Alert archive / Florida / Flood Watches in 2016

Flood Watch 2, NWS Melbourne, FL

May 18, 2016Okeechobee County, Florida

NWS Melbourne, FL issued this flood watch at May 18, 2016, 4:00 AM EDT for Okeechobee County, Florida. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
May 18, 2016, 4:00 AM EDT (08:00 UTC)
Expired
May 18, 2016, 9:00 PM EDT
In force
17 hr
Issued by
NWS Melbourne, FL
Flood severity
None

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 08:01 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

Tampa Bay, FL (KTBW), launched 00:00Z, 8.0 hours before the alert went out and 153 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, Tampa Bay, FL at 00:00Z on 2016-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 86 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2016-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -59 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
86 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-59 m²/s²
0-3 km storm-relative helicity
-32 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

103 
WGUS62 KMLB 180800
FFAMLB

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MELBOURNE FL
400 AM EDT WED MAY 18 2016

...FLOOD WATCH IN EFFECT FOR INDIAN RIVER...SAINT LUCIE...MARTIN
AND OKEECHOBEE COUNTIES THROUGH THIS EVENING...

FLZ054-058-059-064-181600-
/O.NEW.KMLB.FA.A.0002.160518T0800Z-160519T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-
INCLUDING THE CITIES OF...SEBASTIAN...VERO BEACH...BASINGER...
FORT DRUM...OKEECHOBEE...PORT SAINT LUCIE...FORT PIERCE...
HOBE SOUND...JENSEN BEACH...PORT SALERNO...STUART
400 AM EDT WED MAY 18 2016

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* FLOOD WATCH FOR A PORTION OF EAST CENTRAL FLORIDA...INCLUDING 
  THE FOLLOWING AREAS...INDIAN RIVER...MARTIN...OKEECHOBEE AND 
  ST. LUCIE. 

* THROUGH THIS EVENING

* LOCALIZED RAINFALL AMOUNTS OF TWO TO FOUR INCHES MAY OCCUR TODAY
  IN REGIONS WHERE SHOWERS AND STORMS DEVELOP AND TRAIN WEST TO
  EAST OVER THE SAME AREAS. THIS SHOULD OCCUR ACROSS SOUTHERN
  PORTIONS OF EAST CENTRAL FLORIDA WHERE EXTREMELY HEAVY RAIN FELL
  ON TUESDAY. ADDITIONAL HEAVY RAINFALL MAY CAUSE ADDITIONAL
  FLOODING IN THE WATCH AREA.

* HEAVY RAINFALL MAY CAUSE FLOODING OF STREETS...AND LOW-LYING AND
  POOR DRAINAGE AREAS. THE POTENTIAL FOR FLOODING WILL BE HIGHEST
  IN AREAS THAT RECEIVED THE HEAVIES RAINFALL AMOUNTS YESTERDAY.
  THIS INCLUDES SEBASTIAN...VERO BEACH...FORT PIERCE...STUART AND
  HOBE SOUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP.

&&

$$

VOLKMER

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 8:28 PM EDTSpecial Weather StatementMLBBrevard, Indian River, Orange, Osceola, Seminole92 min
May 17, 9:05 PM EDTSpecial Marine WarningMLB85 min
May 17, 11:01 PM EDTAreal Flood WarningMLBIndian River, Saint Lucie6 hr
May 17, 11:10 PM EDTSpecial Weather StatementMLBMartin50 min
May 17, 11:49 PM EDTSpecial Weather StatementMLBMartin41 min
May 17, 11:56 PM EDTSpecial Marine WarningMLB94 min
May 18, 2:31 PM EDTSpecial Weather StatementMLBMartin, Okeechobee, Saint Lucie59 min
May 18, 2:37 PM EDTSpecial Marine WarningMLB113 min
May 18, 3:21 PM EDTSpecial Weather StatementMLBMartin54 min
May 18, 4:15 PM EDTSpecial Weather StatementMLBIndian River45 min

Nearby

Flood Watches in Florida, 2016Every flood watch 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.