Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 48, NWS Jacksonville, FL

April 14, 2013Glynn County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 14, 2013, 10:19 PM EDT for Glynn County, Georgia. It was in force for 11 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 14, 2013, 10:19 PM EDT (02:19 UTC)
Expired: Apr 14, 2013, 10:30 PM EDT
In force: 11 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Glynn County, GA

The radar

The Jacksonville radar (KJAX), 83 km from the middle of the area, began a volume at 02:21 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.3 hours before the alert went out and 283 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1111 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: -301 m²/s²
0-3 km storm-relative helicity: -280 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 Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 14, 10:18 PM EDT, 1 minute earlier.

Area forecast discussion, Apr 14, 10:18 PM EDT, 1 minute before

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Hazardous weather outlook, Apr 14, 2:03 PM EDT, 8 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
203 PM EDT SUN APR 14 2013

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-151815-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM-
FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM-
ST AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE-
FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE-
ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-HAMILTON-
SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY-ST JOHNS-
GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE-JEFF DAVIS-BACON-
APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-
COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN-
203 PM EDT SUN APR 14 2013

...TORNADO WATCH IN EFFECT FOR NORTHEAST FLORIDA AND A PORTION OF
SOUTHEAST GEORGIA UNTIL 10 PM THIS EVENING...

...HEAVY RAINFALL AND ISOLATED STRONG THUNDERSTORMS EXPECTED THIS
AFTERNOON AND TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...
SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP THROUGH THE
REST OF THE AFTERNOON INTO THE LATE EVENING HOURS AS A WARM FRONT
LIFTS NORTH ACROSS THE REGION. DAMAGING WINDS AND LARGE HAIL ARE
THE PRIMARY CONCERN...BUT ISOLATED TORNADOES WILL BE POSSIBLE AS
STRONG LOW LEVEL JET MOVES INTO THE REGION. THUS A TORNADO WATCH
HAS BEEN ISSUED FOR NORTHEAST FLORIDA...THE SOUTHERN PORTION OF
SOUTHEAST GEORGIA AND THE ADJACENT NEAR SHORE WATERS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

ISOLATED TO SCATTERED THUNDERSTORMS WILL LINGER OVER THE REGION ON
MONDAY...MAINLY DURING THE AFTERNOON HOURS.

ISOLATED THUNDERSTORMS WILL BE POSSIBLE EACH AFTERNOON AND EVENING
FROM TUESDAY THROUGH THURSDAY.

ISOLATED THUNDERSTORM ACTIVITY WILL REMAIN POSSIBLE WITH THE NEXT
COLD FRONTAL PASSAGE LATE FRIDAY INTO SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED
THIS AFTERNOON AND TONIGHT...AND TO REPORT ANY SIGNIFICANT
FLOODING OR SEVERE WEATHER.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

JCH/MKT

In the hours before

Special weather statement, Apr 14, 7:55 PM EDT, 2 hours 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
755 PM EDT SUN APR 14 2013

FLZ036-037-040-150045-
ALACHUA-MARION-PUTNAM-
755 PM EDT SUN APR 14 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHEASTERN
ALACHUA...EXTREME WESTERN PUTNAM AND WESTERN MARION COUNTIES FOR
STRONG WINDS AND SMALL HAIL VALID UNTIL 845 PM EDT...

AT 755 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 6 MILES SOUTHWEST OF FLEMINGTON...MOVING
NORTHEAST AT 35 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT
AREAS AROUND ROMEO...RAINBOW LAKES ESTATES...OCALA AIRPORT...OCALA...
FLEMINGTON...REDDICK...MICANOPY...LOWELL...SPARR AND MCINTOSH THROUGH
845 PM EDT. HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS
OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT SUNDAY EVENING
FOR NORTHEASTERN FLORIDA AND SOUTHEAST GEORGIA.

LAT...LON 2898 8234 2901 8241 2901 8242 2904 8245
      2922 8245 2922 8241 2949 8242 2972 8205
      2895 8199 2895 8231
TIME...MOT...LOC 2355Z 241DEG 29KT 2934 8234

PETERSON

Local storm report, Apr 14, 7:56 PM EDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
756 PM EDT SUN APR 14 2013

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

0630 PM     HAIL             5 NE OCKLAWAHA          29.09N 81.87W
04/14/2013  M1.00 INCH       MARION             FL   COCORAHS

            ONE INCH DIAMETER HAIL NE OF OCKLAWAHA

&&

ZALLEN

Special weather statement, Apr 14, 8:05 PM EDT, 2 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
805 PM EDT SUN APR 14 2013

FLZ022-GAZ150-162>164-150045-
CHARLTON-CLINCH-COLUMBIA-ECHOLS-WARE-
805 PM EDT SUN APR 14 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WARE...EASTERN
CLINCH...SOUTHEASTERN ECHOLS...EXTREME NORTHERN COLUMBIA AND
NORTHWESTERN CHARLTON COUNTIES FOR STRONG WINDS AND SMALL HAIL VALID
UNTIL 845 PM EDT...

AT 805 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 14 MILES NORTH OF NEEDMORE...MOVING NORTHEAST
AT 40 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
NEEDMORE...ARGYLE...MANOR...WARESBORO AND NEEDHAM THROUGH 845 PM EDT.
HAIL UP TO THREE QUARTER INCH IN DIAMETER AND GUSTY WINDS OF 45 TO 55
MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE.

REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3134 8248 3065 8222 3058 8267 3089 8283
TIME...MOT...LOC 0005Z 217DEG 36KT 3089 8275

PETERSON

Local storm report, Apr 14, 8:27 PM EDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
827 PM EDT SUN APR 14 2013

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

0725 PM     TSTM WND DMG     4 SSE JENNINGS          30.54N 83.08W
04/14/2013                   HAMILTON           FL   911 CALL CENTER

            CENTRAL DISPATCH REPORTED A TREE DOWN ON NW 66TH BLVD.

0728 PM     TSTM WND DMG     4 NW SUWANNEE SPRINGS   30.43N 82.99W
04/14/2013                   HAMILTON           FL   911 CALL CENTER

            CENTRAL DISPATCH REPORTED A TREE DOWN ON 24TH STREET.

&&

SHULER

Local storm report, Apr 14, 9:34 PM EDT, 45 minutes before

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Local storm report, Apr 14, 9:53 PM EDT, 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 8:05 PM EDT	Special Weather Statement	JAX	Clinch, Ware	40 min
Apr 14, 8:36 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Charlton, Pierce, Ware	39 min
Apr 14, 9:16 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Camden, Glynn, Wayne	59 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2013 Every severe thunderstorm warning in 2013

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.