Alert archive / Florida / Areal Flood Warnings in 2021
Areal Flood Warning 19, NWS Jacksonville, FL
NWS Jacksonville, FL issued this areal flood warning at Jun 24, 2021, 1:57 PM EDT for Columbia County, Hamilton County, Florida; Echols County, Georgia. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 24, 2021, 1:57 PM EDT (17:57 UTC)
- Expired
- Jun 24, 2021, 3:58 PM EDT
- In force
- 2 hr
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Columbia County, FL, Hamilton County, FL, Echols County, GA
The radar
The Moody AFB radar (KVAX), 49 km from the middle of the area, began a volume at 18:01 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
Jacksonville, FL (KJAX), launched 12:00Z, 6.0 hours before the alert went out and 107 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
- 1889 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this areal flood warning went out at Jun 24, 10:30 AM EDT, 3 hours 27 minutes earlier.
Area forecast discussion, Jun 24, 10:30 AM EDT, 3 hours 27 minutes before
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Special weather statement, Jun 24, 11:41 AM EDT, 2 hours 16 minutes before
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</html>Special weather statement, Jun 24, 12:55 PM EDT, 1 hour 2 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
1255 PM EDT Thu Jun 24 2021
FLZ020-241745-
Hamilton FL-
1255 PM EDT Thu Jun 24 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HAMILTON COUNTY
UNTIL 145 PM EDT...
* At 1255 PM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm near Jasper, moving west at 5 mph.
* Wind gusts up to 50 mph, excessive cloud-to-ground lightning, and
minor flooding due to heavy rainfall is possible with this storm.
* Locations impacted include...
Jasper, Jennings and Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is occurring with this storm, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.
&&
LAT...LON 3062 8306 3056 8305 3049 8289 3046 8290
3046 8317 3063 8320
TIME...MOT...LOC 1655Z 085DEG 5KT 3055 8300
SHASHYSpecial weather statement, Jun 24, 1:29 PM EDT, 28 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
129 PM EDT Thu Jun 24 2021
FLZ020-122-222-241815-
Southern Columbia FL-Hamilton FL-Northern Columbia FL-
129 PM EDT Thu Jun 24 2021
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL COLUMBIA AND SOUTHEASTERN
HAMILTON COUNTIES UNTIL 215 PM EDT...
* At 129 PM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm near Winfield, or 7 miles north of
Lake City, moving northwest at 10 mph.
* Winds in excess of 45 mph and minor flooding due to heavy rainfall
is possible with this storm.
* Locations impacted include...
White Springs, Winfield, Suwannee Valley, Five Points and Belmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is occurring with this storm, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.
&&
LAT...LON 3033 8249 3021 8253 3019 8261 3037 8281
3051 8276
TIME...MOT...LOC 1729Z 118DEG 9KT 3029 8262
SHASHYSpecial weather statement, Jun 24, 1:47 PM EDT, 10 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
147 PM EDT Thu Jun 24 2021
FLZ020-122-GAZ162-241845-
Hamilton FL-Northern Columbia FL-Echols GA-
147 PM EDT Thu Jun 24 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN COLUMBIA...HAMILTON
AND SOUTHERN ECHOLS COUNTIES UNTIL 245 PM EDT...
* At 147 PM EDT, National Weather Service meteorologists were
tracking showers and thunderstorms along a line extending from
near Jennings to 6 miles northeast of Belmont. Movement was south
at 5 to 10 mph.
* Winds in excess of 40 mph, excessive cloud-to-ground lightning,
and minor flooding due to heavy rainfall is possible with these
storms.
* Locations impacted include...
Jasper, Jennings, Statenville and Belmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is occurring with these storms, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.
&&
LAT...LON 3063 8314 3079 8313 3062 8258 3059 8258
3058 8246 3037 8246 3053 8324 3055 8326
3059 8326 3062 8327 3063 8329
TIME...MOT...LOC 1747Z 021DEG 9KT 3067 8313 3056 8264
SHASHYThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 12:23 PM EDT | Special Weather Statement | JAX | Hamilton | 82 min |
| Jun 24, 12:55 PM EDT | Special Weather Statement | JAX | Hamilton | 50 min |
| Jun 24, 1:29 PM EDT | Special Weather Statement | JAX | Columbia | 46 min |
| Jun 24, 1:47 PM EDT | Special Weather Statement | JAX | Hamilton | 58 min |
| Jun 24, 2:17 PM EDT | Special Weather Statement | JAX | Putnam | 28 min |
| Jun 24, 2:19 PM EDT | Special Weather Statement | JAX | Union | 41 min |
| Jun 24, 2:21 PM EDT | Special Weather Statement | JAX | Baker | 39 min |
| Jun 24, 3:03 PM EDT | Special Weather Statement | JAX | Alachua, Columbia, Union | 42 min |
| Jun 24, 3:06 PM EDT | Areal Flood Warning | JAX | Baker, Columbia, Duval, Nassau | 114 min |
| Jun 24, 3:11 PM EDT | Special Weather Statement | JAX | Clay | 49 min |
| Jun 24, 3:44 PM EDT | Special Weather Statement | JAX | Alachua, Bradford, Gilchrist | 46 min |
| Jun 24, 4:01 PM EDT | Special Weather Statement | JAX | Clay | 44 min |
| Jun 24, 4:13 PM EDT | Special Weather Statement | JAX | Flagler | 62 min |
| Jun 24, 4:23 PM EDT | Areal Flood Warning | JAX | Alachua, Bradford | 2 hr |
| Jun 24, 4:29 PM EDT | Special Weather Statement | JAX | Marion | 31 min |
| Jun 24, 4:32 PM EDT | Special Weather Statement | JAX | Alachua | 43 min |
| Jun 24, 4:35 PM EDT | Special Weather Statement | JAX | Flagler | 40 min |
| Jun 24, 4:40 PM EDT | Special Weather Statement | JAX | Clay | 65 min |
| Jun 24, 4:59 PM EDT | Special Weather Statement | JAX | Putnam | 46 min |
| Jun 24, 5:15 PM EDT | Special Weather Statement | JAX | Flagler, Putnam | 45 min |
| Jun 24, 5:41 PM EDT | Special Weather Statement | JAX | Duval | 49 min |
| Jun 24, 5:56 PM EDT | Special Weather Statement | JAX | Putnam | 64 min |
| Jun 24, 6:54 PM EDT | Small Craft Advisory | JAX | 8 hr | |
| Jun 23, 10:02 PM EDT | Special Weather Statement | JAX | Atkinson, Bacon, Coffee | 43 min |
| Jun 23, 10:52 PM EDT | Special Weather Statement | JAX | Atkinson, Coffee | 38 min |
| Jun 23, 11:03 PM EDT | Special Weather Statement | JAX | Jeff Davis | 42 min |
| Jun 24, 12:19 AM EDT | Special Weather Statement | JAX | Jeff Davis | 41 min |
| Jun 24, 1:58 AM EDT | Special Weather Statement | JAX | Coffee | 47 min |
| Jun 24, 10:05 AM EDT | Special Weather Statement | JAX | Appling | 70 min |
| Jun 24, 11:41 AM EDT | Special Weather Statement | JAX | Ware | 94 min |
| Jun 24, 12:42 PM EDT | Special Weather Statement | JAX | Camden | 48 min |
Nearby
Areal Flood Warnings in Florida, 2021Areal Flood Warnings in Georgia, 2021Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.