Alert archive / Florida / Special Weather Statements in 2021
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Oct 8, 2021, 12:42 PM EDT for Duval County, Florida. It was in force for 33 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
- Oct 8, 2021, 12:42 PM EDT (16:42 UTC)
- Expired
- Oct 8, 2021, 1:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Jacksonville, FL
- Hail
- 0.25 in
- Wind
- 50
County Duval County, FL
The radar
The Jacksonville radar (KJAX), 36 km from the middle of the area, began a volume at 16:45 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, 4.7 hours before the alert went out and 37 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
- 2220 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Oct 8, 9:48 AM EDT, 2 hours 54 minutes earlier.
Area forecast discussion, Oct 8, 9:48 AM EDT, 2 hours 54 minutes before
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Local storm report, Oct 8, 12:05 PM EDT, 37 minutes before
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</html>Special weather statement, Oct 8, 12:05 PM EDT, 37 minutes before
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</html>Special weather statement, Oct 8, 12:37 PM EDT, 5 minutes before
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</html>Special weather statement, Oct 8, 12:40 PM EDT, 2 minutes before
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</html>Special weather statement, Oct 8, 12:42 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
1242 PM EDT Fri Oct 8 2021
FLZ033-124-125-132-133-325-081715-
Eastern Clay FL-Coastal St. Johns FL-South Central Duval FL-
Coastal Nassau FL-Coastal Duval FL-Inland St. Johns FL-
1242 PM EDT Fri Oct 8 2021
...Strong thunderstorms will impact portions of northwestern St.
Johns and southeastern Duval Counties through 115 PM EDT...
At 1242 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Little Talbot Island to near San Pablo to
near Green Cove Springs. Movement was northeast at 25 mph.
HAZARD...Wind gusts up to 50 mph, pea size hail, and minor flooding
due to heavy rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible. Minor flooding due to heavy rainfall is possible.
Locations impacted include...
Unf, Fruit Cove, Ponte Vedra Beach, Neptune Beach, Sawgrass,
Baymeadows, Nocatee, Durbin, Craig Field and San Pablo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 2997 8164 3030 8161 3044 8155 3058 8140
3025 8135 3003 8127
TIME...MOT...LOC 1642Z 242DEG 21KT 3045 8149 3027 8145 2999 8161
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
ENYEDIThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 10:47 AM EDT | Special Marine Warning | JAX | 72 min | |
| Oct 8, 11:04 AM EDT | Special Weather Statement | JAX | Suwannee | 26 min |
| Oct 8, 11:29 AM EDT | Special Weather Statement | JAX | Suwannee | 46 min |
| Oct 8, 11:35 AM EDT | Special Marine Warning | JAX | 73 min | |
| Oct 8, 11:45 AM EDT | Special Weather Statement | JAX | Nassau | 30 min |
| Oct 8, 12:05 PM EDT | Special Weather Statement | JAX | Duval | 40 min |
| Oct 8, 12:11 PM EDT | Special Marine Warning | JAX | 94 min | |
| Oct 8, 12:14 PM EDT | Special Weather Statement | JAX | Nassau | 31 min |
| Oct 8, 12:37 PM EDT | Special Weather Statement | JAX | Baker | 23 min |
| Oct 8, 12:40 PM EDT | Special Weather Statement | JAX | Nassau | 20 min |
| Oct 8, 1:03 PM EDT | Special Marine Warning | JAX | 57 min | |
| Oct 8, 1:20 PM EDT | Special Weather Statement | JAX | Saint Johns | 40 min |
| Oct 8, 1:23 PM EDT | Special Marine Warning | JAX | 67 min | |
| Oct 8, 1:46 PM EDT | Special Marine Warning | JAX | 89 min | |
| Oct 8, 2:02 PM EDT | Special Marine Warning | JAX | 58 min | |
| Oct 8, 2:09 PM EDT | Special Marine Warning | JAX | 96 min | |
| Oct 8, 2:23 PM EDT | Special Weather Statement | JAX | Putnam | 52 min |
| Oct 8, 2:29 PM EDT | Special Weather Statement | JAX | Marion | 46 min |
| Oct 8, 2:47 PM EDT | Severe Thunderstorm Warning | JAX | Flagler, Putnam, Saint Johns | 28 min |
| Oct 8, 3:17 PM EDT | Special Marine Warning | JAX | 88 min | |
| Oct 8, 3:18 PM EDT | Special Weather Statement | JAX | Marion | 27 min |
| Oct 8, 3:28 PM EDT | Special Weather Statement | JAX | Flagler | 32 min |
| Oct 8, 3:46 PM EDT | Special Weather Statement | JAX | Lake | 29 min |
| Oct 8, 4:44 PM EDT | Special Weather Statement | JAX | Marion | 31 min |
| Oct 8, 6:27 AM EDT | Special Weather Statement | JAX | Coffee | 48 min |
| Oct 8, 6:46 AM EDT | Severe Thunderstorm Warning | JAX | Coffee | 29 min |
| Oct 8, 7:15 AM EDT | Severe Thunderstorm Warning | JAX | Coffee, Jeff Davis | 60 min |
| Oct 8, 7:23 AM EDT | Special Weather Statement | JAX | Appling | 52 min |
| Oct 8, 7:37 AM EDT | Special Weather Statement | JAX | Coffee | 23 min |
| Oct 8, 7:53 AM EDT | Severe Thunderstorm Warning | JAX | Appling, Atkinson, Bacon, Coffee, Jeff Davis | 52 min |
| Oct 8, 7:58 AM EDT | Areal Flood Warning | JAX | Coffee, Jeff Davis | 3 hr |
| Oct 8, 8:41 AM EDT | Special Weather Statement | JAX | Bacon | 34 min |
| Oct 8, 8:46 AM EDT | Severe Thunderstorm Warning | JAX | Appling, Wayne | 44 min |
| Oct 8, 8:49 AM EDT | Special Weather Statement | JAX | Atkinson, Bacon, Pierce | 26 min |
| Oct 8, 9:18 AM EDT | Special Weather Statement | JAX | Atkinson, Bacon, Pierce | 57 min |
| Oct 8, 9:19 AM EDT | Special Weather Statement | JAX | Wayne | 56 min |
| Oct 8, 9:41 AM EDT | Special Weather Statement | JAX | Brantley, Pierce, Wayne | 34 min |
| Oct 8, 10:15 AM EDT | Special Weather Statement | JAX | Brantley, Glynn, Wayne | 30 min |
| Oct 8, 10:26 AM EDT | Special Weather Statement | JAX | Clinch, Echols, Ware | 49 min |
| Oct 8, 10:41 AM EDT | Special Weather Statement | JAX | Glynn | 49 min |
| Oct 8, 10:44 AM EDT | Severe Thunderstorm Warning | JAX | Brantley, Camden, Glynn, Wayne | 31 min |
| Oct 8, 10:57 AM EDT | Special Weather Statement | JAX | Charlton | 33 min |
| Oct 8, 11:24 AM EDT | Special Weather Statement | JAX | Camden | 36 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.