Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Miami, FL

May 27, 2011Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at May 27, 2011, 4:13 PM EDT for Palm Beach County, Florida. It was in force for 32 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
May 27, 2011, 4:13 PM EDT (20:13 UTC)
Expired
May 27, 2011, 4:45 PM EDT
In force
32 min
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 121 km from the middle of the area, began a volume at 20:14 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 12:00Z, 8.2 hours before the alert went out and 197 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-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2011-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 309 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2011-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
309 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1248 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
30 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 May 27, 2:38 PM EDT, 1 hour 35 minutes earlier.

Area forecast discussion, May 27, 2:38 PM EDT, 1 hour 35 minutes before
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Hazardous weather outlook, May 27, 9:24 AM EDT, 6 hours 49 minutes before
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In the hours before

Special weather statement, May 27, 1:27 PM EDT, 2 hours 46 minutes before
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Special weather statement, May 27, 2:17 PM EDT, 1 hour 56 minutes before
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Special weather statement, May 27, 2:31 PM EDT, 1 hour 42 minutes before
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Special weather statement, May 27, 3:53 PM EDT, 20 minutes before
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Special weather statement, May 27, 4:13 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 1:27 PM EDTSpecial Weather StatementMFLMiami-Dade48 min
May 27, 2:17 PM EDTSpecial Weather StatementMFLGlades28 min
May 27, 2:31 PM EDTSpecial Weather StatementMFLBroward44 min
May 27, 3:53 PM EDTSpecial Weather StatementMFLPalm Beach22 min

Nearby

Special Weather Statements in Florida, 2011Every 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.