Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Melbourne, FL

August 16, 2014Orange County, Seminole County, Florida

NWS Melbourne, FL issued this special weather statement at Aug 16, 2014, 1:49 PM EDT for Orange County, Seminole County, Florida. It was in force for 41 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: Aug 16, 2014, 1:49 PM EDT (17:49 UTC)
Expired: Aug 16, 2014, 2:30 PM EDT
In force: 41 min
Issued by: NWS Melbourne, FL

Counties Orange County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 81 km from the middle of the area, began a volume at 17:49 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, 5.8 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-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: 225 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 16, 9:10 AM EDT, 4 hours 39 minutes earlier.

Area forecast discussion, Aug 16, 9:10 AM EDT, 4 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
910 AM EDT SAT AUG 16 2014

.DISCUSSION...

ATLANTIC RIDGE AXIS REMAINS SUPPRESSED ACROSS S FLORIDA THIS MORNING
KEEPING CENTRAL FLORIDA UNDER LIGHT SOUTHWEST FLOW. THE FLOW WILL
CONTINUE TO TAP INTO A FAIRLY DEEP MOISTURE POOL...THOUGH MORNING
SOUNDINGS AND WATER VAPOR SATELLITE SHOW A SIGNIFICANT DRY POOL
ACROSS NORTH FLORIDA.

THINGS ARE EXPECTED TO UNFOLD SIMILAR TO YESTERDAY...THOUGH A FEW
HOURS SLOWER WITH THE ONSET OF INITIAL RAIN AND STORMS ASSOCIATED
WITH ACTIVITY CURRENTLY MOVING ONSHORE THE WEST FL COAST TRAVERSING
EASTWARDS ACROSS THE PENINSULA DURING THE LATE MORNING/EARLY
AFTERNOON. OFFSHORE FLOW WILL BE LIGHT ENOUGH FOR A DEFINED EAST
COAST BREEZE BOUNDARY FROM THE CAPE SOUTHWARDS BY EARLY/MID
AFTERNOON WITH A FEW STORMS DEVELOPING ALONG IT AS WELL. COVERAGE
INCREASES THROUGH THE AFTERNOON AND EARLY EVENING WITH BOUNDARY
INTERACTIONS AND SURFACE HEATING...WITH BEST COVERAGE TOWARDS THE
SPACE AND TREASURE COAST AS ACTIVITY COLLIDES WITH AND PILES UP
ALONG THE EAST COAST SEA BREEZE.

THERE WILL BE THE POTENTIAL FOR A FEW STRONG STORMS WITH LOCALLY
HEAVY RAIN...FREQUENT LIGHTNING...AND WIND GUSTS TO 50 MPH ALONG THE
COASTAL COUNTIES FROM MID AFTERNOON THROUGH EARLY EVENING. AS ALWAYS
WITH BOUNDARY INTERACTIONS...A FEW FUNNEL CLOUDS OR WATERSPOUTS CAN
NOT BE RULED OUT.

UPPER LEVEL VORT MAX STRUNG OUT ACROSS THE REGION MAY HELP DEBRIS
RAIN LINGER INTO THE LATE EVENING HOURS. BOTH MOST ACTIVITY WILL
PUSH SOUTH AND EAST OF THE AREA AND OVER THE ATLC WATERS AN HOUR
OR SO PAST DARKNESS.

&&

.AVIATION...
PREVAILING VFR THROUGH 15Z WITH SOME CU DEVELOPING FL020-030. ISOLD
SHRA/TSRA VCNTY KLEE AFTER 15Z AS ACTIVITY MOVES EAST INTO REGION
AND ORLANDO METRO TAF SITES 16-17Z. SCT TSRA MOVING WEST TO EAST
18Z-23Z. EAST COAST SEA BREEZE DEVELOPMENT EXPECTED KVRB-KSUA...WILL
FLIRT WITH KTIX-KMLB AND POSSIBLY EVEN REACH KEVB OR KDAB. TEMPO IFR
WITH TSRA...A FEW PRODUCING GUSTS 35KTS ESPECIALLY ALONG COAST.
LINGER SHRA THROUGH 17/02Z.

&&

.MARINE...
SURFACE RIDGE AXIS WILL REMAIN SOUTH OF CENTRAL FLORIDA THROUGH
TONIGHT WITH PREVAILING WINDS S-SW 5-10KTS. SEA BREEZE DEVELOPMENT
TURNING WINDS S-SE FROM THE CAPE SOUTHWARDS BY MID AFTERNOON AND
SOUTH ALONG VOLUSIA COAST. SEAS 2-3FT.

OFFSHORE MOVING STORMS REMAIN THE MAIN BOATING CONCERN THROUGH THE
DAY. A FEW STORMS MAY DEVELOP ALONG INTRACOASTAL EARLY/MID AFTERNOON
WITH EAST COAST SEA BREEZE...WITH STRONGER STORMS LIKELY PUSHING
OFFSHORE LATER IN THE AFTERNOON.

&&

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

&&

MOSES/LASCODY

Hazardous weather outlook, Aug 16, 11:04 AM EDT, 2 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1104 AM EDT SAT AUG 16 2014

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-162200-
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-
1104 AM EDT SAT AUG 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
SCATTERED STORMS ALONG THE WEST COAST SEA BREEZE WILL MARCH STEADILY
TOWARDS THE ATLANTIC COAST.  ACTIVITY SHOULD REACH LAKE COUNTY
BEFORE MIDDAY...THEN SHIFT EAST OF INTERSTATE 4 TO COASTAL SECTIONS
BY LATE AFTERNOON.  INTERACTION OF ADVANCING STORMS WITH THE
DEVELOPING EAST COAST SEA BREEZE IS EXPECTED TO LEAD TO SOME STRONG
STORMS AGAIN DURING THE LATE AFTERNOON AND EARLY AFTERNOON. THE
HIGHEST PROBABILITY FOR THIS SHOULD BE FROM CAPE CANAVERAL TO THE
TREASURE COAST.

FREQUENT TO EXCESSIVE LIGHTNING IN A FEW STRONG STORMS WILL POSE THE
GREATEST THREAT TO LIFE...BUT WIND GUSTS TO 55 MPH WILL ALSO BE
POSSIBLE. WHERE BOUNDARY INTERACTIONS OCCUR NEAR THE COAST...THERE
IS ALSO A SLIGHT CHANCE FOR A BRIEF TORNADO.

.FLOOD IMPACT...
STRONGER AND SLOWER MOVING STORMS...WHICH FORM WHERE THE EAST COAST
SEA BREEZE BOUNDARY PUSHES INLAND FROM CAPE CANAVERAL SOUTHWARD...
COULD RESULT IN QUICK 2 INCH DOWNPOURS. MINOR FLOODING OF POOR
DRAINAGE AREAS MAY OCCUR.

.MARINE THUNDERSTORM GUST IMPACT...
SCATTERED STORMS WILL MOVE TO THE EAST AT 10 TO 15 MPH.  AN EAST
COAST SEA BREEZE IS EXPECTED TO FORM...ESPECIALLY FROM CAPE
CANAVERAL SOUTHWARD TO THE TREASURE COAST...RESULTING IN A FEW
STRONG STORMS WITH GUSTY WINDS TO 40 MPH OR GREATER. BOATERS SHOULD
MOVE TO SAFE HARBOR AS DARKENING SKIES ARE OBSERVED ON THE WESTERN
HORIZON.

.WATERSPOUT IMPACT...
BOUNDARY INTERACTIONS WITHIN ENVIRONMENTS OF STRONG HEATING MAY
PRODUCE A BRIEF WATERSPOUT NEAR THE COAST.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
DRIER AIR NEAR THE SURFACE RIDGE AXIS WILL MOVE OVER CENTRAL FLORIDA
DURING THE EARLY TO MIDDLE PART OF NEXT WEEK AND SUPPRESS SHOWER AND
THUNDERSTORM ACTIVITY. HOT WEATHER IS EXPECTED WITH HIGHS INTO THE
MID 90S ACROSS THE INTERIOR THROUGH MUCH OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE IF NECESSARY.

LASCODY

In the hours before

Special weather statement, Aug 16, 12:36 PM EDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1236 PM EDT SAT AUG 16 2014

FLZ041-044>046-053-058-144-161745-
INLAND VOLUSIA COUNTY-NORTHERN LAKE
COUNTY-OKEECHOBEE-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN LAKE COUNTY-
1236 PM EDT SAT AUG 16 2014

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
AFFECTING MARINERS OVER LAKE COUNTY...WESTERN OKEECHOBEE
COUNTY...WESTERN ORANGE COUNTY...WESTERN OSCEOLA COUNTY...WESTERN
SEMINOLE COUNTY...WESTERN VOLUSIA COUNTY...

* UNTIL 130 PM EDT.

AT 1234 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STORMS CAPABLE OF PRODUCING STRONG WIND GUSTS ACROSS LAKE
COUNTY AND APPROACHING THE KISSIMMEE RIVER...MOVING EAST AT 15 TO 20
MPH.

LOCATIONS IN THE PATH OF THE STORMS WHICH MAY EXPERIENCE STRONG WINDS
INCLUDE LAKE APOPKA POINCIANA...BAY HILL...CAMPBELL AND
CLERMONT...LAKE TOHO AND LAKE KISSIMMEE.

THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS UP TO 40 MPH...WHICH CAN CAPSIZE SMALL BOATS. HEAVY
RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS
UNTIL THE STORMS PASS.

BOATERS SHOULD BE AWARE THAT STRONG WIND GUSTS SOMETIMES OCCUR WELL
AWAY FROM THE HEAVY RAIN AND LIGHTNING ASSOCIATED WITH STORMS.

LAT...LON 2896 8166 2913 8165 2924 8135 2725 8099
      2736 8104 2739 8112 2749 8121 2765 8114
      2777 8119 2806 8145 2802 8138 2808 8135
      2808 8145 2814 8146 2814 8153 2826 8156
      2826 8166 2834 8167 2835 8187 2897 8193
TIME...MOT...LOC 1633Z 263DEG 11KT 2895 8182 2739 8165

RL

Special weather statement, Aug 16, 1:49 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
149 PM EDT SAT AUG 16 2014

FLZ041-044>046-053-141-144-147-161830-
COASTAL VOLUSIA COUNTY-INLAND VOLUSIA COUNTY-NORTHERN BREVARD
COUNTY-NORTHERN LAKE COUNTY-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN LAKE
COUNTY-
149 PM EDT SAT AUG 16 2014

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
OVER NORTHWESTERN BREVARD COUNTY...SOUTHEASTERN LAKE COUNTY...ORANGE
COUNTY...NORTHERN OSCEOLA COUNTY...SEMINOLE COUNTY...SOUTHERN VOLUSIA
COUNTY...

* UNTIL 230 PM EDT.

AT 147 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER WINTER GARDEN...
MOVING EAST AT 15 MPH.

LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS
INCLUDE BAY HILL...BELLE ISLE...FAIRVIEW SHORES AND OAKLAND.

THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS UP TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO BLOW
AROUND...SNAP TREE LIMBS...CAUSE POWER OUTAGES OR CAPSIZE SMALL
BOATS. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK
SHELTER INDOORS UNTIL THE STORM PASSES.

BOATERS SHOULD BE AWARE THAT STRONG WIND GUSTS SOMETIMES OCCUR WELL
AWAY FROM THE HEAVY RAIN AND LIGHTNING ASSOCIATED WITH STORMS.

LAT...LON 2892 8152 2892 8092 2827 8086 2811 8086
      2812 8146 2814 8146 2814 8152 2820 8153
      2825 8156 2826 8166 2834 8166 2834 8173
      2835 8174
TIME...MOT...LOC 1748Z 267DEG 12KT 2854 8154

RL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 12:36 PM EDT	Special Weather Statement	MLB	Lake, Orange, Osceola	69 min
Aug 16, 1:55 PM EDT	Special Marine Warning	MLB		2 hr
Aug 16, 2:04 PM EDT	Special Weather Statement	MLB	Indian River, Okeechobee, Saint Lucie	41 min
Aug 16, 2:14 PM EDT	Special Weather Statement	MLB	Brevard	61 min
Aug 16, 2:39 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	28 min
Aug 16, 2:58 PM EDT	Special Weather Statement	MLB	Martin, Saint Lucie	62 min

Nearby

Special Weather Statements in Florida, 2014 Every 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.