Alert archive / Florida / Special Weather Statements in 2017

Special Weather Statement, NWS Jacksonville, FL

January 6, 2017Gilchrist County, Florida

NWS Jacksonville, FL issued this special weather statement at Jan 6, 2017, 8:13 PM EST for Gilchrist County, Florida. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jan 6, 2017, 8:13 PM EST (01:13 UTC)
Expired
Jan 6, 2017, 8:45 PM EST
In force
32 min
Issued by
NWS Jacksonville, FL

County Gilchrist County, FL

The radar

The Moody AFB radar (KVAX), 141 km from the middle of the area, began a volume at 01:12 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 00:00Z, 1.2 hours before the alert went out and 149 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 00:00Z on 2017-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2017-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1053 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jan 6, 2:50 PM EST, 5 hours 23 minutes earlier.

Area forecast discussion, Jan 6, 2:50 PM EST, 5 hours 23 minutes before
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</head>
<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jan 6, 2:55 PM EST, 5 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSONVILLE FL
255 PM EST FRI JAN 6 2017

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-071200-
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-
255 PM EST FRI JAN 6 2017

...HARD FREEZE AND FREEZE WATCH SATURDAY NIGHT...

...GALE WATCH FOR THE OFFSHORE COASTAL WATERS SATURDAY THROUGH
SUNDAY...

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

.DAY ONE...TONIGHT...

WIDESPREAD RAIN WITH A FEW EMBEDDED THUNDERSTORMS ARE EXPECTED
TO DEVELOP TONIGHT. STRONG STORMS...WITH HAIL AND STRONG AND GUSTY
WINDS...ARE POSSIBLE NEAR AND WEST OF THE I-75 CORRIDOR OF NORTHEAST
FLORIDA AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

A HARD FREEZE IS EXPECTED ACROSS INLAND LOCATIONS SATURDAY AND SUNDAY
NIGHT...WITH A LIGHT FREEZE CLOSER TO THE COAST AND SOUTH OF I-10.
WIND CHILL INDICES WILL BE IN THE UPPER TEENS AND LOWER 20S AND
ADVISORIES MAY BE NEEDED.

AN ARCTIC FRONT WILL SWEEP ACROSS THE WATERS EARLY SATURDAY PRODUCING
STRONG NORTH TO NORTHWEST WINDS. A GALE WATCH IS IN EFFECT FOR THE
OFFSHORE WATERS BEGINNING SATURDAY AND A SMALL CRAFT ADVISORY
IN EFFECT FOR THE NEAR SHORE WATERS.

AN ELEVATED RISK OF RIP CURRENTS IS EXPECTED THIS WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

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, Jan 6, 8:13 PM EST, 0 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
813 PM EST FRI JAN 6 2017

FLZ035-070145-
Gilchrist FL-
813 PM EST FRI JAN 6 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN GILCHRIST COUNTY UNTIL
845 PM EST...

At 812 PM EST, Doppler radar was tracking a strong thunderstorm near
Manattee Road, or 8 miles northwest of Chiefland, moving northeast at
30 mph.

Nickel size...Excessive cloud-to-ground lightning and Wind gusts of
45 to 55 mph can be expected along with possible minor damage.

Locations impacted include...
Trenton, Bell and Fanning Springs.

LAT...LON 2963 8297 2964 8296 2967 8296 2977 8288
      2965 8265 2963 8266 2958 8276 2958 8286
      2959 8286 2959 8294 2958 8295 2961 8297
TIME...MOT...LOC 0112Z 227DEG 26KT 2955 8298

NELSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 6, 8:23 PM ESTSpecial Weather StatementJAXSuwannee52 min
Jan 6, 8:47 PM ESTSpecial Weather StatementJAXColumbia28 min
Jan 6, 9:09 PM ESTSpecial Weather StatementJAXBaker51 min
Jan 6, 9:43 PM ESTSpecial Weather StatementJAXDuval32 min
Jan 6, 9:54 PM ESTSpecial Marine WarningJAX66 min
Jan 7, 1:33 AM ESTSpecial Weather StatementJAXSuwannee42 min
Jan 7, 1:44 AM ESTSevere Thunderstorm WarningJAXHamilton, Suwannee31 min
Jan 7, 1:49 AM ESTSpecial Weather StatementJAXMarion41 min
Jan 7, 1:54 AM ESTSevere Thunderstorm WarningJAXColumbia, Hamilton, Suwannee31 min
Jan 7, 2:18 AM ESTSevere Thunderstorm WarningJAXMarion42 min
Jan 7, 2:26 AM ESTGale WarningJAX32 hr
Jan 7, 2:45 AM ESTFreeze WatchJAXBaker, Bradford, Gilchrist, Nassau, Suwannee, Union35 hr
Jan 7, 2:45 AM ESTFreeze WarningJAXBradford, Duval, Flagler, Gilchrist, Nassau30 hr
Jan 7, 2:45 AM ESTHard Freeze WatchJAXBaker, Nassau, Suwannee, Union35 hr
Jan 7, 2:45 AM ESTHard Freeze WarningJAXBaker, Gilchrist, Nassau, Suwannee, Union30 hr
Jan 7, 2:50 AM ESTWind Chill AdvisoryJAXBaker, Bradford, Duval, Gilchrist, Nassau, Suwannee and 1 more30 hr
Jan 7, 3:01 AM ESTSpecial Weather StatementJAXFlagler29 min
Jan 7, 3:19 AM ESTSpecial Marine WarningJAX41 min
Jan 7, 3:53 AM ESTSpecial Weather StatementJAXMarion37 min
Jan 6, 9:56 PM ESTSpecial Weather StatementJAXCamden49 min
Jan 7, 2:24 AM ESTSpecial Weather StatementJAXCharlton36 min

Nearby

Special Weather Statements in Florida, 2017Every special weather statement 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.