Alert archive / Georgia / Tornado Warnings in 2007

Tornado Warning 26, NWS Charleston, SC

September 21, 2007McIntosh County, Georgia

NWS Charleston, SC issued this tornado warning at Sep 21, 2007, 7:09 AM EDT for McIntosh County, Georgia. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 21, 2007, 7:09 AM EDT (11:09 UTC)
Expired
Sep 21, 2007, 7:45 AM EDT
In force
36 min
Issued by
NWS Charleston, SC
Area
Counties, with a storm outline in the text

County McIntosh County, GA

The radar

The Jacksonville radar (KJAX), 121 km from the middle of the area, began a volume at 11:09 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.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 11.2 hours before the alert went out and 120 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 2007-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2537 joules per kilogram.LCLEL10008507005003002001001 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, Jacksonville, FL at 00:00Z on 2007-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 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
2537 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KCHS 211109
TORCHS
GAC191-211145-
/O.NEW.KCHS.TO.W.0026.070921T1109Z-070921T1145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
709 AM EDT FRI SEP 21 2007

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR...
  MCINTOSH COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 745 AM EDT

* AT 708 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR VALONA...OR
  ABOUT 9 MILES NORTHEAST OF DARIEN...MOVING NORTH AT 15 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
  VALONA...MERIDIAN...
  CRESCENT...
  PINE HARBOR...EULONIA...
  SHELLMAN BLUFF...
  SOUTH NEWPORT...

A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES. MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST
FLOOR. STAY AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024.

LAT...LON 3143 8144 3163 8154 3164 8153 3165 8153
      3163 8125 3144 8127
TIME...MOT...LOC 1109Z 167DEG 16KT 3149 8137

$$
2 follow-up statements
000 
WWUS52 KCHS 211122
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
722 AM EDT FRI SEP 21 2007

GAC191-211145-
/O.CON.KCHS.TO.W.0026.000000T0000Z-070921T1145Z/
MCINTOSH GA-
722 AM EDT FRI SEP 21 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 AM EDT FOR MCINTOSH
COUNTY...

AT 721 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PINE HARBOR...OR
ABOUT 13 MILES NORTHEAST OF DARIEN...MOVING NORTH AT 15 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
CARNIGAN...CRESCENT...EULONIA...MERIDIAN...PINE HARBOR...SHELLMAN
BLUFF...SOUTH NEWPORT AND VALONA.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

LAT...LON 3143 8144 3165 8145 3164 8140 3163 8125
      3146 8127 3145 8127 3144 8128
TIME...MOT...LOC 1122Z 188DEG 16KT 3155 8134

$$
000 
WWUS52 KCHS 211144
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
742 AM EDT FRI SEP 21 2007

GAC191-211152-
/O.EXP.KCHS.TO.W.0026.000000T0000Z-070921T1145Z/
MCINTOSH GA-
742 AM EDT FRI SEP 21 2007

...THE TORNADO WARNING FOR MCINTOSH COUNTY WILL EXPIRE AT 745 AM
EDT...

AT 738 AM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH
PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED AREA...THUS THE
TORNADO WARNING BEEN ALLOWED TO EXPIRE.

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS...TV OR YOUR LOCAL NEW 
SOURCE FOR THE LATEST WEATHER INFORMATION. 

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

LAT...LON 3143 8144 3165 8145 3164 8140 3163 8125
      3146 8127 3145 8127 3144 8128
TIME...MOT...LOC 1142Z 188DEG 16KT 3164 8133

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 5:49 AM EDTSevere Thunderstorm WarningCHSMcIntosh56 min
Sep 21, 6:30 AM EDTTornado WarningCHSMcIntosh30 min
Sep 21, 7:22 AM EDTAreal Flood AdvisoryCHSMcIntosh113 min
Sep 21, 7:28 AM EDTSpecial Marine WarningCHS62 min
Sep 21, 7:35 AM EDTSevere Thunderstorm WarningCHSLiberty40 min
Sep 21, 7:52 AM EDTAreal Flood AdvisoryCHSLiberty113 min
Sep 21, 8:22 AM EDTSpecial Marine WarningCHS53 min
Sep 21, 8:58 AM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty47 min
Sep 21, 9:04 AM EDTAreal Flood AdvisoryCHSLiberty116 min
Sep 21, 9:13 AM EDTSpecial Marine WarningCHS62 min
Sep 21, 9:15 AM EDTAreal Flood AdvisoryCHSBryan, Chatham2 hr
Sep 21, 9:34 AM EDTFlash Flood WarningCHSChatham116 min
Sep 21, 9:39 AM EDTSevere Thunderstorm WarningCHSChatham44 min
Sep 21, 10:10 AM EDTSpecial Marine WarningCHS65 min
Sep 21, 11:26 AM EDTFlash Flood WarningCHSChatham2 hr

Nearby

Tornado Warnings in Georgia, 2007Every tornado warning in 2007Tornadoes in 2007

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; radar from the NEXRAD Level II archive.