Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Jacksonville, FL

July 30, 2012Hamilton County, Florida

NWS Jacksonville, FL issued this special weather statement at Jul 30, 2012, 8:41 AM EDT for Hamilton 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
Jul 30, 2012, 8:41 AM EDT (12:41 UTC)
Expired
Jul 30, 2012, 9:15 AM EDT
In force
34 min
Issued by
NWS Jacksonville, FL

County Hamilton County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.7 hours before the alert went out and 114 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, Tallahassee Rgnl, FL at 12:00Z on 2012-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3159 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, Tallahassee Rgnl, FL at 12:00Z on 2012-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
3159 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
518 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
73 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 Jacksonville, FL wrote its last area forecast discussion before this special weather statement went out at Jul 30, 6:00 AM EDT, 2 hours 41 minutes earlier.

Area forecast discussion, Jul 30, 6:00 AM EDT, 2 hours 41 minutes before
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Hazardous weather outlook, Jul 30, 4:24 AM EDT, 4 hours 17 minutes before
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In the hours before

Special weather statement, Jul 30, 8:41 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 11:07 AM EDTSpecial Weather StatementJAXMarion38 min
Jul 30, 11:10 AM EDTSpecial Weather StatementJAXPutnam35 min
Jul 30, 11:12 AM EDTSpecial Weather StatementJAXBaker, Columbia, Union48 min
Jul 30, 11:39 AM EDTSpecial Weather StatementJAXNassau36 min
Jul 30, 11:44 AM EDTSpecial Weather StatementJAXPutnam46 min
Jul 30, 11:48 AM EDTSpecial Weather StatementJAXFlagler42 min
Jul 30, 12:02 PM EDTSpecial Weather StatementJAXBradford, Union43 min
Jul 30, 12:09 PM EDTSpecial Weather StatementJAXSuwannee51 min
Jul 30, 12:12 PM EDTSpecial Weather StatementJAXAlachua48 min
Jul 30, 12:23 PM EDTSpecial Weather StatementJAXDuval52 min
Jul 30, 12:26 PM EDTSpecial Marine WarningJAX2 hr
Jul 30, 12:28 PM EDTSpecial Weather StatementJAXPutnam47 min
Jul 30, 12:53 PM EDTSpecial Weather StatementJAXClay52 min
Jul 30, 12:54 PM EDTSpecial Weather StatementJAXGilchrist51 min
Jul 30, 1:01 PM EDTSpecial Weather StatementJAXSuwannee44 min
Jul 30, 1:16 PM EDTSpecial Weather StatementJAXSaint Johns59 min
Jul 30, 1:25 PM EDTSpecial Weather StatementJAXDuval50 min
Jul 30, 1:32 PM EDTSpecial Marine WarningJAX58 min
Jul 30, 2:14 PM EDTSpecial Weather StatementJAXNassau46 min
Jul 30, 2:27 PM EDTSpecial Marine WarningJAX93 min
Jul 30, 2:35 PM EDTSevere Thunderstorm WarningJAXNassau40 min
Jul 30, 3:08 PM EDTSevere Thunderstorm WarningJAXNassau52 min
Jul 30, 3:47 PM EDTSevere Thunderstorm WarningJAXNassau43 min
Jul 30, 3:58 PM EDTSpecial Weather StatementJAXMarion47 min
Jul 30, 4:17 PM EDTSpecial Weather StatementJAXNassau43 min
Jul 30, 4:25 PM EDTSpecial Weather StatementJAXMarion50 min
Jul 29, 10:15 PM EDTSpecial Weather StatementJAXAppling45 min
Jul 30, 12:47 PM EDTSpecial Weather StatementJAXCamden28 min
Jul 30, 12:48 PM EDTSpecial Weather StatementJAXBrantley42 min
Jul 30, 1:41 PM EDTSpecial Weather StatementJAXCamden49 min
Jul 30, 2:32 PM EDTSpecial Weather StatementJAXCharlton43 min
Jul 30, 2:44 PM EDTSpecial Weather StatementJAXCharlton46 min
Jul 30, 4:07 PM EDTSpecial Weather StatementJAXCharlton38 min
Jul 30, 7:26 PM EDTSpecial Weather StatementJAXWayne49 min

Nearby

Special Weather Statements in Florida, 2012Every special weather statement in 2012

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.