Alert archive / Florida / River Flood Warnings in 2017

River Flood Warning 10, NWS Jacksonville, FL

August 2, 2017Baker County, Nassau County, Florida; Charlton County, Georgia

NWS Jacksonville, FL issued this river flood warning at Aug 2, 2017, 9:35 PM EDT for Baker County, Nassau County, Florida; Charlton County, Georgia. It took effect at Aug 3, 2017, 10:30 AM EDT. It was in force for 9 days.

The area

The counties it named.

The facts

Issued: Aug 2, 2017, 9:35 PM EDT (01:35 UTC)
In effect from: Aug 3, 2017, 10:30 AM EDT
Expired: Aug 12, 2017, 5:49 AM EDT
In force: 9 days
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Flood severity: Minor

Counties Baker County, FL, Nassau County, FL, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 36 km from the middle of the area, began a volume at 01:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point St. Marys River near Macclenny (MACF1). The gauge peaked at 13.63 ft at Aug 4, 2017, 5:00 PM EDT.

Action stage: 10 ft
Minor stage: 12 ft
Moderate stage: 15 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02231000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, 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 this river flood warning went out at Aug 2, 9:35 PM EDT, 0 minutes earlier.

Area forecast discussion, Aug 2, 9:35 PM EDT, 0 minutes before

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Hazardous weather outlook, Aug 2, 5:50 PM EDT, 3 hours 45 minutes before

Hazardous Weather Outlook
National Weather Service Jacksonville FL
550 PM EDT Wed Aug 2 2017

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-031100-
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-
550 PM EDT Wed Aug 2 2017

...HEAVY RAINFALL POTENTIAL CONTINUES TODAY FOR PARTS OF NORTHEAST
FLORIDA THIS EVENING AND SOUTHEAST GEORGIA ON THURSDAY...

...MODERATE RISK OF RIP CURRENTS...

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

.DAY ONE...Tonight...

Waves of locally heavy rainfall with a few embedded thunderstorms
are expected to continue in northeast Florida into the evening hours...
mainly west of Highway 301. The main threat will be heavy rainfall
which may cause local flooding.

North of Interstate 10 and across southeast Georgia, numerous
showers and a few thunderstorms are expected and persist through
around midnight as a warm front lifts across the area. Brief locally
heavy rainfall is expected.

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

Widespread and locally heavy rainfall is expected across southeast
Georgia and portions of the Suwannee River Valley Thursday. Some
localized flooding is likely during the day on Thursday.

Thunderstorms are expected each day, with a few strong to
isolated severe storms possible. Stronger storms will be capable
of producing gusty winds, frequent lightning, and locally heavy
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed. However, spotters are
encouraged to report heavy rainfall amounts or flooding to
the National Weather Service.

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

In the hours before

Special weather statement, Aug 2, 6:13 PM EDT, 3 hours 22 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
613 PM EDT WED AUG 2 2017

FLZ022-022245-
Columbia FL-
613 PM EDT WED AUG 2 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL COLUMBIA COUNTY
UNTIL 645 PM EDT...

At 613 PM EDT, Doppler radar was tracking a strong thunderstorm near
Wellborn, or 7 miles west of Lake City, moving northeast at 15 mph.

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

Locations impacted include...
Lake City, Five Points, Winfield and Suwannee Valley.

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.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Jacksonville.

&&

LAT...LON 3031 8279 3033 8272 3032 8272 3033 8271
      3034 8266 3015 8262 3012 8279 3020 8280
TIME...MOT...LOC 2213Z 247DEG 15KT 3019 8276

ZIBURA

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 2, 8:48 PM EDT	Special Marine Warning	JAX		42 min
Aug 3, 2:12 PM EDT	Special Weather Statement	JAX	Putnam	48 min
Aug 3, 2:24 PM EDT	Special Weather Statement	JAX	Saint Johns	36 min
Aug 3, 2:29 PM EDT	Special Weather Statement	JAX	Flagler	31 min
Aug 3, 3:02 PM EDT	Special Marine Warning	JAX		58 min

Nearby

River Flood Warnings in Florida, 2017 River Flood Warnings in Georgia, 2017 Every river flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.