Alert archive / Florida / High Surf Advisories in 2019

High Surf Advisory 1, NWS Tallahassee, FL

January 4, 2019Bay County, Gulf County, Florida

NWS Tallahassee, FL issued this high surf advisory at Jan 4, 2019, 2:55 AM CST for Bay County, Gulf County, Florida. It took effect at Jan 4, 2019, 9:00 AM CST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2019, 2:55 AM CST (08:55 UTC)
In effect from
Jan 4, 2019, 9:00 AM CST
Expired
Jan 4, 2019, 11:00 PM CST
In force
14 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Gulf County, FL

The radar

The Eglin Afb radar (KEVX), 71 km from the middle of the area, began a volume at 08:57 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 8.9 hours before the alert went out and 116 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, Tallahassee Rgnl, FL at 00:00Z on 2019-01-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 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, Tallahassee Rgnl, FL at 00:00Z on 2019-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
72 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
785 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this high surf advisory went out at Jan 4, 1:34 AM CST, 1 hour 21 minutes earlier.

Area forecast discussion, Jan 4, 1:34 AM CST, 1 hour 21 minutes before
Area Forecast Discussion
National Weather Service Tallahassee FL
234 AM EST Fri Jan 4 2019

.NEAR TERM [Through Today]...

A strong low pressure system will move through the Southeast today,
forcing a cold front through the Tri-State region. Severe weather is
not anticipated, though the strong wind field with this system will
likely result in gusty winds 20-30 mph in and behind the line. Rain
amounts are not forecast to be too impressive due to the progressive
nature of the front. Expect average amounts on the order of 0.5-
1.0". While high clouds won't completely clear out today, the low
overcast will clear with the passage of the cold front.

.SHORT TERM [Tonight Through Sunday]...

In the upper levels a cut-off low centered over Tennessee will move
out of the Southeast by tomorrow afternoon and a ridge will build
into the region. At the surface a low will be near West Virginia
tonight with wrap around moisture extending to North Florida. By
tomorrow afternoon high pressure will move into the region. POPs
will be near zero this weekend. Clouds will be moving out of the
region by tomorrow afternoon. Highs will be in the 60s. Lows will be
in the lower 40s.

.LONG TERM [Sunday Night Through Friday]...

In the upper levels a ridge may be over the Gulf of Mexico. A trough
will move through the Southeast on Monday night, then a longwave
trough will deepen along the Atlantic Coast midweek. At the surface
high pressure will be over the region until a weak cold front
approaches Monday night. High pressure returns by Tuesday night.
POPs will be very low until Friday night when a more substantial
system is possible. Highs will be in the 60s and lower 70s. Lows
will be in the 40s.

&&

.AVIATION...
[Through 06Z Saturday]

LIFR conditions are forecast to impact TLH, VLD, and possibly ABY
overnight. Further west, an MVFR/IFR mixture exists in and out of
light rain. As the primary line of heavy rain moves through the
region today, expect gusty winds and IFR conditions, with VFR and
breezy conditions under a CI deck to follow.

&&

.MARINE...

Southerly winds will increase this morning becoming more westerly
late this morning. A Small Craft Advisory is in effect until
tomorrow morning. Winds will become northwesterly Friday night as a
cold front moves through.

&&

.FIRE WEATHER...

Red Flag conditions are not forecast over the next few days. Dispersion
indices are forecast to be marginally high behind a cold front
this afternoon, but should fall back into the acceptable range by
tomorrow afternoon.

&&

.HYDROLOGY...

A few local rivers remain in minor flood stage at this time. Some
additional rises are possible today and tonight as more rain moves
in. About one inch of rain is expected today with isolated higher
amounts possible. Drier weather is expected this weekend and next
week.

&&

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @NWSTallahassee.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   69  44  62  42  69 / 100   0   0   0   0
Panama City   66  47  61  47  66 /  80   0   0   0   0
Dothan        66  43  60  42  66 /  70   0   0   0   0
Albany        67  43  61  42  67 / 100   0   0   0   0
Valdosta      69  44  61  43  67 /  90   0   0   0   0
Cross City    70  48  62  43  69 / 100  10   0   0   0
Apalachicola  69  48  61  47  65 / 100  10   0   0   0

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through Saturday morning for Coastal Bay-
     Coastal Franklin-Coastal Gulf-South Walton.

GA...None.
AL...None.
GM...Small Craft Advisory until 7 AM EST Saturday for Coastal Waters
     From Ochlockonee River to Apalachicola Fl out to 20 Nm-
     Coastal waters from Mexico Beach to Apalachicola FL out 20
     NM-Coastal waters from Mexico Beach to Okaloosa Walton
     County Line FL out 20 NM-Waters from Suwannee River to
     Apalachicola FL from 20 to 60 NM-Waters from Apalachicola
     to Mexico Beach FL from 20 to 60 NM-Waters from Mexico
     Beach to Okaloosa Walton County Line FL from 20 to 60 NM.

&&

NEAR TERM...Harrigan
SHORT TERM...McD
LONG TERM...McD
AVIATION...Harrigan
MARINE...McD
FIRE WEATHER...Harrigan
HYDROLOGY...McD

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 4, 5:12 AM CSTSpecial Marine WarningTAE33 min
Jan 4, 5:52 AM CSTSpecial Marine WarningTAE53 min
Jan 4, 6:07 AM CSTSevere Thunderstorm WarningTAEFranklin, Liberty, Wakulla38 min
Jan 4, 6:52 AM CSTSpecial Marine WarningTAE53 min
Jan 4, 7:30 AM CSTSevere Thunderstorm WarningTAEGadsden, Leon45 min
Jan 4, 7:43 AM CSTSpecial Marine WarningTAE62 min
Jan 4, 7:48 AM CSTSevere Thunderstorm WarningTAELeon, Wakulla27 min
Jan 4, 8:06 AM CSTSevere Thunderstorm WarningTAEJefferson, Leon, Wakulla24 min
Jan 4, 9:52 AM CSTSpecial Marine WarningTAE68 min
Jan 4, 10:17 AM CSTSpecial Weather StatementTAELafayette43 min
Jan 4, 10:51 AM CSTSpecial Marine WarningTAE54 min
Jan 4, 1:29 PM CSTRiver Flood WarningTAEJefferson, Madison, Taylor4 days
Jan 4, 4:34 AM CSTSevere Thunderstorm WarningTAEClay26 min
Jan 4, 4:37 AM CSTTornado WarningTAEClay, Quitman12 min
Jan 4, 5:26 AM CSTSevere Thunderstorm WarningTAERandolph, Terrell17 min
Jan 4, 6:31 AM CSTSevere Thunderstorm WarningTAEBaker, Colquitt, Dougherty, Mitchell, Worth44 min
Jan 4, 6:54 AM CSTTornado WarningTAEMitchell36 min
Jan 4, 9:25 AM CSTSpecial Weather StatementTAEBen Hill35 min
Jan 4, 4:03 AM CSTTornado WarningTAEDale, Henry27 min

Nearby

High Surf Advisories in Florida, 2019Every high surf advisory 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.