Alert archive / Florida / Special Weather Statements in 2016

Special Weather Statement, NWS Melbourne, FL

September 1, 2016Lake County, Florida

NWS Melbourne, FL issued this special weather statement at Sep 1, 2016, 8:09 PM EDT for Lake County, Florida. It was in force for 66 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: Sep 1, 2016, 8:09 PM EDT (00:09 UTC)
Expired: Sep 1, 2016, 9:15 PM EDT
In force: 66 min
Issued by: NWS Melbourne, FL

County Lake County, FL

The radar

The Melbourne radar (KMLB), 132 km from the middle of the area, began a volume at 00:11 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 00:00Z, 0.2 hours before the alert went out and 125 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: 1297 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

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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 Sep 1, 5:48 PM EDT, 2 hours 21 minutes earlier.

Area forecast discussion, Sep 1, 5:48 PM EDT, 2 hours 21 minutes before

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Hazardous weather outlook, Sep 1, 6:35 PM EDT, 1 hour 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
635 PM EDT THU SEP 1 2016

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-021000-
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-
635 PM EDT THU SEP 1 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TONIGHT.

.THUNDERSTORM IMPACT...
A TORNADO WATCH IS IN EFFECT FOR LAKE, VOLUSIA, SEMINOLE, ORANGE,
OSCEOLA, AND BREVARD COUNTIES THROUGH 1100 PM EDT.

VERY MOIST AIR AND INCREASING LOW-LEVEL WINDS ON THE EASTERN
PERIPHERY OF HURRICANE HERMINE WILL CONTRIBUTE TO A POTENTIAL FOR
A FEW TORNADOES, ESPECIALLY WITHIN SQUALLS THAT MOVE FROM WEST TO
EAST ACROSS THE AREA THIS EVENING AND OVERNIGHT TONIGHT.
OTHERWISE, QUICK-MOVING STORMS WILL BE CAPABLE OF PRODUCING VERY
HEAVY RAINFALL, OCCASIONAL LIGHTNING, AND INCREASINGLY GUSTY WINDS
BETWEEN 40 AND 50 MPH. STORM MOTION WILL BE FAST TOWARDS THE
NORTHEAST AT 30 TO 40 MPH.

.FLOOD IMPACT...
LOCALIZED HEAVY RAIN AMOUNTS OF ONE TO TWO INCHES WILL BE
POSSIBLE DUE TO THE POSSIBILITY OF TRAINING HEAVY SHOWERS AND
ISOLATED LIGHTNING STORMS. THIS CAN LEAD TO STANDING WATER IN LOW
SPOTS AND ON ROADWAYS.

.HIGH WIND IMPACT...
WHILE SUSTAINED TROPICAL STORM FORCE WINDS ARE CURRENTLY NOT
FORECAST OVER EAST CENTRAL FLORIDA, WINDS BETWEEN 25 TO 30 MPH
ARE EXPECTED TO DEVELOP OVER VOLUSIA AND NORTHERN LAKE COUNTIES
OVERNIGHT. FURTHER TO THE SOUTH, SUSTAINED WINDS UP TO 20 MPH ARE
EXPECTED. WINDS WILL BE GUSTY INTO FRIDAY MORNING, ESPECIALLY
WITHIN FAST-MOVING SHOWERS AND THUNDERSTORMS.

.MARINE THUNDERSTORM GUST IMPACT...
FAST MOVING SHOWERS AND A FEW LIGHTNING STORMS ARE EXPECTED TO
MOVE OVER INLAND AREAS AND THE ATLANTIC WATERS THIS EVENING AND
OVERNIGHT AS OUTER RAINBANDS ON THE EASTERN SIDE OF HURRICANE
HERMINE MOVE OVER THE STATE. WIND GUSTS IN EXCESS OF 35 KNOTS WILL
BE POSSIBLE WITH LOCALLY HIGHER WAVES ON AREA LAKES, THE
INTRACOASTAL WATER WAYS, AND NEAR SHORE ATLANTIC WATERS. STORM
MOTION WILL BE TOWARD THE NORTHEAST AT 30 TO 40 KNOTS.

.WATERSPOUT IMPACT...
MARINE INTERESTS SHOULD ALSO BE ALERT FOR THE POTENTIAL OF
WATERSPOUTS THIS EVENING AND OVERNIGHT TONIGHT.

.WIND AND SEA IMPACT...
WINDS AND SEAS ARE EXPECTED TO INCREASE QUICKLY OVERNIGHT AND INTO
FRIDAY MORNING. A TROPICAL STORM WARNING IS IN EFFECT FOR THE
VOLUSIA COUNTY COASTAL WATERS WHERE WINDS WILL INCREASE TO 25 TO
35 KNOTS WITH FREQUENT GUSTS TO TROPICAL STORM FORCE EXPECTED.
SEAS WILL BUILD UP TO 8 FEET, ESPECIALLY OFFSHORE AND NORTH OF
CAPE CANAVERAL. FURTHER TO THE SOUTH, SMALL CRAFT ADVISORY
CONDITIONS ARE EXPECTED WITH WINDS BUILDING TO 20 TO 25 KNOTS AND
SEAS UP TO 6 FEET.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
AN ELEVATED THREAT FOR LIGHTNING STORMS WILL EXIST INTO THE
WEEKEND WITH PERHAPS LOWER THAN NORMAL CHANCES RETURNING BY EARLY
NEXT WEEK. THREATS FROM STORMS INCLUDE LIGHTNING, TORRENTIAL
DOWNPOURS, AND GUSTY WINDS. SMALL CRAFT BOATING WILL REMAIN POOR
TO HAZARDOUS INTO FRIDAY BEFORE FAVORABLE CONDITIONS RETURN FOR
THE WEEKEND AND INTO EARLY NEXT WEEK.

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

ULRICH

In the hours before

Special weather statement, Sep 1, 3:53 PM EDT, 4 hours 16 minutes before

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Special weather statement, Sep 1, 3:59 PM EDT, 4 hours 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
359 PM EDT THU SEP 1 2016

FLZ053-012045-
OSCEOLA-
359 PM EDT THU SEP 1 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT OSCEOLA COUNTY...

AT 359 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS WERE LOCATED
ALONG A LINE EXTENDING FROM NEAR LAKE KISSIMMEE TO NEAR KENANSVILLE.
MOVEMENT WAS NORTH AT 50 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SAINT CLOUD...HOLOPAW...NARCOOSSEE...LAKE KISSIMMEE AND KENANSVILLE.

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. IF THIS TREND
CONTINUES...A TORNADO WARNING MAY BE ISSUED SHORTLY. STAY TUNED TO
NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND
POSSIBLE WARNINGS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR EAST CENTRAL
FLORIDA.

LAT...LON 2807 8137 2807 8135 2808 8135 2809 8137
      2834 8133 2834 8086 2764 8088 2764 8112
      2768 8115 2771 8115 2773 8117 2774 8116
      2782 8121 2785 8124 2786 8130 2792 8131
      2794 8135 2795 8134 2799 8138
TIME...MOT...LOC 1959Z 194DEG 42KT 2798 8132 2780 8101

BRAGAW

Local storm report, Sep 1, 5:46 PM EDT, 2 hours 23 minutes before

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Local storm report, Sep 1, 5:52 PM EDT, 2 hours 17 minutes before

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Local storm report, Sep 1, 6:23 PM EDT, 1 hour 46 minutes before

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Special weather statement, Sep 1, 8:09 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 8:28 PM EDT	Tornado Warning	MLB	Lake	32 min
Sep 1, 8:34 PM EDT	Tornado Warning	MLB	Lake, Orange	26 min
Sep 1, 9:02 PM EDT	Tornado Warning	MLB	Orange, Seminole	28 min
Sep 1, 9:05 PM EDT	Special Weather Statement	MLB	Orange	55 min
Sep 2, 4:39 AM EDT	Special Weather Statement	MLB	Lake	51 min
Sep 2, 5:30 AM EDT	Special Weather Statement	MLB	Lake, Orange, Seminole, Volusia	60 min
Sep 2, 5:36 AM EDT	Severe Thunderstorm Warning	MLB	Orange, Osceola	24 min
Sep 2, 6:32 AM EDT	Special Weather Statement	MLB	Lake	43 min
Sep 2, 7:39 AM EDT	Special Marine Warning	MLB		3 hr
Sep 2, 7:44 AM EDT	Special Weather Statement	MLB	Orange	46 min
Sep 2, 7:47 AM EDT	Lake Wind Advisory	MLB	Okeechobee, Osceola	8 hr
Sep 2, 9:33 AM EDT	Special Weather Statement	MLB	Brevard, Osceola	57 min
Sep 2, 10:23 AM EDT	Special Marine Warning	MLB		3 hr
Sep 2, 10:27 AM EDT	Special Weather Statement	MLB	Brevard, Indian River, Okeechobee, Saint Lucie	63 min
Sep 2, 4:18 PM EDT	Special Weather Statement	MLB	Seminole	42 min
Sep 2, 5:56 PM EDT	Special Weather Statement	MLB	Flagler	34 min
Sep 2, 6:33 PM EDT	Special Weather Statement	MLB	Volusia	27 min

Nearby

Special Weather Statements in Florida, 2016 Every special weather statement 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.