Alert archive / Florida / Coastal Flood Statements in 2009

Coastal Flood Statement 7, NWS Melbourne, FL

May 19, 2009Volusia County, Florida

NWS Melbourne, FL issued this coastal flood statement at May 19, 2009, 4:28 AM EDT for Volusia County, Florida. It took effect at May 19, 2009, 6:00 AM EDT. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued
May 19, 2009, 4:28 AM EDT (08:28 UTC)
In effect from
May 19, 2009, 6:00 AM EDT
Expired
May 20, 2009, 1:43 PM EDT
In force
32 hr
Issued by
NWS Melbourne, FL

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 116 km from the middle of the area, began a volume at 08:28 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.5 hours before the alert went out and 91 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, Cape Canaveral, FL at 00:00Z on 2009-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 329 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2009-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
329 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
592 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WHUS42 KMLB 190828
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
428 AM EDT TUE MAY 19 2009

...HIGH SURF ADVISORY IN EFFECT...

FLZ047-054-059-064-141-147-191630-
/O.NEW.KMLB.CF.S.0007.090519T1000Z-090520T1200Z/
SOUTHERN BREVARD-INDIAN RIVER-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
NORTHERN BREVARD-
428 AM EDT TUE MAY 19 2009

A HIGH SURF ADVSISORY HAS BEEN ISSUED FOR THE COASTAL WATERS OF
EAST CENTRAL FLORIDA THROUGH WEDNESDAY MORNING. FRESH TO STRONG
NORTHEAST WINDS HAVE DEVELOPED BEHIND A FRONTAL BOUNDARY STALLED
OVER THE SOUTH FLORIDA PENINSULA...WITH GUSTS REACHING GALE FORCE
OVER THE WATERS NORTH OF FLAGLER BEACH.  

THESE WINDS HAVE GENERATED HIGH SEAS THAT WILL AFFECT THE COASTAL
WATERS OF EAST CENTRAL FLORIDA INTO WEDNESDAY MORNING. SEAS AT THE
DATA BUOY OFF CAPE CANAVERAL HAVE REACHED 8 FEET AND ARE FORECAST
TO REACH 10 FEET THIS EVENING. THESE SEAS WILL GENERATE LARGE AND
HAZARDOUS BREAKING SURF ALONG THE BEACHES OF EAST CENTRAL
FLORIDA. CONDITIONS WILL BE PARTICULARLY DANGEROUS THROUGH 10:00
AM THIS MORNING AND AFTER 4:30 AM THIS AFTERNOON DURING THE
OUTGOING TIDE.

IN ADDITION...MINOR BEACH EROSION MAY OCCUR THROUGH THE NEXT HIGH
TIDE CYCLE...WHICH WILL OCCUR AROUND 10:00 AM THIS MORNING.

BEACH GOERS ARE URGED TO CHECK WITH BEACH PATROL FOR LOCAL
CONDITIONS AND TO REMAIN OUT OF THE SURF ZONE TODAY. 

$$


BRAGAW
4 follow-up statements
000 
WHUS42 KMLB 191917
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
317 PM EDT TUE MAY 19 2009

...HIGH SURF ADVISORY REMAINS IN EFFECT...

FLZ047-054-059-064-141-147-201200-
/O.CON.KMLB.CF.S.0007.000000T0000Z-090520T1200Z/
SOUTHERN BREVARD-INDIAN RIVER-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
NORTHERN BREVARD-
317 PM EDT TUE MAY 19 2009

A HIGH SURF ADVISORY REMAINS IN EFFECT FOR THE COASTAL WATERS OF
EAST CENTRAL FLORIDA THROUGH WEDNESDAY MORNING. NORTHEAST TO EAST
WINDS ARE EXPECTED TO INCREASE FURTHER OVER COASTAL SECTIONS OF
EAST CENTRAL FLORIDA...AS WELL AS THE ADJACENT ATLANTIC TONIGHT.

THESE WINDS WILL CONTINUE TO GENERATE ROUGH...POUNDING SURF AND
LARGE BREAKING WAVES THAT WILL AFFECT THE EAST CENTRAL FLORIDA
BEACHES INTO WEDNESDAY MORNING.

IN ADDITION...MINOR BEACH EROSION MAY OCCUR THROUGH THE NEXT HIGH
TIDE CYCLE...WHICH WILL OCCUR BETWEEN 4:00 AM AND 5:00 AM.

PRESENT INDICATIONS ARE THAT THE HIGH SURF ADVISORY WILL NEED TO
BE EXTENDED THROUGH MUCH OF WEDNESDAY.

$$

CRISTALDI
000 
WHUS42 KMLB 200823
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
423 AM EDT WED MAY 20 2009

...HIGH SURF ADVISORY REMAINS IN EFFECT...

FLZ047-054-059-064-141-147-210200-
/O.EXT.KMLB.CF.S.0007.000000T0000Z-090521T0200Z/
SOUTHERN BREVARD-INDIAN RIVER-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
NORTHERN BREVARD-
423 AM EDT WED MAY 20 2009

A HIGH SURF ADVISORY REMAINS IN EFFECT FOR THE COASTAL WATERS OF
EAST CENTRAL FLORIDA THROUGH 10:00 PM THIS TONIGHT. 

STRONG EASTERLY WINDS WILL CONTINUE TO GENERATE HIGH SEAS OVER THE
LOCAL ATLANTIC WATERS THROUGH THIS EVENING...RESULTING IN POUNDING
SURF AND LARGE BREAKING WAVES ACROSS THE EAST CENTRAL FLORIDA
BEACHES. MINOR BEACH EROSION MAY OCCUR THROUGH THE NEXT HIGH TIDE
CYCLE...WHICH WILL PEAK BETWEEN 5:00 PM AND 6:00 PM THIS
AFTERNOON.

THE HIGH SURF ADVISORY MAY BE EXTENDED INTO THURSDAY MORNING.

$$

BRAGAW
000 
WHUS42 KMLB 201554
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
1154 AM EDT WED MAY 20 2009

...HIGH SURF ADVISORY REMAINS IN EFFECT...

FLZ141-210200-
/O.CAN.KMLB.CF.S.0007.000000T0000Z-090521T0200Z/
/O.NEW.KMLB.CF.Y.0001.090520T1554Z-090521T1600Z/
COASTAL VOLUSIA-
1154 AM EDT WED MAY 20 2009

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL NOON EDT THURSDAY...
...HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT UNTIL NOON EDT THURSDAY. 

A HIGH SURF ADVISORY REMAINS IN EFFECT THROUGH 10 PM TONIGHT.

A COASTAL FLOOD ADVISORY HAS BEEN ISSUED FOR THOSE RESIDENTS WHO
LIVE ALONG THE INTRACOASTAL HALIFAX RIVER IN VOLUSIA COUNTY.
VOLUSIA COUNTY EMERGENCY MANAGEMENT REPORTS FLOODING INTO SOME
YARDS AND LOW AREAS ALONG THE HALIFAX RIVER. STRONG ONSHORE WINDS
ACROSS THE ATLANTIC...AND LARGE SWELLS IMPACTING PONCE INLET ARE NOT
ALLOWING EFFECTIVE DISCHARGE FROM INTRACOASTAL WATERWAY INTO THE
ATLANTIC WATERS. A RAINFALL OBSERVER NEAR ORMOND BEACH REPORTED
14.90 INCHES OF RAIN OVER THE PAST THREE DAYS. THE RUN OFF FROM
HEAVY RAIN INTO THE INTRACOASTAL WATERWAY AND GUSTY ONSHORE FLOW IS
RAISING WATER LEVELS...ESPECIALLY NORTH OF THE INLET AND MAY IMPACT
LOW AREAS ALONG THE RIVER WITH MINOR FLOODING.

ALONG THE VOLUSIA COUNTY BEACHES...HIGH POUNDING SURF AND LARGE
BREAKING WAVES WILL CONTINUE TODAY. MINOR BEACH EROSION MAY OCCUR
THROUGH THE NEXT HIGH TIDE CYCLE...WHICH WILL PEAK BETWEEN 5 PM
AND 6 PM THIS AFTERNOON. AREAS SUSCEPTIBLE TO EROSION...MAY EXPERIENCE
MODERATE EROSION DURING THIS EVENT. A HIGH SURF ADVISORY REMAINS
IN EFFECT AND SWIMMING IN THE HIGH SURF IS DISCOURAGED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS NEAR THE COAST.

&&

$$

FLZ047-054-059-064-147-210200-
/O.CON.KMLB.CF.S.0007.000000T0000Z-090521T0200Z/
SOUTHERN BREVARD-INDIAN RIVER-ST. LUCIE-MARTIN-NORTHERN BREVARD-
1154 AM EDT WED MAY 20 2009

...HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM THIS EVENING...

A HIGH SURF ADVISORY REMAINS IN EFFECT THROUGH 10 PM THIS
TONIGHT.

STRONG EASTERLY WINDS WILL CONTINUE TO GENERATE HIGH SEAS OVER
THE LOCAL ATLANTIC WATERS THROUGH THIS EVENING...RESULTING IN
POUNDING SURF AND LARGE BREAKING WAVES ACROSS THE EAST CENTRAL
FLORIDA BEACHES. MINOR BEACH EROSION MAY OCCUR THROUGH THE NEXT
HIGH TIDE CYCLE...WHICH WILL PEAK BETWEEN 5 PM AND 6 PM THIS
AFTERNOON.

THE HIGH SURF ADVISORY MAY BE EXTENDED INTO THURSDAY MORNING.

$$
000 
WHUS42 KMLB 201743
CFWMLB

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
143 PM EDT WED MAY 20 2009

...HIGH SURF ADVISORY REMAINS IN EFFECT...

FLZ047-054-059-064-147-210200-
/O.CAN.KMLB.CF.S.0007.000000T0000Z-090521T0200Z/
/O.NEW.KMLB.SU.Y.0002.090520T1743Z-090521T0200Z/
SOUTHERN BREVARD-INDIAN RIVER-ST. LUCIE-MARTIN-NORTHERN BREVARD-
143 PM EDT WED MAY 20 2009

...HIGH SURF ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM EDT THIS EVENING. 

STRONG EASTERLY WINDS WILL CONTINUE TO GENERATE HIGH SEAS OVER
THE LOCAL ATLANTIC WATERS THROUGH THIS EVENING...RESULTING IN
POUNDING SURF AND LARGE BREAKING WAVES ACROSS THE EAST CENTRAL
FLORIDA BEACHES. MINOR BEACH EROSION MAY OCCUR THROUGH THE NEXT
HIGH TIDE CYCLE...WHICH WILL PEAK BETWEEN 5 PM AND 6 PM THIS
AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

FLZ141-210200-
/O.NEW.KMLB.SU.Y.0002.090520T1743Z-090521T0200Z/
/O.CON.KMLB.CF.Y.0001.000000T0000Z-090521T1600Z/
COASTAL VOLUSIA-
143 PM EDT WED MAY 20 2009

...HIGH SURF ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM EDT THIS EVENING. A
COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON EDT THURSDAY.

A COASTAL FLOOD ADVISORY HAS BEEN ISSUED FOR THOSE RESIDENTS WHO
LIVE ALONG THE INTRACOASTAL HALIFAX RIVER IN VOLUSIA COUNTY.
VOLUSIA COUNTY EMERGENCY MANAGEMENT REPORTS FLOODING INTO SOME
YARDS AND LOW AREAS ALONG THE HALIFAX RIVER AND TOMOKA RIVER.
STRONG ONSHORE WINDS ACROSS THE ATLANTIC...AND LARGE SWELLS
IMPACTING PONCE INLET ARE NOT ALLOWING EFFECTIVE DISCHARGE FROM
INTRACOASTAL WATERWAY INTO THE ATLANTIC WATERS. A RAINFALL
OBSERVER NEAR ORMOND BEACH REPORTED 14.90 INCHES OF RAIN OVER THE
PAST THREE DAYS. THE RUN OFF FROM HEAVY RAIN INTO THE INTRACOASTAL
WATERWAY AND GUSTY ONSHORE FLOW IS RAISING WATER LEVELS...
ESPECIALLY NORTH OF THE INLET AND MAY IMPACT LOW AREAS ALONG THE
RIVER WITH MINOR FLOODING.

ALONG THE VOLUSIA COUNTY BEACHES...HIGH POUNDING SURF AND LARGE
BREAKING WAVES WILL CONTINUE TODAY. MINOR BEACH EROSION MAY OCCUR
THROUGH THE NEXT HIGH TIDE CYCLE...WHICH WILL PEAK BETWEEN 5 PM
AND 6 PM THIS AFTERNOON. AREAS SUSCEPTIBLE TO EROSION...MAY
EXPERIENCE MODERATE EROSION DURING THIS EVENT. A HIGH SURF
ADVISORY REMAINS IN EFFECT AND SWIMMING IN THE HIGH SURF IS
DISCOURAGED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS NEAR THE COAST.

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

15

What forecasters said that day

The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this coastal flood statement went out at May 18, 9:42 PM EDT, 6 hours 46 minutes earlier.

Area forecast discussion, May 18, 9:42 PM EDT, 6 hours 46 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
942 PM EDT MON MAY 18 2009

.DISCUSSION...
...WET PATTERN CONTINUES INTO MIDWEEK...
...HAZARDOUS BOATING AND BEACH CONDITIONS AT THE ATLANTIC COAST AS
LOW PRESSURE SPINS UP SOUTH OF FLORIDA...

RECENT ANALYSIS CONFIRMS TIGHTENING OF PRESSURE GRADIENT NORTH OF
STALLED FRONTAL BOUNDARY ALONG THE FL EAST COAST. STOUT ONSHORE
WINDS FROM VOLUSIA COAST NORTHWARD ARE PUSHING PERSISTENT SHOWER
ACTIVITY WELL INLAND ALONG THE VOLUSIA/FLAGLER COASTS. OCCASIONAL
SHOWERS WILL BE ACCOMPANIED BY WIND GUSTS IN THE 30 TO 35 MPH RANGE
ALONG THE COASTAL AREAS WITH ACCUMULATING RAINS CONTINUING INTO THE
EARLY MORNING HOURS. ELSEWHERE SHOWERS ASCD WITH THE STALLED
BOUNDARY MAINLY OVER THE SOUTHERN PORTION OF THE AREA WILL BE
POSSIBLE OVERNIGHT WITH LESSER COVERAGE EXPECTED AWAY FROM THE
COAST. THE CURRENT FORECAST PKGS ARE IN GOOD SHAPE AND NO CHGS ARE
PLANNED.

*** PREV DISC BELOW ***

TONIGHT/TUE...FRONTAL BOUNDARY WILL REMAIN STALLED OVER THE AREA
TONIGHT INTO TOMORROW KEEPING A VERY MOIST AIRMASS ON PLACE. IN
ADDITION TO THIS...THE UPPER LEVEL TROUGH OVER THE AREA WILL BEGIN
TO FORM INTO A CUTOFF LOW PRESSURE SYSTEM WHICH WILL KEEP TEMPS COOL
ALOFT AND THE WEATHER PATTERN UNSETTLED. THEREFORE WILL KEEP LIKELY
POPS (60-70 PERCENT) OVER THE AREA. CLOUD COVER WILL LIMIT
INSTABILITY OVER THE AREA SO WILL ONLY MENTION A CHANCE FOR
THUNDERSTORMS. STRONGER STORMS WILL CONTINUE TO BE ABLE TO PRODUCE
LOCALIZED HEAVY RAINFALL WITH RAINFALL RATES UP TO ONE TO TWO INCHES
PER HOUR. TIGHTER PRESSURE GRADIENT OVER NORTHERN SECTIONS OF THE
CWA WILL KEEP WINDS ELEVATED OVERNIGHT UP TO 10 TO 15 MPH OUT OF THE
NORTHEAST. THESE WINDS COULD CONTINUE TO BECOME STRONGER INTO
TOMORROW DEPENDING ON DEVELOPMENT OF A LOW PRESSURE SYSTEM SOUTH OF
THE AREA...HOWEVER MODELS ARE CONTINUING TO HAVE A HARD TIME
RESOLVING THIS FEATURE SO WILL KEEP WINDS AS IS FOR NOW.

TUE NGT-WED NGT...CONTINUE TO FAVOR THE MORE WWD ECM/UKM SOLNS OVER
THE GFS (WHICH SEEMS TO OVERDEVELOP THE WEAK LOW JUST NORTH OF THE
ERN CUBA COAST) AND THE NAM (WHICH LOOKS TOO LOW WITH THE CTRL PRES
OVER FL. HENCE...EXPECT BEST PRES FALLS/SFC CYCLOGENESIS WILL OCCUR
CLOSER TO THE MID-UPR CUTOFF LOW CTR...WHERE VERTICAL ASCENT WILL BE
STRONGEST. SYSTEM WILL GRDLLY SPIN UP AND THEN BE SLOW TO DRIFT WWD
INTO THE GOMEX. TIGHTENING PGRAD COUPLED WITH HIGH PWAT VALUES INVOF
DECAYED/WASHED OUT FRONTAL BDRY WILL KEEP ECFL IN A VERY MOIST AND
UNSETTLED WX REGIME...WITH FAIRLY WDPRD COVRG OF RAINFALL THROUGH AT
LEAST WEDNESDAY NGT. BRISK EASTERLIES MAY GIVE A SQUALLY TYPE FEEL
TO THE WX AS SHRA BANDS EMBEDDED WITHIN WDSPRD STRATIFORM RAINFALL
REPEATEDLY MOVE ONSHORE.

THU-SUN...(PREV) FCST WILL HINGE LARGELY ON HOW THE ANTICIPATED LOW
PRESSURE SYSTEM DEVELOPS AND INTERACTS WITH THE FRONTAL TROF AND THE
SURROUNDING MOISTURE FIELD. GIVEN THE NUMBER OF ELEMENTS IN PLAY AND
THE FACT THE LOW IS STILL MORE OR LESS AN OPEN WAVE...WILL MAKE ONLY
MINOR ADJUSTMENTS TO THE PREVIOUS EXTENDED FCST. EXPECT TO GRADUALLY
TREND TWDA MORE DIURNAL-DRIVEN CONVECTIVE REGIME WITH POPS REMAINING
MORE TYPICAL OF LATE JUNE/EARLY JULY RATHER THAN MID-LATE MAY.

&&

.AVIATION...FRONTAL BOUNDARY OVER THE AREA WILL CONTINUE TO STIR UP
SHOWERS AND THUNDERSTORMS TONIGHT INTO TOMORROW. CONDITIONS WILL
REMAIN PREDOMINANTLY MVFR WITH TEMPO REDUCTIONS TO IFR IN ANY
STRONGER SHRA/TSRA ACTIVITY.

&&

.MARINE...STRONG PRESSURE GRADIENT EXISTS BEHIND THE FRONTAL
BOUNDARY WITH BUOY 41012 UP TO 20-25 KTS OUT OF THE NE AND EXPECTING
THIS WIND TO FILTER DOWN INTO THE NORTHERN WATERS SO WILL KEEP SCA
IN THIS AREA CONTINUING FOR THIS AFTERNOON INTO THE EVENING HOURS.
SCA CONDITIONS THEN WILL EXTEND SOUTHWARD OVER ALL OF THE WATERS
TONIGHT INTO TOMORROW AS ELEVATED E/NE WINDS BUILD SEAS TO HAZARDOUS
LEVELS.

HAZARDOUS BOATING CONDITIONS EXPECTED TO CONTINUE THRU THE WEEK AS A
HIGH PRESSURE RIDGE OVER THE MIDWEST MOVE INTO THE MID ATLC/MID
SOUTH REGION.  AS IT DOES...IT WILL PUSH A FRONTAL TROUGH FROM THE
FL PANHANDLE INTO THE CENTRAL PENINSULA BY DAYBREAK TUE.  TIGHT
PGRAD BETWEEN THE RIDGE AND THE TROUGH WILL GENERATE A FRESH TO
STRONG ERLY FLOW BY DAYBREAK WED WITH SEAS BUILDING TO 5-7FT
NEARSHORE...8-10FT OFFSHORE. LOW PRES PROGGED TO FORM SOUTH OF
FL WILL TIGHTEN PGRAD FURTHER INTO WED...WITH WINDS INCREASING TO
NEAR GALE FORCE AND SEAS BUILDING TO >12FT  OVER THE OFFSHORE WATERS
WED/WED NGT. HAVE HELD OFF ON ISSUING GALE WATCH FOR NOW...BUT COULD
EASILY SEE GALE CONDS REALIZED...DEPENDING UPON STRENGTH/POSN OF SFC
LOW PRES CTR. PREFER TO WAIT UNTIL LOW ACTUALLY STARTS TO GET
CRANKING BEFORE PULLING THE TRIGGER.

HAZARDOUS MARINE CONDS WILL SLOWLY ABATE ONCE LOW PULLS WWD AWAY FROM
FL...THOUGH SPEED AT WHICH IT DOES SO REMAINS IN QUESTION. PROBABLY
LOOKING AT NO SOONER THAN FRI BEFORE CONDS BECOME LESS DANGEROUS.

&&

.HYDROLOGY...FRONTAL BOUNDARY DROPPING INTO THE AREA AND STALLING
WILL INCREASE MOISTURE SUBSTANTIALLY TODAY-TUE...THEN A LOW PRESSURE
AREA MOVING UP FROM THE SOUTH TO SOUTHEAST SHOULD PROLONG THE WET
REGIME THROUGH MID-LATE WEEK. BASIN AREAL AVG RAINFALL ACCUMULATIONS
EXPECTED TO BE SEVERAL INCHES AREAWIDE...WHICH WOULD HELP REPLENISH
LOCAL LAKE LEVELS...RECHARGE THE AQUIFER...AND OF COURSE PROVIDE SOME
BADLY NEEDED RELIEF FROM THE WILDFIRE THREAT.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...SMALL CRAFT ADVISORY UNTIL 10 PM EDT THURSDAY FOR COASTAL WATERS
     FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE OUT 20 NM-
     WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20
     TO 60 NM OFFSHORE.

     SMALL CRAFT ADVISORY FROM 8 AM TUESDAY TO 10 PM EDT THURSDAY FOR
     COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20
     NM-COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO
     SEBASTIAN INLET OUT 20 NM-WATERS FROM SEBASTIAN INLET TO
     JUPITER INLET 20 TO 60 NM OFFSHORE.

     SMALL CRAFT ADVISORY FROM 2 AM TUESDAY TO 10 PM EDT THURSDAY FOR
     WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET
     20 TO 60 NM OFFSHORE.

&&

JP/ALM
Hazardous weather outlook, May 18, 9:11 PM EDT, 7 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
911 PM EDT MON MAY 18 2009

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-191200-
COASTAL WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE
OUT 20 NM-
COASTAL WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN
INLET OUT 20 NM-
COASTAL WATERS FROM SEBASTIAN INLET TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO VOLUSIA BREVARD COUNTY LINE 20 TO
60 NM OFFSHORE-
WATERS FROM VOLUSIA BREVARD COUNTY LINE TO SEBASTIAN INLET 20 TO
60 NM OFFSHORE-
WATERS FROM SEBASTIAN INLET TO JUPITER INLET 20 TO 60 NM OFFSHORE-
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
911 PM EDT MON MAY 18 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TONIGHT.

...THUNDERSTORM IMPACT...
WIDESPREAD SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING
IN ADDITIONAL CLOUDY SKIES FROM THE EARLIER CONVECTION HAVE HELPED
TO STABILIZE THE ATMOSPHERE OVER CENTRAL FLORIDA. NONETHELESS...THE
INTERACTION OF A FRONTAL BOUNDARY OVER SOUTH FLORIDA AND A WEAK
AREA OF LOW PRESSURE OFFSHORE EASTERN FLORIDA WILL CONTINUE TO
BRING A THREAT OF ISOLATED STORMS EMBEDDED WITHIN THE STRATIFORM
RAIN. A FEW STORMS THAT MOVE ONSHORE THE IMMEDIATE COAST MAY BE
ABLE TO PRODUCE FREQUENT LIGHTNING STRIKES AND WIND GUSTS UP TO 40
MPH.

...FLOOD IMPACT...
RECORD RAINFALL AMOUNTS HAVE BEEN REPORTED MANY AREAS THIS
AFTERNOON WITH LIGHT TO MODERATE RAIN CONTINUING TO FALL THIS
EVENING AND OVERNIGHT. ANY HEAVIER SHOWERS OVERNIGHT WILL LEAD TO
EXCESSIVE RUNOFF IN AREAS THAT HAVE RECEIVED HEAVIER RAIN THIS
AFTERNOON...WITH LOCALIZED NUISANCE FLOODING ALONG AREA
ROADWAYS...POOR DRAINAGE AREAS...AN DIN LOW LYING SPOTS. THE
THREAT IS GREATEST ALONG THE COAST WITH HEAVIER SHOWERS MOVING ON
SHORE...AND ACROSS NORTHERN SECTION OF VOLUSIA AND LAKE COUNTIES
THAT HAVE SEEN HIGHER RAINFALL AMOUNTS.

...MARINE THUNDERSTORM GUST IMPACT...
SCATTERED STORMS WILL MOVE NORTHEASTWARD ACROSS THE WATERS OVERNIGHT...WITH
STRONGER STORMS CONTAINING WIND GUSTS AROUND 30 KNOTS.

...WIND AND SEA IMPACT...
THE PRESSURE GRADIENT WILL TIGHTEN OVER THE WATERS NORTH OF CAPE
CANAVERAL AS A WEAK AREA OF LOW PRESSURE FORMS TO THE EAST OF THE
CAPE. NORTH TO NORTHEAST WINDS WILL INCREASE OVER THESE REGION
OVERNIGHT...SO A SMALL CRAFT ADVISORY IS IN EFFECT FOR THESE AREAS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
A LOW PRESSURE CENTER IS FORECAST TO DEVELOP SOUTH OF THE AREA BY
TUESDAY AND MOVE SLOWLY ACROSS SOUTH FLORIDA INTO THE GULF OF
MEXICO. INCREASING ONSHORE WINDS WILL LEAD TO HAZARDOUS BOATING
CONDITIONS THROUGH LATE WEEK. THE LOW PRESSURE SYSTEM WILL ALSO
KEEP RAIN CHANCES HIGH THROUGH AT LEAST MID WEEK...WITH A THREAT
FOR HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE
IF NEEDED.

MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 5:24 AM EDTLake Wind AdvisoryMLBLake, Orange, Osceola, Seminole, Volusia14 hr
May 19, 9:05 AM EDTFlood WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia3 days
May 19, 7:34 PM EDTAreal Flood WarningMLBVolusia3 hr
May 19, 7:39 PM EDTWind AdvisoryMLBVolusia15 hr

Nearby

Coastal Flood Statements in Florida, 2009Every coastal flood statement 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.