Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Melbourne, FL

July 10, 2012Lake County, Orange County, Florida

NWS Melbourne, FL issued this special weather statement at Jul 10, 2012, 3:38 PM EDT for Lake County, Orange County, Florida. It was in force for 52 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: Jul 10, 2012, 3:38 PM EDT (19:38 UTC)
Expired: Jul 10, 2012, 4:30 PM EDT
In force: 52 min
Issued by: NWS Melbourne, FL

Counties Lake County, FL, Orange County, FL

The radar

The Melbourne radar (KMLB), 134 km from the middle of the area, began a volume at 19:40 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, 7.6 hours before the alert went out and 121 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: 155 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1314 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 35 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 Jul 10, 3:36 PM EDT, 2 minutes earlier.

Area forecast discussion, Jul 10, 3:36 PM EDT, 2 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Jul 10, 11:23 AM EDT, 4 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
1123 AM EDT TUE JUL 10 2012

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-102000-
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-
1123 AM EDT TUE JUL 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
THE HIGH PRESSURE RIDGE AXIS ACROSS CENTRAL FLORIDA WILL ALLOW
THE EAST COAST SEA BREEZE TO PUSH INLAND FASTER ACROSS SOUTHERN
SECTIONS...WITH A SLOWER DRIFT OF THE BOUNDARY INLAND TO THE NORTH.
A FEW STORMS MAY FORM ALONG THE BOUNDARY THROUGH MID AFTERNOON...
THEN STORMS WILL INCREASE OVER THE INTERIOR INTO THE LATE AFTERNOON
AS THE EAST AND WEST COAST BOUNDARIES COLLIDE. STORM MOTION WILL BE
TOWARD THE NORTH-NORTHWEST AT 5 TO 10 MPH.

THE MAIN DANGER WITH ANY STORM TODAY WILL BE DEADLY CLOUD TO
GROUND LIGHTNING THAT CAN STRIKE YOU EVEN WHEN A STORM IS NOT
OVERHEAD. HIGH TEMPERATURES REACHING THE MID 90S AND LINGERING
COOL AIR ALOFT MAY ALLOW A FEW STRONG TO MARGINALLY SEVERE STORMS
OVER THE INTERIOR SECTIONS LATE THIS AFTERNOON. THE MAIN THREATS
WITH STRONGER STORMS WILL BE DAMAGING WINDS UP TO 60 MPH AND HAIL
TO THE SIZE OF COINS...ESPECIALLY FROM OSCEOLA COUNTY NORTH INTO
LAKE AND INTERIOR VOLUSIA COUNTIES...INCLUDING METRO ORLANDO.

.FLOOD IMPACT...
SLOW STORM MOTION TOWARD THE NORTH OR NORTHWEST COMBINED WITH
CELLS TRAINING OVER THE SAME AREAS WILL PRODUCE UP TO 3 INCHES OF
RAIN IN A COUPLE HOURS OVER PORTIONS OF THE INTERIOR COUNTIES...
INCLUDING OSCEOLA...ORANGE...LAKE...SEMINOLE AND INTERIOR VOLUSIA.
SUCH HEAVY RAINFALL WOULD CAUSE TEMPORARY FLOODING OF SOME ROADS
AND POOR DRAINAGE AREAS...ESPECIALLY OVER URBAN LOCATIONS.

.RIP CURRENT IMPACT...
A SMALL LONG PERIOD EAST SWELL WILL PRODUCE AN ELEVATED THREAT FOR
RIP CURRENTS AT THE BEACHES OF EAST CENTRAL FLORIDA. ALWAYS SWIM
WITHIN SIGHT OF A LIFEGUARD.

.MARINE THUNDERSTORM GUST IMPACT...
THE HIGHEST COVERAGE AND INTENSITY OF MARINE STORMS IS EXPECTED
OVER THE INTERIOR LAKES THIS AFTERNOON. A FEW STORMS MAY PRODUCE
STRONG WINDS OF 35 TO 45 KNOTS...HAIL AND FREQUENT CLOUD TO WATER
LIGHTNING. STORMS WILL MOVE TO THE NORTH-NORTHWEST AT 5 TO 10 MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
AN ELEVATED RIP CURRENT RISK WILL PERSIST MUCH OF THIS WEEK.

SCATTERED LIGHTNING STORMS ARE EXPECTED EACH AFTERNOON FOCUSED
OVER THE INTERIOR SECTIONS. FREQUENT TO EXCESSIVE LIGHTNING
STRIKES AND LOCALLY HEAVY RAIN SHOULD BE THE PRIMARY THREATS.

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

KELLY/GLITTO

In the hours before

Special weather statement, Jul 10, 2:49 PM EDT, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
249 PM EDT TUE JUL 10 2012

FLZ053-101930-
OSCEOLA-
249 PM EDT TUE JUL 10 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR SMALL HAIL OVER
OSCEOLA COUNTY...

* UNTIL 330 PM EDT.

AT 246 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG STORM CAPABLE OF PRODUCING UP TO NICKEL SIZED HAIL OVER LAKE
KISSIMMEE...MOVING NORTHWEST AT 5 TO 10 MPH. OTHER STORMS WERE
INCREASING OVER OSCEOLA COUNTY...AND A FEW OF THESE STORMS MAY
CONTAIN FREQUENT CLOUD TO GROUND LIGHTNING AND STRONG WIND GUSTS
OF 40 TO 50 MPH...IN ADDITION TO HAIL.

LAT...LON 2834 8116 2784 8091 2774 8117 2783 8122
      2786 8131 2792 8132 2800 8139 2800 8142
      2803 8145 2805 8147 2806 8145 2802 8138
      2808 8135 2808 8145 2814 8146 2814 8153
      2820 8153 2825 8156 2826 8162 2834 8166
TIME...MOT...LOC 1847Z 128DEG 6KT 2796 8124

52

Special weather statement, Jul 10, 3:38 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
338 PM EDT TUE JUL 10 2012

FLZ041-044>046-053-144-102030-
INLAND VOLUSIA COUNTY-NORTHERN LAKE
COUNTY-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN LAKE COUNTY-
338 PM EDT TUE JUL 10 2012

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER LAKE COUNTY...ORANGE
COUNTY...NORTHWESTERN OSCEOLA COUNTY...WESTERN SEMINOLE COUNTY...
WESTERN VOLUSIA COUNTY...

* UNTIL 430 PM EDT.

AT 335 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL OVER ORLANDO
INTERNATIONAL AIRPORT...MOVING NORTHWEST AT 10 MPH.

OTHER STORMS ARE EXPECTED TO STRENGTHEN OVER THE INTERIOR SECTIONS
THROUGH THE LATE AFTERNOON.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.

LAT...LON 2896 8196 2896 8166 2905 8166 2905 8164
      2928 8165 2932 8168 2938 8145 2940 8143
      2940 8142 2927 8141 2927 8134 2924 8132
      2829 8116 2829 8166 2834 8167 2835 8196
TIME...MOT...LOC 1936Z 130DEG 9KT 2842 8133

52

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 2:49 PM EDT	Special Weather Statement	MLB	Osceola	41 min

Nearby

Special Weather Statements in Florida, 2012 Every special weather statement in 2012

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.