, Liberty, Long52 min
Mar 4, 12:08 AM ESTSevere Thunderstorm WarningCHSChatham, Effingham52 min
Mar 4, 12:45 AM ESTSevere Thunderstorm WarningCHSBulloch, Evans, Screven30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2001Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.