Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 15, NWS Jacksonville, FL

July 26, 2018Duval County, Flagler County, Nassau County, Florida

NWS Jacksonville, FL issued this rip current statement at Jul 26, 2018, 10:54 AM EDT for Duval County, Flagler County, Nassau County, Florida. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jul 26, 2018, 10:54 AM EDT (14:54 UTC)
Expired
Jul 26, 2018, 8:00 PM EDT
In force
9 hr
Issued by
NWS Jacksonville, FL

Counties Duval County, FL, Flagler County, FL, Nassau County, FL

The radar

The Jacksonville radar (KJAX), 40 km from the middle of the area, began a volume at 14:55 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 2.9 hours before the alert went out and 42 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2018-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1827 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2018-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1827 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
719 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

216 
WHUS42 KJAX 261454
CFWJAX

Coastal Hazard Message
National Weather Service Jacksonville FL
1054 AM EDT Thu Jul 26 2018

FLZ124-125-133-138-270000-
/O.NEW.KJAX.RP.S.0015.180726T1454Z-180727T0000Z/
Coastal Nassau-Coastal Duval-Coastal St. Johns-Coastal Flagler-
1054 AM EDT Thu Jul 26 2018

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The National Weather Service in Jacksonville has issued a High
Rip Current Risk, which is in effect until 8 PM EDT this evening.

* TIMING...Through early evening. 

* IMPACTS...Life threatening rip currents are likely in the surf
  zone today. Always swim near a lifeguard. Please note that 
  stronger currents are also likely around jetties and piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a High Risk of rip currents.

Rip currents will be life threatening.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins, jetties
and piers. Heed the advice of lifeguards and the beach patrol.
Pay attention to flags and posted signs.

Swim near a lifeguard. If caught in a rip current remain calm.
Don't fight the current. Swim in a direction following the
shoreline. If unable to escape, face the shore and call or wave
for help. If tired, float or tread water until out of the rip
current.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 11:27 AM EDTSpecial Weather StatementJAXGilchrist33 min
Jul 26, 1:06 PM EDTSpecial Weather StatementJAXUnion24 min
Jul 26, 1:25 PM EDTSevere Thunderstorm WarningJAXBradford, Union15 min
Jul 26, 1:55 PM EDTSpecial Weather StatementJAXPutnam35 min
Jul 26, 2:07 PM EDTSpecial Weather StatementJAXFlagler38 min
Jul 26, 2:29 PM EDTSpecial Marine WarningJAX61 min
Jul 26, 2:31 PM EDTSpecial Weather StatementJAXSaint Johns44 min
Jul 26, 2:37 PM EDTSevere Thunderstorm WarningJAXSaint Johns23 min
Jul 26, 2:55 PM EDTSpecial Marine WarningJAX66 min
Jul 26, 3:03 PM EDTSpecial Marine WarningJAX87 min
Jul 26, 4:28 PM EDTSpecial Marine WarningJAX32 min

Nearby

Rip Current Statements in Florida, 2018Every rip current statement in 2018

Sources

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