Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Melbourne, FL

March 30, 20114 counties in Florida

NWS Melbourne, FL issued this special weather statement at Mar 30, 2011, 3:49 PM EDT for 4 counties in Florida. It was in force for 56 min. 11 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 30, 2011, 3:49 PM EDT (19:49 UTC)
Expired: Mar 30, 2011, 4:45 PM EDT
In force: 56 min
Issued by: NWS Melbourne, FL

Counties Brevard County, FL, Indian River County, FL, Osceola County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 14 km from the middle of the area, began a volume at 19:50 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.

What was reported inside it

Time	Report	Where	Remark
Mar 30, 4:10 PM EDT	HAIL 0.88	5 W Malabar, FL	SPOTTER REPORTED NICKEL HAIL POUNDING HIS HOUSE.
Mar 30, 4:15 PM EDT	HAIL 2	5 Wnw Malabar, FL	SPOTTER REPORTED HAIL UP TO 2 INCHES AND STRONG WINDS.
Mar 30, 4:18 PM EDT	TSTM WND DMG	Melbourne Beach, FL	ROOF RIPPED OFF HOUSE. TIME IS ESTIMATED BY RADAR.
Mar 30, 4:40 PM EDT	TSTM WND DMG	Titusville, FL	2-3 TREES DOWN ON I-95 SOUTH OF GARDEN ST.
Mar 30, 4:45 PM EDT	TSTM WND DMG	Lake Mary, FL	TREES DOWN ON 5 CARS IN WOFL PARKING LOT.
Mar 30, 4:45 PM EDT	TSTM WND DMG	Melbourne Beach, FL	BACK PORCH BLOWN OFF HOME.
Mar 30, 4:45 PM EDT	TSTM WND DMG	Sanford, FL	FENCE BLOWN ACROSS THE ROAD AND FIBERGLASS TABLETOP BLOWN OFF. FENCE POSTS SNAPPED OFF.
Mar 30, 4:45 PM EDT	TSTM WND DMG	Winter Springs, FL	8 HOMES DAMAGED NEAR LA VISTA WAY. EXTENT UNKNOWN.
Mar 30, 4:45 PM EDT	HAIL 1	Union Park, FL	NICKEL SIZE HAIL WITH QUARTER SIZE MIXED IN AT WATERFORD LAKES SHOPPING CENTER.
Mar 30, 4:48 PM EDT	TSTM WND GST 65	4 Nnw Lake Jessup, FL	KSFB AT ORLANDO SANFORD AIRPORT MEASURED 57 KT/65 MPH WIND GUST.
Mar 30, 4:55 PM EDT	TSTM WND DMG	1 Se Winter Park, FL	ONE LARGE OAK TREE UPROOTED AT CORNER OF DUNBLANE AND WHITEHALL. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.8 hours before the alert went out and 34 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: 305 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 800 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 200 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

209 
WWUS82 KMLB 301949
SPSMLB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
349 PM EDT WED MAR 30 2011

FLZ041-045>047-053-054-141-147-302045-
COASTAL VOLUSIA COUNTY-INDIAN RIVER-INLAND VOLUSIA COUNTY-NORTHERN
BREVARD COUNTY-ORANGE-OSCEOLA-SEMINOLE-SOUTHERN BREVARD COUNTY-
349 PM EDT WED MAR 30 2011

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH AND SMALL HAIL OVER BREVARD COUNTY...NORTHERN
INDIAN RIVER COUNTY...EASTERN ORANGE COUNTY...EASTERN OSCEOLA
COUNTY...SEMINOLE COUNTY...SOUTHEASTERN VOLUSIA COUNTY...

* UNTIL 445 PM EDT.

AT 345 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SEVERAL STORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL FROM 
CHULUOTA TO KENANSVILLE...MOVING NORTHEAST AT 30 MPH.

THE PRIMARY THREAT 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 OR CAUSE POWER OUTAGES. HEAVY RAINFALL WILL 
TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM 
PASSES.

TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES.

LAT...LON 2763 8078 2764 8101 2875 8140 2902 8088
      2861 8059 2861 8058 2846 8052 2840 8058
      2821 8059 2806 8055 2770 8036
TIME...MOT...LOC 1947Z 235DEG 28KT 2832 8093

$$


MOSES

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 3:47 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole, Volusia	73 min
Mar 30, 3:57 PM EDT	Special Marine Warning	MLB		93 min
Mar 30, 3:59 PM EDT	Tornado Warning	MLB	Lake	46 min
Mar 30, 4:02 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Indian River	43 min
Mar 30, 4:29 PM EDT	Special Marine Warning	MLB		2 hr
Mar 30, 4:43 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Lake, Orange, Osceola, Seminole, Volusia	62 min
Mar 30, 5:18 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola, Volusia	57 min
Mar 30, 5:30 PM EDT	Special Marine Warning	MLB		90 min
Mar 30, 6:13 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Indian River	44 min
Mar 30, 6:14 PM EDT	Special Marine Warning	MLB		91 min

Nearby

Special Weather Statements in Florida, 2011 Every special weather statement in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.