Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Melbourne, FL

June 27, 2014Osceola County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 27, 2014, 6:37 PM EDT for Osceola County, Florida. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 27, 2014, 6:37 PM EDT (22:37 UTC)
Expired
Jun 27, 2014, 7:15 PM EDT
In force
38 min
Issued by
NWS Melbourne, FL

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 65 km from the middle of the area, began a volume at 22:35 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 12:00Z, 10.6 hours before the alert went out and 93 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 12:00Z on 2014-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1238 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 12:00Z on 2014-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
1238 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather 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 special weather statement went out at Jun 27, 3:24 PM EDT, 3 hours 13 minutes earlier.

Area forecast discussion, Jun 27, 3:24 PM EDT, 3 hours 13 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
324 PM EDT FRI JUN 27 2014

.DISCUSSION...
TONIGHT...ANOMALOUS DEEP LAYER NLY FLOW COUPLED WITH HIGH PWAT AND
AN APPROACHING TUTT FROM THE NRN BAHAMAS WL KEEP SCT MENTION OF
PCP INTO THE NIGHT TIME HOURS WITH A PERSISTENCE FORECAST OF LATE
STORMS EXPECTED ONCE AGAIN FROM LATE AFTERNOON INTO EVENING.
ACTIVITY WILL PERSIST OVER THE MARINE AREA OVERNIGHT. BOUNDARY
COLLISIONS WL FORCE DEVELOPMENT OF SCATTERED ACTIVITY INLAND. LTST
HRRR RUN CONTINUES TO SHOW SOME LATE AFTN/EVE DEVELOPMENT WITH SLY
MOTION ASSISTED BY NUMEROUS BOUNDARY COLLISIONS INTO THE EVENING
HOURS. A FEW STRONG STORMS WILL OCCUR WITH GUSTY WINDS AND SMALL
HAIL THROUGH AROUND 10 PM.

SAT-SUN...(MODIFIED PREV DISC) WL BE WATCHING AN AREA OF LOW
PRESSURE INITIALLY OFF THE GA/SC COAST SAT EXPECTED TO SLOWLY
DRIFT SOUTHWARD TO OFF OF THE NE FLORIDA EAST COAST SUN. LIGHT
WEST TO NORTHWEST WINDS BELOW 5 MPH EACH MORNING WILL BECOME
ONSHORE LATER IN THE MORNING AND AFTERNOON NEAR THE COAST. PLENTY
OF DEEP LAYER MOISTURE ACROSS THE AREA WITH PRECIPITABLE WATER
VALUES OF BETWEEN 1.80" AND 2.00" EACH AFTERNOON/EVENING.

500 MB TEMPERATURES ARE FORECAST AROUND -8C. STEERING FLOW FOR
AFTERNOON/EVENING STORMS IS FORECAST OUT OF THE NORTH. PERIODIC
MID-LEVEL IMPULSES EMBEDDED IN THE NORTHERLY FLOW WILL AID IN
CONVECTIVE DEVELOPMENT EACH DAY. THE EAST COAST SEA BREEZE WILL
DEVELOP AND MOVE SLOWLY INLAND EACH AFTERNOON. WILL KEEP HIGHEST
POPS OVER THE INTERIOR AROUND 50 PERCENT AND 40 PERCENT ACROSS
COASTAL COUNTIES. HEAT INDICES MOST PLACES WILL RANGE IN THE UPPER
90S TO AROUND 100 DEGREES EACH AFTERNOON.

MON-THU...A RATHER STAGNANT WEATHER PATTERN WILL DEVELOP WITH VERY
LIGHT STEERING FLOW FOR AFTERNOON/EVENING STORMS. THE SURFACE RIDGE
AXIS WILL REMAIN SOUTH OVER THE SOUTHERN PENINSULA. DEEP LAYER
MOISTURE IS FORECAST UPWARDS OF 2 INCHES ACROSS THE AREA DURING
THIS PERIOD. EXPECT THE DAILY EAST/WEST COAST SEA BREEZE REGIMES
TO CONTINUE WITH SCATTERED AFTERNOON/EVENING STORM CHANCES IN THE
FORECAST WITH WARM/MUGGY CONDITIONS CONTINUING.

&&

.AVIATION...
BOUNDARY COLLISIONS SHOULD CONTINUE TO INITIATE TS W OF THE I-95
CORRIDOR WITH SCT TSRA DVLPG INTERIOR AND MVG SWD NR 15KTS. ISOLD/SCT
IFR TSRAS ALNG THE SEA BREEZE FM KMCO-KOBE MVG S 15KTS WITH SFC
WND G35KTS+...CONTG THRU 28/02Z. AFT 28/02Z...SLOWLY BCMG VFR ALL
SITES...WITH SFC WNDS LGT/VRBL.

&&

.MARINE...
SURFACE RIDGE AXIS JUST SOUTH OF THE WATERS WILL MAINTAIN A LIGHT
TO GENTLE N TO NW BREEZE. PRIMARY MARINE WX HAZARD WILL BE
ISOLD TSTMS IN THE LATE AFTERNOON/OVERNIGHT. SEAS 2 FT OR LESS
NEAR COAST BUILDING TO NR 3 FT WELL OFFSHORE SAT.

SAT-MON...THE RIDGE AXIS WILL REMAIN SOUTH OF EAST CENTRAL FLORIDA
WITH A WEAK PRESSURE GRADIENT CONTINUING IN PLACE. LIGHT OFFSHORE
MORNING/EVENING FLOW WITH AN ONSHORE COMPONENT DEVELOPING EACH
AFTERNOON ALONG THE COAST WITH SEA BREEZE FORMATION. WINDS MAINLY
AOB 10 KTS. SEAS AOB 3 FT. THE MAIN MARINER HAZARDS WILL CONTINUE TO
BE DUE TO SCATTERED THUNDERSTORMS.

&&

.PRELIMINARY POINT TEMPS/POPS...
DAB  75  94  76  92 /  30  30  20  40
MCO  75  94  76  95 /  30  40  20  40
MLB  75  91  76  91 /  30  40  20  30
VRB  73  92  74  91 /  20  40  20  30
LEE  76  94  77  95 /  30  30  20  40
SFB  76  96  77  96 /  30  30  20  40
ORL  77  95  77  95 /  30  30  20  40
FPR  72  90  73  91 /  20  40  20  30

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.

&&

SHORT TERM...PENDERGRAST
LONG TERM....WIMMER
Hazardous weather outlook, Jun 27, 12:10 PM EDT, 6 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1210 PM EDT FRI JUN 27 2014

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-272000-
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-
1210 PM EDT FRI JUN 27 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
A MOIST ATMOSPHERE COMBINED WITH DAYTIME HEATING INTO THE LOWER
AND MIDDLE 90S WILL LEAD TO SCATTERED THUNDERSTORMS FROM AFTERNOON
THROUGH EARLY EVENING. ISOLATED TO SCATTERED STORMS ARE EXPECTED
TO START ALONG THE EAST COAST SEA BREEZE DURING THE EARLY TO MID
AFTERNOON. STORM MOTION WILL BE TO THE SOUTH AND SOUTHEAST AROUND
10 MPH. AN INCREASE IN THUNDERSTORM INTENSITY SHOULD OCCUR DURING
THE LATE AFTERNOON AND EARLY EVENING AS BOUNDARIES INTERACT ACROSS
INTERIOR SECTIONS OF THE PENINSULA. THE MAIN STORM HAZARD WILL BE
FROM FREQUENT LIGHTNING STRIKES IN A FEW STRONG STORMS. WIND GUSTS
40 TO 50 MPH AND SMALL HAIL WILL ALSO BE POSSIBLE.

.FLOOD IMPACT...
A FEW OF THE STRONGER AND SLOWER MOVING STORMS THIS AFTERNOON AND
EVENING WILL BE CAPABLE OF DUMPING 2 OR 3 INCHES OF RAIN IN A
SHORT PERIOD OF TIME. CONSIDERABLE STANDING WATER CAN BE EXPECTED
ON SOME ROADWAYS...SO MOTORISTS SHOULD BE AWARE OF THIS POTENTIAL
DRIVING HAZARD.

.MARINE THUNDERSTORM GUST IMPACT...
THUNDERSTORMS THAT FORM OVER LAND THIS AFTERNOON WILL MOVE SOUTH
TO SOUTHEAST AROUND 10 MPH. WIND GUSTS 40 TO 50 MPH ARE EXPECTED
WITH A FEW STORMS THAT AFFECT INLAND LAKES. THERE IS A SLIGHT
CHANCE FOR STRONG WIND GUSTS ALONG THE COAST...ESPECIALLY FROM
CAPE CANAVERAL NORTHWARD. REMEMBER THAT STRONG WINDS CAN OCCUR
WELL AWAY FROM THE HEAVY RAIN AND LIGHTNING ASSOCIATED WITH A
STORM.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
MOIST CONDITIONS WILL CONTINUE TO FAVOR SCATTERED THUNDERSTORMS
WELL INTO NEXT WEEK. THEY WILL PRIMARILY OCCUR DURING THE
AFTERNOON AND EVENING.

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

LASCODY/UPDATE JP

In the hours before

Local storm report, Jun 27, 5:36 PM EDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
536 PM EDT FRI JUN 27 2014

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

0528 PM     HAIL             5 NW BUENA VENTURA LAKE 28.39N 81.41W
06/27/2014  E0.25 INCH       ORANGE             FL   TRAINED SPOTTER

            PEA SIZE HAIL. REPORTED BY STORM SPOTTER.

&&

MRV
Local storm report, Jun 27, 6:02 PM EDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
602 PM EDT FRI JUN 27 2014

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

0425 PM     TSTM WND DMG     3 W APOPKA              28.68N 81.57W
06/27/2014                   ORANGE             FL   BROADCAST MEDIA

            METAL ROOF BLOWN OFF A STORAGE BUILDING/GARAGE AT CUSTOM
            FOLIAGE SERVICES. TIME ESTIMATED FROM RADAR.

&&

MRV
Local storm report, Jun 27, 6:15 PM EDT, 22 minutes before
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Special weather statement, Jun 27, 6:16 PM EDT, 21 minutes before
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Local storm report, Jun 27, 6:33 PM EDT, 4 minutes before
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Special weather statement, Jun 27, 6:37 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:12 PM EDTSpecial Weather StatementMLBBrevard, Osceola48 min
Jun 26, 8:57 PM EDTSpecial Weather StatementMLBOsceola48 min
Jun 26, 9:15 PM EDTSpecial Weather StatementMLBBrevard45 min
Jun 27, 1:40 PM EDTSpecial Weather StatementMLBIndian River65 min
Jun 27, 3:19 PM EDTSpecial Weather StatementMLBOkeechobee41 min
Jun 27, 3:22 PM EDTSpecial Weather StatementMLBLake38 min
Jun 27, 3:49 PM EDTSpecial Weather StatementMLBOsceola41 min
Jun 27, 4:11 PM EDTSpecial Weather StatementMLBLake64 min
Jun 27, 4:52 PM EDTSpecial Weather StatementMLBOrange, Seminole, Volusia38 min
Jun 27, 4:57 PM EDTSevere Thunderstorm WarningMLBOrange52 min
Jun 27, 5:01 PM EDTSevere Thunderstorm WarningMLBLake31 min
Jun 27, 5:30 PM EDTSpecial Weather StatementMLBOrange, Seminole, Volusia45 min
Jun 27, 5:41 PM EDTSevere Thunderstorm WarningMLBOrange, Osceola49 min
Jun 27, 6:06 PM EDTSevere Thunderstorm WarningMLBOsceola39 min
Jun 27, 6:16 PM EDTSpecial Weather StatementMLBSeminole44 min
Jun 27, 7:05 PM EDTSpecial Weather StatementMLBBrevard40 min

Nearby

Special Weather Statements in Florida, 2014Every special weather statement in 2014

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.