Alert archive / Florida / Special Weather Statements in 2015

Special Weather Statement, NWS Melbourne, FL

August 1, 2015Osceola County, Florida

NWS Melbourne, FL issued this special weather statement at Aug 1, 2015, 7:34 PM EDT for Osceola County, Florida. It was in force for 26 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 1, 2015, 7:34 PM EDT (23:34 UTC)
Expired
Aug 1, 2015, 8:00 PM EDT
In force
26 min
Issued by
NWS Melbourne, FL

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 44 km from the middle of the area, began a volume at 23:33 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, 11.6 hours before the alert went out and 84 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 2015-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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 2015-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
131 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
1141 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
44 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 1, 3:30 PM EDT, 4 hours 4 minutes earlier.

Area forecast discussion, Aug 1, 3:30 PM EDT, 4 hours 4 minutes before
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Hazardous weather outlook, Aug 1, 5:02 AM EDT, 14 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
502 AM EDT SAT AUG 1 2015

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-012300-
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-
502 AM EDT SAT AUG 1 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
ONGOING SHOWERS AND STORMS ACROSS WEST FLORIDA WILL QUICKLY PUSH
EASTWARD THIS MORNING AND EARLY AFTERNOON WITH ADDITIONAL
LIGHTNING STORMS DEVELOPING IN THE VERY MOIST AND UNSTABLE
ATMOSPHERE ACROSS CENTRAL FLORIDA. COVERAGE OF SHOWERS AND STORMS
WILL INCREASE ACROSS THE AREA THROUGH THE AFTERNOON AND EARLY
EVENING WITH NUMEROUS BOUNDARY COLLISIONS.

SLIGHTLY COOLER TEMPERATURES ALOFT WILL ALLOW FOR A FEW STRONGER
STORMS THAT MAY PRODUCE FREQUENT LIGHTNING AND WIND GUSTS UP TO
50 MPH...ESPECIALLY ALONG STORM OUTFLOWS AND BOUNDARY COLLISIONS.
LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH ACTIVITY LATER THIS
AFTERNOON WHICH MAY LEAD TO PONDING OF WATER ALONG ROADWAYS AND
MINOR FLOODING OF LOW LYING AREAS.

.RIP CURRENT IMPACT...
A SMALL EASTERLY SWELL ALONG WITH THE FULL MOON WILL LEAD TO A
MODERATE THREAT FOR RIP CURRENTS NORTH OF CAPE CANAVERAL AND A LOW
THREAT ALONG THE BREVARD AND TREASURE COASTS. THE THREAT WILL BE
GREATEST FROM LATE MORNING THROUGH LATE AFTERNOON DUE TO TIDAL
EFFECTS. ALWAYS SWIM NEAR A LIFEGUARD.

.MARINE THUNDERSTORM GUST IMPACT...
SCATTERED STORMS WILL BE CAPABLE OF PRODUCING STRONG WIND GUSTS
OVER 34 KNOTS. STORM MOTION WILL BE TO THE EAST OR NORTHEAST AT 15
TO 20 KNOTS. MARINERS SHOULD REMEMBER THAT STRONG WINDS MAY
ARRIVE WELL AHEAD OF RAIN AND LIGHTNING.

INLAND LAKES ARE NOT IMMUNE FROM THE EFFECTS OF STRONG STORMS AND
HAZARDOUS BOATING CONDITIONS CAN QUICKLY DEVELOP OVER LAKES WITH
GUSTY WINDS AND FREQUENT LIGHTNING. BE PREPARED TO SEEK SAFE
HARBOR WELL BEFORE A STORM APPROACHES YOUR AREA.

.WIND AND SEA IMPACT...
SOUTH TO SOUTHWEST WINDS OF 15 TO 20 KNOTS OFFSHORE AND NORTH OF
SEBASTIAN INLET WILL PROMOTE POOR BOATING CONDITIONS FOR SMALL
CRAFT. SMALL CRAFT SHOULD EXERCISE CAUTION HERE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
A MOIST SOUTH TO SOUTHWEST WIND FLOW WILL KEEP THE COVERAGE OF
AFTERNOON STORMS GREATER THAN NORMAL SUNDAY AND EARLY NEXT WEEK. A
LOWER BUT MORE SEASONAL COVERAGE OF SHOWERS AND STORMS RETURNS TO
THE FORECAST FROM MID WEEK INTO LAKE WORK WEEK.

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

SEDLOCK

In the hours before

Special weather statement, Aug 1, 2:03 PM EDT, 5 hours 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
203 PM EDT SAT AUG 1 2015

FLZ045>047-053-141-147-011900-
OSCEOLA FL-NORTHERN BREVARD COUNTY FL-ORANGE FL-
SOUTHERN BREVARD COUNTY FL-COASTAL VOLUSIA COUNTY FL-SEMINOLE FL-
203 PM EDT SAT AUG 1 2015

...SIGNIFICANT WEATHER ADVISORY FOR BREVARD...SOUTHEASTERN ORANGE...
SOUTHEASTERN VOLUSIA...NORTHEASTERN OSCEOLA AND EASTERN SEMINOLE
COUNTIES UNTIL 300 PM EDT...

AT 202 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM EDGEWATER TO AVALON PARK TO
NEAR PALM BAY...AND MOVING EAST AT 20 MPH.

WIND GUSTS 40 TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
ORLANDO...PALM BAY...MELBOURNE...TITUSVILLE AND OVIEDO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING AND STRONG WIND
GUSTS...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 2846 8052 2838 8063 2841 8059 2859 8072
      2795 8050 2808 8058 2808 8060 2795 8053
      2794 8090 2845 8131 2910 8096
TIME...MOT...LOC 1802Z 261DEG 17KT 2899 8089 2850 8114 2794 8073

LASCODY
Local storm report, Aug 1, 2:22 PM EDT, 5 hours 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
222 PM EDT SAT AUG 01 2015

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

0124 PM     TSTM WND GST     DAYTONA BEACH AIRPORT   29.17N 81.07W
08/01/2015  M39 MPH          VOLUSIA            FL   ASOS

&&

PG
Local storm report, Aug 1, 2:30 PM EDT, 5 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
230 PM EDT SAT AUG 01 2015

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

0225 PM     TSTM WND GST     4 NNE PORT SAINT JOHN   28.53N 80.77W
08/01/2015  M47 MPH          AMZ552             FL   OTHER FEDERAL

&&

PG
Local storm report, Aug 1, 2:55 PM EDT, 4 hours 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
255 PM EDT SAT AUG 01 2015

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

0240 PM     TSTM WND GST     8 SSE PLAYALINDA BEACH  28.54N 80.57W
08/01/2015  M43.00 MPH       BREVARD            FL   OTHER FEDERAL

            USAF WIND TOWER KSC0108.

0240 PM     TSTM WND GST     3 SSW PLAYALINDA BEACH  28.60N 80.64W
08/01/2015  M44.00 MPH       BREVARD            FL   OTHER FEDERAL

            USAF WIND TOWER KSC0311.

0240 PM     TSTM WND GST     3 SW PLAYALINDA BEACH   28.61N 80.67W
08/01/2015  M40.00 MPH       BREVARD            FL   OTHER FEDERAL

            USAF WIND TOWER KSC0412.

0240 PM     TSTM WND GST     5 SSE PLAYALINDA BEACH  28.57N 80.59W
08/01/2015  M51.00 MPH       BREVARD            FL   OTHER FEDERAL

            USAF WIND TOWER KSC110.

0245 PM     TSTM WND GST     4 N HAULOVER CANAL      28.80N 80.74W
08/01/2015  M43.00 MPH       VOLUSIA            FL   OTHER FEDERAL

            USAF WIND TOWER KSC0022.

&&

PG
Special weather statement, Aug 1, 4:02 PM EDT, 3 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
402 PM EDT SAT AUG 1 2015

FLZ059-064-012100-
MARTIN-ST. LUCIE-
402 PM EDT SAT AUG 1 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT MARTIN...ST. LUCIE...

AT 359 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM WHITE CITY TO NEAR INDIANTOWN...AND MOVING NORTH-
NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
PORT SAINT LUCIE...WALTON...FORT PIERCE...STUART AND INDIANTOWN.

FUNNEL CLOUDS CAN OCCASIONALLY TOUCH DOWN AND PRODUCE BRIEF...SMALL
TORNADOES. MOVE INDOORS AND STAY AWAY FROM WINDOWS.

LOCAL ATMOSPHERIC CONDITIONS ARE BECOMING MORE FAVORABLE FOR THE
POSSIBILITY OF LANDSPOUT FORMATION. A LANDSPOUT IS A TORNADO OF VERY
SHORT DURATION AND WINDS GENERALLY LESS THAN 60 MPH WHICH CAN CAUSE
MINOR DAMAGE AND INJURIES IN ITS DIRECT PATH.

IN ADDITION...STRONG DOWNBURST WINDS AROUND 40 MPH MAY OCCUR EAST OF
A LINE FROM PORT MAYACA TO FORT PIERCE.

LAT...LON 2696 8061 2697 8061 2756 8032 2721 8017
      2734 8026 2733 8027 2718 8019 2722 8022
      2720 8026 2725 8032 2724 8032 2717 8026
      2719 8026 2716 8016 2718 8017 2718 8016
      2697 8008
TIME...MOT...LOC 1959Z 187DEG 11KT 2736 8035 2699 8047

BRAGAW
Special weather statement, Aug 1, 7:34 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
Aug 1, 12:04 PM EDTSpecial Weather StatementMLBLake, Orange56 min
Aug 1, 12:11 PM EDTSpecial Weather StatementMLBOkeechobee, Osceola64 min
Aug 1, 12:59 PM EDTSpecial Weather StatementMLBBrevard, Indian River, Okeechobee, Orange, Osceola, Saint Lucie and 2 more61 min
Aug 1, 1:23 PM EDTSpecial Marine WarningMLB112 min
Aug 1, 2:03 PM EDTSpecial Weather StatementMLBBrevard, Seminole57 min
Aug 1, 3:32 PM EDTSpecial Marine WarningMLB58 min
Aug 1, 4:02 PM EDTSpecial Weather StatementMLBMartin58 min

Nearby

Special Weather Statements in Florida, 2015Every special weather statement in 2015

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.