Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

April 10, 2021Hamilton County, Suwannee County, Florida; Atkinson County, Clinch County, Echols County, Georgia

NWS Jacksonville, FL issued this special weather statement at Apr 10, 2021, 1:41 PM EDT for Hamilton County, Suwannee County, Florida; Atkinson County, Clinch County, Echols County, Georgia. It was in force for 64 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
Apr 10, 2021, 1:41 PM EDT (17:41 UTC)
Expired
Apr 10, 2021, 2:45 PM EDT
In force
64 min
Issued by
NWS Jacksonville, FL

Counties Hamilton County, FL, Suwannee County, FL, Atkinson County, GA, Clinch County, GA, Echols County, GA

The radar

The Moody AFB radar (KVAX), 23 km from the middle of the area, began a volume at 17:42 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, 5.7 hours before the alert went out and 125 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 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 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
159 J/kg
Mixed-layer CIN
-225 J/kg
Mixed-layer LCL
965 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
91 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 Apr 10, 1:33 PM EDT, 8 minutes earlier.

Area forecast discussion, Apr 10, 1:33 PM EDT, 8 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.
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In the hours before

Special weather statement, Apr 10, 1:41 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
141 PM EDT Sat Apr 10 2021

FLZ020-021-GAZ134-149-162-163-101845-
Hamilton FL-Suwannee FL-Bacon GA-Atkinson GA-Clinch GA-Echols GA-
141 PM EDT Sat Apr 10 2021

...SIGNIFICANT WEATHER ADVISORY FOR SUWANNEE...HAMILTON...ECHOLS...
ATKINSON...SOUTHWESTERN BACON AND NORTHWESTERN CLINCH COUNTIES UNTIL
245 PM EDT...

* At 139 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from near
  Nashville to 16 miles south of Perry. Movement was east at 35 mph.

* Winds in excess of 45 mph possible with these storms.

* Locations impacted include...
  Live Oak, Jasper, Homerville, Pearson, Willacoochee, Jennings,
  White Springs, Argyle, Statenville and Suwannee River State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Jacksonville on
Facebook and Twitter.

&&

LAT...LON 3063 8314 3080 8313 3087 8297 3118 8297
      3119 8305 3138 8311 3142 8296 3137 8264
      3122 8269 3111 8264 3032 8275 3032 8280
      2993 8280 2988 8289 3008 8307 3012 8323
      3026 8325 3039 8317 3063 8331
TIME...MOT...LOC 1739Z 259DEG 30KT 3126 8330 2989 8348

KB

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 2:30 AM EDTSmall Craft AdvisoryJAX24 hr
Apr 10, 2:33 AM EDTRip Current StatementJAXDuval, Flagler, Nassau17 hr
Apr 10, 2:18 PM EDTSevere Thunderstorm WarningJAXHamilton, Suwannee42 min
Apr 10, 2:45 PM EDTSpecial Weather StatementJAXColumbia, Hamilton, Suwannee60 min
Apr 10, 2:59 PM EDTSevere Thunderstorm WarningJAXColumbia, Hamilton46 min
Apr 10, 3:34 PM EDTSpecial Weather StatementJAXAlachua, Bradford, Marion, Union56 min
Apr 10, 3:34 PM EDTSpecial Weather StatementJAXBaker56 min
Apr 10, 4:08 PM EDTSpecial Weather StatementJAXNassau67 min
Apr 10, 4:14 PM EDTSpecial Marine WarningJAX61 min
Apr 10, 4:29 PM EDTSpecial Weather StatementJAXBradford, Clay, Duval, Putnam61 min
Apr 10, 4:44 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau34 min
Apr 10, 4:57 PM EDTSpecial Weather StatementJAXDuval33 min
Apr 10, 4:58 PM EDTSpecial Marine WarningJAX2 hr
Apr 10, 5:12 PM EDTSpecial Marine WarningJAX111 min
Apr 10, 5:15 PM EDTSpecial Weather StatementJAXFlagler, Putnam, Saint Johns60 min
Apr 10, 5:15 PM EDTSpecial Weather StatementJAXFlagler, Putnam, Saint Johns60 min
Apr 10, 6:11 PM EDTSpecial Marine WarningJAX2 hr
Apr 10, 7:08 PM EDTSpecial Marine WarningJAX67 min
Apr 10, 2:13 PM EDTSevere Thunderstorm WarningJAXClinch47 min
Apr 10, 4:39 PM EDTSpecial Weather StatementJAXCamden, Glynn51 min
Apr 10, 4:49 PM EDTTornado WarningJAXCamden, Glynn26 min

Nearby

Special Weather Statements in Georgia, 2021Special 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.