An upper level ridge dominated over the SE with a surface ridge axis south of the forecast area with a mean layer SW flow in place. A weak surface trough was over south Georgia, and this feature combined with the sea breezes over an unstable and moist airmass produced scattered severe storms during the afternoon and evening.
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.
An upper level ridge dominated over the SE with a surface ridge axis south of the forecast area with a mean layer SW flow in place. A weak surface trough was over south Georgia, and this feature combined with the sea breezes over an unstable and moist airmass produced scattered severe storms during the afternoon and evening.
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 22, 12:34 PM EST, 4 hours 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 134 PM EDT MON JUN 22 2015 .NEAR TERM /THRU TUESDAY/... UPPER RIDGE REMAINS OVER THE SOUTHEAST IN THE NEAR TERM...WITH SURFACE HIGH PRESSURE RIDGE CENTERED JUST S OF FORECAST AREA. HOT TEMPS WITH DWPTS UPR 60S/LWR 70S SUPPORTING CONSIDERABLE INSTABILITY...WITH CAPE VALUES UP TO 3000 J/KG. STILL ANTICIPATE SCATTERED SHOWERS/T-STORMS TO DEVELOP ALONG WEST COAST SEA BREEZE...AND ALONG EAST COAST SEA BREEZE AS IT PRESSES INLAND TOWARD I-95 WITH DECENT MOISTURE CONVERGENCE...W TO SW WINDS MEETING SE WINDS. EFFECT OF LOW-LEVEL DRY AIR PER 12Z JAX SOUNDING SHIFTING EAST OF AREA WITH CUMULUS AND HIGHER SFC DWPTS OVER WRN PARTS OF NASSAU/DUVAL CO'S. TOWARD 00Z...ANTICIPATE SOME DEVELOPMENT OVER WEAK SURFACE TROF OVER SCTRL GA THAT COULD AFFECT OUR NWRN COUNTIES...WHILE SEA BREEZES MERGE BETWEEN HWY 301 AND I-95 WITH POTENTIAL ENHANCEMENT OF T-STORM COVERAGE BY 00Z. ATMOSPHERIC CONDITIONS ARE QUITE FAVORABLE FOR STRONG WET MICROBURSTS FROM TALLER CORES...AS INDICATED BY HIGH FORECAST D-CAPE AND DIFFERENTIAL THETA-E VALUES...WHICH COULD LEAD TO SURFACE OUTFLOW WINDS UP TO 60 MPH. IN THE 00Z-03Z PERIOD...WILL HAVE LIKELY POPS HWY 301 WEST AND NW TO POTENTIAL ACTIVITY AHEAD OF SCTRL GA SURFACE TROF. AFTER 03Z...SHOW GRADUAL DECREASE IN COVERAGE...WITH VERY LITTLE LEFT AFTER 09Z. LOW TEMPS WILL BE IN THE MID 70S INLAND...UPR 70S COAST. FOR TUESDAY...SOME UNCERTAINTY AS TO COVERAGE...BUT WILL CONTINUE CHANCE POPS WITH SEA BREEZES AND SCTRL GA SURFACE TROF. ANOTHER HOT DAY WITH TEMPS IN MID/UPR 90S INLAND...LOW 90S COAST...AFTERNOON HEAT INDEX VALUES SIMILAR TO TODAY WITH 103-107 INLAND...AROUND 100 COAST. .SHORT TERM /WEDNESDAY AND THURSDAY/... A WEAKNESS IN THE SUBTROPICAL RIDGE ALOFT WITH A MOIST SW FLOW WILL CONTINUE TO PRODUCE DAILY SCATTERED CONVECTION. SEABREEZES WILL MERGE LATE AFTERNOON NEAR THE I-95 CORRIDOR. TEMPERATURES WILL REMAIN A FEW DEGREES ABOVE NORMAL WITH POPS NEAR NORMAL. .LONG TERM /FRIDAY THROUGH MONDAY/... PATTERN CHANGES AS UPPER RIDGE ACROSS THE SOUTH WEAKENS NEXT WEEKEND AS AN AMPLIFYING TROUGH DEVELOPS OVER THE EASTERN U.S. A MOIST SW FLOW WILL PERSIST AS A SURFACE TROUGH REMAINS OVER CENTRAL GA. UPPER IMPULSES WILL HELP ENHANCE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS EACH DAY POSSIBLY EXTENDING INTO THE OVERNIGHT HOURS GIVEN UPPER SUPPORT. TEMPERATURES WILL RETURN TO NEAR NORMAL LEVELS WITH POPS AT OR ABOVE AVERAGE. && .AVIATION...VFR CONDITIONS EXPECTED...EXCEPT LOWER CONDITIONS VICINITY OF TSRA. CONTINUING VCTS IN EASTERN TAF SITES...BUT INCLUDED A TEMPO GROUP 22Z-02Z KVQQ AND KGNV WHERE THERE MAY BE GREATER COVERAGE OF TSRA DURING THAT PERIOD. ALSO INDICATED POTENTIAL FOR STRONG OUTFLOW WINDS WITH STRONGER TSRA. ENVIRONMENT REMAINS VERY FAVORABLE FOR STRONG WET MICROBURSTS FROM TALLER STORMS. ACTIVITY SHOULD DECREASE IN COVERAGE AFTER 02Z AND BE MAINLY W AND NW OF TAF SITES. && .MARINE...SOUTH TO SOUTHWEST FLOW WILL GENERALLY PREVAIL IN THE NIGHTTIME AND MORNING PERIODS WITH SOUTHEASTERLY WINDS EACH AFTERNOON WITH THE SEABREEZE. NOCTURNAL SOUTHERLY SURGES WILL BRING POTENTIAL FOR CAUTION LEVEL WINDS OF 15 TO 20 KNOTS IN THE EVENING PERIODS. RIP CURRENTS: LOW RISK THROUGH TUESDAY. && .PRELIMINARY POINT TEMPS/POPS... AMG 74 96 74 97 / 60 40 20 40 SSI 79 91 78 90 / 40 30 30 30 JAX 75 96 76 95 / 30 30 30 30 SGJ 77 92 75 89 / 30 20 20 30 GNV 73 96 74 95 / 60 40 40 40 OCF 74 95 75 95 / 60 40 40 40 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && WOLF/PETERSON/WALSH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 518 AM EDT MON JUN 22 2015 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-230930- 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- 518 AM EDT MON JUN 22 2015 ...ISOLATED STRONG TO SEVERE STORMS POSSIBLE LATE THIS AFTERNOON INTO THIS EVENING... ...WIDESPREAD HEAT INDICES AROUND 105 DEGREES AGAIN TODAY... 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. THUNDERSTORMS WILL BECOME SCATTERED TO POSSIBLY NUMEROUS LATE THIS AFTERNOON THROUGH THIS EVENING WITH THE HIGHEST CONCENTRATION OF STORMS EXPECTED TO OCCUR GENERALLY BETWEEN HIGHWAY 301 AND THE I-95 CORRIDOR. A FEW SEVERE STORMS WILL BE POSSIBLE WITH GUSTY WINDS AROUND 60 MPH ALONG WITH SMALL HAIL AND FREQUENT LIGHTNING. SLOWER MOVING STORMS WILL PRODUCE LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... HEAT INDEX VALUES NEAR 105 DEGREES EACH AFTERNOON. SCATTERED MAINLY AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED EACH DAY. .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. JDS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 552 PM EDT MON JUN 22 2015 GAZ164-165-222230- INLAND CAMDEN GA-CHARLTON GA- 552 PM EDT MON JUN 22 2015 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CAMDEN AND NORTHEASTERN CHARLTON COUNTIES UNTIL 630 PM EDT... AT 552 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES NORTHEAST OF HOMELAND...OR 8 MILES NORTHEAST OF FOLKSTON. THIS STORM WAS NEARLY STATIONARY. HAIL UP TO NICKEL SIZE IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. LOCATIONS IMPACTED INCLUDE... TARBORO. PRECAUTIONARY/PREPAREDNESS ACTIONS... REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 3093 8205 3110 8189 3108 8169 3079 8184 TIME...MOT...LOC 2152Z 308DEG 2KT 3094 8194 PETERSON
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
558 PM EDT MON JUN 22 2015
FLZ024-222230-
INLAND NASSAU FL-
558 PM EDT MON JUN 22 2015
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL NASSAU COUNTY UNTIL
630 PM EDT...
AT 558 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BRYCEVILLE...OR 11 MILES SOUTHWEST OF CALLAHAN...MOVING NORTH AT 10
MPH.
HAIL UP TO NICKEL SIZE IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.
THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF WEST CENTRAL NASSAU
COUNTY.
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 3040 8195 3040 8204 3041 8204 3042 8203
3044 8204 3045 8203 3046 8203 3047 8202
3051 8201 3052 8202 3056 8201 3055 8190
TIME...MOT...LOC 2158Z 190DEG 10KT 3045 8198
NELSONSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
603 PM EDT MON JUN 22 2015
FLZ023-030-222230-
BAKER FL-UNION FL-
603 PM EDT MON JUN 22 2015
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BAKER AND NORTH
CENTRAL UNION COUNTIES UNTIL 630 PM EDT...
AT 603 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
OLUSTEE...OR 10 MILES NORTH OF LAKE BUTLER...MOVING NORTH AT 15 MPH.
HAIL UP TO NICKEL SIZE IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.
LOCATIONS IMPACTED INCLUDE...
SANDERSON AND OLUSTEE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3029 8246 3028 8222 3010 8232 3010 8246
3012 8245 3013 8246
TIME...MOT...LOC 2203Z 198DEG 14KT 3016 8238
NELSONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
607 PM EDT MON JUN 22 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM TSTM WND DMG 6 E SUWANNEE SPRINGS 30.40N 82.84W
06/22/2015 HAMILTON FL LAW ENFORCEMENT
SEVERAL TREES WERE BLOWN DOWN ALONG HIGHWAY 41 WITHIN THE
GENOA CIITY LIMITS.
&&
AENYEDISPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
612 PM EDT MON JUN 22 2015
FLZ020-021-222245-
HAMILTON FL-SUWANNEE FL-
612 PM EDT MON JUN 22 2015
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN HAMILTON AND NORTHEASTERN
SUWANNEE COUNTIES UNTIL 645 PM EDT...
AT 611 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
BELMONT...OR 7 MILES NORTHEAST OF SUWANNEE SPRINGS...MOVING NORTHEAST
AT 10 MPH.
HAIL UP TO NICKEL SIZE IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.
LOCATIONS IMPACTED INCLUDE...
SUWANNEE SPRINGS AND BELMONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3060 8277 3060 8272 3057 8271 3056 8273
3053 8271 3053 8273 3052 8272 3049 8270
3048 8270 3047 8268 3043 8267 3032 8288
3039 8304
TIME...MOT...LOC 2211Z 211DEG 7KT 3046 8283
NELSONSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
612 PM EDT MON JUN 22 2015
GAZ135-222300-
APPLING GA-
612 PM EDT MON JUN 22 2015
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN APPLING COUNTY UNTIL 700
PM EDT...
AT 612 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
PLANT HATCH...MOVING SOUTHEAST AT 5 MPH.
HAIL UP TO NICKEL SIZE IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE.
LOCATIONS IMPACTED INCLUDE...
BAXLEY...PLANT HATCH AND PINE GROVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3193 8230 3194 8229 3194 8227 3192 8225
3191 8221 3185 8214 3173 8245 3184 8248
3184 8243 3191 8243 3194 8237 3193 8232
3194 8231 3195 8231
TIME...MOT...LOC 2212Z 329DEG 5KT 3187 8234
PETERSONThe Jacksonville radar (KJAX), 71 km away, was scanning. The volume nearest the first event began at 22:12 UTC.
4 thunderstorm wind. Local standard time, as filed.
A large tree was blown down and blocking interstate 95 southbound.
Asbury Church Road has some trees down. The cost of damage was estimated for the event to be included in Storm Data.
Altamaha School Road has some trees blown down. The cost of damage was estimated.
Howell Road had a tree down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2015Every state in 2015This day in weather historyWarnings in Georgia, 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: 583467, 583468, 583470, 583466.