Alert archive / Florida / High Surf Advisories in 2024

High Surf Advisory 19, NWS Mobile, AL

December 28, 2024Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this high surf advisory at Dec 28, 2024, 2:47 AM CST for Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at Dec 28, 2024, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Dec 28, 2024, 2:47 AM CST (08:47 UTC)
In effect from
Dec 28, 2024, 6:00 PM CST
Expired
Dec 29, 2024, 12:00 PM CST
In force
18 hr
Issued by
NWS Mobile, AL

Counties Baldwin County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 08:51 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.8 hours before the alert went out and 227 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, Slidell Radar S, LA at 00:00Z on 2024-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1057 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, Slidell Radar S, LA at 00:00Z on 2024-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.193958Sfc1 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
1057 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.3

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 Mobile, AL wrote its last area forecast discussion before this high surf advisory went out at Dec 27, 11:34 PM CST, 3 hours 13 minutes earlier.

Area forecast discussion, Dec 27, 11:34 PM CST, 3 hours 13 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Dec 27, 9:49 PM CST, 4 hours 58 minutes before
Special Weather Statement
National Weather Service Mobile AL
949 PM CST Fri Dec 27 2024

ALZ265-280415-
Mobile Coastal AL-
949 PM CST Fri Dec 27 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL MOBILE COUNTY
THROUGH 1015 PM CST...

At 949 PM CST, Doppler radar was tracking a strong thunderstorm 4
miles north of Alabama Port, or 9 miles east of Bayou La Batre,
moving east at 20 mph.

HAZARD...Winds in excess of 30 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of south central
Mobile County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3037 8819 3049 8817 3051 8805 3038 8806
TIME...MOT...LOC 0349Z 259DEG 17KT 3043 8809

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...30 MPH

JLH
Local storm report, Dec 27, 9:53 PM CST, 4 hours 54 minutes before
Preliminary Local Storm Report
National Weather Service Mobile AL
953 PM CST Fri Dec 27 2024

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

0830 PM     Tstm Wnd Gst     Mobile Regional Airport 30.68N 88.24W
12/27/2024  M55 MPH          Mobile             AL   Mesonet

            Mesonet station (GW2672) at the NWS Mobile
            office measured a wind gust of 55mph.

&&

mb
Special weather statement, Dec 27, 10:30 PM CST, 4 hours 17 minutes before
Special Weather Statement
National Weather Service Mobile AL
1030 PM CST Fri Dec 27 2024

ALZ264-FLZ201>204-280515-
Baldwin Central AL-Escambia Inland FL-Santa Rosa Coastal FL-
Escambia Coastal FL-Santa Rosa Inland FL-
1030 PM CST Fri Dec 27 2024

...STRONG THUNDERSTORMS WILL IMPACT EAST CENTRAL BALDWIN...WEST
CENTRAL SANTA ROSA AND CENTRAL ESCAMBIA COUNTIES THROUGH 1115 PM
CST...

At 1030 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles southwest of Bratt to 8 miles west of
Molino to 12 miles west of Gonzalez to 7 miles east of Robertsdale.
Movement was east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pea Ridge, Goulding, Ferry Pass, Ensley, Molino, Gonzalez, Pace,
Floridatown, Point Baker, and Brent.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3050 8744 3052 8745 3053 8751 3052 8751
      3059 8772 3065 8762 3075 8761 3079 8764
      3079 8756 3085 8763 3085 8726 3084 8706
      3066 8704 3042 8720
TIME...MOT...LOC 0430Z 279DEG 19KT 3082 8756 3079 8750 3071 8745 3061
8750 3054 8759

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

JLH
Special weather statement, Dec 28, 12:48 AM CST, 1 hour 59 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 27, 7:13 PM CSTAreal Flood AdvisoryMOBMobile, Washington3 hr
Dec 27, 8:10 PM CSTSpecial Weather StatementMOBMobile35 min
Dec 27, 8:16 PM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile44 min
Dec 27, 8:20 PM CSTSpecial Marine WarningMOB40 min
Dec 27, 8:21 PM CSTTornado WarningMOBBaldwin, Mobile39 min
Dec 27, 8:58 PM CSTSevere Thunderstorm WarningMOBBaldwin47 min
Dec 27, 9:04 PM CSTFlash Flood WarningMOBMobile7 hr
Dec 27, 9:49 PM CSTSpecial Weather StatementMOBMobile26 min
Dec 27, 9:54 PM CSTSpecial Marine WarningMOB51 min
Dec 27, 10:19 PM CSTSpecial Marine WarningMOB26 min
Dec 27, 10:21 PM CSTSevere Thunderstorm WarningMOBBaldwin39 min
Dec 27, 10:34 PM CSTSpecial Marine WarningMOB56 min
Dec 27, 10:36 PM CSTFlash Flood WarningMOBBaldwin5 hr
Dec 27, 11:00 PM CSTFlash Flood WarningMOBMobile5 hr
Dec 27, 11:25 PM CSTSpecial Marine WarningMOB95 min
Dec 28, 12:41 AM CSTSpecial Marine WarningMOB64 min
Dec 28, 12:48 AM CSTSpecial Weather StatementMOBMobile42 min
Dec 28, 1:59 AM CSTSpecial Marine WarningMOB61 min
Dec 28, 2:10 AM CSTSpecial Marine WarningMOB2 hr
Dec 28, 2:35 AM CSTSmall Craft AdvisoryMOB27 hr
Dec 28, 2:47 AM CSTCoastal Flood AdvisoryMOBBaldwin, Mobile22 hr
Dec 28, 4:11 AM CSTSpecial Weather StatementMOBBaldwin, Escambia, Mobile94 min
Dec 28, 4:17 AM CSTSpecial Marine WarningMOB118 min
Dec 28, 4:20 AM CSTSpecial Marine WarningMOB115 min
Dec 28, 4:26 AM CSTSpecial Marine WarningMOB2 hr
Dec 28, 8:37 AM CSTSpecial Marine WarningMOB83 min
Dec 28, 10:30 AM CSTSpecial Marine WarningMOB60 min
Dec 27, 10:30 PM CSTSpecial Weather StatementMOBEscambia45 min
Dec 27, 10:43 PM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa30 min

Nearby

High Surf Advisories in Florida, 2024High Surf Advisories in Alabama, 2024Every high surf advisory in 2024

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.