Alert archive / Florida / Flash Flood Watches in 2021

Flash Flood Watch 7, NWS Tallahassee, FL

June 21, 202115 counties in Florida; 6 counties in Georgia

NWS Tallahassee, FL issued this flash flood watch at Jun 21, 2021, 1:47 PM CDT for 15 counties in Florida; 6 counties in Georgia. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Jun 21, 2021, 1:47 PM CDT (18:47 UTC)
Expired
Jun 22, 2021, 1:13 PM CDT
In force
23 hr
Issued by
NWS Tallahassee, FL
Flood severity
None
All 21 counties

Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Brooks County, GA, Decatur County, GA, Grady County, GA, Lowndes County, GA, Seminole County, GA, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 25 km from the middle of the area, began a volume at 18:50 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, 6.8 hours before the alert went out and 27 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 2021-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2021-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -75 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
1555 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-75 m²/s²
0-3 km storm-relative helicity
-94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

846 
WGUS62 KTAE 211847
FFATAE

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tallahassee FL
147 PM CDT Mon Jun 21 2021

FLZ007>019-026>029-108-112-114-115-118-127-128-GAZ155>160-221015-
/O.NEW.KTAE.FF.A.0007.210621T1847Z-210624T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
North Walton-Central Walton-Holmes-Washington-Jackson-Inland Bay-
Calhoun-Inland Gulf-Inland Franklin-Gadsden-Leon-Inland Jefferson-
Madison-Liberty-Inland Wakulla-Inland Taylor-Lafayette-South Walton-
Coastal Bay-Coastal Gulf-Coastal Franklin-Coastal Jefferson-Coastal
Wakulla-Coastal Taylor-Seminole-Decatur-Grady-Thomas-Brooks-Lowndes-
Including the cities of Port Washington, Apalachicola, Saint Joe 
Beach, Clarksville, Pasco, Panacea, Little Hope, Quincy, Browntown, 
Leonia, Oak Grove, Elpino, Overstreet, Econfina, Monticello, Adams 
Beach, Wakulla Springs, Hopewell, Pinetta, Steinham Store, Day, 
Wetumpka, West Bainbridge, Fenholloway, Holmes County Airport, 
Blountstown, Killearn Estates, Quincy Airport, Capitola, Maclay 
State Gardens, Howard Creek, Bunker, Sandestin, Cobb Crossroads, 
Midway, Cedar Island, Valdosta Regional Airport, Cairo, Argyle, 
Barker Store, Magnolia Beach, De Funiak Springs, Durham, Creels, 
Perry, Chaires Crossroads, Pleasant Ridge, Tilton, Ausmac, Drifton, 
Wewahitchka, Dills, Center Ridge, Santa Rosa Beach, Apalachicola 
Airport, Buck Siding, Richter Crossroads, Casa Blanco, Morgan Place, 
Decatur Co A/P, Frink, Callaway, Grady Co A/P, Abe Springs, Port 
Leon, Southport, Sneads, Saint Marks, Medart, Turquoise Beach, 
Brooks Co A/P, Cherry Lake, Orange Hill, Youngstown, Littman, Beacon 
Hill, Nankin, Panama City, Hardin Heights, Sopchoppy, Nixon, 
Madison, Cluster Springs, Carbur, Dekle Beach, Davis Park, Alpine 
Heights, Chaires, Fort Gadsden, Grooverville, Santa Clara, 
Fairchild, Crystal Lake, Beachton, Odena, Vicksburg, Eucheeanna, 
Hays Place, Simsville, Thomasville, Capel, Fish Creek, Bethel, 
Metcalf, Cabbage Grove, Five Points, Festus, Valdosta, 
Chattahoochee, Bucell Junction, Poplar Head, Bradfordville, 
Hilliardville, Chipley Municipal Airport, Marysville, Killearn 
Lakes, Lovett, Hanson, Beverly, Bonifay, Donaldsonville A/P, 
Marianna, Dixie, Bennett, Port St. Joe, Bainbridge, Cooks Hammock, 
Donalsonville, De Funiak Spring Airport, Riverturn, Lynn Haven, New 
Hope, Capps, Moncrief, Jarrott, Bay City, Athena, Mayo, Pine Park, 
Dalkeith, Honeyville, Quitman, Hanover, Lynn, Alma, Howell Place, 
Freeport, Malone, Buckhorn, Glendale, Buckville, High Bluff, Blue 
Springs, Scotts Ferry, Chipley, Tallahassee, Boyd, Dillon, 
Sweetwater, Empress, White City, Graceville, Portland, and Seminole 
State Park
147 PM CDT Mon Jun 21 2021 /247 PM EDT Mon Jun 21 2021/

...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING...

The National Weather Service in Tallahassee has issued a

* Flash Flood Watch for portions of Florida and Georgia, including 
  the following areas, in Florida, Calhoun, Central Walton, Coastal 
  Bay, Coastal Franklin, Coastal Gulf, Coastal Jefferson, Coastal 
  Taylor, Coastal Wakulla, Gadsden, Holmes, Inland Bay, Inland 
  Franklin, Inland Gulf, Inland Jefferson, Inland Taylor, Inland 
  Wakulla, Jackson, Lafayette, Leon, Liberty, Madison, North Walton, 
  South Walton and Washington. In Georgia, Brooks, Decatur, Grady, 
  Lowndes, Seminole and Thomas.

* Through Thursday morning.

* Plentiful tropical moisture and an upper level disturbance will 
  generate multiple rounds of thunderstorms over the next 48 to 72 
  hours. Generally 2 to 4 inches of additional rain is expected 
  across the Florida Panhandle and Big Bend into far Southern 
  Georgia through Wednesday night. However, there is the potential 
  for localized amounts of 5 to 8 inches. Combined with the rainfall 
  on Monday, this may lead to flash flooding and minor river 
  flooding.

* Urban and small streams would likely be impacted, with urban 
  roadways potentially becoming impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

PC
2 follow-up statements
528 
WGUS62 KTAE 220546
FFATAE

Flood Watch
National Weather Service Tallahassee FL
1246 AM CDT Tue Jun 22 2021

FLZ007>019-026>029-108-112-114-115-118-127-128-GAZ155>160-231015-
/O.CON.KTAE.FF.A.0007.000000T0000Z-210624T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
North Walton-Central Walton-Holmes-Washington-Jackson-Inland Bay-
Calhoun-Inland Gulf-Inland Franklin-Gadsden-Leon-Inland Jefferson-
Madison-Liberty-Inland Wakulla-Inland Taylor-Lafayette-South Walton-
Coastal Bay-Coastal Gulf-Coastal Franklin-Coastal Jefferson-Coastal
Wakulla-Coastal Taylor-Seminole-Decatur-Grady-Thomas-Brooks-Lowndes-
Including the cities of Port Washington, Apalachicola, Saint Joe 
Beach, Clarksville, Pasco, Panacea, Little Hope, Quincy, Browntown, 
Leonia, Oak Grove, Elpino, Overstreet, Econfina, Monticello, Adams 
Beach, Wakulla Springs, Hopewell, Pinetta, Steinham Store, Day, 
Wetumpka, West Bainbridge, Fenholloway, Holmes County Airport, 
Blountstown, Killearn Estates, Quincy Airport, Capitola, Maclay 
State Gardens, Howard Creek, Bunker, Sandestin, Cobb Crossroads, 
Midway, Cedar Island, Valdosta Regional Airport, Cairo, Argyle, 
Barker Store, Magnolia Beach, De Funiak Springs, Durham, Creels, 
Perry, Chaires Crossroads, Pleasant Ridge, Tilton, Ausmac, Drifton, 
Wewahitchka, Dills, Center Ridge, Santa Rosa Beach, Apalachicola 
Airport, Buck Siding, Richter Crossroads, Casa Blanco, Morgan Place, 
Decatur Co A/P, Frink, Callaway, Grady Co A/P, Abe Springs, Port 
Leon, Southport, Sneads, Saint Marks, Medart, Turquoise Beach, 
Brooks Co A/P, Cherry Lake, Orange Hill, Youngstown, Littman, Beacon 
Hill, Nankin, Panama City, Hardin Heights, Sopchoppy, Nixon, 
Madison, Cluster Springs, Carbur, Dekle Beach, Davis Park, Alpine 
Heights, Chaires, Fort Gadsden, Grooverville, Santa Clara, 
Fairchild, Crystal Lake, Beachton, Odena, Vicksburg, Eucheeanna, 
Hays Place, Simsville, Thomasville, Capel, Fish Creek, Bethel, 
Metcalf, Cabbage Grove, Five Points, Festus, Valdosta, 
Chattahoochee, Bucell Junction, Poplar Head, Bradfordville, 
Hilliardville, Chipley Municipal Airport, Marysville, Killearn 
Lakes, Lovett, Hanson, Beverly, Bonifay, Donaldsonville A/P, 
Marianna, Dixie, Bennett, Port St. Joe, Bainbridge, Cooks Hammock, 
Donalsonville, De Funiak Spring Airport, Riverturn, Lynn Haven, New 
Hope, Capps, Moncrief, Jarrott, Bay City, Athena, Mayo, Pine Park, 
Dalkeith, Honeyville, Quitman, Hanover, Lynn, Alma, Howell Place, 
Freeport, Malone, Buckhorn, Glendale, Buckville, High Bluff, Blue 
Springs, Scotts Ferry, Chipley, Tallahassee, Boyd, Dillon, 
Sweetwater, Empress, White City, Graceville, Portland, and Seminole 
State Park
1246 AM CDT Tue Jun 22 2021 /146 AM EDT Tue Jun 22 2021/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING...

The Flash Flood Watch continues for

* Portions of Florida and Georgia, including the following areas, in 
  Florida, Calhoun, Central Walton, Coastal Bay, Coastal Franklin, 
  Coastal Gulf, Coastal Jefferson, Coastal Taylor, Coastal Wakulla, 
  Gadsden, Holmes, Inland Bay, Inland Franklin, Inland Gulf, Inland 
  Jefferson, Inland Taylor, Inland Wakulla, Jackson, Lafayette, 
  Leon, Liberty, Madison, North Walton, South Walton and Washington. 
  In Georgia, Brooks, Decatur, Grady, Lowndes, Seminole and Thomas.

* Through Thursday morning.

* Plentiful tropical moisture and an upper level disturbance will 
  generate multiple rounds of thunderstorms through Wednesday. 
  Generally 2 to 4 inches of additional rain is expected across the 
  Florida Panhandle and Big Bend into far Southern Georgia through 
  Wednesday night. However, there is the potential for localized 
  additional amounts of 5 to 7 inches. Combined with the rainfall 
  that fell on Monday, this may lead to flash flooding and minor 
  river flooding.

* Urban and small streams would likely be impacted, with urban 
  roadways potentially becoming impassable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
925 
WGUS62 KTAE 221813
FFATAE

Flood Watch
National Weather Service Tallahassee FL
113 PM CDT Tue Jun 22 2021

FLZ007>019-026>029-108-112-114-115-118-127-128-GAZ155>160-221915-
/O.CAN.KTAE.FF.A.0007.000000T0000Z-210624T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
North Walton-Central Walton-Holmes-Washington-Jackson-Inland Bay-
Calhoun-Inland Gulf-Inland Franklin-Gadsden-Leon-Inland Jefferson-
Madison-Liberty-Inland Wakulla-Inland Taylor-Lafayette-South Walton-
Coastal Bay-Coastal Gulf-Coastal Franklin-Coastal Jefferson-Coastal
Wakulla-Coastal Taylor-Seminole-Decatur-Grady-Thomas-Brooks-Lowndes-
Including the cities of Port Washington, Apalachicola, Saint Joe 
Beach, Clarksville, Pasco, Panacea, Little Hope, Quincy, Browntown, 
Leonia, Oak Grove, Elpino, Overstreet, Econfina, Monticello, Adams 
Beach, Wakulla Springs, Hopewell, Pinetta, Steinham Store, Day, 
Wetumpka, West Bainbridge, Fenholloway, Holmes County Airport, 
Blountstown, Killearn Estates, Quincy Airport, Capitola, Maclay 
State Gardens, Howard Creek, Bunker, Sandestin, Cobb Crossroads, 
Midway, Cedar Island, Valdosta Regional Airport, Cairo, Argyle, 
Barker Store, Magnolia Beach, De Funiak Springs, Durham, Creels, 
Perry, Chaires Crossroads, Pleasant Ridge, Tilton, Ausmac, Drifton, 
Wewahitchka, Dills, Center Ridge, Santa Rosa Beach, Apalachicola 
Airport, Buck Siding, Richter Crossroads, Casa Blanco, Morgan Place, 
Decatur Co A/P, Frink, Callaway, Grady Co A/P, Abe Springs, Port 
Leon, Southport, Sneads, Saint Marks, Medart, Turquoise Beach, 
Brooks Co A/P, Cherry Lake, Orange Hill, Youngstown, Littman, Beacon 
Hill, Nankin, Panama City, Hardin Heights, Sopchoppy, Nixon, 
Madison, Cluster Springs, Carbur, Dekle Beach, Davis Park, Alpine 
Heights, Chaires, Fort Gadsden, Grooverville, Santa Clara, 
Fairchild, Crystal Lake, Beachton, Odena, Vicksburg, Eucheeanna, 
Hays Place, Simsville, Thomasville, Capel, Fish Creek, Bethel, 
Metcalf, Cabbage Grove, Five Points, Festus, Valdosta, 
Chattahoochee, Bucell Junction, Poplar Head, Bradfordville, 
Hilliardville, Chipley Municipal Airport, Marysville, Killearn 
Lakes, Lovett, Hanson, Beverly, Bonifay, Donaldsonville A/P, 
Marianna, Dixie, Bennett, Port St. Joe, Bainbridge, Cooks Hammock, 
Donalsonville, De Funiak Spring Airport, Riverturn, Lynn Haven, New 
Hope, Capps, Moncrief, Jarrott, Bay City, Athena, Mayo, Pine Park, 
Dalkeith, Honeyville, Quitman, Hanover, Lynn, Alma, Howell Place, 
Freeport, Malone, Buckhorn, Glendale, Buckville, High Bluff, Blue 
Springs, Scotts Ferry, Chipley, Tallahassee, Boyd, Dillon, 
Sweetwater, Empress, White City, Graceville, Portland, and Seminole 
State Park
113 PM CDT Tue Jun 22 2021 /213 PM EDT Tue Jun 22 2021/

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of Florida and Georgia, including 
the following areas, in Florida, Calhoun, Central Walton, Coastal 
Bay, Coastal Franklin, Coastal Gulf, Coastal Jefferson, Coastal 
Taylor, Coastal Wakulla, Gadsden, Holmes, Inland Bay, Inland 
Franklin, Inland Gulf, Inland Jefferson, Inland Taylor, Inland 
Wakulla, Jackson, Lafayette, Leon, Liberty, Madison, North Walton, 
South Walton and Washington. In Georgia, Brooks, Decatur, Grady, 
Lowndes, Seminole and Thomas has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. Please continue to heed remaining road closures.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 8:51 AM CDTSpecial Marine WarningTAE114 min
Jun 21, 9:21 AM CDTSpecial Weather StatementTAECalhoun, Liberty39 min
Jun 21, 9:32 AM CDTSpecial Weather StatementTAEJefferson43 min
Jun 21, 9:42 AM CDTSpecial Weather StatementTAEBay48 min
Jun 21, 10:00 AM CDTSpecial Weather StatementTAEWakulla45 min
Jun 21, 10:30 AM CDTSpecial Marine WarningTAE2 hr
Jun 21, 10:36 AM CDTSpecial Weather StatementTAELiberty39 min
Jun 21, 10:52 AM CDTSpecial Marine WarningTAE113 min
Jun 21, 11:06 AM CDTSpecial Weather StatementTAEJefferson39 min
Jun 21, 11:30 AM CDTSpecial Weather StatementTAEMadison, Taylor30 min
Jun 21, 11:47 AM CDTSpecial Weather StatementTAEWalton43 min
Jun 21, 12:29 PM CDTSpecial Marine WarningTAE2 hr
Jun 21, 12:33 PM CDTSpecial Marine WarningTAE117 min
Jun 21, 12:52 PM CDTSpecial Weather StatementTAEHolmes, Walton38 min
Jun 21, 1:11 PM CDTSpecial Marine WarningTAE2 hr
Jun 21, 1:18 PM CDTSpecial Weather StatementTAEDixie, Lafayette, Taylor42 min
Jun 21, 1:28 PM CDTSpecial Weather StatementTAEHolmes47 min
Jun 21, 1:54 PM CDTSpecial Weather StatementTAEDixie, Lafayette51 min
Jun 21, 2:05 PM CDTSpecial Weather StatementTAEHolmes40 min
Jun 21, 2:41 PM CDTSpecial Marine WarningTAE3 hr
Jun 21, 3:28 PM CDTSpecial Marine WarningTAE3 hr
Jun 21, 6:23 PM CDTSmall Craft AdvisoryTAE7 hr
Jun 21, 6:30 PM CDTSpecial Marine WarningTAE3 hr
Jun 21, 6:45 PM CDTWind AdvisoryTAEBay, Gulf, Walton6 hr

Nearby

Flash Flood Watches in Florida, 2021Flash Flood Watches in Georgia, 2021Every flash flood watch in 2021

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.