Alert archive / Florida / Flash Flood Warnings in 2021
Flash Flood Warning 1, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood warning at Jan 2, 2021, 8:41 AM EST for 4 counties in Florida. It was in force for 5 hr. 4 reports 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
- Jan 2, 2021, 8:41 AM EST (13:41 UTC)
- Expired
- Jan 2, 2021, 2:04 PM EST
- In force
- 5 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Jefferson County, FL, Leon County, FL, Madison County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 27 km from the middle of the area, began a volume at 13:43 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 2, 8:52 AM EST | FLASH FLOOD | Us-19 North Of Railroad, FL | REPORT OF US-19 NORTH OF RAILROAD BRIDGE UNDERWATER. |
| Jan 2, 12:55 PM EST | HEAVY RAIN 5.45 | 4 Sse Apalachee Regiona, FL | 5.45 INCHES OF RAIN SINCE THURSDAY MORNING, 4.45 INCHES OF WHICH FELL SINCE 7AM THIS MORNING. |
| Jan 2, 1:00 PM EST | HEAVY RAIN 4.19 | 1 Nne Thomas City, FL | CO-OP OBSERVER STATION WACF1 0.9 NE THOMAS CITY OBSERVED 4.19 INCHES OF RAIN IN THE PAST 24 HOURS. |
| Jan 2, 2:02 PM EST | HEAVY RAIN 5.38 | Bethel, FL | 5.38 INCHES OF RAIN SINCE JANUARY 1, WITH 4.89 INCHES OF THE TOTAL HAVING FALLEN ON JANUARY 2. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.7 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.
- Mixed-layer CAPE
- 57 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 587 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
119
WGUS52 KTAE 021341
FFWTAE
FLC065-073-079-129-021645-
/O.NEW.KTAE.FF.W.0001.210102T1341Z-210102T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
841 AM EST Sat Jan 2 2021
The National Weather Service in Tallahassee has issued a
* Flash Flood Warning for...
Jefferson County in Big Bend Florida...
Southeastern Leon County in Big Bend Florida...
Northwestern Madison County in Big Bend Florida...
Central Wakulla County in Big Bend Florida...
* Until 1145 AM EST.
* At 841 AM EST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen in the last 3 Hours. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Monticello, Woodville, Tallahassee, St. Marks, Crawfordville,
Wakulla, Sopchoppy, Cody, Natural Bridge, Chaires Crossroads,
Fanlew, Apalachee Regional Park, Chaires, Capitola, Wacissa
Springs, Wacissa, Southwood, Ralford Greenway, Thomas City and
Lutterloh.
Additional rainfall amounts of 2 to 3 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.
&&
LAT...LON 3000 8447 3015 8457 3040 8425 3065 8385
3063 8353 2997 8444 2997 8445 2998 8444
2998 8445 3000 8446
FLASH FLOOD...RADAR INDICATED
$$
MM2 follow-up statements
887
WGUS52 KTAE 021626
FFWTAE
FLC065-073-079-129-022245-
/O.EXT.KTAE.FF.W.0001.000000T0000Z-210102T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tallahassee FL
1126 AM EST Sat Jan 2 2021
The National Weather Service in Tallahassee has extended the
* Flash Flood Warning for...
Jefferson County in Big Bend Florida...
Southeastern Leon County in Big Bend Florida...
Northwestern Madison County in Big Bend Florida...
Central Wakulla County in Big Bend Florida...
* Until 545 PM EST Saturday.
* At 1126 AM EST, Doppler radar indicated heavy rain across the
warned area. Flash flooding is ongoing or expected to begin
shortly. Flash flooding was reported earlier along Highway 19 near
Monticello. Additional heavy rain is likely this afternoon with
additional flash flooding expected.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Monticello, Woodville, Tallahassee, St. Marks, Crawfordville,
Wakulla, Sopchoppy, Cody, Natural Bridge, Chaires Crossroads,
Fanlew, Apalachee Regional Park, Chaires, Capitola, Wacissa
Springs, Wacissa, Southwood, Ralford Greenway, Thomas City and
Lutterloh.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3000 8447 3015 8457 3040 8425 3065 8385
3063 8353 2997 8444 2997 8445 2998 8444
2998 8445 3000 8446
FLASH FLOOD...RADAR INDICATED
$$
42-DVD110
WGUS72 KTAE 021904
FFSTAE
Flash Flood Statement
National Weather Service Tallahassee FL
204 PM EST Sat Jan 2 2021
FLC065-073-079-129-021914-
/O.CAN.KTAE.FF.W.0001.000000T0000Z-210102T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson FL-Leon FL-Madison FL-Wakulla FL-
204 PM EST Sat Jan 2 2021
...FLASH FLOOD WARNING IS CANCELLED FOR JEFFERSON, SOUTHEASTERN
LEON, NORTHWESTERN MADISON AND CENTRAL WAKULLA COUNTIES...
The heavy rain has ended has temporarily ended, although additional
heavy rain is possible later this afternoon into the evening. Please
continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 100 AM EST Sunday for
portions of Florida and Georgia.
LAT...LON 3000 8447 3015 8457 3040 8425 3065 8385
3063 8353 2997 8444 2997 8445 2998 8444
2998 8445 3000 8446
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 1, 8:44 PM EST | Special Marine Warning | TAE | 61 min | |
| Jan 2, 7:07 AM EST | Special Marine Warning | TAE | 3 hr | |
| Jan 2, 8:00 AM EST | Areal Flood Advisory | TAE | Franklin, Jefferson, Leon, Liberty, Madison, Wakulla | 3 hr |
| Jan 2, 8:33 AM EST | Marine Dense Fog Advisory | TAE | 7 hr | |
| Jan 2, 10:13 AM EST | River Flood Warning | TAE | Leon, Wakulla | 4 days |
| Jan 2, 10:32 AM EST | Areal Flood Advisory | TAE | Franklin | 3 hr |
| Jan 2, 12:45 PM EST | Areal Flood Advisory | TAE | Bay | 3 hr |
| Jan 2, 2:11 PM EST | Flash Flood Warning | TAE | Bay | 77 min |
| Jan 2, 3:00 PM EST | Areal Flood Advisory | TAE | Franklin | 5 hr |
| Jan 2, 3:10 PM EST | Areal Flood Advisory | TAE | Wakulla | 5 hr |
| Jan 2, 4:20 PM EST | Areal Flood Advisory | TAE | Jefferson, Leon | 4 hr |
Nearby
Flash Flood Warnings in Florida, 2021Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.