Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

February 6, 2021Gilchrist County, Florida

NWS Jacksonville, FL issued this special weather statement at Feb 6, 2021, 8:52 PM EST for Gilchrist County, Florida. It was in force for 38 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
Feb 6, 2021, 8:52 PM EST (01:52 UTC)
Expired
Feb 6, 2021, 9:30 PM EST
In force
38 min
Issued by
NWS Jacksonville, FL

County Gilchrist County, FL

The radar

The Moody AFB radar (KVAX), 125 km from the middle of the area, began a volume at 01:55 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

Tampa Bay, FL (KTBW), launched 00:00Z, 1.9 hours before the alert went out and 234 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 2021-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1198 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2021-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1198 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
286 m²/s²
Significant tornado parameter
1.8
Supercell composite
7.7

Open this sounding in Storm Lab

The text

As transmitted.

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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 Feb 6, 6:49 PM EST, 2 hours 3 minutes earlier.

Area forecast discussion, Feb 6, 6:49 PM EST, 2 hours 3 minutes before
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In the hours before

Special weather statement, Feb 6, 8:17 PM EST, 35 minutes before
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Special weather statement, Feb 6, 8:22 PM EST, 30 minutes before
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Local storm report, Feb 6, 8:29 PM EST, 23 minutes before
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Local storm report, Feb 6, 8:43 PM EST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
843 PM EST SAT FEB 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0835 PM     TSTM WND DMG     3 ESE ANDALUSIA         29.48N 81.42W
02/06/2021                   Flagler            FL   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTED WIRES DOWN NEAR THE
            INTERSECTION OF SR100 AND BETRA RD AND SR 100 AND WATER
            OAK RD IN THE NEIGHBORHOOD OF DAYTONA NORTH.

&&

RBRICKER
Local storm report, Feb 6, 8:51 PM EST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Jacksonville FL
851 PM EST SAT FEB 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND DMG     5 N BUNNELL             29.54N 81.26W
02/06/2021                   Flagler            FL   EMERGENCY MNGR

            EMERGENCY MANAGER RELAYED A REPORT FROM FCSO OF A TREE
            DOWN ON WOODHAVEN DRIVE NEAR US1 IN PALM COAST.

&&

RBRICKER
Special weather statement, Feb 6, 8:52 PM EST, 0 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
852 PM EST Sat Feb 6 2021

FLZ035-136-222-236-070230-
Eastern Alachua FL-Southern Columbia FL-Western Alachua FL-
Gilchrist FL-
852 PM EST Sat Feb 6 2021

...SIGNIFICANT WEATHER ADVISORY FOR GILCHRIST...NORTHWESTERN ALACHUA
AND SOUTHWESTERN COLUMBIA COUNTIES UNTIL 930 PM EST...

* At 852 PM EST, National Weather Service meteorologists were
  tracking a strong thunderstorm 8 miles southwest of Bell, moving
  northeast at 45 mph.

* Small hail, winds in excess of 45 mph, and minor flooding due to
  heavy rainfall is possible with this storm.

* Locations impacted include...
  Trenton, Bell, Alachua, High Springs, Fort White and La Crosse.

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.

&&

A Tornado Watch remains in effect until midnight EST for northern
Florida.

LAT...LON 2970 8296 2970 8294 2972 8296 2972 8294
      2978 8294 2980 8292 2982 8293 2983 8290
      2987 8288 3007 8262 2998 8257 2994 8253
      2992 8241 2989 8240 2988 8235 2982 8230
      2958 8284 2959 8294 2958 8295 2961 8297
TIME...MOT...LOC 0152Z 233DEG 41KT 2966 8294

AK

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 6, 7:12 PM ESTSpecial Weather StatementJAXSaint Johns48 min
Feb 6, 7:31 PM ESTSpecial Weather StatementJAXMarion44 min
Feb 6, 7:48 PM ESTSpecial Weather StatementJAXPutnam42 min
Feb 6, 8:01 PM ESTSpecial Marine WarningJAX59 min
Feb 6, 8:02 PM ESTSpecial Marine WarningJAX28 min
Feb 6, 8:17 PM ESTSpecial Weather StatementJAXClay43 min
Feb 6, 8:22 PM ESTSpecial Weather StatementJAXFlagler, Putnam38 min
Feb 6, 8:23 PM ESTSpecial Marine WarningJAX97 min
Feb 6, 8:39 PM ESTSevere Thunderstorm WarningJAXFlagler23 min
Feb 6, 8:57 PM ESTSpecial Weather StatementJAXSaint Johns33 min
Feb 6, 9:20 PM ESTSpecial Marine WarningJAX41 min
Feb 6, 9:32 PM ESTSpecial Weather StatementJAXColumbia43 min
Feb 6, 9:35 PM ESTSpecial Marine WarningJAX55 min
Feb 6, 10:01 PM ESTSpecial Marine WarningJAX44 min
Feb 6, 11:59 PM ESTSpecial Weather StatementJAXAlachua46 min
Feb 7, 12:10 AM ESTSpecial Weather StatementJAXAlachua50 min
Feb 7, 12:36 AM ESTSpecial Weather StatementJAXSaint Johns39 min
Feb 7, 12:48 AM ESTSpecial Weather StatementJAXMarion42 min
Feb 7, 1:09 AM ESTSevere Thunderstorm WarningJAXMarion20 min
Feb 7, 1:22 AM ESTSpecial Weather StatementJAXGilchrist38 min
Feb 7, 1:24 AM ESTSpecial Weather StatementJAXDuval51 min
Feb 7, 1:26 AM ESTSpecial Marine WarningJAX34 min
Feb 7, 1:36 AM ESTSpecial Weather StatementJAXMarion24 min
Feb 7, 1:45 AM ESTSpecial Marine WarningJAX45 min
Feb 7, 1:48 AM ESTSpecial Weather StatementJAXUnion27 min
Feb 7, 2:01 AM ESTSpecial Weather StatementJAXMarion29 min
Feb 7, 2:06 AM ESTSpecial Weather StatementJAXFlagler9 min
Feb 7, 2:11 AM ESTSpecial Marine WarningJAX34 min
Feb 7, 2:20 AM ESTSpecial Marine WarningJAX40 min
Feb 7, 4:08 AM ESTSpecial Weather StatementJAXAlachua, Bradford, Clay52 min
Feb 7, 4:19 AM ESTSpecial Weather StatementJAXMarion26 min
Feb 7, 4:45 AM ESTSpecial Weather StatementJAXDuval30 min
Feb 7, 4:55 AM ESTSpecial Marine WarningJAX50 min
Feb 7, 5:07 AM ESTSpecial Marine WarningJAX23 min
Feb 7, 6:39 AM ESTSpecial Marine WarningJAX96 min
Feb 7, 1:12 AM ESTSpecial Weather StatementJAXJeff Davis48 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.