Alert archive / Florida / Special Weather Statements in 2019

Special Weather Statement, NWS Jacksonville, FL

July 19, 2019Flagler County, Florida

NWS Jacksonville, FL issued this special weather statement at Jul 19, 2019, 5:13 PM EDT for Flagler County, Florida. It was in force for 47 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
Jul 19, 2019, 5:13 PM EDT (21:13 UTC)
Expired
Jul 19, 2019, 6:00 PM EDT
In force
47 min
Issued by
NWS Jacksonville, FL

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 128 km from the middle of the area, began a volume at 21:16 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, 9.2 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2019-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2086 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, Jacksonville, FL at 12:00Z on 2019-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 square meters per square second.1939Sfc1 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
2086 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
-22 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 Jul 19, 2:27 PM EDT, 2 hours 46 minutes earlier.

Area forecast discussion, Jul 19, 2:27 PM EDT, 2 hours 46 minutes before
Area Forecast Discussion
National Weather Service Jacksonville FL
227 PM EDT Fri Jul 19 2019

.NEAR TERM /Through Saturday/...
Weak inverted upper trough remains over forecast area between
ridges further east and west. Warm, moist environment, with 2.0"
precip water values, supporting another round of scattered to
numerous showers and t-storms across the forecast area, with
greatest coverage likely interior areas. Conditions favorable for
strong gusty winds and heavy rainfall. Low temperatures Tonight
similar to last night with lower-mid 70s across forecast area.

For Saturday, upper-level inverted trough shifts a bit westward.
Environment favors sea breezes moving well inland and converging
along spine of FL peninsula where greatest coverage of afternoon
showers/t-storms is expected. Maybe slightly less coverage
compared to Today with upper trough further west. Latest
consensus guidance supports current high temperature forecast
in the mid 90s well inland, around 90 coast.

.SHORT TERM /Saturday Night through Sunday Night/...
Pattern changes little this period, with scattered showers/t-storms
expected again Sunday afternoon into evening. High temperatures
will be in the lower-mid 90s.

.LONG TERM /Monday through Thursday/...
Pattern changes across the country this period, with strong upper
ridge over western U.S. and trough over eastern U.S. Still
expecting daily round of afternoon/evening showers/t-storms
across forecast area with sea breezes along with surface trough
across se GA. A little stronger flow aloft and colder mid-level
temperatures could support more intense t-storms at times. With
weak upper trough over forecast area, temperatures should be near
normal for the time of year.

&&

.AVIATION...Convection is currently firing along the Atlantic sea
breeze front near and just east of I-95. Additional storms are
developing along an old outflow boundary from Mayport-Gainesville-
Cedar Key and yet a third boundary from Brunswick-Waycross-Perry.
With all of these boundaries and a slow westward movement expect
storms to be in the VCNTY at North Florida Regional Airport (KSGJ)
and McKinnon Airport (KSSI) through 20 utc and over the KCRG,
KJAX, KVQQ and KGNV fields through 20-22 utc. In general, seeing
bases on the CU/TCU/CB of 4-6 KFT with stratus Fractus at 2.5-4
kft below the bases. Expect the widespread convection over the
Jacksonville Metro/Gainesville areas to diminish after 22 utc as
the air mass stabilizes and is worked over with just a few storms
still about to keep them in the VCNTY there. After 02-03 utc, will
see mainly convective debris over the region through the morning
hours with some light mist/fog around 4 SM between 09-12 utc at
KVQQ and KGNV.

&&

.MARINE...High pressure will be east of the waters through early
next week, maintaining southerly winds at 10-15 knots with 2-4 ft
seas.

Rip Currents: SE GA: low risk through Saturday
              NE FL: moderate risk through Saturday

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  73  94  74  94 /  50  30  10  30
SSI  77  89  78  92 /  20  20  10  30
JAX  75  94  75  94 /  40  40  20  30
SGJ  75  91  75  91 /  30  20  20  20
GNV  73  93  74  93 /  40  50  20  30
OCF  73  93  74  92 /  30  50  30  30

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...None.
&&

Wolf/Enyedi/Peterson

In the hours before

Special weather statement, Jul 19, 4:28 PM EDT, 45 minutes before
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Special weather statement, Jul 19, 4:33 PM EDT, 40 minutes before
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Local storm report, Jul 19, 4:53 PM EDT, 20 minutes before
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Special weather statement, Jul 19, 5:02 PM EDT, 11 minutes before
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Special weather statement, Jul 19, 5:09 PM EDT, 4 minutes before
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Special weather statement, Jul 19, 5:13 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 9:12 PM EDTSpecial Marine WarningJAX93 min
Jul 19, 1:20 PM EDTSpecial Weather StatementJAXClay25 min
Jul 19, 1:33 PM EDTSpecial Weather StatementJAXDuval42 min
Jul 19, 1:38 PM EDTSevere Thunderstorm WarningJAXClay, Duval28 min
Jul 19, 1:41 PM EDTSpecial Weather StatementJAXNassau34 min
Jul 19, 1:55 PM EDTSpecial Weather StatementJAXBaker50 min
Jul 19, 1:58 PM EDTSpecial Weather StatementJAXAlachua47 min
Jul 19, 2:05 PM EDTSpecial Weather StatementJAXHamilton40 min
Jul 19, 2:09 PM EDTSpecial Weather StatementJAXNassau51 min
Jul 19, 2:14 PM EDTSevere Thunderstorm WarningJAXAlachua22 min
Jul 19, 2:16 PM EDTSpecial Weather StatementJAXSaint Johns29 min
Jul 19, 2:36 PM EDTSpecial Weather StatementJAXAlachua24 min
Jul 19, 3:02 PM EDTSevere Thunderstorm WarningJAXNassau15 min
Jul 19, 3:05 PM EDTSpecial Weather StatementJAXColumbia40 min
Jul 19, 3:06 PM EDTSpecial Weather StatementJAXUnion24 min
Jul 19, 3:12 PM EDTSevere Thunderstorm WarningJAXAlachua, Bradford, Union32 min
Jul 19, 3:21 PM EDTSpecial Weather StatementJAXPutnam24 min
Jul 19, 3:24 PM EDTSpecial Weather StatementJAXUnion36 min
Jul 19, 3:28 PM EDTAreal Flood AdvisoryJAXColumbia2 hr
Jul 19, 3:31 PM EDTSpecial Weather StatementJAXMarion29 min
Jul 19, 3:36 PM EDTSpecial Weather StatementJAXBaker24 min
Jul 19, 3:37 PM EDTSpecial Weather StatementJAXSaint Johns53 min
Jul 19, 3:39 PM EDTAreal Flood AdvisoryJAXClay, Putnam2 hr
Jul 19, 3:58 PM EDTSpecial Weather StatementJAXSaint Johns32 min
Jul 19, 4:20 PM EDTAreal Flood AdvisoryJAXSaint Johns115 min
Jul 19, 4:22 PM EDTSpecial Weather StatementJAXMarion38 min
Jul 19, 4:33 PM EDTSpecial Weather StatementJAXFlagler27 min
Jul 19, 4:37 PM EDTAreal Flood AdvisoryJAXMarion113 min
Jul 19, 5:02 PM EDTSpecial Weather StatementJAXFlagler28 min
Jul 19, 5:06 PM EDTAreal Flood AdvisoryJAXPutnam114 min
Jul 19, 5:17 PM EDTAreal Flood AdvisoryJAXMarion118 min
Jul 18, 8:01 PM EDTSpecial Weather StatementJAXCamden44 min
Jul 18, 8:20 PM EDTSpecial Weather StatementJAXBrantley40 min
Jul 18, 8:35 PM EDTSevere Thunderstorm WarningJAXBrantley, Camden, Glynn40 min
Jul 18, 9:20 PM EDTSpecial Weather StatementJAXGlynn40 min
Jul 18, 10:30 PM EDTSpecial Weather StatementJAXWayne45 min
Jul 19, 2:47 PM EDTSpecial Weather StatementJAXCamden43 min
Jul 19, 2:50 PM EDTSpecial Weather StatementJAXWare40 min
Jul 19, 2:58 PM EDTSpecial Weather StatementJAXCharlton32 min
Jul 19, 3:18 PM EDTSpecial Weather StatementJAXEchols42 min
Jul 19, 3:22 PM EDTSpecial Weather StatementJAXCharlton38 min
Jul 19, 3:29 PM EDTSpecial Weather StatementJAXBrantley46 min
Jul 19, 3:48 PM EDTSpecial Weather StatementJAXWare42 min
Jul 19, 3:59 PM EDTSpecial Weather StatementJAXAtkinson46 min
Jul 19, 4:19 PM EDTSpecial Weather StatementJAXPierce41 min
Jul 19, 4:28 PM EDTSpecial Weather StatementJAXGlynn47 min
Jul 19, 4:37 PM EDTSevere Thunderstorm WarningJAXPierce, Wayne38 min
Jul 19, 5:09 PM EDTSpecial Weather StatementJAXLong51 min
Jul 19, 5:22 PM EDTSevere Thunderstorm WarningJAXWayne38 min
Jul 19, 5:30 PM EDTSpecial Weather StatementJAXAppling45 min

Nearby

Special Weather Statements in Florida, 2019Every special weather statement in 2019

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.