Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Oct 19, 2011, 2:21 AM EDT for Putnam County, Florida. It was in force for 54 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 19, 2011, 2:21 AM EDT (06:21 UTC)
- Expired
- Oct 19, 2011, 3:15 AM EDT
- In force
- 54 min
- Issued by
- NWS Jacksonville, FL
County Putnam County, FL
The radar
The Jacksonville radar (KJAX), 103 km from the middle of the area, began a volume at 06:24 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, 6.4 hours before the alert went out and 105 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
- 490 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 726 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
365
WWUS82 KJAX 190621
SPSJAX
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
221 AM EDT WED OCT 19 2011
FLZ032-036-037-190715-
ALACHUA-CLAY-PUTNAM-
221 AM EDT WED OCT 19 2011
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHWESTERN
CLAY...SOUTHEASTERN ALACHUA AND NORTHWESTERN PUTNAM COUNTIES FOR
STRONG WINDS AND FUNNEL CLOUDS VALID UNTIL 315 AM EDT...
AT 221 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED OVER LOCHLOOSA...OR 6 MILES NORTH OF CITRA...
MOVING NORTHEAST AT 25 MPH. THESE STRONG THUNDERSTORMS WILL ALSO
AFFECT AREAS AROUND LOCHLOOSA...CROSS CREEK...GROVE PARK...JOHNSON...
MELROSE...MANNVILLE...INTERLACHEN...PUTNAM HALL...LAKE GENEVA AND
HOLLISTER THROUGH 315 AM EDT. GUSTY WINDS OF 40 TO 50 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. DOPPLER RADAR HAS
INDICATED WEAK ROTATION WITHIN THIS STORM. TORNADOES MAY DEVELOP WITH
LITTLE OR NO ADVANCE WARNING. HEAVY RAINFALL WILL PRODUCE PONDING OF
WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 2950 8195 2950 8201 2947 8206 2944 8206
2942 8215 2948 8221 2950 8225 2972 8206
2972 8205 2973 8205 2998 8183 2980 8160
TIME...MOT...LOC 0621Z 222DEG 22KT 2951 8210
$$
HESSThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 2:22 AM EDT | Special Weather Statement | JAX | Marion | 53 min |
| Oct 19, 2:56 AM EDT | Tornado Warning | JAX | Marion | 49 min |
| Oct 19, 3:00 AM EDT | Special Weather Statement | JAX | Marion | 45 min |
| Oct 19, 3:46 AM EDT | Tornado Warning | JAX | Marion | 44 min |
| Oct 19, 3:51 AM EDT | Special Weather Statement | JAX | Putnam | 39 min |
| Oct 19, 3:53 AM EDT | Lake Wind Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 15 hr |
| Oct 19, 4:23 AM EDT | Special Weather Statement | JAX | Flagler | 52 min |
Nearby
Special Weather Statements in Florida, 2011Every special weather statement in 2011
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.