A rain band formed across the area on the west side of TS Alberto. This band interacted with diurnal instability and upper level lift which combined to produce isolated severe storms as the band lifting NNE across the local area.
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 rain band formed across the area on the west side of TS Alberto. This band interacted with diurnal instability and upper level lift which combined to produce isolated severe storms as the band lifting NNE across the local area.
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 May 28, 1:09 PM EST, 3 hours 19 minutes earlier.
Area Forecast Discussion
National Weather Service Jacksonville FL
209 PM EDT Mon May 28 2018
.NEAR TERM /TONIGHT-TUESDAY/...
Rest of this afternoon...Forecast still on track to have Rain Band
with numerous showers and storms across inland NE FL and inland
SE GA will continue to move North and Northeast and Isolated
storms in this band still expected to have the potential to become
strong/severe with gusty winds of 40-60mph and still enough
rotation to produce isolated tornadoes from the Suwannee River
Valley Northward across inland SE GA this afternoon. Average
rainfall amounts expected to range from 0.50"-1.00" while locally
heavier storms with rainfall amounts around 2 inches likely and
this is despite the faster storm motion since some "training" will
be possible in the North-South oriented rain band.
Tonight...Evening shower/storm activity mainly over inland areas
will slowly dissipate after sunset, while lingering scattered to
numerous showers will remain possible on the East side of northward
moving Alberto, with activity continuing over inland SE GA and
the Suwannee River Valley. Rainfall totals of another 0.25"-0.50"
possible overnight in these areas. Further east along the I-95
corridor and Atlantic Coastal counties expecting just isolated
shower activity possible during the overnight hours. Muggy
overnight lows in the 70s expected again.
Tuesday...As steering flow becomes SW around Alberto across
NE FL/SE GA and moist plume of tropical airmass rotates across the
region expecting daytime heating into the mid/upper 80s to once
again trigger numerous showers and storms by the afternoon hours
and with the SW steering flow better chances for these storms to
reach the beaches. Any lingering tornado threat will be limited
but gusty winds of 40-60 mph will be possible in isolated strong
activity.
.SHORT TERM.../Tuesday night through Friday/...
Remnants of Alberto should be well to the Northwest Tuesday night,
with high pressure ridge building to the East. This pattern will
continue the moist Southerly flow. So, while most convection will
dissipate Tuesday evening with loss of daytime heating can not rule
out showers continuing into the night. For Wednesday into Thursday,
the ridge will continue to build across from the East, helping to
cut off the moist flow, but diurnal instability should be enough to
generate afternoon convection. The high moves to the Southeast
Friday, as a cool front dips into the Southeastern US. The resultant
West Southwest flow will limit moisture pulling into region, but frontal
convergence coupled with diurnal instability should generate
afternoon convection, but coverage may be limited.
Temperatures will trend near to slightly above normal this period.
&&
.LONG TERM.../Friday night through Sunday/...
Near stationary front will remain over Southeast US this period,
with surface high pressure to the South. This pattern will result in
a continued West Southwest flow. A series of waves are expected to
develop and move through the base of the frontal trough, which could
enhance daily diurnal convection this period.
Temperatures will trend near to slightly above normal this period.
&&
.AVIATION...
A band of storms, along with scattered popups, will move through
the region from the south bringing showers, thunderstorms, reduced
ceilings, and reduced visibility with heavy precipitation. GNV
will be impacted the soonest, with storms affecting other inland
airfields later in the afternoon. Coastal airfields will have
reduced exposure to thunderstorms today. Winds will predominantly
be out of the southeast, with gusts diminishing in strength after
sunset. Ceilings will likely drop to IFR levels overnight with the
southernmost airfields, GNV and SGJ, as the most likely sites to
be impacted.
&&
.MARINE...
Latest Hi-res model runs and local Wave model pushed nearshore
winds to SE/S around 20 knots and nearshore waves into the 5-7 ft
and have upgraded all waters to SCA conds for today, this in
agreement with nearshore buoys (41008,41112,41117) which are
already into the 5-6 ft range by 12z. Otherwise forecast remains
on track for SE-S winds 20-25 knots today becoming South tonight
at 15-20 knots with more slowly subsiding trend on Tuesday as
Alberto pulls further away from the local waters.
High pressure will be East of the region Tuesday night through
Thursday, with winds just below advisory criteria Tuesday night.
Area waters will be between high pressure to the South and a trough
of low pressure over the Southeastern US through the weekend. Winds
could approach advisory criteria Saturday night.
Rip Currents: Morning breaker heights in the 3-5 ft from reports
along the NE FL coast with a few as high as 6 feet, so along with
moderate SE-S flow, expect High Risk of Rip Currents today.
&&
.HYDROLOGY...
Locally heavy rainfall with additional 1-3 inches possible today
and tomorrow in the heaviest storms will produce temporary and
localized flooding problems while overall average rainfall amounts
will be close to one inch which should keep most River Basins
below flood stage with Action Stage levels expected in the Santa
Fe, St. Marys and Altamaha River Basins early this week.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 72 87 71 85 / 40 60 20 70
SSI 76 83 76 83 / 20 40 20 50
JAX 72 88 72 88 / 30 60 20 50
SGJ 73 86 72 85 / 30 60 20 50
GNV 72 86 71 85 / 40 70 20 60
OCF 72 86 71 86 / 30 80 30 60
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through late tonight for Coastal Duval-
Coastal Flagler-Coastal Nassau-Coastal St. Johns.
GA...High Rip Current Risk through late tonight for Coastal Camden-
Coastal Glynn.
AM...Small Craft Advisory until 6 PM EDT Tuesday for 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.
Small Craft Advisory until 6 AM EDT Tuesday for 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.
&&
Hess/CorlessSpecial Weather Statement National Weather Service Jacksonville FL 459 PM EDT MON MAY 28 2018 FLZ031-032-036-037-282145- Putnam FL-Alachua FL-Bradford FL-Clay FL- 459 PM EDT MON MAY 28 2018 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL ALACHUA...EASTERN BRADFORD...NORTHWESTERN PUTNAM AND WESTERN CLAY COUNTIES UNTIL 545 PM EDT... At 459 PM EDT, Doppler radar was tracking a strong thunderstorm over Melrose, moving north at 35 mph. Wind gusts of 40 to 55 mph can be expected along with possible minor wind damage. Locations impacted include... Starke, Keystone Heights, Melrose, Middleburg, Lake Geneva, Camp Blanding, Melrose Landing, Orange Heights, Kingsley and Waldo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 2962 8197 2967 8219 3013 8211 3006 8174 TIME...MOT...LOC 2059Z 196DEG 31KT 2973 8206 ENYEDI
Special Weather Statement
National Weather Service Jacksonville FL
502 PM EDT MON MAY 28 2018
GAZ133>135-282130-
Bacon GA-Appling GA-Jeff Davis GA-
502 PM EDT MON MAY 28 2018
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL BACON...APPLING AND
NORTHEASTERN JEFF DAVIS COUNTIES UNTIL 530 PM EDT...
At 502 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northeast of Hazlehurst to 6 miles
north of Bristol. Movement was north at 20 mph.
Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Baxley, Graham, Surrency, Plant Hatch and Pine Grove.
LAT...LON 3197 8243 3190 8219 3191 8213 3189 8212
3190 8211 3186 8212 3183 8206 3180 8211
3177 8209 3177 8213 3147 8214 3153 8224
3152 8224 3194 8259 3196 8256 3195 8249
3195 8248 3196 8250
TIME...MOT...LOC 2102Z 200DEG 15KT 3194 8255 3153 8223
SANDRIKSpecial Weather Statement
National Weather Service Jacksonville FL
508 PM EDT MON MAY 28 2018
FLZ022-023-030-036-282200-
Columbia FL-Baker FL-Union FL-Alachua FL-
508 PM EDT MON MAY 28 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL ALACHUA...
SOUTHWESTERN BAKER...WESTERN UNION AND SOUTHEASTERN COLUMBIA COUNTIES
UNTIL 600 PM EDT...
At 508 PM EDT, Doppler radar was tracking a strong thunderstorm over
Upland Pines, or near Worthington Spring, moving north at 35 mph.
Wind gusts of 40 to 50 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Lake City, Worthington Spring, Worthington Springs, Palestine
Community, Upland Pines, Groves, Providence, Five Points, Watertown
and Lulu.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3037 8266 3036 8234 2989 8243 2990 8262
3036 8268
TIME...MOT...LOC 2108Z 183DEG 31KT 2996 8253
ENYEDIPRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
521 PM EDT MON MAY 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM TSTM WND GST KEYSTONE HEIGHTS 29.78N 82.03W
05/28/2018 M41 MPH CLAY FL AWOS
THE AIRPORT WEATHER OBSERVING STATION AT THE KEYSTONE
HEIGHTS AIRPORT MEASURED A PEAK SOUTH SOUTHWESTERLY WIND
GUST OF 41 MPH AS THUNDERSTORMS MOVED THROUGH.
&&
NELSONSpecial Weather Statement
National Weather Service Jacksonville FL
524 PM EDT MON MAY 28 2018
FLZ020-021-GAZ162-163-282215-
Hamilton FL-Suwannee FL-Clinch GA-Echols GA-
524 PM EDT MON MAY 28 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SUWANNEE...
HAMILTON...ECHOLS AND WEST CENTRAL CLINCH COUNTIES UNTIL 615 PM
EDT...
At 523 PM EDT, Doppler radar was tracking a tropical band of showers
along a line extending from 6 miles west of Suwannee Springs to near
White Springs. Movement was north at 40 mph.
Wind gusts of 40 to 50 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.
Locations impacted include...
Jasper, Jennings, Statenville, Suwannee Springs, Mayday and
Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3063 8314 3079 8313 3080 8313 3081 8310
3083 8310 3083 8309 3085 8309 3085 8301
3086 8301 3087 8297 3088 8297 3083 8273
3033 8278 3031 8280 3036 8312 3063 8315
TIME...MOT...LOC 2123Z 180DEG 39KT 3040 8304 3034 8281
ENYEDISpecial Weather Statement
National Weather Service Jacksonville FL
527 PM EDT MON MAY 28 2018
FLZ025-031>033-125-282215-
Inland Duval FL-Bradford FL-Coastal Duval FL-Clay FL-
Inland St. Johns FL-
527 PM EDT MON MAY 28 2018
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BRADFORD...NORTHWESTERN
ST. JOHNS...CLAY AND SOUTHWESTERN DUVAL COUNTIES UNTIL 615 PM EDT...
At 527 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Camp Blanding to near
George's Lake. Movement was northeast at 30 mph.
Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Orange Park, Green Cove Springs, Middleburg, Mandarin, Fruit Cove,
Fleming Island, Cisco Gardens, Ortega, Oakleaf Plantation and
Bellair-Meadowbrook Terrace.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3011 8149 2984 8178 2984 8181 2983 8182
3007 8209 3043 8182
TIME...MOT...LOC 2127Z 211DEG 26KT 3007 8204 2987 8182
ENYEDIThe Jacksonville radar (KJAX), 82 km away, was scanning. The volume nearest the first event began at 21:27 UTC.
1 thunderstorm wind. Local standard time, as filed.
A former NWS employee estimated wind gusts of 70 mph near Lake Brooklyn.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2018Every state in 2018This day in weather historyWarnings in Florida, May 2018
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: 754833.