Alert archive / Florida / Special Weather Statements in 2020

Special Weather Statement, NWS Tallahassee, FL

July 21, 2020Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Jul 21, 2020, 2:25 PM CDT for Walton County, Florida. It was in force for 35 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 21, 2020, 2:25 PM CDT (19:25 UTC)
Expired
Jul 21, 2020, 3:00 PM CDT
In force
35 min
Issued by
NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 32 km from the middle of the area, began a volume at 19:29 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.4 hours before the alert went out and 185 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 2020-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 826 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 2020-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
826 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Tallahassee, FL wrote its last area forecast discussion before this special weather statement went out at Jul 21, 12:11 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, Jul 21, 12:11 PM CDT, 2 hours 14 minutes before
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In the hours before

Local storm report, Jul 21, 1:27 PM CDT, 58 minutes before
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Special weather statement, Jul 21, 1:32 PM CDT, 53 minutes before
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Special weather statement, Jul 21, 1:36 PM CDT, 49 minutes before
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Special weather statement, Jul 21, 1:57 PM CDT, 28 minutes before
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Special weather statement, Jul 21, 2:00 PM CDT, 25 minutes before
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Special weather statement, Jul 21, 2:25 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:21 AM CDTSpecial Marine WarningTAE84 min
Jul 21, 9:43 AM CDTSpecial Marine WarningTAE25 min
Jul 21, 10:20 AM CDTSpecial Weather StatementTAEWakulla25 min
Jul 21, 10:52 AM CDTSpecial Weather StatementTAEGadsden38 min
Jul 21, 11:14 AM CDTSpecial Weather StatementTAECalhoun, Gulf, Liberty46 min
Jul 21, 11:27 AM CDTSpecial Marine WarningTAE3 hr
Jul 21, 11:57 AM CDTSpecial Weather StatementTAEBay, Calhoun63 min
Jul 21, 12:55 PM CDTSpecial Weather StatementTAEWalton50 min
Jul 21, 12:56 PM CDTSpecial Marine WarningTAE108 min
Jul 21, 12:59 PM CDTSpecial Weather StatementTAELeon31 min
Jul 21, 1:19 PM CDTSpecial Weather StatementTAEWashington26 min
Jul 21, 1:36 PM CDTSpecial Weather StatementTAEWalton54 min
Jul 21, 1:57 PM CDTSpecial Weather StatementTAEWashington33 min
Jul 21, 2:27 PM CDTSpecial Weather StatementTAEWashington33 min
Jul 21, 3:14 PM CDTSpecial Marine WarningTAE3 hr
Jul 21, 3:41 PM CDTSpecial Weather StatementTAEDixie64 min
Jul 21, 3:50 PM CDTSevere Thunderstorm WarningTAEDixie55 min
Jul 21, 4:18 PM CDTSevere Thunderstorm WarningTAELafayette, Taylor87 min
Jul 21, 4:48 PM CDTSpecial Marine WarningTAE3 hr
Jul 21, 5:00 PM CDTSpecial Weather StatementTAEMadison45 min
Jul 21, 5:06 PM CDTSevere Thunderstorm WarningTAEFranklin, Jefferson, Taylor, Wakulla84 min
Jul 21, 5:48 PM CDTSevere Thunderstorm WarningTAEFranklin, Jefferson, Leon, Taylor, Wakulla72 min
Jul 21, 6:41 PM CDTSpecial Weather StatementTAEGadsden, Liberty49 min
Jul 21, 12:32 PM CDTSpecial Weather StatementTAESeminole28 min
Jul 21, 12:33 PM CDTSpecial Weather StatementTAEBaker27 min
Jul 21, 1:25 PM CDTSpecial Weather StatementTAEMiller35 min
Jul 21, 1:32 PM CDTSpecial Weather StatementTAELee28 min
Jul 21, 2:00 PM CDTSpecial Weather StatementTAEMiller30 min
Jul 21, 6:50 PM CDTSpecial Weather StatementTAEGrady40 min
Jul 21, 3:32 PM CDTSpecial Weather StatementTAEDale28 min
Jul 21, 3:48 PM CDTSpecial Weather StatementTAEHenry27 min

Nearby

Special Weather Statements in Florida, 2020Every special weather statement in 2020

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.