Damaging Winds in Florida, June 20, 2014

Name: Damaging Winds in Florida, June 20, 2014
Start: 2014-06-20T19:00
End: 2014-06-20T20:00
Location: Florida

June 20, 2014 · NWS JAX · 3 events in 1 county or zone

An inverted surface front over SE Georgia combined with increased moisture and instability sparked strong to severe afternoon thunderstorms along the sea breezes and outflow mergers.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $2,000
Crop damage: None recorded
Events: 3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS JAX wrote it up.

An inverted surface front over SE Georgia combined with increased moisture and instability sparked strong to severe afternoon thunderstorms along the sea breezes and outflow mergers.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jun 20, 1:32 PM EST, 5 hours 28 minutes earlier.

Area forecast discussion, Jun 20, 1:32 PM EST, 5 hours 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
232 PM EDT FRI JUN 20 2014

.SHORT TERM...THRU SUNDAY NIGHT...
THE EAST COAST SEA BREEZE HAS MIGRATED WEST OF INTERSTATE 95 THIS
AFTERNOON...AND STORMS WILL CONTINUE TO PUSH WESTWARD THROUGH THE
AFTERNOON INTO THE CENTRAL PART OF PENINSULA EVENTUALLY MEETING UP
WITH THE WEST COAST SEABREEZE BETWEEN U.S.301 AND I-75 THIS MID TO
LATE AFTERNOON. PRECIPITABLE WATER VALUES HAVE INCREASED ACROSS SE
GA THIS AFTERNOON AS MOISTURE BEGIN TO POOL AHEAD OF THE GA
INVERTED SFC TROF THAT IS ACROSS THE CENTRAL PART OF THE PEACH
STATE. THIS HAS ALLOWED TSTMS TO DEVELOP IN THIS REGION AS PWS
HAVE INCREASED TO 1.6 TO 1.8" ACROSS SE GA FROM 1.25" THIS
MORNING. THE CONVECTIVE ACTIVITY WILL GENERALLY WILL STEERING FROM
NORTH- NORTHEAST TO SOUTH-SOUTHWEST IN RESPECTIVE SEA BREEZE
CONVECTIVE LINES WITH 500-700MB STREAMLINE FLOW SHOWING THIS FLOW
WITH MEAN MID LEVEL RIDGE OVER MISSISSIPPI. THE DIURNAL ACTIVITY
SHOULD WANE CONSIDERABLY AND MARKEDLY DECREASE IN AREAL COVERAGE
BY MID EVENING AS DAYTIME HEATING DIMINISHES.

DURING THE WEEKEND...UPPER RIDGING OVER SOUTHEASTERN STATES IS
SUPPRESSED SOUTH BY WNW FLOW AROUND NEW ENGLAND/WRN ATLANTIC
UPPER TROF...WITH PERSISTENT SURFACE TROF OVER SCTRL GA AND
OFFSHORE FLOW SOUTH OF SURFACE TROF. THIS BOUNDARY AND SEA
BREEZES WILL FOCUS AFTERNOON/EVENING SHOWER/T-STORM DEVELOPMENT
EACH AFTERNOON. SOME UNCERTAINTY AS TO COVERAGE OF ACTIVITY
EACH DAY...AND KEEPING CHANCE POPS FOR NOW.

WESTERLY SURFACE FLOW WILL LEAD TO HOT AFTERNOONS...WITH HIGHS
IN MID 90S INLAND...LOW 90S COAST WITH NOT MUCH INLAND
PENETRATION OF EAST COAST SEA BREEZE. HEAT INDEX VALUES AROUND
100 DEGREES EXPECTED EACH AFTERNOON.

.LONG TERM....MONDAY THRU THURSDAY...
PATTERN CHANGES TO WESTERN ATLANTIC UPR RIDGE...WRN GULF COAST
UPPER TROF...AND SW FLOW OVER OUR FORECAST AREA FOR MUCH OF
NEXT WEEK. SURFACE RIDGE BECOMES RE-ESTABLISHED OVER NORTH-
CENTRAL FL...WITH ONSHORE FLOW NORTH OF RIDGE AXIS (WEAKEST
ACROSS OUR SRN COUNTIES UNDER RIDGE AXIS. MODEL GUIDANCE
MAINTAINS A CHANCE OF AFTERNOON/EVENING SHOWERS/T-STORMS EACH
DAY PRIMARILY WITH WEST COAST SEA BREEZE MOVING EASTWARD
ACROSS PENINSULA. HIGHS IN UPR 80S COAST TO LOWER 90S INLAND
EACH DAY...WITH OVERNIGHT LOWS LWR 70S INLAND TO MID 70S COAST.

&&

.AVIATION...
VFR CONDITIONS ANTICIPATED THROUGH THE TAF CYCLE. THE
EXCEPTION WILL BE AT KGNV...WHERE VCTS AND VCSH POSSIBLE AT THE
TERMINAL THIS MID TO LATE AFTERNOON WITH THUNDERSTORMS NEARBY.
ALSO PUT A TEMPO GROUP FOR WIND GUSTS TO 40 KTS AND BRIEF HEAVY
RAIN AT KGNV BETWEEN 19Z AND 23Z. VFR CONDITIONS WILL BE THE
GENERAL RULE OVERNIGHT WITH PATCHY FOG POSSIBLY DEVELOPING IN THE
I-75 CORRIDOR AND SUWANNEE VALLEY BETWEEN 09 AND 12Z.

&&

.MARINE...
ONSHORE WINDS HAVE DEVELOPED NEAR THE COAST THIS AFTERNOON WHEN THE
SEA BREEZE PUSHED WEST. WINDS SHIFT BACK TO THE WEST AFTER MIDNIGHT
WHEN THE SEA BREEZE'S INFLUENCE DISSIPATES. INCREASING SOUTH TO
SOUTHWEST WINDS THIS WEEKEND ALTHOUGH NOT STRONG ENOUGH TO WARRANT
HEADLINES. ISOLATED SHOWERS AND STORMS TOWARD DAYBREAK AND SATURDAY
BECOMING WIDELY SCATTERED TO SCATTERED SUNDAY.

HIGH PRESSURE BECOMES RE-ESTABLISHED OVER THE WATERS EARLY NEXT
WEEK WITH LIGHT SOUTH TO SOUTHWEST WINDS... WITH SOUTHEAST FLOW
NEARSHORE COMPONENT EACH AFTERNOON ASSOCIATED WITH THE SEA BREEZE.

RIP CURRENTS: LOW RISK IS EXPECTED THROUGH THE WEEKEND.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  71  96  73  94 /  20  30  40  30
SSI  76  91  76  91 /  10  30  30  30
JAX  71  95  74  93 /  10  40  40  40
SGJ  74  91  74  91 /  10  30  30  50
GNV  71  93  72  92 /  20  30  30  50
OCF  72  93  72  92 /  30  20  20  50

&&

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

WOLF/CORDERO

Hazardous weather outlook, Jun 20, 3:02 AM EST, 15 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
402 AM EDT FRI JUN 20 2014

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-210845-
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-
402 AM EDT FRI JUN 20 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 TO DEVELOP ACROSS THE INLAND
AREAS DURING THE LATE AFTERNOON INTO THE EARLY EVE. MOST OF THE
STORMS ARE EXPECTED TO BE FOCUSED BETWEEN U.S. HIGHWAY 301 AND
INTERSTATE 75. THE MAIN CONCERNS WILL BE STRONG AND GUSTY
WINDS...FREQUENT LIGHTNING...AND LOCALLY HEAVY RAINFALL.

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

SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED EACH DAY.
A FEW STORMS MAY BE STRONG.

.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.

In the hours before

Special weather statement, Jun 20, 1:55 PM EST, 5 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
255 PM EDT FRI JUN 20 2014

GAZ133-135-201945-
APPLING-JEFF DAVIS-
255 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR JEFF DAVIS AND
APPLING COUNTIES FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE
LIGHTNING VALID UNTIL 345 PM EDT...

AT 255 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 3 MILES NORTH OF GRAHAM...MOVING SOUTH
AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
HAZLEHURST...GRAHAM AND PINE GROVE THROUGH 345 PM EDT. HAIL UP TO
THREE QUARTER INCH IN DIAMETER...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 3175 8235 3178 8262 3192 8259 3194 8243
TIME...MOT...LOC 1855Z 352DEG 7KT 3187 8252

WOLF

Special weather statement, Jun 20, 2:27 PM EST, 4 hours 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
327 PM EDT FRI JUN 20 2014

GAZ132-133-202015-
COFFEE-JEFF DAVIS-
327 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR WESTERN JEFF
DAVIS AND NORTHERN COFFEE COUNTIES FOR STRONG WINDS...SMALL HAIL AND
EXCESSIVE LIGHTNING VALID UNTIL 415 PM EDT...

AT 327 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 7 MILES NORTH OF PRIDGEN...MOVING SOUTH
AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
PRIDGEN THROUGH 415 PM EDT. HAIL UP TO THREE QUARTER INCH IN
DIAMETER...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 3167 8273 3166 8298 3179 8295 3179 8290
      3179 8287 3182 8284 3184 8281 3183 8280
TIME...MOT...LOC 1927Z 348DEG 9KT 3179 8290

WOLF

Special weather statement, Jun 20, 3:34 PM EST, 3 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
434 PM EDT FRI JUN 20 2014

GAZ149-202100-
ATKINSON-
434 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR ATKINSON COUNTY
FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 500 PM EDT...

AT 434 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 6 MILES WEST OF PEARSON...MOVING SOUTH
AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND
PEARSON THROUGH 500 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND
GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
DAMAGE.

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

LAT...LON 3140 8302 3140 8286 3118 8283 3119 8305
      3124 8305 3127 8304 3128 8305
TIME...MOT...LOC 2034Z 008DEG 7KT 3131 8295

WOLF

Special weather statement, Jun 20, 4:50 PM EST, 2 hours 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
550 PM EDT FRI JUN 20 2014

GAZ152-164-202230-
BRANTLEY-CHARLTON-
550 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR BRANTLEY AND
CHARLTON COUNTIES FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 630 PM
EDT...

AT 550 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 4 MILES SOUTHEAST OF HICKOX...MOVING
SOUTH AT 10 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS
AROUND HICKOX AND WINOKUR THROUGH 630 PM EDT. HAIL UP TO THREE
QUARTER INCH IN DIAMETER AND GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED. 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...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 3110 8186 3109 8192 3105 8193 3104 8190
      3098 8192 3095 8189 3091 8192 3090 8190
      3084 8191 3089 8216 3121 8203 3117 8184
TIME...MOT...LOC 2150Z 013DEG 9KT 3110 8195

ALLEN

Special weather statement, Jun 20, 5:47 PM EST, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
647 PM EDT FRI JUN 20 2014

FLZ040-202330-
MARION-
647 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR MARION COUNTY
FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 730 PM EDT...

AT 647 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 3 MILES EAST OF LYNNE...MOVING WEST AT 5 MPH.
THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND SALT
SPRINGS...JUNIPER SPRINGS...MOSS BLUFF...LYNNE...WEIRSDALE...
SUMMERFIELD...SILVER SPRINGS SHORES...SANTOS...OCKLAWAHA AND LAKE
WEIR THROUGH 730 PM EDT. HAIL UP TO THREE QUARTER INCH IN DIAMETER
AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED. 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...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2935 8209 2936 8169 2915 8171 2895 8170
      2896 8212
TIME...MOT...LOC 2247Z 077DEG 5KT 2919 8186

ALLEN

Special weather statement, Jun 20, 6:14 PM EST, 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
714 PM EDT FRI JUN 20 2014

FLZ040-210000-
MARION-
714 PM EDT FRI JUN 20 2014

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR MARION COUNTY
FOR STRONG WINDS AND SMALL HAIL VALID UNTIL 800 PM EDT...

AT 714 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 6 MILES NORTHEAST OF FORT MCCOY...MOVING
SOUTH AT 5 MPH. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS
AROUND LAKE DELANCY...ORANGE SPRINGS...HOG VALLEY...FORT MCCOY AND
SALT SPRINGS THROUGH 800 PM EDT. HAIL UP TO THREE QUARTER INCH IN
DIAMETER AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED. 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...OR YOU CAN CALL THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE DIRECTLY AT 1-800-499-1594.

LAT...LON 2930 8198 2950 8202 2951 8196 2951 8184
      2949 8184 2949 8178 2943 8177 2943 8175
      2938 8174 2937 8173 2931 8171
TIME...MOT...LOC 2314Z 346DEG 6KT 2939 8188

ALLEN

The radar

The Jacksonville radar (KJAX), 128 km away, was scanning. The volume nearest the first event began at 00:04 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Marion

When: June 20, 7:00 PM EST
Where: Marion County, 0.69 mi S of Ft Mc Coy
Measured: 50 kt (58 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 29.360, -81.970

A tree and play equipment were blown down.

Thunderstorm Wind, Marion

When: June 20, 7:10 PM EST
Where: Marion County, 1.38 mi S of Silver Spgs
Measured: 45 kt (52 mph) estimated gust
Property damage: $2,000
Reported by: State Official
Coordinates: 29.200, -82.050

Power lines were blown down. The cost of damage was estimated for inclusion of the event in Storm Data.

Thunderstorm Wind, Marion

When: June 20, 8:00 PM EST
Where: Marion County, 0.92 mi SE of Ocala West
Measured: 50 kt (58 mph) estimated gust
Reported by: State Official
Coordinates: 29.210, -82.120

Power lines were blown down. The time of the event was based on radar.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Florida in 2014 Every state in 2014 This day in weather history Warnings in Florida, June 2014

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 525400, 525402, 525401.