Severe Thunderstorm Warning 139, NWS Jacksonville, FL

Area Forecast Discussion
National Weather Service Jacksonville FL
804 PM EDT Tue May 23 2017

...TORNADO WATCH THROUGH 11 PM SE GA...

.UPDATE...Waves of showers and thunderstorms with discrete supercells
continued to track quickly to the NE across SE GA this evening
where a tornado watch was in effect. Convection will continue to
increase in coverage and intensity over the next couple hours
across NE Florida as a frontal zones across south- central GA
continues to settle farther south as upper leveling forcing
increases from the SW. Deep layer SW flow and very high moisture
content will continue to stream over the local area tonight
through Wed continuing waves of strong to severe storms and
locally heavy rainfall. Will continue to refrain from flood watch
at this time. Muggy and mild overnight conditions with lows in the
low/mid 70s.

&&

.AVIATION...Waves of showers and thunderstorms will impact the
terminals through the next 36 hrs brining at minimum MVFR
conditions. Severe storms will be possible, and capable of wind
gusts to 50 kts. Breezy SW winds will continue through the night
with gusts outside of convection near 25 kts at times.

&&

.MARINE...Small craft advisory conditions. Potential gale force
gusts Wed and Wed night.

Rip Currents: Low risk of rip currents.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  68  82  61  79 /  70 100  40  10
SSI  72  84  68  80 /  70 100  50  10
JAX  71  85  65  83 /  70 100  50  10
SGJ  71  84  67  82 /  70  90  60  20
GNV  70  82  65  81 /  80 100  60  10
OCF  72  81  67  82 /  80  90  60  20

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...Small Craft Advisory until 2 PM EDT Thursday 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-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.

&&

Enyedi/Nelson/McGinnis

Hazardous Weather Outlook
National Weather Service Jacksonville FL
334 AM EDT Wed May 24 2017

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-250745-
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-
334 AM EDT Wed May 24 2017

...WIDESPREAD HEAVY RAINFALL POSSIBLE THROUGH THIS EVENING...

...STRONG TO SEVERE THUNDERSTORMS POSSIBLE...

...SMALL CRAFT ADVISORY FOR THE COASTAL WATERS...

This Hazardous Weather Outlook is for Northeast Florida,
Southeast Georgia and the Adjacent Coastal Waters.

.DAY ONE...Today and Tonight...

Rounds of heavy showers and storms will move across the region
today. Widespread 2 to 3 inches of rain is expected across
northeast Florida with locally higher amounts in training bands.
Around 1 inch of rain is expected across southeast Georgia, with
locally higher amounts. Localized flooding is possible where
thunderstorms move over the same region, with urban and low lying
areas being more prone to localized flooding.

Strong to severe thunderstorms are possible through this evening,
with damaging wind gusts in excess of 60 mph, frequent cloud to
ground lightning strikes, and large hail possible within any
severe storms that develop.

A Small Craft Advisory is in effect for the coastal waters. A few
gusts to gale force are possible tonight over the offshore waters.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

A Small Craft Advisory is in effect through Thursday afternoon.

There is a chance of thunderstorms Monday and Tuesday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is requested.

For additional information, visit the National Weather Service in
Jacksonville website on the internet at weather.gov/jax.

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Special Weather Statement
National Weather Service Jacksonville FL
1251 AM EDT WED MAY 24 2017

FLZ025-032-033-125-240530-
Inland Duval FL-St. Johns FL-Clay FL-Coastal Duval FL-
1251 AM EDT WED MAY 24 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ST. JOHNS...
NORTHEASTERN CLAY AND SOUTHEASTERN DUVAL COUNTIES UNTIL 130 AM EDT...

At 1251 AM EDT, Doppler radar was tracking a strong thunderstorm over
Nas Jax, or near Orange Park, moving northeast at 50 mph.

Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.

Locations impacted include...
Jacksonville, Orange Park, Unf, Mandarin, Fruit Cove, Arlington,
Ponte Vedra Beach, Neptune Beach, Baymeadows and Ortega.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2999 8178 3033 8185 3052 8139 3025 8135
      3021 8134
TIME...MOT...LOC 0451Z 243DEG 44KT 3023 8171

PETERSON

Special Weather Statement
National Weather Service Jacksonville FL
313 AM EDT WED MAY 24 2017

FLZ036-240800-
Alachua FL-
313 AM EDT WED MAY 24 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ALACHUA COUNTY UNTIL
400 AM EDT...

At 312 AM EDT, Doppler radar was tracking a strong thunderstorm 7
miles south of University Of Florida, or 9 miles south of
Gainesville, moving northeast at 30 mph.

Wind gusts of 40 to 50 mph can be expected along with possible minor
wind damage.

Locations impacted include...
Gainesville, Melrose, Hawthorne, University Of Florida, Orange
Heights, Newnans Lake, Rochelle, Micanopy and Grove Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2960 8247 2978 8208 2976 8208 2975 8206
      2971 8205 2953 8206 2948 8224 2949 8249
TIME...MOT...LOC 0712Z 243DEG 25KT 2953 8234

PETERSON

Special Weather Statement
National Weather Service Jacksonville FL
316 AM EDT WED MAY 24 2017

FLZ032-037-240800-
Putnam FL-Clay FL-
316 AM EDT WED MAY 24 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN PUTNAM AND CENTRAL
CLAY COUNTIES UNTIL 400 AM EDT...

At 316 AM EDT, Doppler radar was tracking a strong thunderstorm near
George's Lake, or 8 miles northeast of Keystone Heights, moving
northeast at 30 mph.

Wind gusts of 40 to 50 mph can be expected along with possible minor
wind damage.

Locations impacted include...
Green Cove Springs, George's Lake, Lake Geneva, Penney Farms and
Putnam Hall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2971 8203 2988 8202 3010 8168 3008 8168
      3007 8169 3003 8169 3001 8168 2998 8163
      2984 8159
TIME...MOT...LOC 0716Z 243DEG 25KT 2985 8192

PETERSON