Alert archive / Florida / Areal Flood Advisories in 2016

Areal Flood Advisory 2, NWS Melbourne, FL

January 28, 2016Martin County, Saint Lucie County, Florida

NWS Melbourne, FL issued this areal flood advisory at Jan 28, 2016, 6:57 PM EST for Martin County, Saint Lucie County, Florida. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jan 28, 2016, 6:57 PM EST (23:57 UTC)
Expired
Jan 28, 2016, 9:00 PM EST
In force
2 hr
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Martin County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 101 km from the middle of the area, began a volume at 23:55 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

Miami, FL (KMFL), launched 12:00Z, 12.0 hours before the alert went out and 157 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, Miami, FL at 12:00Z on 2016-01-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 374 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, Miami, FL at 12:00Z on 2016-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897Sfc1 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
374 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jan 28, 3:32 PM EST, 3 hours 25 minutes earlier.

Area forecast discussion, Jan 28, 3:32 PM EST, 3 hours 25 minutes before
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Hazardous weather outlook, Jan 28, 4:15 AM EST, 14 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
415 AM EST THU JAN 28 2016

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-290000-
FLAGLER BEACH TO VOLUSIA-BREVARD COUNTY LINE 0-20 NM-VOLUSIA-
BREVARD COUNTY LINE TO SEBASTIAN INLET 0-20 NM-
SEBASTIAN INLET TO JUPITER INLET 0-20 NM-FLAGLER BEACH TO VOLUSIA-
BREVARD COUNTY LINE 20-60 NM-VOLUSIA-
BREVARD COUNTY LINE TO SEBASTIAN INLET 20-60 NM-
SEBASTIAN INLET TO JUPITER INLET 20-60 NM-INLAND VOLUSIA COUNTY-
NORTHERN LAKE COUNTY-ORANGE-SEMINOLE-SOUTHERN BREVARD COUNTY-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-
COASTAL VOLUSIA COUNTY-SOUTHERN LAKE COUNTY-
NORTHERN BREVARD COUNTY-
415 AM EST THU JAN 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
A STRONG UPPER LEVEL JET STREAM AND TROUGH ALOFT WEST OF THE AREA
WILL PROVIDE ADDITIONAL LIFT TODAY AND AID IN GENERATING A SLIGHT
CHANCE FOR LIGHTNING STORMS ACROSS NORTHERN PORTIONS OF EAST
CENTRAL FLORIDA WITH A HIGHER CHANCE SOUTH OF A LAKE KISSIMMEE TO
MELBOURNE LINE BY MID MORNING INTO AFTERNOON. A FEW STORMS MAY
BECOME STRONG TO BRIEFLY SEVERE ACROSS OKEECHOBEE AND THE TREASURE
COAST AS LOW LEVEL WIND FIELDS INCREASE AND PROVIDE STORM
ORGANIZATION. THERE IS A LOW RISK FOR SEVERE WIND GUSTS AND A VERY
LOW RISK OF STORMS WITH ROTATION THAT MAY BE CAPABLE OF PRODUCING
A BRIEF TORNADO ACROSS OKEECHOBEE...MARTIN AND SAINT LUCIE
COUNTIES.

.FLOOD IMPACT...
AN AREA OF RAIN ACROSS SOUTHERN PORTIONS OF EAST CENTRAL FLORIDA
THIS MORNING WILL GIVE WAY TO AN INCREASING COVERAGE OF SHOWERS
AND ISOLATED STORMS FROM MID MORNING INTO THE AFTERNOON AND EARLY
EVENING. THERE WILL BE A RISK FOR FLOODING FROM HEAVY RAIN ACROSS
SAINT LUCIE...MARTIN AND OKEECHOBEE COUNTIES TODAY WHERE A FLOOD
WATCH IS IN EFFECT. FLOODING OF STREETS AND POOR DRAINAGE AREAS IS
LIKELY WITH ANY HEAVY RAINFALL THAT DEVELOPS.

.RIP CURRENT IMPACT...
A LONG PERIOD NORTHEAST SWELL WILL PRODUCE A MODERATE RISK FOR RIP
CURRENTS AT EAST CENTRAL FLORIDA BEACHES. REMEMBER TO SWIM NEAR A
LIFEGUARD AND DO NOT SWIM ALONE.

.MARINE THUNDERSTORM GUST IMPACT...
SHOWERS AND LIGHTNING STORMS MOVING TOWARD THE INTRACOASTAL AND
NEAR SHORE WATERS TODAY FROM THE WEST MAY PRODUCE WIND GUSTS ABOVE
35 KNOTS TODAY AS THEY MOVE OFFSHORE MAINLY SOUTH OF SEBASTIAN
INLET.

.WATERSPOUT IMPACT...
WATERSPOUTS ARE POSSIBLE MAINLY SOUTH OF SEBASTIAN INLET TODAY
ACROSS THE ATLANTIC WATERS.

.WIND AND SEA IMPACT...
A COLD FRONT WILL MOVE OFFSHORE INTO LATE EVENING WITH INCREASING
NORTHWEST WINDS TONIGHT. SMALL CRAFT SHOULD EXERCISE CAUTION NEAR
SHORE FOR THE OVERNIGHT HOURS. A SMALL CRAFT ADVISORY WILL BE IN
EFFECT OFFSHORE TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
GUSTY NORTHWEST WINDS EARLY FRIDAY WILL KEEP SEAS ELEVATED ACROSS
THE OFFSHORE ATLANTIC WATERS INTO THE AFTERNOON. HIGH PRESSURE
BUILDING OVER THE STATE SATURDAY WILL ALLOW WINDS AND SEAS TO
SUBSIDE FOR THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE
IF NEEDED. RAINFALL SPOTTERS ARE REQUESTED TO REPORT ANY RAINFALL
AMOUNTS OVER TWO INCHES TO THE NATIONAL WEATHER SERVICE IN
MELBOURNE AT 3 2 1 2 5 5 0 2 1 2.

VOLKMER

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 28, 3:52 AM ESTFlood WatchMLBOkeechobee15 hr
Jan 28, 4:16 AM ESTSmall Craft AdvisoryMLB36 hr
Jan 28, 11:39 AM ESTSpecial Marine WarningMLB66 min

Nearby

Areal Flood Advisories in Florida, 2016Every areal flood advisory in 2016

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.