Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 116, NWS Jacksonville, FL

May 13, 2017Charlton County, Ware County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at May 13, 2017, 7:32 PM EDT for Charlton County, Ware County, Georgia. It was in force for 58 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
May 13, 2017, 7:32 PM EDT (23:32 UTC)
Expired
May 13, 2017, 8:30 PM EDT
In force
58 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Charlton County, GA, Ware County, GA

The radar

The Moody AFB radar (KVAX), 69 km from the middle of the area, began a volume at 23:36 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, 11.5 hours before the alert went out and 72 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 2017-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 937 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 2017-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
937 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
781 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

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 May 13, 2:16 PM EDT, 5 hours 16 minutes earlier.

Area forecast discussion, May 13, 2:16 PM EDT, 5 hours 16 minutes before
Area Forecast Discussion
National Weather Service Jacksonville FL
216 PM EDT Sat May 13 2017

.NEAR TERM.../THROUGH SUNDAY/...

An area of low pressure will track East across the region this
afternoon, with showers and storms expected. A cold front will
move Southeast into SE GA this evening, then slowly move across
NE FL overnight into Sunday morning. A few coastal showers and
storms will be possible in the morning hours Sunday as the front
passes. Clouds will decrease Sunday afternoon following the front.
Temperatures will trend below normal for Sunday.

&&

.SHORT TERM.../SUNDAY NIGHT THROUGH TUESDAY/...

High pressure will build from the Northwest then North into Monday,
with mainly clear skies. High pressure will then build to the East
into Tuesday. Temperatures will trend above normal this period.

&&

.LONG TERM.../TUESDAY NIGHT THROUGH SATURDAY/...

High pressure will be East of the region this period, with a
prolonged period of dry weather expected. Could be enough moisture
return by Saturday, to initiate afternoon convection on sea breeze.
Temperatures will be above normal this period.

&&

.MARINE...

A COLD FRONT WILL SLIDE SOUTHEAST ACROSS AREA WATERS TONIGHT INTO
SUNDAY MORNING. HIGH PRESSURE WILL BUILD TO THE NORTHWEST AND
NORTH INTO EARLY NEXT WEEK...THEN TO THE EAST THROUGH MID WEEK.

&&

.AVIATION...

Scattered to numerous showers and storms are expected this afternoon
into evening, with restrictions expected. VFR conditions will then
be expected for much of the overnight. There is a chance for a few
showers and storms near the coast Sunday morning, which could cause
brief restrictions.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  64  84  60  91 /  50   0   0   0
SSI  68  81  68  83 /  30  20   0   0
JAX  66  82  65  88 /  30  20   0   0
SGJ  68  82  68  83 /  50  20  10  10
GNV  64  86  63  91 /  30  10   0   0
OCF  65  88  64  91 /  50  10   0   0

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...None.
&&

Struble
Hazardous weather outlook, May 13, 2:25 PM EDT, 5 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Jacksonville FL
225 PM EDT Sat May 13 2017

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-141830-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
Hamilton-Suwannee-Columbia-Baker-Inland Nassau-Inland Duval-Union-
Bradford-Clay-St. Johns-Gilchrist-Alachua-Putnam-Flagler-Marion-
Coastal Nassau-Coastal Duval-Coffee-Jeff Davis-Bacon-Appling-
Wayne-Atkinson-Ware-Pierce-Brantley-Inland Glynn-Coastal Glynn-
Echols-Clinch-Charlton-Inland Camden-Coastal Camden-
225 PM EDT Sat May 13 2017

...MARGINAL RISK FOR SEVERE WEATHER THROUGH THIS EVENING...

...ELEVATED FIRE DANGER TODAY...

This Hazardous Weather Outlook is for Northeast Florida,
Southeast Georgia and the Adjacent Coastal Waters.

.DAY ONE...This Afternoon and Tonight...

THERE IS A MARGINAL RISK FOR SEVERE WEATHER...WITH STRONG WINDS
BEING THE MAIN HAZARD.

ELEVATED FIRE DANGER TODAY.

REDUCED VISIBILITIES EXPECTED TONIGHT NEAR AREA WILDFIRES.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

REDUCED VISIBILITIES EXPECTED NEAR AREA WILDFIRES EACH NIGHT.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

For additional information, visit the National Weather Service in
Jacksonville website on the internet at weather.gov/jax.

In the hours before

Special weather statement, May 13, 4:38 PM EDT, 2 hours 54 minutes before
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Local storm report, May 13, 5:27 PM EDT, 2 hours 5 minutes before
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Local storm report, May 13, 5:35 PM EDT, 1 hour 57 minutes before
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Special weather statement, May 13, 5:59 PM EDT, 1 hour 33 minutes before
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Special weather statement, May 13, 7:03 PM EDT, 29 minutes before
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Special weather statement, May 13, 7:06 PM EDT, 26 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 9:50 PM EDTSpecial Weather StatementJAXSuwannee40 min
May 13, 12:02 PM EDTSpecial Marine WarningJAX58 min
May 13, 2:06 PM EDTSpecial Weather StatementJAXHamilton39 min
May 13, 2:42 PM EDTSpecial Weather StatementJAXBaker, Columbia, Hamilton48 min
May 13, 3:00 PM EDTSevere Thunderstorm WarningJAXBaker, Columbia45 min
May 13, 3:19 PM EDTSevere Thunderstorm WarningJAXBaker, Duval, Nassau41 min
May 13, 3:31 PM EDTSpecial Weather StatementJAXAlachua44 min
May 13, 3:40 PM EDTSpecial Marine WarningJAX2 hr
May 13, 3:47 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau58 min
May 13, 4:00 PM EDTSevere Thunderstorm WarningJAXNassau45 min
May 13, 4:02 PM EDTSpecial Weather StatementJAXBaker28 min
May 13, 4:25 PM EDTSpecial Weather StatementJAXBaker, Duval50 min
May 13, 4:38 PM EDTSpecial Weather StatementJAXDuval52 min
May 13, 4:43 PM EDTSevere Thunderstorm WarningJAXDuval, Saint Johns35 min
May 13, 5:59 PM EDTSpecial Weather StatementJAXHamilton61 min
May 13, 7:06 PM EDTSpecial Weather StatementJAXHamilton54 min
May 13, 7:47 PM EDTTornado WarningJAXBaker28 min
May 13, 6:31 AM EDTSpecial Weather StatementJAXWare29 min
May 13, 12:15 PM EDTSpecial Weather StatementJAXBrantley, Camden, Glynn60 min
May 13, 12:25 PM EDTSpecial Weather StatementJAXAppling, Jeff Davis65 min
May 13, 12:59 PM EDTSpecial Weather StatementJAXGlynn46 min
May 13, 1:14 PM EDTSpecial Weather StatementJAXAppling, Bacon, Coffee, Jeff Davis46 min
May 13, 1:54 PM EDTSpecial Weather StatementJAXAtkinson, Bacon, Clinch, Echols, Ware51 min
May 13, 2:38 PM EDTSpecial Weather StatementJAXClinch, Ware52 min
May 13, 3:22 PM EDTSpecial Weather StatementJAXBrantley, Pierce38 min
May 13, 3:35 PM EDTSpecial Weather StatementJAXCharlton25 min
May 13, 4:05 PM EDTSpecial Weather StatementJAXGlynn25 min
May 13, 7:03 PM EDTSpecial Weather StatementJAXClinch57 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning in 2017

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.