Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 149, NWS Jacksonville, FL

June 26, 2014Flagler County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 26, 2014, 6:05 PM EDT for Flagler County, Florida. It was in force for 40 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 26, 2014, 6:05 PM EDT (22:05 UTC)
Expired
Jun 26, 2014, 6:45 PM EDT
In force
40 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 22:07 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.1 hours before the alert went out and 135 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, Cape Canaveral, FL at 12:00Z on 2014-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 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, Cape Canaveral, FL at 12:00Z on 2014-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
244 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
41 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 26, 2:04 PM EDT, 4 hours 1 minute earlier.

Area forecast discussion, Jun 26, 2:04 PM EDT, 4 hours 1 minute before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
204 PM EDT THU JUN 26 2014

.SHORT TERM...TONIGHT THRU SAT NIGHT...

WATER VAPOR IMAGERY SHOWS MID/UPPER RIDGE IS PUSHING NEWD OVER THE
FL PANHANDLE INTO CENTRAL GA AS A TROUGH MOVES INTO THE ATLC. A
SFC TROUGH IS ANALYZED FROM THE MID ATLC COAST S INTO NE FL.
CONVECTIVE ACTIVITY WILL BE MORE SUBDUED TODAY WITH MID LEVEL
RIDGING...AND ATLC SEA BREEZE WILL STRUGGLE TO MOVE INLAND.
ISOLATED SHOWERS ARE CROSSING THE BIG BEND INTO THE I-75 CORRIDOR
EARLY THIS AFTN. HRRR SHOWS ACTIVITY INCREASING AFTER 3 PM OVER
THE SRN TIER AND MARCHING EWD. THE BEST CHANCES WILL BE WHEN THE
SEA BREEZES CONVERGE OVER THE ERN COUNTIES LATE AFTN/EARLY EVE IN
THE 5-8 PM TIME FRAME. WET MICROBURSTS WILL BE MAIN CONCERN.

UPR RIDGING SETTLES OVER THE AREA FRI/SAT. LOW-LEVEL NW FLOW WILL
KEEP EAST COAST SEA BREEZE GENERALLY E OF I-95 CORRIDOR. MOIST
AIRMASS WILL SUPPORT WIDELY SCATTERED AFTERNOON/EARLY EVENING
SHOWERS/T-STORMS BOTH DAYS. WESTERLY LOW-LEVEL FLOW FAVORS
ABOVE NORMAL TEMPS...WITH HIGH TEMPS IN MID 90S WELL INLAND...
LOW 90S NEAR COAST...LOWS BOTH NIGHTS LOW 70S INLAND...MID 70S
COAST. HEAT INDEX VALUES AROUND 100 DEGREES EXPECTED EACH AFTERNOON.

.LONG TERM....SUN THRU WED...

GFS/ECM SHOW WEAK SURFACE LOW MOVING OFF COAST OF SC SUNDAY...
THEN DIFFER ON FUTURE OF WEAK SYSTEM. ECM MOVES IT SW TOWARD
AND OVER NRN FL...WHILE NEW GFS STALL WEAK LOW OVER GULF STREAM
SUN/MON. OTHER MODELS HAVE DIFFERENT SOLUTIONS. FOR THIS FORECAST
GENERALLY FOLLOWED WEAKER GFS SOLUTION OF STALLED WEAK LOW WELL
OFFSHORE OF GA...WITH WEAK EAST TO NORTH FLOW ACROSS OUR AREA
AROUND CIRCULATION.

OTHERWISE...UPPER RIDGE REMAINS OVER SOUTHEASTERN STATES...WITH
MOIST AIRMASS ACROSS OUR AREA WHICH SHOULD SUPPORT SCATTERED
SHOWERS/T-STORMS EACH AFTERNOON. ABOVE NORMAL TEMPS SHOULD
CONTINUE...THOUGH SLIGHT COOLING TO AROUND NORMAL POSSIBLE EASTERN
COUNTIES IF WEAK OFFSHORE LOW GENERATES NE ONSHORE FLOW ALONG
SE GA/NE FL COASTLINE.

&&

.AVIATION...
PREVAILING VFR EXPECTED...EXCEPT IN VICINITY OF TSRA WHICH ARE
FORECAST FOR LATE AFTN BEGINNING 21Z THROUGH 01Z. A SEA BREEZE
WILL SHIFT WINDS BRIEFLY TO SE AT CRG AND SSI. THE SBRZ MAY REACH
JAX AROUND 23Z.

&&

.MARINE...
A GENERAL OFFSHORE FLOW IS EXPECTED THROUGH SATURDAY AS SFC RIDGE
REMAINS S OF THE AREA. MODELS CONTINUE TO DEPICT A TROUGH/SFC LOW
E OF ST AUGUSTINE. THIS WOULD PRODUCE A POTENTIALLY STRONGER N
TO NE FLOW OVER THE AREA SUN THROUGH EARLY NEXT WEEK...BUT DUE TO
UNCERTAINTY WILL SHOW ONSHORE WINDS BELOW HEADLINE CRITERIA.

RIP CURRENTS: LOW RISK THROUGH FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  71  93  70  94 /  20  20  20  20
SSI  76  90  76  92 /  20  20  20  20
JAX  73  93  73  95 /  30  30  30  30
SGJ  75  90  75  92 /  30  30  30  30
GNV  72  93  71  95 /  30  30  30  20
OCF  72  93  71  95 /  30  30  30  20

&&

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

TRABERT/WOLF/
Hazardous weather outlook, Jun 26, 4:36 AM EDT, 13 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
436 AM EDT THU JUN 26 2014

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-GAZ132>136-
149>154-162>166-270915-
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-
436 AM EDT THU JUN 26 2014

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED BY MID TO LATE THIS AFTERNOON
AND EVENING. AN ISOLATED STORM MAY BECOME STRONG WITH LOCALLY STRONG
WIND GUSTS AND FREQUENT LIGHTNING. THE BEST CHANCES OF STORMS WILL
BE ACROSS THE SOUTHEAST ZONES AND COASTAL AREAS. STORM MOTION WILL
BE SOUTHEAST TO SOUTH AROUND 15 MPH. THUNDERSTORM ACTIVITY MAY LINGER
THROUGH MIDNIGHT...THEN DISSIPATE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED EACH DAY.
A FEW STORMS MAY BE STRONG WITH GUSTY WINDS AND FREQUENT LIGHTNING.
AN INCREASE IN THUNDERSTORM ACTIVITY IS POSSIBLE MONDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...STORM SPOTTERS
ARE ENCOURAGED TO REPORT SIGNIFICANT OR SEVERE WEATHER REPORTS.

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, Jun 26, 5:33 PM EDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
533 PM EDT THU JUN 26 2014

GAZ133-135-262215-
APPLING-JEFF DAVIS-
533 PM EDT THU JUN 26 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR JEFF DAVIS AND
APPLING COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL
615 PM EDT...

AT 534 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 5 MILES NORTHEAST OF GRAHAM...MOVING SOUTHEAST
AT 15 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND
HAZLEHURST...GRAHAM...PLANT HATCH...PINE GROVE...SURRENCY AND BAXLEY
THROUGH 615 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY
WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
DAMAGE. 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 3194 8233 3194 8228 3191 8222 3191 8213
      3189 8212 3190 8211 3187 8210 3184 8206
      3180 8211 3177 8209 3177 8213 3169 8213
      3157 8219 3183 8262 3192 8265 3196 8257
      3195 8250 3198 8247
TIME...MOT...LOC 2134Z 307DEG 11KT 3189 8245

HESS
Special weather statement, Jun 26, 5:45 PM EDT, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
545 PM EDT THU JUN 26 2014

FLZ038-262230-
FLAGLER-
545 PM EDT THU JUN 26 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR FLAGLER COUNTY
FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 630 PM EDT...

AT 545 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CENTERED OVER FLAGLER COUNTY...MOVING SOUTH AT 5 MPH.
THIS THUNDERSTORM WILL IMPACT MAINLY RURAL AREAS OF THE INDICATED
COUNTY THROUGH 630 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND
GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
DAMAGE.

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

LAT...LON 2931 8121 2928 8142 2929 8142 2949 8143
      2950 8135
TIME...MOT...LOC 2145Z 346DEG 4KT 2946 8139

TRABERT
Special weather statement, Jun 26, 5:47 PM EDT, 18 minutes before
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Local storm report, Jun 26, 5:58 PM EDT, 7 minutes before
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Local storm report, Jun 26, 6:02 PM EDT, 3 minutes before
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Local storm report, Jun 26, 6:03 PM EDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:21 PM EDTSpecial Weather StatementJAXPutnam24 min
Jun 25, 8:36 PM EDTSpecial Marine WarningJAX114 min
Jun 25, 8:38 PM EDTSpecial Weather StatementJAXFlagler52 min
Jun 25, 8:47 PM EDTSevere Thunderstorm WarningJAXFlagler, Putnam, Saint Johns41 min
Jun 25, 10:33 PM EDTAreal Flood AdvisoryJAXFlagler, Saint Johns87 min
Jun 26, 4:43 PM EDTSpecial Weather StatementJAXDuval32 min
Jun 26, 5:03 PM EDTSpecial Weather StatementJAXSaint Johns27 min
Jun 26, 5:09 PM EDTSpecial Weather StatementJAXPutnam36 min
Jun 26, 5:14 PM EDTSpecial Weather StatementJAXSaint Johns31 min
Jun 26, 5:18 PM EDTSevere Thunderstorm WarningJAXPutnam20 min
Jun 26, 5:28 PM EDTSevere Thunderstorm WarningJAXFlagler, Putnam, Saint Johns35 min
Jun 26, 5:29 PM EDTSpecial Marine WarningJAX2 hr
Jun 26, 5:36 PM EDTSevere Thunderstorm WarningJAXSaint Johns39 min
Jun 26, 5:45 PM EDTSpecial Weather StatementJAXFlagler45 min
Jun 26, 5:47 PM EDTSpecial Weather StatementJAXSaint Johns28 min
Jun 26, 6:07 PM EDTSpecial Weather StatementJAXMarion23 min
Jun 26, 6:33 PM EDTSpecial Weather StatementJAXDuval42 min
Jun 26, 6:51 PM EDTSpecial Weather StatementJAXDuval39 min
Jun 26, 7:01 PM EDTSpecial Weather StatementJAXLake29 min
Jun 26, 7:02 PM EDTSpecial Weather StatementJAXLake28 min
Jun 26, 4:14 PM EDTSpecial Weather StatementJAXBrantley31 min
Jun 26, 5:33 PM EDTSpecial Weather StatementJAXAppling42 min

Nearby

Severe Thunderstorm Warnings in Florida, 2014Every severe thunderstorm warning in 2014

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.