Alert archive / Florida / Special Weather Statements in 2016

Special Weather Statement, NWS Melbourne, FL

September 2, 2016Seminole County, Florida

NWS Melbourne, FL issued this special weather statement at Sep 2, 2016, 4:18 PM EDT for Seminole County, Florida. It was in force for 42 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 2, 2016, 4:18 PM EDT (20:18 UTC)
Expired: Sep 2, 2016, 5:00 PM EDT
In force: 42 min
Issued by: NWS Melbourne, FL

County Seminole County, FL

The radar

The Melbourne radar (KMLB), 89 km from the middle of the area, began a volume at 20:21 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

Jacksonville, FL (KJAX), launched 12:00Z, 8.3 hours before the alert went out and 198 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: 635 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 623 m²/s²
0-3 km storm-relative helicity: 630 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 13.0

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 2, 3:35 PM EDT, 43 minutes earlier.

Area forecast discussion, Sep 2, 3:35 PM EDT, 43 minutes before

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Hazardous weather outlook, Sep 2, 3:21 PM EDT, 57 minutes before

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In the hours before

Special weather statement, Sep 2, 10:27 AM EDT, 5 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1027 AM EDT FRI SEP 2 2016

FLZ047-053-054-058-059-147-021530-
NORTHERN BREVARD COUNTY FL-SOUTHERN BREVARD COUNTY FL-OSCEOLA FL-
OKEECHOBEE FL-ST. LUCIE FL-INDIAN RIVER FL-
1027 AM EDT FRI SEP 2 2016

...SIGNIFICANT WEATHER ADVISORY FOR ST. LUCIE...OKEECHOBEE...INDIAN
RIVER...EASTERN OSCEOLA AND BREVARD COUNTIES UNTIL 1130 AM EDT...

AT 1026 AM EDT...DOPPLER RADAR WAS TRACKING A STRONG LINE OF SHOWERS
WITH EMBEDDED THUNDER ALONG A LINE EXTENDING FROM NEAR ROCKLEDGE TO
NEAR SYLVAN SHORES. MOVEMENT WAS NORTHEAST AT 35 MPH.

WIND GUSTS LOCALLY OF 40 TO 50 MPH WILL BE POSSIBLE WITH THESE
SHOWERS AND STORMS.

LOCATIONS IMPACTED INCLUDE...
PORT SAINT LUCIE...PALM BAY...MELBOURNE...FORT PIERCE AND ROCKLEDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

&&

LAT...LON 2718 8074 2721 8081 2714 8087 2723 8099
      2730 8100 2733 8105 2736 8103 2739 8112
      2752 8121 2760 8114 2771 8115 2834 8097
      2835 8087 2836 8087 2849 8051 2845 8049
      2839 8056 2834 8057 2813 8054 2732 8018
TIME...MOT...LOC 1426Z 235DEG 46KT 2829 8081 2728 8131

SEDLOCK

Local storm report, Sep 2, 12:23 PM EDT, 3 hours 55 minutes before

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Special weather statement, Sep 2, 4:18 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, 8:09 PM EDT	Special Weather Statement	MLB	Lake	66 min
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, 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.