A surface trough was north of the area with a high pressure ridge axis south of the region. Storms fired along the sea breezes and resultant outflows over a moist and unstable air mass with light steering flow in place.
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 trough was north of the area with a high pressure ridge axis south of the region. Storms fired along the sea breezes and resultant outflows over a moist and unstable air mass with light steering flow in place.
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 26, 1:15 PM EST, 5 hours 48 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 215 PM EDT SAT JUN 26 2010 .SHORT TERM...SURFACE TROUGH EXTENDS SOUTHWEST ACROSS SOUTHEAST GEORGIA AND TOWARDS THE BIG BEND REGION OF NORTH FLORIDA. MEAN LAYER HIGH IS ANCHORED WELL OFFSHORE OVER THE ATLANTIC WATERS. CONVECTION IS BEGINNING TO FIRE UP OVER INTERIOR NORTHEAST FLORIDA IN VICINITY OF UPPER LEVEL SHORTWAVE TROUGH AS EXTENSIVE FOG/CLOUDS THIS MORNING HAS DELAYED ONSET OF CONVECTION ACROSS SOUTHEAST GEORGIA. THE INTERACTION OF TEMPERATURES IN THE 90S AND DEWPOINTS IN THE 70S HAS YIELDED SURFACE-BASED LI READINGS OF -5 TO -8. THUNDERSTORMS WILL CONTINUE TO RAMP UP AS THE AFTERNOON UNFOLDS AND ANTICIPATE THUNDERSTORMS TO INITIATE CLOSER TO THE ATLANTIC COAST AS THE ATLANTIC SEA BREEZE SLOWLY ADVANCES INLAND. THUNDERSTORMS WILL LIKELY FOCUS OVER THE INTERIOR THIS EVENING BEFORE DISSIPATING. IN FACT...THERE IS THE POTENTIAL FOR ISOLATED SHOWERS AND STORMS TO LINGER ACROSS INTERIOR SOUTHEAST GEORGIA WELL AFTER MIDNIGHT AS A WEAK SECONDARY IMPULSE ARRIVES FROM THE NORTHWEST. SUNDAY...NUMERICAL MODELS INDICATE ATMOSPHERIC MOISTURE WILL FURTHER INCREASE WITH PWATS EXCEEDING 2 INCHES. THIS IN CONCERT WITH WEAK...ALBEIT DEEP TROUGHINESS ACROSS THE AREA SHOULD TRANSLATE INTO NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS THE JACKSONVILLE COUNTY WARNING AREA DURING THE AFTERNOON. THE ATLANTIC SEA BREEZE WILL LIKELY NOT ADVANCE FAR INLAND...AND HAVE INCLUDED LIKELY POPS FOR JUST ABOUT EVERYWHERE. MAIN FORECAST CONCERNS WILL BE HEAVY RAINFALL AND FREQUENT RAINFALL. MONDAY...MEAN LAYER HIGH IS FORECAST TO BUILD WESTWARD-NORTHWESTWARD ACROSS THE FLORIDA PENINSULA. THIS FEATURE WILL ATTEMPT TO BRING INCREASING SUBSIDENCE INTO THE LOCAL AREA...ESPECIALLY INTO OUR EASTERN ZONES. HAVE INCLUDED CHANCE POPS...EXCEPT FOR LIKELY POPS FOR THE NORTHERN SUWANNEE RIVER VALLEY EXTENDING NORTH TO INCLUDE AREAS MAINLY WEST OF U.S. HIGHWAY 441. TUESDAY...ALTHOUGH ALEX IS FORECAST TO ADVANCE WESTWARD TOWARDS MEXICO...A PLUME OF TROPICAL MOISTURE IS FORECAST TO SURGE NORTHWARD ACROSS THE EASTERN GULF AND FLORIDA. THE INTERACTION OF INCREASING MOISTURE...A DEEPENING UPPER LEVEL TROUGH AND AN APPROACHING SURFACE FRONTAL BOUNDARY WILL LIKELY YIELD SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE ENTIRE FORECAST AREA. .LONG TERM...WILL CONTINUE A BLEND OF THE GFS/ECMWF MODELS FOR THE EXTENDED PERIOD AS GFS CONTINUES TO BE AGGRESSIVE WITH ENERGY PINCHING OFF FROM ALEX...THEN DEVELOPING INTO A CLOSED LOW IN THE NORTH- CENTRAL GULF. WILL CONTINUE A BLEND FOR THE EXTENDED PERIOD WITH MID TO HIGH RANGE SCT POPS EXPECTED. TEMPS RETURN TO NEAR CLIMO. && .AVIATION...ACTIVITY HAS DEVELOPED EARLY ACROSS THE REGION AND HAS THUS FAR AVOIDED THE TERMINALS WITH THE CLOSEST TSRA AT VQQ AND GNV. WILL CONTINUE TO ADVERTISE JUST VCTS FOR THE SHORT TERM THROUGH 20Z WITH INCREASING COVERAGE THEREAFTER. HAVE OPTED FOR GENERIC TEMPO'S FOR THE TERMINALS DEW TO MORE ACTIVITY THAN EARLIER ADVERTISED BY MODELS. COULD BE SOME LOCALIZED DOWNBURST ACTIVITY BUT SHOULD BE INFREQUENT ENOUGH TO PRECLUDE SIGNIFICANT WIND GUSTS IN THE 18Z SET. WILL INSTEAD HANDLE LOCALLY STRONGER ACTIVITY WITH AMENDMENTS. && .MARINE...LIGHT SOUTHEAST SEABREEZE FLOW WILL TRANSITION TO MORE ROBUST SOUTH TO SOUTHWEST FLOW THIS EVENING WITH A SURGE POSSIBLE. STILL...VALUES LOOK TO BE NO MORE THAN 15 KNOTS AND NO FLAGS AREA ANTICIPATED AT THIS TIME. THIS TREND WILL CONTINUE THROUGH EARLY NEXT WEEK WITH FLOW BECOMING MORE SOUTH AND SOUTHWEST THAN SOUTHEAST AND BRIEF EVENING SURGES CONTINUING BELOW FLAG CRITERIA. && .PRELIMINARY POINT TEMPS/POPS... AMG 74 93 74 93 / 30 60 30 60 SSI 77 90 77 91 / 10 50 30 40 JAX 73 92 74 91 / 20 60 30 50 SGJ 76 90 76 89 / 10 40 30 40 GNV 74 92 73 92 / 30 60 30 50 OCF 74 94 74 92 / 20 50 30 50 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ZAPPE/DEESE/WALKER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 452 AM EDT SAT JUN 26 2010 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-271200- 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- 452 AM EDT SAT JUN 26 2010 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING MAINLY OVER THE INLAND AREAS AREAS. STRONG AND GUSTY WINDS AND LIGHTNING WILL BE THE PRIMARY THREATS. LOCALLY HEAVY RAINFALL AMOUNTS OF OVER 2 INCHES ARE POSSIBLE DUE TO THE SLOW STORM MOTION. ABOVE NORMAL TEMPERATURES WILL LEAD TO HEAT INDEX READINGS NEAR 105 DEGREES DURING THE AFTERNOON. USE EXTRA CAUTION WHILE OUTSIDE TODAY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH THURSDAY... A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS IS EXPECTED BY THE LATTER HALF OF THE WEEKEND INTO EARLY NEXT WEEK. GUSTY WINDS AND LIGHTNING WILL BE THE PRIMARY THREATS. INCREASING MOISTURE LEVELS MONDAY THROUGH WEDNESDAY MAY LEAD TO LOCALLY HEAVY RAINFALL WITH STRONGER STORMS. .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. PP
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
729 PM EDT SAT JUN 26 2010
FLZ025-032-033-270030-
CLAY-DUVAL-ST. JOHNS-
729 PM EDT SAT JUN 26 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN CLAY...
NORTHWESTERN ST. JOHNS AND EASTERN DUVAL COUNTIES FOR STRONG WINDS...
SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 830 PM EDT...
AT 729 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE FROM WEST OF TALBOT ISLAND
TO SOUTH OF PENNEY FARMS...MOVING SOUTHEAST AT 15 MPH. THESE
THUNDERSTORMS WILL AFFECT TALLYRAND...SAN MARCO...RIVERSIDE...PENNEY
FARMS...ORTEGA...ORANGE PARK...OCEANWAY...LAKESIDE...DOWNTOWN
JACKSONVILLE AND DOCTORS INLET THROUGH 830 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 2983 8150 2984 8197 3057 8161 3054 8158
3053 8155 3057 8152 3056 8149 3052 8147
3051 8142 3049 8143 3047 8140 3042 8140
3041 8141 3039 8138 3028 8138
TIME...MOT...LOC 2329Z 309DEG 14KT 3049 8150 2986 8185
ENYEDISPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
731 PM EDT SAT JUN 26 2010
FLZ025-032-033-270030-
CLAY-DUVAL-ST. JOHNS-
731 PM EDT SAT JUN 26 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN CLAY...
NORTHWESTERN ST. JOHNS AND EASTERN DUVAL COUNTIES FOR STRONG WINDS...
FUNNEL CLOUDS AND EXCESSIVE LIGHTNING VALID UNTIL 830 PM EDT...
AT 729 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS ALONG A LINE FROM WEST OF TALBOT ISLAND
TO SOUTH OF PENNEY FARMS...MOVING SOUTHEAST AT 15 MPH. THESE
THUNDERSTORMS WILL AFFECT TALLYRAND...SAN MARCO...RIVERSIDE...PENNEY
FARMS...ORTEGA...ORANGE PARK...OCEANWAY...LAKESIDE...DOWNTOWN
JACKSONVILLE AND DOCTORS INLET THROUGH 830 PM EDT. EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. THERE WILL LIKELY BE
FUNNEL CLOUDS WITH THIS LINE OF STORMS. IF A WATERSPOUT OR TORNADO
IS SPOTTED...SEEK SHELTER IMMEDIATELY. 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 2983 8150 2984 8197 3057 8161 3054 8158
3053 8155 3057 8152 3056 8149 3052 8147
3051 8142 3049 8143 3047 8140 3042 8140
3041 8141 3039 8138 3028 8138
TIME...MOT...LOC 2329Z 309DEG 14KT 3049 8150 2986 8185
ENYEDIPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
735 PM EDT SAT JUN 26 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM TSTM WND DMG 3 NNE KINGSLAND 30.83N 81.64W
06/26/2010 CAMDEN GA NWS EMPLOYEE
RETIRED NWS EMPLOYEE REPORTED LARGE LIMBS AND SMALL PINE
TREES DOWN NEAR LAUREL ISLAND PARKWAY. WINDS ARE
ESTIMATED AT 60 TO 70 MPH.
&&
MTRABERTPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
746 PM EDT SAT JUN 26 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0740 PM HEAVY RAIN RIVERSIDE 30.31N 81.68W
06/26/2010 U0.00 INCH DUVAL FL EMERGENCY MNGR
STREET FLOODING WAS REPORTED IN RIVERSIDE.
&&
AENYEDIPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
748 PM EDT SAT JUN 26 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM TSTM WND DMG 4 N KINGSLAND 30.85N 81.67W
06/26/2010 CAMDEN GA NWS EMPLOYEE
RETIRED NWS EMPLOYEE REPORTS TWO LARGE PINE TREES SNAPPED
OFF ABOUT 10 FEET ABOVE THE GROUND NEAR THE HARRIETTS
BLUFF EXIT OF INTERSTATE 95. TIME ESTIMATED FROM RADAR.
&&
MTRABERTPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
758 PM EDT SAT JUN 26 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0755 PM FLOOD DOWNTOWN JACKSONVILLE 30.33N 81.66W
06/26/2010 DUVAL FL NEWSPAPER
STREET FLOODING WAS REPORTED IN DOWNTOWN JACKSONVILLE.
&&
ENYEDIThe Jacksonville radar (KJAX), 20 km away, was scanning. The volume nearest the first event began at 00:01 UTC.
1 lightning, 1 flash flood. Local standard time, as filed.
Lightning struck and damaged a building near Oak and Goodwin Streets in the Riverside Area. The building did not catch on fire but it was significantly damaged. The cost of damage was estimated.
A flash flood event developed across downtown Jacksonville when two storms collided over the area from the north and south. Around 740 pm, significant street flooding was reported in Riverside then by 755 pm significant flooding was reported in downtown Jacksonville. Areas near Hogans Creek experienced the most flooding. Jefferson Street was closed due to standing water 2 feet deep. At 805 pm, a resident of the Centennial Towers Apartments near Shands Hospital reported Hogans Creek had overflowed its banks and was approaching her apartment. Emergency Management officials reported that the maximum water height was 2 feet from the door of the first floor apartments.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2010Every state in 2010This day in weather historyWarnings in Florida, June 2010
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: 228290, 228289.