Alert archive / Florida / Flash Flood Warnings in 2022

Flash Flood Warning 21, NWS Tallahassee, FL

July 11, 2022Jackson County, Florida

NWS Tallahassee, FL issued this flash flood warning at Jul 11, 2022, 3:01 PM CDT for Jackson County, Florida. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 11, 2022, 3:01 PM CDT (20:01 UTC)
Expired
Jul 11, 2022, 6:15 PM CDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

County Jackson County, FL

The radar

The Eglin Afb radar (KEVX), 73 km from the middle of the area, began a volume at 20:04 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.

What was reported inside it

TimeReportWhereRemark
Jul 11, 3:38 PM CDTFLASH FLOOD3 Ese Marianna, FLHIGHWAY 90 AT TURNER ROAD IMPASSIBLE DUE TO FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.0 hours before the alert went out and 294 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, Peachtre/Fal Fld, GA at 12:00Z on 2022-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 195 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, Peachtre/Fal Fld, GA at 12:00Z on 2022-07-11The 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
195 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

436 
WGUS52 KTAE 112001
FFWTAE
FLC063-112315-
/O.NEW.KTAE.FF.W.0021.220711T2001Z-220711T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
301 PM CDT Mon Jul 11 2022

The National Weather Service in Tallahassee has issued a

* Flash Flood Warning for...
  Jackson County in the panhandle of Florida...

* Until 615 PM CDT.

* At 301 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Marianna, Cottondale, Grand Ridge, Greenwood, Chipola Terrace, 
  Marianna Municipal A/P, Blue Spring, Dellwood, Cypress and 
  Cottondale Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3088 8537 3084 8497 3070 8502 3072 8514
      3076 8540

FLASH FLOOD...RADAR INDICATED

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 12:44 AM CDTSpecial Marine WarningTAE91 min
Jul 11, 1:22 AM CDTSpecial Marine WarningTAE53 min
Jul 11, 2:20 AM CDTSpecial Marine WarningTAE115 min
Jul 11, 2:32 AM CDTSpecial Marine WarningTAE58 min
Jul 11, 2:48 AM CDTSpecial Marine WarningTAE87 min
Jul 11, 3:25 AM CDTSpecial Marine WarningTAE2 hr
Jul 11, 3:44 AM CDTAreal Flood AdvisoryTAEGulf3 hr
Jul 11, 4:30 AM CDTSpecial Marine WarningTAE2 hr
Jul 11, 4:35 AM CDTSpecial Marine WarningTAE115 min
Jul 11, 10:34 AM CDTRip Current StatementTAEBay, Franklin, Gulf, Walton14 hr
Jul 11, 12:12 PM CDTSpecial Weather StatementTAEBay33 min
Jul 11, 1:18 PM CDTSpecial Weather StatementTAEWalton27 min
Jul 11, 1:23 PM CDTSpecial Weather StatementTAEHolmes, Washington37 min
Jul 11, 1:53 PM CDTSpecial Weather StatementTAEWashington37 min
Jul 11, 1:56 PM CDTAreal Flood AdvisoryTAEHolmes, Washington2 hr
Jul 11, 1:58 PM CDTSpecial Weather StatementTAEHolmes32 min
Jul 11, 2:21 PM CDTAreal Flood AdvisoryTAEMadison114 min
Jul 11, 2:47 PM CDTSpecial Weather StatementTAEJackson28 min
Jul 11, 3:09 PM CDTSpecial Weather StatementTAEGadsden36 min
Jul 11, 3:59 PM CDTSpecial Weather StatementTAELeon31 min
Jul 11, 4:25 PM CDTFlash Flood WarningTAEGadsden, Leon2 hr

Nearby

Flash Flood Warnings in Florida, 2022Every flash flood warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.