Alert archive / Florida / High Surf Warnings in 2009

High Surf Warning 1, NWS Jacksonville, FL

May 19, 2009Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this high surf warning at May 19, 2009, 4:08 AM EDT for Flagler County, Nassau County, Florida; Camden County, Glynn County, Georgia. It was in force for 10 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 19, 2009, 4:08 AM EDT (08:08 UTC)
Expired: May 19, 2009, 4:18 AM EDT
In force: 10 min
Issued by: NWS Jacksonville, FL

Counties Flagler County, FL, Nassau County, FL, Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 17 km from the middle of the area, began a volume at 08:11 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 00:00Z, 8.1 hours before the alert went out and 16 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high surf 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 high surf warning went out at May 18, 8:45 PM EDT, 7 hours 23 minutes earlier.

Area forecast discussion, May 18, 8:45 PM EDT, 7 hours 23 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
845 PM EDT MON MAY 18 2009

.UPDATE...FLOODING RAIN TODAY OVER FLAGLER COUNTY WITH UP TO 7.5
INCHES REPORTED NEAR BUNNELL SO FAR. SEVERAL SECONDARY ROADS ARE
EXPERIENCING FLOODING AND HAVE EXTENDED AREAL FLOOD WARNING TILL
MORNING. THIS EVENING RADAR SHOWS THE RAIN AREA HAS SHIFTED SOUTH
WITH DECREASING RAINFALL RATES AS UPPER TROUGH CONTINUES TO DIG
OVER THE EASTERN GULF. LOOKS LIKE WE WILL GET A BREAK IN THE HEAVY
RAIN TONIGHT AS NE FLOW DEEPENS BRINGING DRIER AIR SOUTH. BUT THIS
WILL BE SHORT LIVED AS MODELS SHOW HEAVY RAIN SHIFTING BACK NORTH
INTO NE FL ON TUESDAY. HAVE A FLOOD WATCH GOING FOR PARTS OF NE FL
THROUGH WEDNESDAY AS A PROLONGED HEAVY RAINFALL EVENT LOOKS
LIKELY. WILL LET LAKE ADVISORY CONTINUE FOR COASTAL COUNTIES
OVERNIGHT WITH HIGHER GUSTS OCCURRING ALONG THE BEACHES AND ST.
JOHNS RIVER.

&&

.AVIATION...LOW CONDITIONS IN 00Z TAFS THROUGH ENTIRE TAF PERIOD.
SHOW BRIEF LULL IN PCPN LATER TONIGHT...WITH NEXT ROUND OF SIG PCPN
LIKELY TO DEVELOP NORTHWARD OVER TAF SITES DURING THE DAY TMRW.
MAINTAIN GUSTY SURFACE WINDS THROUGH THE NIGHT AND DURING DAY TMRW.

&&

.MARINE...NO CHGS PLANNED IN NEXT CWF. GALE CONDITIONS TO CONTINUE
WITH BUILDING SEAS TONIGHT.

&&

.CLIMATE...RECORD LOW MAXIMUM TEMPERATURES SET TODAY AT
JACKSONVILLE(68)...GAINESVILLE(70)...ST. SIMONS ISLAND(69)...
AND ALMA(68).

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...LAKE WIND ADVISORY UNTIL 8 PM EDT TUESDAY FOR DUVAL-FLAGLER-
     NASSAU-ST JOHNS-CLAY-PUTNAM.

     FLOOD WATCH THROUGH WEDNESDAY EVENING FOR CLAY-DUVAL-FLAGLER-
     MARION-NASSAU-PUTNAM-ST JOHNS.

GA...LAKE WIND ADVISORY UNTIL 8 PM EDT TUESDAY FOR COASTAL
     CAMDEN-COASTAL GLYNN-INLAND CAMDEN-INLAND GLYNN.

AM...GALE WARNING UNTIL 5 AM EDT THURSDAY FOR ALTAMAHA SOUND GA TO
     FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE-ALTAMAHA SOUND
     GA TO FERNANDINA BEACH FL OUT 20 NM-FERNANDINA BEACH TO ST
     AUGUSTINE FL 20 NM TO 60 NM OFFSHORE-FERNANDINA BEACH TO ST
     AUGUSTINE FL OUT 20 NM-ST AUGUSTINE TO FLAGLER BEACH FL 20
     NM TO 60 NM OFFSHORE-ST AUGUSTINE TO FLAGLER BEACH FL OUT
     20 NM.

&&

ZIBURA/WOLF/WALKER

Hazardous weather outlook, May 19, 1:13 AM EDT, 2 hours 55 minutes before

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In the hours before

Local storm report, May 18, 10:50 PM EDT, 5 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1050 PM EDT MON MAY 18 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1017 PM     NON-TSTM WND GST MAYPORT                 30.38N 81.41W
05/18/2009  M46 MPH          DUVAL              FL   ASOS

            MAYPORT OBSERVATION REPORTED A 46 MPH WIND GUST.

&&

MZ

Local storm report, May 19, 12:53 AM EDT, 3 hours 15 minutes before

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Local storm report, May 19, 1:29 AM EDT, 2 hours 39 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 11:57 PM EDT	Wind Advisory	JAX	Flagler, Nassau	39 hr
May 19, 4:18 AM EDT	High Surf Advisory	JAX	Flagler, Nassau	3 days
May 19, 6:04 AM EDT	Areal Flood Warning	JAX	Flagler, Saint Johns	11 hr
May 19, 7:52 AM EDT	Special Marine Warning	JAX		53 min
May 19, 12:09 PM EDT	Areal Flood Advisory	JAX	Clay, Duval, Putnam, Saint Johns	4 hr
May 19, 5:45 PM EDT	Areal Flood Advisory	JAX	Clay, Duval, Saint Johns	3 hr

Nearby

High Surf Warnings in Florida, 2009 High Surf Warnings in Georgia, 2009 Every high surf warning in 2009

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.