Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

October 28, 2021Flagler County, Florida

NWS Jacksonville, FL issued this special weather statement at Oct 28, 2021, 2:29 PM EDT for Flagler County, Florida. It was in force for 31 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 28, 2021, 2:29 PM EDT (18:29 UTC)
Expired: Oct 28, 2021, 3:00 PM EDT
In force: 31 min
Issued by: NWS Jacksonville, FL
Hail: 0.00 in
Wind: 50

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 124 km from the middle of the area, began a volume at 18:30 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.5 hours before the alert went out and 130 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1603 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Oct 28, 1:53 PM EDT, 36 minutes earlier.

Area forecast discussion, Oct 28, 1:53 PM EDT, 36 minutes before

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In the hours before

Special weather statement, Oct 28, 10:02 AM EDT, 4 hours 27 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
1002 AM EDT Thu Oct 28 2021

FLZ023-024-031-125-132-225-232-325-425-281430-
Eastern Clay FL-Baker FL-Western Clay FL-Western Duval FL-
South Central Duval FL-Inland Nassau FL-Trout River FL-Bradford FL-
Coastal Duval FL-
1002 AM EDT Thu Oct 28 2021

...A strong thunderstorm will impact portions of southwestern Nassau,
northeastern Bradford, southeastern Baker, northwestern Clay and
western Duval Counties through 1030 AM EDT...

At 1002 AM EDT, Doppler radar was tracking a strong thunderstorm near
Middleburg, moving northeast at 35 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Jacksonville, Orange Park, Jacksonville International Arpt,
Middleburg, Arlington, Maxville, Cisco Gardens, Ortega, Oakleaf
Plantation and Bellair-Meadowbrook Terrace.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2997 8188 3007 8212 3046 8198 3051 8171
      3032 8157
TIME...MOT...LOC 1402Z 214DEG 29KT 3008 8199

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

HESS

Special weather statement, Oct 28, 10:07 AM EDT, 4 hours 22 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
1007 AM EDT Thu Oct 28 2021

FLZ020-021-030-035-122-222-281515-
Southern Columbia FL-Union FL-Hamilton FL-Suwannee FL-
Northern Columbia FL-Gilchrist FL-
1007 AM EDT Thu Oct 28 2021

...Strong thunderstorms will impact portions of central Gilchrist,
northwestern Union, Columbia, Suwannee and Hamilton Counties through
1115 AM EDT...

At 1007 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Dowling Park to 7 miles northwest of Bell.
Movement was northeast at 20 mph.

HAZARD...Winds in excess of 40 mph and minor flooding due to heavy
         rainfall.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor flooding due to heavy rainfall is
         possible.

Locations impacted include...
Lake City, Live Oak, Jasper, White Springs, Bell, Ichetucknee Spring,
Suwannee River State Park, Suwannee Springs, Columbia and Fort White.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3039 8317 3042 8319 3042 8320 3061 8309
      3056 8252 3008 8246 2959 8291 2958 8295
      2962 8297 2975 8294 2976 8295 2981 8293
      2983 8289 2988 8287 2989 8292 2996 8293
      3008 8307 3012 8323 3026 8325
TIME...MOT...LOC 1407Z 223DEG 17KT 3017 8324 2982 8297

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

HESS

Special weather statement, Oct 28, 11:03 AM EDT, 3 hours 26 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
1103 AM EDT Thu Oct 28 2021

FLZ030-031-035-136-222-236-240-340-281600-
Eastern Alachua FL-Southern Columbia FL-Western Alachua FL-
Central Marion FL-Union FL-Western Marion FL-Bradford FL-
Gilchrist FL-
1103 AM EDT Thu Oct 28 2021

...Strong thunderstorms will impact portions of Gilchrist, Bradford,
Alachua, western Marion, southern Union and south central Columbia
Counties through NOON EDT...

At 1103 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Trenton to 17 miles southwest of Williston
Highlands. Movement was east at 35 mph.

HAZARD...Wind gusts up to 50 mph and minor flooding due to heavy
         rainfall.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor flooding due to heavy rainfall is
         possible.

Locations impacted include...
Gainesville, Ocala, Starke, Rainbow Lakes Estates, Trenton, Lake
Butler, Keystone Heights, Worthington Spring, Citra and Alachua.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 2906 8253 2921 8254 2922 8240 2948 8241
      2948 8255 2954 8256 2953 8265 2956 8266
      2956 8275 2958 8278 2958 8286 2959 8288
      2969 8289 2998 8268 3008 8205 2903 8206
TIME...MOT...LOC 1503Z 253DEG 29KT 2968 8278 2916 8275

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

HESS

Special weather statement, Oct 28, 11:57 AM EDT, 2 hours 32 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
1157 AM EDT Thu Oct 28 2021

FLZ031-033-038-132-133-136-137-140-232-236-237-240-340-281700-
Central Marion FL-Coastal St. Johns FL-Western Clay FL-
Eastern Putnam FL-Bradford FL-Eastern Marion FL-Eastern Clay FL-
Eastern Alachua FL-Western Alachua FL-Western Marion FL-
Inland Flagler FL-Western Putnam FL-Inland St. Johns FL-
1157 AM EDT Thu Oct 28 2021

...Strong thunderstorms will impact portions of western Flagler,
southeastern Bradford, southeastern Alachua, central St. Johns,
Marion, Putnam and southern Clay Counties through 100 PM EDT...

At 1157 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Lake Geneva to near Rainbow Lakes Estates.
Movement was east at 35 mph.

HAZARD...Wind gusts of 45 to 55 mph and minor flooding due to heavy
         rainfall.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor flooding due to heavy rainfall is
         possible.

Locations impacted include...
Ocala, Palatka, Green Cove Springs, Rainbow Lakes Estates, Crescent
City, Interlachen, Keystone Heights, Pomona Park, Hastings and East
Palatka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 2905 8247 2904 8253 2921 8254 2922 8240
      2949 8241 2986 8206 3008 8138 2930 8142
      2940 8142 2938 8145 2932 8168 2928 8164
      2905 8164 2905 8166 2896 8166 2896 8231
TIME...MOT...LOC 1557Z 271DEG 32KT 2980 8203 2909 8251

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

HESS

Local storm report, Oct 28, 11:59 AM EDT, 2 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1159 AM EDT THU OCT 28 2021

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

1153 AM     TSTM WND GST     1 NW GAINESVILLE AIRPOR 29.70N 82.28W
10/28/2021  M45 MPH          ALACHUA            FL   ASOS

            ASOS STATION KGNV GAINESVILLE.

&&

KC

Special weather statement, Oct 28, 2:29 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 28, 9:49 AM EDT	Special Weather Statement	JAX	Bradford, Clay	26 min
Oct 28, 10:02 AM EDT	Special Weather Statement	JAX	Duval	28 min
Oct 28, 10:07 AM EDT	Special Weather Statement	JAX	Columbia, Gilchrist, Hamilton, Suwannee	68 min
Oct 28, 11:03 AM EDT	Special Weather Statement	JAX	Alachua, Bradford, Gilchrist	57 min
Oct 28, 11:57 AM EDT	Special Weather Statement	JAX	Marion, Putnam, Saint Johns	63 min
Oct 28, 12:06 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion, Putnam	39 min
Oct 28, 12:10 PM EDT	Severe Thunderstorm Warning	JAX	Marion	50 min
Oct 28, 12:33 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Flagler, Putnam, Saint Johns	57 min
Oct 28, 12:36 PM EDT	Special Marine Warning	JAX		84 min
Oct 28, 12:45 PM EDT	Severe Thunderstorm Warning	JAX	Marion	45 min
Oct 28, 1:25 PM EDT	Severe Thunderstorm Warning	JAX	Flagler, Marion, Putnam, Saint Johns	65 min
Oct 28, 1:55 PM EDT	Special Marine Warning	JAX		95 min
Oct 28, 3:37 PM EDT	Special Marine Warning	JAX		83 min

Nearby

Special Weather Statements in Florida, 2021 Every 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.