Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Aug 8, 2021, 8:01 PM EDT for Clay County, Florida. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2021, 8:01 PM EDT (00:01 UTC)
- Expired
- Aug 8, 2021, 8:30 PM EDT
- In force
- 29 min
- Issued by
- NWS Jacksonville, FL
- Hail
- 0.00 in
- Wind
- 30
County Clay County, FL
The radar
The Jacksonville radar (KJAX), 62 km from the middle of the area, began a volume at 00:01 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 00:00Z, 0.0 hours before the alert went out and 63 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
- 2517 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1039 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
345
WWUS82 KJAX 090001
SPSJAX
Special Weather Statement
National Weather Service Jacksonville FL
801 PM EDT Sun Aug 8 2021
FLZ033-132-232-090030-
Eastern Clay FL-Western Clay FL-Inland St. Johns FL-
801 PM EDT Sun Aug 8 2021
...A strong thunderstorm will impact portions of west central St.
Johns and east central Clay Counties through 830 PM EDT...
At 801 PM EDT, Doppler radar was tracking a strong thunderstorm near
Green Cove Springs, moving southeast at 5 mph.
HAZARD...Minor flooding due to heavy rainfall.
SOURCE...Radar indicated.
IMPACT...Minor flooding due to heavy rainfall is possible.
Locations impacted include...
Green Cove Springs and Picolata.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 2998 8152 2984 8165 2984 8167 2992 8180
3004 8174
TIME...MOT...LOC 0001Z 301DEG 5KT 2993 8173
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
$$
CORLESSThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:51 PM EDT | River Flood Warning | JAX | Gilchrist, Suwannee | 22 days |
| Aug 9, 1:35 PM EDT | Special Weather Statement | JAX | Duval | 25 min |
| Aug 9, 3:26 PM EDT | Special Weather Statement | JAX | Nassau | 49 min |
| Aug 9, 7:15 PM EDT | Special Weather Statement | JAX | Alachua | 45 min |
| Aug 8, 8:12 PM EDT | Special Weather Statement | JAX | Camden | 48 min |
| Aug 8, 8:29 PM EDT | Special Weather Statement | JAX | Charlton | 31 min |
| Aug 9, 1:03 PM EDT | Special Weather Statement | JAX | Glynn | 42 min |
| Aug 9, 3:23 PM EDT | Special Weather Statement | JAX | Brantley, Wayne | 52 min |
| Aug 9, 4:22 PM EDT | Special Weather Statement | JAX | Brantley | 38 min |
Nearby
Special Weather Statements in Florida, 2021Every special weather statement 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.