A surface ridge axis was south of the region with a dominate west coast sea breeze regime and deep moisture in place from the Gulf Coast region. Storm coverage focused toward the I-95 corridor in the late afternoon and evening where damaging downburst winds occurred.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS JAX wrote it up.
A surface ridge axis was south of the region with a dominate west coast sea breeze regime and deep moisture in place from the Gulf Coast region. Storm coverage focused toward the I-95 corridor in the late afternoon and evening where damaging downburst winds occurred.
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 21, 2:40 PM EST, 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 340 PM EDT SUN JUN 21 2015 ...INCREASED COVERAGE OF AFTERNOON/EVENING THUNDERSTORMS EXPECTED THIS WEEK... .NEAR TERM /THROUGH MONDAY/... ISOLATED TO WIDELY SCATTERED SHOWERS/STORMS ARE BEGINNING TO DEVELOP JUST TO THE WEST OF THE ATLANTIC SEABREEZE...AND IN CLOSE PROXIMITY TO A TROUGH OF LOW PRESSURE WHICH ID MOVING SOUTH TOWARD THE LOCAL AREA. A GRADUAL INCREASE IN STORM COVERAGE WILL OCCUR THROUGH THE AFTN ALONG THE GULF AND ATLANTIC SEABREEZES. THE TROUGH TO THE NORTH WILL CONTINUE TO PUSH SOUTH INTO THE AREA THIS EVENING...RESULTING IN ACTIVITY LINGERING A BIT LONGER THAN THE LAST FEW NIGHTS. AN ISOLATED STRONG STORM IS POSSIBLE...WITH GUSTY WINDS THE MAIN THREAT. CONVECTION WILL DIMINISH AFTER MIDNIGHT...WITH LOWS IN THE LOWER/MID 70S INLAND TO THE UPPER 70S COAST. MONDAY...THE SURFACE TROUGH WILL INTERACT WITH THE GULF AND ATLANTIC SEABREEZES WHICH WILL MERGE CLOSE TO THE I-95 CORRIDOR GIVEN W/SW FLOW TO GENERATE ANOTHER ROUND OF SCATTERED AFTN SHWRS/TSTMS. WITH SURFACE RIDGING PERSISTING TO THE SOUTH EXPECT ANOTHER HOT DAY...WITH HIGHS OF 95-100 INLAND AND AROUND 90 IMMEDIATE COAST. WITH AFTN DEWPOINTS IN THE UPPER 60S TO LOWER 70S...MAXIMUM HEAT INDICES OF 103-107 CAN BE EXPECTED. .SHORT TERM (MONDAY NIGHT THROUGH WEDNESDAY NIGHT)... A STAGNANT WEATHER PATTERN WILL PREVAIL AS THE ATLANTIC RIDGE AXIS REMAINS POSITIONED ACROSS CENTRAL FL...WITH A STATIONARY SURFACE TROUGH POSITIONED ACROSS SOUTH GA. SCATTERED CONVECTION IS EXPECTED TO INITIATE ALONG THE GULF COAST SEA BREEZE AND OVER INLAND SOUTHEAST GA ALONG THE SURFACE TROUGH TOWARDS THE NOON HOUR ON TUES AND WED...WITH ACTIVITY DEVELOPING ALONG THE PINNED ATLANTIC COAST SEA BREEZE BY THE MID-AFTERNOON HOURS. ACTIVITY WILL LIKELY MERGE ALONG I-95...WHERE STORMS MAY PULSE UP TO STRONG TO SEVERE LEVELS BY THE LATE AFTERNOON AND EARLY EVENING HOURS...WITH WET MICROBURSTS AND FREQUENT LIGHTNING BEING THE PRIMARY THREATS. CONVECTION MAY LINGER THROUGH THE MID-EVENING HOURS AS MESOSCALE BOUNDARIES AND PLENTY OF MOISTURE SUPPORT ADDITIONAL DEVELOPMENT PAST SUNSET. HIGHS WILL CONTINUE TO RUN ABOVE LATE JUNE CLIMO...WITH MID/UPPER 90S INLAND AND LOWER 90S AT THE COAST. MAX HEAT INDEX VALUES WILL APPROACH 105 DEGREES BEFORE CONVECTION DEVELOPS. LOWS WILL RANGE FROM THE MID 70S INLAND TO NEAR 80 AT THE BEACHES. .LONG TERM (THURSDAY THROUGH SUNDAY)... RIDGING ALOFT WILL PREVAIL THROUGH THURSDAY...WITH HEIGHTS THEN SLOWLY FALLING FRIDAY THROUGH NEXT WEEKEND AS TROUGHING DEVELOPS OVER THE EASTERN HALF OF THE NATION. LOW-LEVEL SOUTHWEST FLOW WILL CONTINUE AS SURFACE TROUGHING PERSISTS ACROSS SOUTHERN GA...WITH OUR LOCAL PRESSURE GRADIENT GRADUALLY TIGHTENING NEXT WEEKEND AS A SHORTWAVE DIGS SOUTHEASTWARD INTO THE TENNESSEE VALLEY. EXPECT A SIMILAR THUNDERSTORM PATTERN TO THE SHORT TERM PERIOD...WITH ACTIVITY INITIATING ALONG THE GULF COAST SEABREEZE AND OVER INLAND SOUTHEAST GA TOWARDS NOON...WITH ACTIVITY MERGING NEAR I-95 BY LATE AFTERNOON EACH DAY. AS THE GRADIENT TIGHTENS FRI-NEXT WEEKEND...ACTIVITY WILL LIKELY DEVELOP EARLIER IN THE MORNING OVER THE NORTHEAST GULF AND WILL PROPAGATE INLAND AT A FASTER RATE. HIGH- END SCATTERED COVERAGE IS EXPECTED EACH DAY...POSSIBLY NUMEROUS LATER THIS WEEK AND NEXT WEEKEND AS FORCING ALOFT STRENGTHENS. HIGHS WILL REMAIN IN THE MID/UPPER 90S INLAND ON WED...AND THEN WILL COOL SLIGHTLY BACK TO THE LOW/MID 90S BY FRIDAY AND NEXT WEEKEND AS CONVECTION INITIATES EARLIER IN THE DAY AND HEIGHTS ALOFT SLOWLY FALL. PERSISTENT SOUTHWEST FLOW WILL KEEP HUMIDITY LEVELS HIGH...KEEPING LOWS IN THE MID/UPPER 70S REGION-WIDE. && .AVIATION... VFR WILL PREVAIL FOR THE NEXT 24 HOURS. WITH LOW/MID END SCATTERED TSTM COVERAGE THIS AFTN...WILL USE VCTS INTO EARLY THIS EVENING. && .MARINE... OTHER THAN FOR AFTERNOON SEABREEZES...SOUTH TO SOUTHWEST WINDS 10-15 KNOTS WILL PREVAIL THROUGH MOST OF THE WEEK. CAUTION LEVEL WINDS WILL BE POSSIBLE OFFSHORE WITH NOCTURNAL SURGES. RIP CURRENTS: LOW RISK THROUGH MONDAY. && .PRELIMINARY POINT TEMPS/POPS... AMG 74 97 75 94 / 30 40 20 40 SSI 78 91 78 92 / 30 30 10 30 JAX 75 95 75 94 / 40 40 30 30 SGJ 77 89 77 91 / 30 30 10 20 GNV 74 95 73 96 / 40 40 40 40 OCF 75 95 74 96 / 30 50 40 60 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ALLEN/NELSON/WALKER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 301 AM EDT SUN JUN 21 2015 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-221000- 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- 301 AM EDT SUN JUN 21 2015 ...WIDESPREAD HEAT INDICES AROUND 105 DEGREES EACH AFTERNOON... ...ISOLATED STRONG TO SEVERE STORMS EACH AFTERNOON AND EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA...SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... HOT TEMPERATURES INTO THE 95 TO 100 DEGREE RANGE THIS AFTERNOON WILL PRODUCE WIDESPREAD HEAT INDICES AROUND 105 DEGREES AREA-WIDE. USE EXTRA CAUTION WHEN OUTDOORS IN THE HEAT. SCATTERED AFTERNOON AND EVENING STORMS WILL BE POSSIBLE WITH THE BEST CHANCES NEAR THE SEA BREEZE COLLISION ALONG THE I-95 CORRIDOR LATE IN THE DAY. STORM MOTION WILL GENERALLY BE TOWARDS THE EAST AROUND 10 MPH OR LESS...AND A FEW STORMS MAY BECOME STRONG TO SEVERE WITH GUSTY WINDS UP TO 50 TO 60 MPH ALONG WITH SMALL HAIL AND FREQUENT LIGHTNING. SLOWER MOVING STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... HEAT INDEX VALUES NEAR 105 DEGREES EACH AFTERNOON. SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED EACH AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED FOR THEIR LOCATIONS. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
242 PM EDT SUN JUN 21 2015
FLZ033-125-211915-
ST. JOHNS FL-COASTAL DUVAL FL-
242 PM EDT SUN JUN 21 2015
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL ST. JOHNS AND
SOUTHEASTERN DUVAL COUNTIES UNTIL 315 PM EDT...
AT 242 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM SAN PABLO TO DURBIN...AND
MOVING NORTHEAST AT 15 MPH.
GUSTY WINDS OF 35 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE
MINOR WIND DAMAGE.
LOCATIONS IMPACTED INCLUDE...
JACKSONVILLE...PONTE VEDRA BEACH...UNF...NEPTUNE BEACH...SAN PABLO...
PALM VALLEY...CRAIG FIELD...SAWGRASS...NOCATEE AND DURBIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3008 8136 3009 8136 3008 8137 3006 8149
3034 8154 3038 8146 3037 8146 3037 8145
3038 8144 3040 8144 3041 8141 3039 8142
3040 8139 3031 8139 3008 8134
TIME...MOT...LOC 1842Z 213DEG 12KT 3029 8146 3008 8144
ENYEDISPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
314 PM EDT SUN JUN 21 2015
FLZ125-212000-
COASTAL DUVAL FL-
314 PM EDT SUN JUN 21 2015
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN DUVAL COUNTY UNTIL
400 PM EDT...
AT 314 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR FORT CAROLINE TO NEAR
CRAIG FIELD...AND MOVING NORTH AT 5 MPH.
GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.
LOCATIONS IMPACTED INCLUDE...
JACKSONVILLE...UNF...NEPTUNE BEACH...SAN PABLO...LITTLE TALBOT
ISLAND...FORT CAROLINE AND CRAIG FIELD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3024 8152 3049 8158 3054 8149 3048 8141
3042 8141 3044 8142 3044 8144 3040 8140
3041 8143 3039 8145 3040 8147 3038 8148
3037 8145 3040 8142 3040 8141 3039 8141
3040 8139 3029 8139
TIME...MOT...LOC 1914Z 185DEG 6KT 3045 8153 3035 8147
ENYEDISPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
345 PM EDT SUN JUN 21 2015
FLZ124-125-212030-
COASTAL NASSAU FL-COASTAL DUVAL FL-
345 PM EDT SUN JUN 21 2015
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL NASSAU COUNTY UNTIL
430 PM EDT...
AT 345 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
LITTLE TALBOT ISLAND...OR 9 MILES SOUTH OF FERNANDINA BEACH...MOVING
NORTHEAST AT 10 MPH.
GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.
LOCATIONS IMPACTED INCLUDE...
FERNANDINA BEACH AND YULEE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 3048 8145 3049 8146 3047 8157 3070 8156
3071 8148 3068 8147 3066 8148 3066 8147
3070 8146 3070 8144 3052 8144 3055 8147
3059 8146 3057 8148 3054 8147 3057 8149
3057 8151 3048 8141
TIME...MOT...LOC 1945Z 217DEG 10KT 3053 8149
ENYEDIThe Jacksonville radar (KJAX), 26 km away, was scanning. The volume nearest the first event began at 19:53 UTC.
6 thunderstorm wind, 1 lightning. Local standard time, as filed.
Lightning struck a home on Briarcreek Drive that caused a fire that spread from the walls to the attic.
Trees were blown down near Interstate 10 and 185th Road in Falmouth. The time of damage was based on radar.
A large tree was blown down along Southeast 69th Terrace near the Belleview Sports Complex. The time of damage was based on radar.
A spotter near Belleview estimated gusts of 60-70 mph. His antenna was bent. The time of damage was based on radar.
Power lines were blown down near Silver Spring Shores.
A large tree was blown down on power lines.
Large trees were blown down at the Oak Tree Village Apartments and Campground. Four campers were damaged, and part of a roof was torn off of a duplex. No injuries were reported. The cost of damage was estimated for the event to be included in Storm Data.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2015Every state in 2015This day in weather historyWarnings in Florida, June 2015
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: 583103, 583108, 583110, 583113, 583109, 583111, 583112.