Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Miami, FL

August 25, 2011Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Aug 25, 2011, 9:11 PM EDT for Palm Beach County, Florida. It was in force for 34 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 25, 2011, 9:11 PM EDT (01:11 UTC)
Expired: Aug 25, 2011, 9:45 PM EDT
In force: 34 min
Issued by: NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 134 km from the middle of the area, began a volume at 01:14 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, 1.2 hours before the alert went out and 192 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: 964 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 777 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 46 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 Miami, FL wrote its last area forecast discussion before this special weather statement went out at Aug 25, 7:50 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, Aug 25, 7:50 PM EDT, 1 hour 21 minutes before

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Hazardous weather outlook, Aug 25, 5:55 PM EDT, 3 hours 16 minutes before

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In the hours before

Special weather statement, Aug 25, 5:08 PM EDT, 4 hours 3 minutes before

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Local storm report, Aug 25, 5:17 PM EDT, 3 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
517 PM EDT THU AUG 25 2011

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

0425 PM     NON-TSTM WND GST 4 N LAKE WORTH          26.68N 80.06W
08/25/2011  M46.00 MPH       PALM BEACH         FL   MESONET

            MEASURED BY WEATHERBUG SITE AT CONNISTON MIDDLE SCHOOL.

0430 PM     NON-TSTM WND GST 3 ESE LAKE WORTH        26.61N 80.03W
08/25/2011  M51.00 MPH       AMZ650             FL   C-MAN STATION

            MEASURED AT LAKE WORTH C-MAN STATION...LKWF1. SUSTAINED
            WIND 38 MPH.

0430 PM     NON-TSTM WND GST 3 ENE BOYNTON BEACH     26.55N 80.05W
08/25/2011  M39.00 MPH       AMZ650             FL   MESONET

            MEASURED BY WXFLOW SITE IN BOYNTON BEACH.

0435 PM     NON-TSTM WND GST 1 ESE BOYNTON BEACH     26.52N 80.07W
08/25/2011  M48.00 MPH       PALM BEACH         FL   MESONET

            MEASURED BY WEATHERBUG SITE AT FOREST PARK ELEMENTARY
            SCHOOL.

0440 PM     NON-TSTM WND GST DELRAY BEACH            26.46N 80.09W
08/25/2011  M44.00 MPH       PALM BEACH         FL   MESONET

            MEASURED BY WEATHERBUG SITE AT DELRAY BEACH FIRE RESCUE.

0445 PM     NON-TSTM WND GST 4 NNE BOCA RATON        26.41N 80.08W
08/25/2011  M47.00 MPH       PALM BEACH         FL   MESONET

            MEASURED BY WEATHERBUG SITE AT ADVENT LUTHERAN SCHOOL.

0456 PM     NON-TSTM WND GST 1 N BOCA RATON          26.38N 80.10W
08/25/2011  M41.00 MPH       PALM BEACH         FL   ASOS

            MEASURED AT BOCA RATON AIRPORT. REPORT BY FLORIDA
            ATLANTIC UNIVERSITY STAFF OF TWO AND A HALF INCH DIAMETER
            BRANCHES BROKEN AT CAMPUS NEAR AIRPORT.

&&

MOLLEDA

Local storm report, Aug 25, 5:38 PM EDT, 3 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
538 PM EDT THU AUG 25 2011

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

0500 PM     TSTM WND GST     DEERFIELD BEACH         26.31N 80.10W
08/25/2011  M42.00 MPH       BROWARD            FL   BROADCAST MEDIA

            A WIND GUST OF 36 KTS...OR 42 MPH...WAS RECORDED BY A
            BROADCAST MEDIA MESONET SITE IN DEERFIELD BEACH AT 500 PM
            EDT.

0507 PM     TSTM WND GST     POMPANO BEACH           26.23N 80.12W
08/25/2011  M45.00 MPH       BROWARD            FL   ASOS

            A WIND GUST OF 39 KTS...OR 45 MPH...WAS RECORDED BY THE
            ASOS AT POMPANO BEACH AIRPARK AT 507 PM EDT.

0515 PM     TSTM WND GST     FORT LAUDERDALE BEACH   26.13N 80.11W
08/25/2011  M41.00 MPH       BROWARD            FL   BROADCAST MEDIA

            A WIND GUST OF 36 KTS...OR 41 MPH...WAS RECORDED BY A
            BROADCAST MEDIA MESONET SITE IN FORT LAUDERDALE BEACH AT
            515 PM EDT.

&&

ROSS

Local storm report, Aug 25, 6:05 PM EDT, 3 hours 6 minutes before

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Local storm report, Aug 25, 7:38 PM EDT, 1 hour 33 minutes before

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Special weather statement, Aug 25, 9:11 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Lasted
Aug 25, 8:52 PM EDT	Special Marine Warning	MFL	53 min
Aug 25, 9:40 PM EDT	Special Marine Warning	MFL	50 min
Aug 26, 1:58 PM EDT	Small Craft Advisory	MFL	18 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.