Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 31, NWS Charleston, SC

April 13, 20094 counties in Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Apr 13, 2009, 4:42 PM EDT for 4 counties in Georgia. It was in force for 63 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
Apr 13, 2009, 4:42 PM EDT (20:42 UTC)
Expired
Apr 13, 2009, 5:45 PM EDT
In force
63 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Bryan County, GA, Chatham County, GA, Liberty County, GA, McIntosh County, GA

The radar

The Charleston,SC radar (KCLX), 97 km from the middle of the area, began a volume at 20:44 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 watch it was issued in

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

IssuedProductOfficeLasted
Apr 13, 12:32 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 8.7 hours before the alert went out and 151 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 2009-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2009-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
-232 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 13, 2:01 PM EDT, 2 hours 41 minutes earlier.

Area forecast discussion, Apr 13, 2:01 PM EDT, 2 hours 41 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
201 PM EDT MON APR 13 2009

.SYNOPSIS...
A WARM FRONT WILL APPROACH FROM THE SOUTH AND LIFT NORTH THROUGH
THE REGION LATE TODAY. A COLD FRONT WILL PUSH OFFSHORE TUESDAY
EVENING. A BACK DOOR COLD FRONT WILL DROP ACROSS THE AREA
WEDNESDAY NIGHT...WITH HIGH PRESSURE THEN BUILDING INTO THE
REGION THURSDAY THROUGH THE UPCOMING WEEKEND.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
QUICK UPDATE HAS BEEN ISSUED FOR TORNADO WATCH 150 IN EFFECT UNTIL
7 PM THIS EVENING FOR PORTIONS OF SOUTHEAST GEORGIA AND THE
ADJACENT COASTAL WATERS. PREVIOUS DISCUSSION FOLLOWS.

CURRENTLY AT THE SURFACE...HIGH PRESSURE IS CENTERED OVER THE
CENTRAL MID-ATLANTIC STATES...WITH RIDGING EXTENDING SOUTHWESTWARD
THROUGH THE FORECAST AREA AND INTO CENTRAL GEORGIA. MEANWHILE...A
WARM FRONT EXTENDS FROM THE TAIL END OF HIGH PRESSURE WEDGE OVER
SOUTHWESTERN GEORGIA...EAST-NORTHEAST TO NEAR THE ALTAMAHA RIVER.
VISIBLE SATELLITE IMAGERY GENERALLY CLOUDY SKIES IN PLACE ACROSS THE
FORECAST AREA...WITH SOME HOLES IN THE OVERCAST NOTED OVER
SOUTHEAST GEORGIA. MAIN NEAR TERM CONCERN FOR THIS AFTERNOON
REVOLVES AROUND SEVERE WEATHER POTENTIAL.

THIS AFTERNOON...
HIGH PRESSURE WEDGE WILL CONTINUE TO SLOWLY LOSE ITS GRIP ON THE
AREA AS THE WARM FRONT LIFTS NORTHWARD THROUGH SOUTHEAST GEORGIA AND
COASTAL SOUTH CAROLINA ZONES. THE HIGH PRESSURE WEDGE WILL LIKELY
HOLD THROUGH THE AFTERNOON HOURS ACROSS FAR NORTHWEST ZONES.
SOUTHEAST GEORGIA ZONES MAY BE ABLE TO SEE A FEW BREAKS IN THE
OVERCAST...BUT DON/T ANTICIPATE TOO MUCH SUNSHINE GIVEN AMOUNT OF
MID/HIGH CONVECTIVE DEBRIS CLOUD UPSTREAM. THIS SHOULD LIMIT THE
AMOUNT OF DESTABILIZATION THAT WILL BE ABLE TO BE SEEN ACROSS THE
AREA. HAVE TWEAKED MAX TEMPS UP SLIGHTLY ACROSS FAR SOUTHEAST
ZONES...WHERE HIGHS SHOULD TOP OUT IN THE MID AND PERHAPS UPPER 70S.
HIGHS IN THE LOW 70S SHOULD BE SEEN ACROSS MUCH OF COASTAL SOUTH
CAROLINA ZONES...WITH HIGHS LIKELY TOPPING OUT IN THE MID TO UPPER
60S ACROSS NORTHWEST ZONES. BEST DYNAMIC FORCING AND DEEPEST
MOISTURE LOOK TO HOLD OFF UNTIL VERY LATE THIS AFTERNOON...SO HAVE
TWEAKED POPS DOWN ALONG THE COAST. ACROSS FAR WESTERN ZONES HAVE
BUMPED UP POPS INTO THE CATEGORICAL RANGE AS SHOWERS/THUNDERSTORMS
SHOULD BE ABLE TO MAKE IT INTO THESE LOCALS BY LATE IN THE DAY.

AS FOR SEVERE WEATHER POTENTIAL...AM BEGINNING TO THINK WE MAY HAVE
A BIT HIGHER CHANCE GIVEN THE QUICK PROGRESSION OF THE WARM FRONT
NORTHWARD THIS MORNING. THE WARM FRONT WILL LIKELY CONTINUE TO LIFT
STEADILY NORTHWARD THIS AFTERNOON WITH SOME HOLES IN THE OVERCAST
ACROSS SOUTHEAST GEORGIA AND STRONG SOUTHERLY LOW LEVEL JET
DEVELOPING BY LATE AFTERNOON. WITH SHORTWAVE ENERGY LIFTING TOWARD
THE AREA ALONG WITH ENTRANCE REGION FORCING FROM A 120+ KNOT H25 JET
BEGINNING TO INFLUENCE THE AREA BY LATE IN THE DAY...SHOULD SEE
NUMEROUS SHOWERS/THUNDERSTORMS BEGINNING TO AFFECT SOUTHWESTERN
ZONES BY MID TO LATE AFTERNOON. THE ONE LIMITING FACTOR APPEARS TO
BE INSTABILITY...WITH ADJUSTED MODEL SOUNDINGS ONLY INDICATING
AROUND 400-800 J/KG OF CAPE AND LI/S OF -2 TO -3 DEVELOPING OVER
SOUTHEAST GEORGIA BY LATE AFTERNOON. NEVERTHELESS...WITH STRONG
DYNAMIC FORCING SPREADING INTO THE AREA AND SOME WEAK
INSTABILITY...SEVERE WEATHER WILL BE POSSIBLE. BEST CHANCES WILL BE
ACROSS SOUTHWESTERN GEORGIA ZONES THIS AFTERNOON...WHERE SURFACE
BASED INSTABILITY WILL BE HIGHEST. 0-1 KM HELICITY VALUES INCREASE
TO BETWEEN 250 AND 350 M2/S2 ACROSS SOUTHEAST GEORGIA BY LATE
AFTERNOON...WITH EHI VALUES APPROACHING 1 ACROSS TATTNALL/LONG
COUNTIES. THAT SAID...BELIEVE MAIN HAZARDS WILL BE DAMAGING WINDS
AND ISOLATED TORNADOES...PRIMARILY ACROSS SOUTHWESTERN ZONES THROUGH
THE AFTERNOON HOURS.

LAKE WINDS...SURFACE WEDGING WILL LIKELY KEEP WINDS FROM REACHING
LAKE WIND ADVISORY LEVELS UNTIL LATE AFTERNOON...BUT GIVEN STRONG
LOW LEVEL JET DEVELOPING...STILL FEEL THAT IT IS POSSIBLE BY LATE
IN THE DAY.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM TUESDAY/...
IF THE WARM FRONT HAS NOT ALREADY LIFTED THROUGH THE FORECAST
AREA BY LATE AFTERNOON...IT SHOULD DO SO QUICKLY THIS EVENING.
LOOKS LIKE A WEAK WAVE OF LOW PRESSURE WILL DEVELOP ALONG THE
WARM FRONT AND MOVE THROUGH CENTRAL SC AND INTO CENTRAL NC
AFTER MIDNIGHT. DEWPOINTS ARE EXPECTED TO RISE INTO THE MIDDLE
60S IN THE EVENING...AND WITH SHORTWAVE ENERGY PUSHING IN FROM
THE SOUTHWEST AND ENTRANCE REGION FORCING FROM A 120+ KT H25 JET
OVERSPREADING THE AREA...WE SHOULD SEE WIDESPREAD SHOWER AND
THUNDERSTORM COVERAGE ACROSS THE AREA. IMPRESSIVE DYNAMIC FORCING
AND SOME MARGINALLY FAVORABLE THERMODYNAMIC PROFILES SUGGEST THE
POTENTIAL FOR MORE STRONG TO SEVERE STORMS. EXPECT RATHER MILD
OVERNIGHT LOWS...GENERALLY IN THE MIDDLE 60S.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
A CLOSED UPPER LEVEL LOW WILL DRIFT INTO THE OHIO VALLEY ON
TUESDAY...WITH A NEGATIVELY TILTED TROUGH EXTENDING ACROSS THE
SOUTHEAST STATES. A POTENT SHORT WAVE WITHIN THE BASE OF THE UPPER
LEVEL TROUGH WILL ALLOW A SURFACE WAVE OF LOW PRESSURE TO INTENSIFY
ALONG A COLD FRONT ON THE LEE SIDE OF THE SOUTHERN APPALACHIANS
TUESDAY MORNING. THE LOW WILL LIFT NORTHEAST TUESDAY AFTERNOON INTO
TUESDAY EVENING...DRAGGING THE COLD FRONT TOWARD THE COAST.

A MESOSCALE CONVECTIVE SYSTEM /MCS/...POSSIBLY IN A WEAKENING
PHASE...SHOULD BE ONGOING AT THE START OF TUESDAY MORNING ACROSS
NORTH COASTAL GEORGIA...WITH SCATTERED SHOWERS AND THUNDERSTORMS
POSSIBLE ELSEWHERE. THE MCS WILL EVENTUALLY DROP SOUTH OF THE AREA
LATER TUESDAY MORNING...POSSIBLY RESULTING IN A BREAK IN THE
PRECIPITATION. SCATTERED SHOWERS AND THUNDERSTORMS COULD REDEVELOP
TUESDAY AFTERNOON...ESPECIALLY ACROSS SOUTHEAST SOUTH CAROLINA...AS
A STRONG SOUTHWEST FLOW CONTINUES TO TRANSPORT LOW LEVEL MOISTURE
INTO THE AREA AHEAD OF AN APPROACHING COLD FRONT. LIFT WILL BE
ENHANCED BY THE FRONT ENTRANCE REGION OF THE UPPER LEVEL JET AND THE
PASSING OF A STRONG SHORT WAVE ALOFT. SOME OF THE THUNDERSTORMS
COULD BECOME STRONG IF NOT SEVERE...AS SOME DRYING IN THE MID AND
UPPER LEVELS OF THE ATMOSPHERE COULD ALLOW FOR PARTIAL CLEARING.
THIS WILL ALLOW TEMPERATURES TO REACH WELL INTO THE UPPER 70S FOR
HIGHS TUESDAY AFTERNOON. THIS WARM/MOIST AIRMASS WILL ALLOW FOR
CONSIDERABLE DESTABILIZATION TO TAKE PLACE...WITH THE MODEL
SOUNDINGS FORECASTING THE FOLLOWING SEVERE WEATHER PARAMETERS...
LIFTED INDEX VALUES OF -3 TO -5...CAPE VALUES OF 1500-2000 J/KG...
TOTAL TOTALS AROUND 46 AND A K-INDEX AROUND 25. HOWEVER...IT SHOULD
BE NOTED THAT MID LEVEL LAPSE RATES OF 4-5 C/KM DO NOT APPEAR ALL
THAT IMPRESSIVE. A WET BULB ZERO HEIGHT OF 9000 FT AND 500 MB
TEMPERATURES OF -12C SHOW THAT HAIL MAY BE THE GREATEST THREAT WITH
THE AFTERNOON CONVECTION...ALTHOUGH DAMAGING WINDS ARE ALSO
POSSIBLE. WHILE SPEED SHEAR IS IMPRESSIVE...DIRECTIONAL SHEAR IS
LIMITED THUS DECREASING THE TORNADO POTENTIAL OUTSIDE OF ANY
INTERACTION WITH THE SEA BREEZE. WILL CONTINUE TO HIGHLIGHT THE
SEVERE POTENTIAL IN THE HAZARDOUS WEATHER OUTLOOK.

A DOWNSLOPE FLOW WILL DEVELOP IN WAKE OF THE COLD FRONT LATER
TUESDAY NIGHT INTO WEDNESDAY. THIS WILL ALLOW FOR CONSIDERABLE
CLEARING. ALTHOUGH WEAK COLD AIR ADVECTION SHOULD TAKE PLACE...ITS
AFFECTS SHOULD BE COUNTERED BY THE WARMING/SUBSIDING AIRMASS WHICH
SHOULD ALLOW FOR HIGHS IN THE MID 70S ON WEDNESDAY. A BACK DOOR COLD
FRONT WILL DROP ACROSS THE AREA LATE WEDNESDAY NIGHT. WHILE NO
PRECIPITATION IS ANTICIPATED GIVEN THE LACK OF DEEP LAYERED
MOISTURE...THERE COULD BE AN INCREASE IN MID LEVEL CLOUD COVER WITH
ITS PASSAGE.

HIGH PRESSURE AT THE SURFACE WILL BUILD DOWN EAST OF THE MISSISSIPPI
VALLEY THURSDAY THROUGH FRIDAY...RESULTING IN DRY CONDITIONS AND
SLIGHTLY BELOW NORMAL TEMPERATURES ON A NORTHERLY FLOW. THE HIGH
SHOULD SHIFT OVER THE REGION ON SATURDAY...KEEPING DRY CONDITIONS IN
PLACE BUT ALLOW TEMPERATURES TO MODERATE CLOSE TO NORMAL. THE HIGH
SHOULD SHIFT OFFSHORE LATE IN THE WEEKEND...ALLOWING A STORM SYSTEM
TO APPROACH FROM THE WEST. GIVEN SOME MEDIUM RANGE GUIDANCE TIMING
DISAGREEMENT LATE IN THE FORECAST PERIOD...HAVE CAPPED ANY POTENTIAL
FOR SHOWERS/THUNDERSTORMS TO A SLIGHT CHANCE ON SUNDAY.

LAKE WINDS...STRONG LOW LEVEL WINDS AHEAD OF AN APPROACHING COLD
FRONT SHOULD ALLOW WINDS OVER LAKE MOULTRIE TO MAINTAIN LAKE WIND
ADVISORY CRITERIA THROUGH AT LEAST TUESDAY MORNING.

&&

.AVIATION /18Z MONDAY THROUGH SATURDAY/...
EXPECT VFR CONDITIONS TO DETERIORATE THIS AFTERNOON FOR KCHS AND
KSAV AS SHOWERS AND THUNDERSTORMS APPROACH THE AREA. HAVE
MAINTAINED PREVAILING MVFR CEILINGS BY LATE AFTERNOON/EARLY
EVENING FOR BOTH SITES. LOOKS LIKE BEST CHANCES FOR THUNDERSTORMS
WILL OCCUR THIS EVENING...AND HAVE PREVAILING TSRA AT BOTH SITES.
HAVE ALSO INCLUDED TEMPO GROUPS FOR TSRA MID TO LATE AFTERNOON TO
ACCOUNT FOR ONGOING THUNDERSTORM ACTIVITY UPSTREAM...AND WILL
AMEND AS NECESSARY.

ONCE EVENING THUNDERSTORMS PUSH THROUGH THE AREA...SHOULD SEE RAIN
CONTINUE INTO THE EARLY MORNING HOURS BEFORE ENDING PRIOR TO
DAYBREAK. STABLE LAYER MOVING IN BEHIND THE CONVECTION WILL
LIKELY RESULT IN LOW LEVEL WIND SHEAR AND IFR CIGS AT BOTH
TERMINALS...AND HAVE INCLUDED THIS THROUGH ROUGHLY DAYBREAK
TUESDAY. SHOULD SEE CONDITIONS QUICKLY IMPROVE TO VFR LEVELS
TUESDAY MORNING AS WINDS SHIFT MORE SOUTHWEST ALLOWING THE
BOUNDARY LAYER TO DRY OUT A BIT.

EXTENDED AVIATION OUTLOOK...MVFR OR LOWER CONDITIONS POSSIBLE
THROUGH TUESDAY AFTERNOON WITHIN SHOWERS AND THUNDERSTORMS. VFR
CONDITIONS WILL RETURN TUESDAY NIGHT AND CONTINUE THROUGH FRIDAY.

&&

.MARINE...
TODAY...DETERIORATING MARINE CONDS TODAY AS A STRONG LOW-LEVEL JET
MOVES OVER THE AREA. SCA/S ARE UP FOR ALL WATERS.

TONIGHT...VERY POOR MARINE CONDS CONTINUE TONIGHT AS THE STRONG
LOW-LEVEL JET CONTINUES AHEAD OF AN APPROACHING COLD FRONT. HAVE
ALSO RAISED A GALE WATCH FOR THE WARMER GA WATERS BEYOND 20 NM
FROM SHORE AS THERE IS THE POTENTIAL OF AT LEAST 35 KT GUSTS.

TUESDAY THROUGH FRIDAY...A STRONG LOW LEVEL JET WILL KEEP
WINDS/SEAS ELEVATED AHEAD OF AN APPROACHING COLD FRONT ON
TUESDAY...WITH AT LEAST SMALL CRAFT ADVISORY CONDITIONS
ANTICIPATED FOR ALL WATERS...INCLUDING CHARLESTON HARBOR. THE
FRONT WILL SHIFT OFFSHORE TUESDAY EVENING...WITH THE DEVELOPING
OFFSHORE FLOW ALLOWING WINDS AND SEAS TO SUBSIDE THROUGH
WEDNESDAY. A BACK DOOR COLD FRONT WILL DROP ACROSS THE WATERS LATE
WEDNESDAY NIGHT...WITH A NORTHERLY SURGE POSSIBLY RESULTING IN
SMALL CRAFT ADVISORY WINDS/SEAS FOR A PORTION OF THE WATERS LATE
WEDNESDAY NIGHT INTO FRIDAY.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...TORNADO WATCH UNTIL 7 PM EDT THIS EVENING FOR GAZ114>119-
     137>141.
SC...LAKE WIND ADVISORY UNTIL 11 AM EDT TUESDAY FOR SCZ045.
MARINE...SMALL CRAFT ADVISORY UNTIL 11 AM EDT TUESDAY FOR AMZ352.
     TORNADO WATCH UNTIL 7 PM EDT THIS EVENING FOR AMZ354.
     SMALL CRAFT ADVISORY UNTIL MIDNIGHT EDT TUESDAY NIGHT FOR
     AMZ350.
     SMALL CRAFT ADVISORY UNTIL 6 AM EDT TUESDAY FOR AMZ354.
     GALE WATCH FROM 8 PM EDT THIS EVENING THROUGH LATE TONIGHT FOR
     AMZ374.
     SMALL CRAFT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR AMZ374.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT TUESDAY FOR AMZ330.

&&

JRJ
Hazardous weather outlook, Apr 13, 4:40 PM EDT, 2 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT MON APR 13 2009

AMZ350-352-354-GAZ116>119-137>141-SCZ043-047>051-141030-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-INLAND BRYAN-COASTAL BRYAN-
INLAND CHATHAM-COASTAL CHATHAM-LONG-INLAND LIBERTY-COASTAL LIBERTY-
INLAND MCINTOSH-COASTAL MCINTOSH-INLAND COLLETON-INLAND JASPER-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
440 PM EDT MON APR 13 2009

...TORNADO WATCH 150 IN EFFECT UNTIL 7 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   TORNADO WATCH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP TUESDAY AFTERNOON AHEAD OF AN APPROACHING COLD
FRONT. SOME OF THESE THUNDERSTORMS HAVE THE POTENTIAL TO BECOME
STRONG...IF NOT SEVERE...MAINLY CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AMZ330-374-GAZ101-SCZ040-042-044-045-141030-
CHARLESTON HARBOR-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-EFFINGHAM-ALLENDALE-HAMPTON-DORCHESTER-BERKELEY-
440 PM EDT MON APR 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TONIGHT.

SEVERE THUNDERSTORMS...THERE IS A SLIGHT RISK FOR SEVERE
THUNDERSTORMS ACROSS THE AREA THROUGH TONIGHT. THESE STORMS WILL
BE CAPABLE OF PRODUCING DAMAGING WINDS...TORNADOES...AND TO A
LESSER EXTENT LARGE HAIL. THE SEVERE THREAT WILL DECREASE AFTER 2
AM TUESDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP TUESDAY AFTERNOON AHEAD OF AN APPROACHING COLD
FRONT. SOME OF THESE THUNDERSTORMS HAVE THE POTENTIAL TO BECOME
STRONG...IF NOT SEVERE...MAINLY CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

GAZ087-088-099-100-114-115-141030-
JENKINS-SCREVEN-CANDLER-BULLOCH-TATTNALL-EVANS-
440 PM EDT MON APR 13 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SEVERE THUNDERSTORMS...SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO DEVELOP TUESDAY AFTERNOON AHEAD OF AN APPROACHING COLD
FRONT. SOME OF THESE THUNDERSTORMS HAVE THE POTENTIAL TO BECOME
STRONG...IF NOT SEVERE...MAINLY CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Apr 13, 3:48 PM EDT, 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
348 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0335 PM     TORNADO          4 SW DONALD             31.78N 81.90W
04/13/2009                   LONG               GA   EMERGENCY MNGR

            TORNADO REPORTED ON EBENEZER ROAD. MOVING NORTHEAST.

&&

MTE
Local storm report, Apr 13, 3:51 PM EDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
351 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0343 PM     HAIL             3 N DONALD              31.86N 81.85W
04/13/2009  E1.00 INCH       LONG               GA   LAW ENFORCEMENT

            ON HIGHWAY 261.

&&

MTE
Local storm report, Apr 13, 4:13 PM EDT, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
413 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0407 PM     FUNNEL CLOUD     HINESVILLE              31.85N 81.60W
04/13/2009                   LIBERTY            GA   TRAINED SPOTTER

            SPOTTER IN HINESVILLE REPORTS OCCASIONAL FUNNEL CLOUDS
            JUST NORTH OF TOWN.

&&

MTE
Local storm report, Apr 13, 4:27 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
427 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     HAIL             GUM BRANCH              31.86N 81.73W
04/13/2009  E1.75 INCH       LIBERTY            GA   PUBLIC

            PUBLIC REPORTED GOLF BALL SIZE HAIL STARTING AT 330 PM
            THEN DECREASING TO PENNY SIZE HAIL JUST BEFORE 4 PM
            BETWEEN HINESVILLE AND GLENVILLE ON STATE ROAD 196. ALL
            HAIL HAD STOPPED BY 4 PM.

0330 PM     TSTM WND DMG     GUM BRANCH              31.86N 81.73W
04/13/2009                   LIBERTY            GA   PUBLIC

            PUBLIC REPORT OF LARGE TREE LIMBS OF 12 INCHES IN
            DIAMETER DOWN FROM WIND. DAMAGE MAY HAVE BEEN A RESULT OF
            A TORNADO.

&&

MTE
Local storm report, Apr 13, 4:38 PM EDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
438 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0327 PM     TSTM WND DMG     DONALD                  31.82N 81.85W
04/13/2009                   LONG               GA   PUBLIC

            SEVERAL TREES AND POWER LINES DOWN ACROSS SMITH BERRY
            ROAD NEAR HIGHWAY 301 AND STATE ROAD 196 NEAR DONALD.

&&

MTE
Local storm report, Apr 13, 4:40 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT MON APR 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 PM     HAIL             BEARDS CREEK            31.87N 81.89W
04/13/2009  E0.88 INCH       LONG               GA   AMATEUR RADIO

&&

MTE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 4:23 AM EDTGale WatchCHS12 hr
Apr 13, 4:23 AM EDTSmall Craft AdvisoryCHS55 hr
Apr 13, 2:29 PM EDTSevere Thunderstorm WarningCHSTattnall46 min
Apr 13, 2:40 PM EDTTornado WarningCHSTattnall22 min
Apr 13, 3:00 PM EDTSevere Thunderstorm WarningCHSLong, Tattnall60 min
Apr 13, 3:16 PM EDTTornado WarningCHSLong, Tattnall44 min
Apr 13, 3:28 PM EDTSevere Thunderstorm WarningCHSBryan, Liberty, Long, Tattnall62 min
Apr 13, 3:40 PM EDTTornado WarningCHSLiberty, Long50 min
Apr 13, 3:52 PM EDTAreal Flood AdvisoryCHSBryan, Bulloch, Effingham, Evans, Screven, Tattnall53 min
Apr 13, 4:07 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Effingham, Liberty53 min
Apr 13, 4:08 PM EDTSevere Thunderstorm WarningCHSLiberty, Long, McIntosh67 min
Apr 13, 4:14 PM EDTTornado WarningCHSBryan, Chatham, Liberty46 min
Apr 13, 4:16 PM EDTTornado WarningCHSLiberty, Long, McIntosh44 min
Apr 13, 4:50 PM EDTTornado WarningCHSLiberty, McIntosh40 min
Apr 13, 4:54 PM EDTSpecial Marine WarningCHS2 hr
Apr 13, 4:56 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty64 min
Apr 13, 5:32 PM EDTAreal Flood AdvisoryCHSBryan, Chatham88 min
Apr 13, 5:54 PM EDTSpecial Marine WarningCHS68 min
Apr 13, 6:17 PM EDTAreal Flood AdvisoryCHSMcIntosh58 min
Apr 13, 6:44 PM EDTSpecial Marine WarningCHS2 hr
Apr 13, 4:29 AM EDTLake Wind AdvisoryCHSBerkeley12 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2009Every severe thunderstorm warning in 2009

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.