Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 74, NWS Jacksonville, FL

June 4, 2013Glynn County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 4, 2013, 3:36 PM EDT for Glynn County, Georgia. It was in force for 39 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
Jun 4, 2013, 3:36 PM EDT (19:36 UTC)
Expired
Jun 4, 2013, 4:15 PM EDT
In force
39 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 19:35 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 12:00Z, 7.6 hours before the alert went out and 82 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 2013-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1049 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 2013-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
1049 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
3 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 Jun 4, 11:35 AM EDT, 4 hours 1 minute earlier.

Area forecast discussion, Jun 4, 11:35 AM EDT, 4 hours 1 minute before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jun 4, 1:22 PM EDT, 2 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
122 PM EDT TUE JUN 4 2013

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-051730-
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-
122 PM EDT TUE JUN 4 2013

...STRONG THUNDERSTORMS WITH LOCALIZED FLOODING POSSIBLE THIS
AFTERNOON AND EVENING...

...FLOODING RAINS POSSIBLE FROM THURSDAY THROUGH EARLY FRIDAY AS
LOW PRESSURE CROSSES OUR REGION...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS ARE EXPECTED
THROUGHOUT NORTHEAST FLORIDA THIS AFTERNOON. SCATTERED TO NUMEROUS
SHOWERS AND EMBEDDED THUNDERSTORMS WILL DEVELOP OVER PORTIONS OF
SOUTHEAST GEORGIA DURING THE MID TO LATE AFTERNOON HOURS. STORM
MOTION WILL BE SLOW AND GENERALLY EAST TO NORTHEAST. A FEW STORMS
COULD BECOME STRONG...WITH BLINDING DOWNPOURS...FREQUENT LIGHTNING
STRIKES...AND LOCALLY GUSTY WINDS BEING THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...
A LOW PRESSURE CENTER IS EXPECTED TO CONSOLIDATE AND MOVE NORTH-
NORTHEASTWARD TOWARDS THE FLORIDA BIG BEND REGION ON WEDNESDAY
NIGHT AND THURSDAY. A PERIOD OF HEAVY RAINFALL IS BECOMING
INCREASINGLY LIKELY FOR OUR REGION FROM THURSDAY THROUGH EARLY
FRIDAY. A FLOOD WATCH MAY BE ISSUED FOR PORTIONS OF OUR REGION
DURING THIS TIME FRAME. SATURATED GROUND CONDITIONS ACROSS
NORTHEAST FLORIDA MAY RESULT IN FLOODING OF SMALLER BASIN RIVERS
AND THEIR TRIBUTARIES.

SMALL CRAFT ADVISORIES ARE EXPECTED FROM WEDNESDAY NIGHT THROUGH
AT LEAST THURSDAY NIGHT ON THE OFFSHORE WATERS AS SOUTH TO
SOUTHWEST WINDS INCREASE. THESE CONDITIONS MAY ALSO BE EXPERIENCED
IN THE NEAR SHORE WATERS DEPENDING ON THE STRENGTH OF THE LOW
PRESSURE CENTER AS IT CROSSES OUR REGION.

OTHERWISE...SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS OUR AREA
MAINLY DURING THE AFTERNOON AND EVENING DURING THE UPCOMING
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED AT THIS TIME.

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

JDS/NELSON

In the hours before

Special weather statement, Jun 4, 12:14 PM EDT, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1214 PM EDT TUE JUN 4 2013

FLZ022-030-031-036-041700-
ALACHUA-BRADFORD-COLUMBIA-UNION-
1214 PM EDT TUE JUN 4 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR BRADFORD...
NORTHERN ALACHUA...SOUTHEASTERN COLUMBIA AND UNION COUNTIES FOR
EXCESSIVE LIGHTNING VALID UNTIL 100 PM EDT...

AT 1214 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS CENTERED 3 MILES SOUTH OF UPLAND PINES...MOVING
NORTHEAST AT 15 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT
AREAS AROUND OLENO STATE PARK...LA CROSSE...UPLAND PINES...
PROVIDENCE...WORTHINGTON SPRINGS...DUKES...BROOKER...GROVES...
PALESTINE COMMUNITY AND LULU THROUGH 100 PM EDT. EXCESSIVE
CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED
BUILDING. UNPLUG ELECTRONIC DEVICES AND APPLIANCES AS THEY ARE
SUSCEPTIBLE TO POWER SURGES AND MAY BE DAMAGED BY NEARBY LIGHTNING
STRIKES. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND
MINOR FLOODING OF LOW-LYING AREAS.

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

LAT...LON 3016 8254 3001 8210 2976 8236 2993 8271
TIME...MOT...LOC 1614Z 227DEG 14KT 2993 8251

NELSON
Special weather statement, Jun 4, 1:55 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
155 PM EDT TUE JUN 4 2013

FLZ025-041845-
DUVAL-
155 PM EDT TUE JUN 4 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
DUVAL COUNTY FOR STRONG WINDS AND FUNNEL CLOUDS VALID UNTIL 245 PM
EDT...

AT 155 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED OVER TALLYRAND...MOVING EAST AT 10 MPH. THESE
STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND SAN MARCO...
RIVERSIDE...DOWNTOWN JACKSONVILLE...TALLYRAND...ARLINGTON...CRAIG
FIELD...FORT CAROLINE...TALBOT ISLAND...MAYPORT AND LITTLE TALBOT
ISLAND THROUGH 245 PM EDT. GUSTY WINDS OF 35 TO 45 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. DOPPLER RADAR HAS
INDICATED WEAK ROTATION WITHIN THIS STORM. TORNADOES MAY DEVELOP WITH
LITTLE OR NO ADVANCE WARNING. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.

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

LAT...LON 3036 8139 3030 8170 3039 8172 3054 8148
      3053 8146 3051 8144 3049 8141 3041 8140
      3040 8139
TIME...MOT...LOC 1755Z 254DEG 11KT 3036 8163

NELSON
Special weather statement, Jun 4, 2:38 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
238 PM EDT TUE JUN 4 2013

FLZ025-033-041930-
DUVAL-ST. JOHNS-
238 PM EDT TUE JUN 4 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EXTREME
NORTHERN ST. JOHNS AND EASTERN DUVAL COUNTIES FOR STRONG WINDS AND
FUNNEL CLOUDS VALID UNTIL 330 PM EDT...

AT 238 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED OVER SAN PABLO...MOVING SOUTHEAST AT 5 MPH.
THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
BAYMEADOWS...UNF...SAN PABLO...NEPTUNE BEACH...JACKSONVILLE BEACH...
SAWGRASS...PALM VALLEY AND PONTE VEDRA BEACH THROUGH 330 PM EDT.
GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
DAMAGE. DOPPLER RADAR HAS INDICATED WEAK ROTATION WITHIN THIS STORM.
TORNADOES MAY DEVELOP WITH LITTLE OR NO ADVANCE WARNING. HEAVY
RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING
OF LOW-LYING AREAS.

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

LAT...LON 3018 8155 3030 8167 3036 8139 3019 8136
TIME...MOT...LOC 1838Z 310DEG 6KT 3030 8145

NELSON
Special weather statement, Jun 4, 3:14 PM EDT, 22 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jun 4, 3:21 PM EDT, 15 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:13 PM EDTSpecial Weather StatementJAXBradford, Union32 min
Jun 3, 8:23 PM EDTAreal Flood AdvisoryJAXAlachua, Bradford, Columbia, Union52 min
Jun 3, 8:55 PM EDTAreal Flood AdvisoryJAXFlagler50 min
Jun 3, 9:13 PM EDTSpecial Marine WarningJAX62 min
Jun 3, 10:05 PM EDTAreal Flood AdvisoryJAXColumbia, Suwannee40 min
Jun 4, 12:14 PM EDTSpecial Weather StatementJAXBradford, Union46 min
Jun 4, 1:29 PM EDTSpecial Marine WarningJAX2 hr
Jun 4, 1:55 PM EDTSpecial Weather StatementJAXDuval50 min
Jun 4, 2:21 PM EDTAreal Flood AdvisoryJAXFlagler, Saint Johns54 min
Jun 4, 2:24 PM EDTAreal Flood AdvisoryJAXDuval2 hr
Jun 4, 2:38 PM EDTSpecial Weather StatementJAXDuval52 min
Jun 4, 2:40 PM EDTSpecial Marine WarningJAX2 hr
Jun 4, 3:34 PM EDTSpecial Marine WarningJAX56 min
Jun 4, 5:04 PM EDTSpecial Weather StatementJAXHamilton, Suwannee41 min
Jun 4, 5:07 PM EDTSpecial Weather StatementJAXFlagler23 min
Jun 4, 5:39 PM EDTAreal Flood AdvisoryJAXAlachua, Gilchrist111 min
Jun 4, 5:45 PM EDTSpecial Weather StatementJAXHamilton30 min
Jun 4, 5:49 PM EDTSpecial Weather StatementJAXPutnam26 min
Jun 4, 3:14 PM EDTSpecial Weather StatementJAXGlynn46 min
Jun 4, 4:12 PM EDTSpecial Weather StatementJAXGlynn, Wayne48 min
Jun 4, 4:47 PM EDTSpecial Weather StatementJAXAppling28 min
Jun 4, 5:10 PM EDTSpecial Weather StatementJAXPierce35 min
Jun 4, 5:33 PM EDTSpecial Weather StatementJAXAppling27 min
Jun 4, 6:12 PM EDTSpecial Weather StatementJAXPierce33 min
Jun 4, 6:26 PM EDTAreal Flood AdvisoryJAXPierce94 min
Jun 4, 6:28 PM EDTSpecial Weather StatementJAXBrantley32 min
Jun 4, 6:37 PM EDTSpecial Weather StatementJAXBrantley, Pierce53 min
Jun 4, 6:42 PM EDTSpecial Weather StatementJAXClinch33 min
Jun 4, 6:55 PM EDTSpecial Weather StatementJAXBrantley50 min
Jun 4, 7:01 PM EDTSpecial Weather StatementJAXCoffee29 min
Jun 4, 7:21 PM EDTSpecial Weather StatementJAXAtkinson39 min
Jun 4, 7:29 PM EDTSpecial Weather StatementJAXPierce46 min
Jun 4, 7:33 PM EDTAreal Flood AdvisoryJAXBacon, Brantley, Camden, Charlton, Coffee, Pierce and 1 more87 min
Jun 4, 7:44 PM EDTSpecial Weather StatementJAXBrantley31 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.