Alert archive / Florida / Flash Flood Warnings in 2016

Flash Flood Warning 20, NWS Tallahassee, FL

September 2, 2016Gadsden County, Leon County, Florida

NWS Tallahassee, FL issued this flash flood warning at Sep 2, 2016, 1:18 AM EDT for Gadsden County, Leon County, Florida. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 2, 2016, 1:18 AM EDT (05:18 UTC)
Expired
Sep 2, 2016, 4:15 AM EDT
In force
3 hr
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Flood severity
None

Counties Gadsden County, FL, Leon County, FL

The radar

The Tallahassee radar (KTLH), 9 km from the middle of the area, began a volume at 05:20 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 00:00Z, 5.3 hours before the alert went out and 12 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 00:00Z on 2016-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2016-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

016 
WGUS52 KTAE 020518
FFWTAE
FLC039-073-020815-
/O.NEW.KTAE.FF.W.0020.160902T0518Z-160902T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
118 AM EDT FRI SEP 2 2016

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN GADSDEN COUNTY IN FLORIDA...
  SOUTH CENTRAL LEON COUNTY IN FLORIDA...

* UNTIL 415 AM EDT

* AT 116 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. 2 TO 3 INCHES OF RAIN HAVE FALLEN. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MIDWAY...TALLAHASSEE...FLORIDA A AND M...DOAK CAMPBELL STADIUM...
  FLORIDA STATE UNIVERSITY...TALLAHASSEE COMM COLLEGE...
  INNOVATION PARK...FOREST MEADOWS PARK...STATE CAPITAL COMPLEX...
  EIGHT MILE POND...BELAIR...TALLAHASSEE MALL...LAKE JACKSON...
  MACON COMMUNITY PARK...LEON COUNTY CIVIC CENTER...
  MISSION SAN LUIS...WINTHROP PARK...LAKE BRADFORD...
  ANDREW AND MACLAY STATE GARDENS.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3030 8457 3052 8450 3056 8439 3054 8419
      3030 8430

$$

ADL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 8:01 PM EDTTornado WarningTAETaylor15 min
Sep 1, 8:19 PM EDTSpecial Marine WarningTAE26 min
Sep 1, 8:34 PM EDTTornado WarningTAETaylor26 min
Sep 1, 8:51 PM EDTTornado WarningTAELafayette, Taylor24 min
Sep 1, 8:58 PM EDTTornado WarningTAEDixie32 min
Sep 1, 9:07 PM EDTTornado WarningTAELafayette23 min
Sep 1, 9:19 PM EDTTornado WarningTAEDixie, Lafayette41 min
Sep 1, 9:58 PM EDTTornado WarningTAELafayette20 min
Sep 1, 10:16 PM EDTSpecial Marine WarningTAE44 min
Sep 1, 10:35 PM EDTTornado WarningTAEDixie, Lafayette, Taylor25 min
Sep 1, 10:45 PM EDTTornado WarningTAELafayette, Taylor30 min
Sep 1, 10:48 PM EDTTornado WarningTAEJefferson, Leon, Taylor, Wakulla27 min
Sep 1, 11:12 PM EDTTornado WarningTAEDixie, Lafayette33 min
Sep 1, 11:19 PM EDTTornado WarningTAEWakulla26 min
Sep 1, 11:39 PM EDTTornado WarningTAEDixie, Lafayette, Taylor25 min
Sep 2, 5:18 AM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton19 hr
Sep 2, 6:10 AM EDTSmall Craft AdvisoryTAE8 hr
Sep 2, 9:28 AM EDTRiver Flood WarningTAEDixie, Taylor10 days
Sep 2, 5:10 PM EDTSpecial Weather StatementTAEWalton35 min
Sep 2, 5:39 PM EDTSpecial Weather StatementTAECalhoun, Liberty, Washington51 min
Sep 2, 7:04 PM EDTSpecial Weather StatementTAEGadsden, Leon56 min

Nearby

Flash Flood Warnings in Florida, 2016Every flash flood warning in 2016

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.