Alert archive / Georgia / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 7, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at Jan 30, 2013, 9:26 PM EST for 4 counties in Georgia. It was in force for 79 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
- Jan 30, 2013, 9:26 PM EST (02:26 UTC)
- Expired
- Jan 30, 2013, 10:45 PM EST
- In force
- 79 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Brantley County, GA, Camden County, GA, Glynn County, GA, Wayne County, GA
The radar
The Jacksonville radar (KJAX), 82 km from the middle of the area, began a volume at 02:30 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 30, 5:45 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 2.4 hours before the alert went out and 80 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.
- Mixed-layer CAPE
- 77 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1554 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 378 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Jan 30, 8:56 PM EST, 30 minutes earlier.
Area forecast discussion, Jan 30, 8:56 PM EST, 30 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
856 PM EST WED JAN 30 2013
...TORNADO WATCH REMAINS IN EFFECT FOR PORTIONS OF THE AREA THIS
EVENING...
.UPDATE...
SQUALL LINE IS SLOWLY PROGRESSING THROUGH WESTERN PORTIONS OF
SOUTHEAST GEORGIA...AND THERE HAVE BEEN REPORTS OF A FEW TREES
DOWN ACROSS SOUTHEAST GEORGIA WITH THIS ACTIVITY. THE SQUALL LINE
HAS PROGRESSIVELY SHOWN SIGNS OF WEAKENING THIS EVENING AND THIS
WILL CONTINUE TO BE THE CASE AS WE MOVE THROUGH THE EVENING. A
VERY INTENSE 850MB LLJ OF 60 TO 70 KNOTS WILL CONTINUE TO SUPPORT
A FEW DAMAGING WIND GUSTS OVER THE NEXT HOUR OR SO...PRIMARILY
OVER THE WESTERN PORTIONS OF SOUTHEAST GEORGIA. SO FAR THERE HAVE
REALLY BEEN NO SIGNS OF ANY CIRCULATION WITH ANY OF THESE STORMS
AND THIS IS EXPECTED TO REMAIN THE CASE. THE TOR WATCH WILL LIKELY
BE DROPPED SOON. ELSEWHERE...STRONG WIND GUSTS UP TO AROUND 45 MPH
WILL BE POSSIBLE AS THE LINE CONTINUES EAST BUT SEVERE WEATHER IS
NOT EXPECTED.
WINDS WILL SHARPLY TURN TO THE NORTHWEST BEHIND THE WEAKENING
SQUALL LINE AND MUCH COLDER AND DRIER AIR WILL QUICKLY ADVECT INTO
THE REGION. THE COLD FRONT IS EXPECTED TO MOVE OFF THE ATLANTIC
COAST BY AROUND 6Z. NORTHWEST WINDS WILL REMAIN GUSTY BEHIND THE
COLD FRONT DURING THE EARLY MORNING HOURS. THE WIND AND LAKE WIND
ADVISORIES WERE EARLIER EXTENDED THROUGH THE EVENING TO ACCOUNT
FOR GUSTY WINDS AHEAD OF THE FRONT AND TO ALSO ACCOUNT FOR AN
INITIAL SURGE OF GUSTY WINDS BEHIND THE FRONT.
&&
.AVIATION...
A WEAKENING SQUALL LINE IS EXPECTED TO IMPACT THE TERMINALS
BETWEEN 4Z AND 6Z THIS EVENING WITH A QUICK SHOT OF RAIN AND GUSTY
WINDS. A BRIEF PERIOD OF MVFR CEILINGS WILL ACCOMPANY THE FRONT
THROUGH THE AREA. WINDS WILL SHARPLY TURN FROM THE SOUTH TO THE
NORTHWEST WITH THE PASSAGE OF THE SQUALL LINE WITH WINDY
CONDITIONS EXPECTED TO CONTINUE THROUGH THE NIGHT AS COLDER AIR
ADVECTS INTO THE REGION. MUCH DRIER AIR BEHIND THE COLD FRONT WILL
ALLOW FOR CLOUDS TO QUICKLY BREAK UP DURING THE EARLY MORNING
HOURS. VFR CONDITIONS WILL THEN PREVAIL THROUGH THURSDAY.
&&
.MARINE...
SOLID SMALL CRAFT ADVISORY CONDITIONS ARE ONGOING OVER THE COASTAL
WATERS THIS EVENING WITH SOUTHERLY WINDS OF 20 TO 30 KNOTS AND
SEAS OF 6 TO 9 FEET. SOUTHERLY WINDS WILL CONTINUE UNTIL A WEAK
SQUALL LINE MOVES OVER THE AREA DURING THE EARLY MORNING HOURS.
WINDS WILL THEN SHARPLY TURN TO THE NORTHWEST AND OCCASIONAL GUSTS
TO GALE FORCE WILL ACCOMPANY THE FRONT THROUGH THE AREA. WE WILL
CONTINUE TO COVER THIS WITH A SMALL CRAFT ADVISORY...AS THE HIGHEST
GUSTS WILL PRIMARILY BE ASSOCIATED WITH THE SHOWER ACTIVITY ALONG
THE COLD FRONT. OCCASIONAL GALE FORCE GUSTS WILL CONTINUE BEHIND
THE FRONT AS COLDER AND DRIER AIR QUICKLY ADVECTS OVER THE WATERS.
RIP CURRENTS: LOW RISK OF RIP CURRENTS.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 43 59 32 59 / 80 0 0 0
SSI 46 59 39 61 / 60 0 0 0
JAX 50 61 32 63 / 60 0 0 0
SGJ 51 61 39 63 / 60 0 0 0
GNV 49 62 30 65 / 60 0 0 0
OCF 52 63 32 67 / 60 0 0 0
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...WIND ADVISORY UNTIL 3 AM EST THURSDAY FOR BAKER-COLUMBIA-
GILCHRIST-HAMILTON-SUWANNEE.
LAKE WIND ADVISORY UNTIL 3 AM EST THURSDAY FOR ALACHUA-BRADFORD-
CLAY-DUVAL-FLAGLER-MARION-NASSAU-PUTNAM-ST JOHNS-UNION.
FIRE WEATHER WATCH FROM THURSDAY MORNING THROUGH THURSDAY
EVENING FOR ALACHUA-BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-
FLAGLER-GILCHRIST-HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-
SUWANNEE-UNION.
GA...WIND ADVISORY UNTIL 3 AM EST THURSDAY FOR APPLING-ATKINSON-BACON-
BRANTLEY-CHARLTON-CLINCH-COFFEE-ECHOLS-JEFF DAVIS-PIERCE-
WARE-WAYNE.
LAKE WIND ADVISORY UNTIL 3 AM EST THURSDAY FOR COASTAL CAMDEN-
COASTAL GLYNN-INLAND CAMDEN-INLAND GLYNN.
AM...SMALL CRAFT ADVISORY UNTIL 4 PM EST THURSDAY FOR 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.
SMALL CRAFT ADVISORY FOR WINDS UNTIL 11 AM EST THURSDAY FOR
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.
&&
SHULER/SHASHY/Hazardous weather outlook, Jan 30, 9:18 PM EST, 8 minutes before
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Local storm report, Jan 30, 8:28 PM EST, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
828 PM EST WED JAN 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0810 PM TSTM WND DMG 3 NW BROXTON 31.65N 82.92W
01/30/2013 COFFEE GA EMERGENCY MNGR
SEVERAL TREES WERE BLOWN DOWN NORHTWEST OF BROXTON.
&&
AENYEDISpecial weather statement, Jan 30, 8:43 PM EST, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
843 PM EST WED JAN 30 2013
GAZ134>136-150-151-163-310215-
APPLING-BACON-CLINCH-PIERCE-WARE-WAYNE-
843 PM EST WED JAN 30 2013
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHWESTERN
WAYNE...NORTHERN WARE...WESTERN PIERCE...EASTERN APPLING...EASTERN
BACON AND NORTHERN CLINCH COUNTIES FOR STRONG WINDS VALID UNTIL 915
PM EST...
AT 842 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG SHOWERS AND THUNDERSTORMS CENTERED ALONG A LINE EXTENDING
FROM 16 MILES NORTHWEST OF SURRENCY TO 9 MILES WEST OF MANOR...
MOVING EAST AT 45 MPH. THESE STRONG THUNDERSTORMS WILL AFFECT AREAS
AROUND NEW LACY...MANOR...DIXIE UNION...WARESBORO...SURRENCY...
NEEDHAM...WAYCROSS...SUNNYSIDE...DEENWOOD AND BRISTOL THROUGH 915 PM
EST. GUSTY WINDS OF 40 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE
MINOR WIND DAMAGE.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM EST THURSDAY MORNING
FOR NORTHERN FLORIDA AND SOUTHEAST GEORGIA.
LAT...LON 3191 8213 3189 8212 3190 8211 3187 8210
3179 8197 3122 8222 3122 8228 3119 8228
3118 8224 3102 8231 3101 8268 3191 8223
TIME...MOT...LOC 0142Z 260DEG 39KT 3193 8228 3110 8268
SHASHYLocal storm report, Jan 30, 8:52 PM EST, 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
852 PM EST WED JAN 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM TSTM WND GST HOMERVILLE 31.04N 82.75W
01/30/2013 E0 MPH CLINCH GA AWOS
THUNDERSTORM WIND GUST OF 49 MPH
0835 PM TSTM WND GST HOMERVILLE 31.04N 82.75W
01/30/2013 E49 MPH CLINCH GA AWOS
&&
AWALKERLocal storm report, Jan 30, 9:02 PM EST, 24 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
902 PM EST WED JAN 30 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM TSTM WND GST HOMERVILLE 31.04N 82.75W
01/30/2013 M49.00 MPH CLINCH GA AWOS
&&
CORRECTED PREVIOUS LSR AND INDICATED MEASURED REPORTED.
ARSSpecial weather statement, Jan 30, 9:17 PM EST, 9 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 8:29 PM EST | Severe Thunderstorm Warning | JAX | Hamilton | 46 min |
| Jan 30, 8:54 PM EST | Severe Thunderstorm Warning | JAX | Suwannee | 51 min |
| Jan 30, 9:17 PM EST | Special Weather Statement | JAX | Columbia, Suwannee | 43 min |
| Jan 30, 9:24 PM EST | Special Weather Statement | JAX | Hamilton | 51 min |
| Jan 30, 10:08 PM EST | Special Weather Statement | JAX | Alachua, Baker, Bradford, Gilchrist, Union | 52 min |
| Jan 30, 10:23 PM EST | Special Marine Warning | JAX | 3 hr | |
| Jan 30, 10:42 PM EST | Special Weather Statement | JAX | Nassau | 33 min |
| Jan 30, 10:46 PM EST | Special Weather Statement | JAX | Alachua, Bradford, Clay, Duval, Putnam | 44 min |
| Jan 30, 10:49 PM EST | Special Marine Warning | JAX | 3 hr | |
| Jan 30, 11:12 PM EST | Special Weather Statement | JAX | Clay, Duval, Putnam | 48 min |
| Jan 31, 2:32 AM EST | Freeze Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 11 hr |
| Jan 31, 3:16 AM EST | Fire Weather Watch | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 23 hr |
| Jan 31, 3:16 AM EST | Red Flag Warning | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 16 hr |
| Jan 31, 1:33 PM EST | Freeze Watch | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 23 hr |
| Jan 31, 1:33 PM EST | Freeze Warning | JAX | Baker, Bradford, Gilchrist, Nassau, Suwannee, Union | 19 hr |
| Jan 30, 7:20 PM EST | Special Weather Statement | JAX | Coffee | 35 min |
| Jan 30, 7:39 PM EST | Severe Thunderstorm Warning | JAX | Appling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 1 more | 36 min |
| Jan 30, 8:14 PM EST | Severe Thunderstorm Warning | JAX | Appling, Atkinson, Bacon, Clinch, Coffee, Jeff Davis and 1 more | 46 min |
| Jan 30, 8:43 PM EST | Special Weather Statement | JAX | Appling, Pierce, Ware | 32 min |
| Jan 30, 8:52 PM EST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Brantley, Charlton, Clinch, Pierce and 2 more | 38 min |
| Jan 30, 9:07 PM EST | Severe Thunderstorm Warning | JAX | Charlton, Clinch, Echols, Ware | 38 min |
| Jan 30, 9:39 PM EST | Special Weather Statement | JAX | Camden | 51 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2013Every 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.