Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

July 26, 2021Glynn County, Georgia

NWS Jacksonville, FL issued this special weather statement at Jul 26, 2021, 11:21 PM EDT for Glynn County, Georgia. It was in force for 39 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 26, 2021, 11:21 PM EDT (03:21 UTC)
Expired
Jul 27, 2021, 12:00 AM EDT
In force
39 min
Issued by
NWS Jacksonville, FL

County Glynn County, GA

The radar

The Jacksonville radar (KJAX), 94 km from the middle of the area, began a volume at 03:24 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 00:00Z, 3.4 hours before the alert went out and 93 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 00:00Z on 2021-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2584 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 00:00Z on 2021-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
2584 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
633 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

245 
WWUS82 KJAX 270321
SPSJAX

Special Weather Statement
National Weather Service Jacksonville FL
1121 PM EDT Mon Jul 26 2021
 
GAZ154-270400-
Coastal Glynn GA-
1121 PM EDT Mon Jul 26 2021

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL GLYNN COUNTY UNTIL
MIDNIGHT EDT...

* At 1121 PM EDT, National Weather Service meteorologists were 
  tracking heavy showers and thunderstorms near Country Club 
  Estates, or near St. Simons Island, moving northwest at 5 mph.

* Minor flooding due to heavy rainfall is possible with this storm.

* Locations impacted include...
  Boys Estate.

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 3126 8127 3122 8142 3128 8152 3131 8150
      3134 8147 3133 8145 3133 8144 3131 8144
      3128 8139 3129 8139 3128 8138 3130 8137
      3130 8134 3129 8134 3128 8129
TIME...MOT...LOC 0321Z 152DEG 6KT 3127 8142 

$$

KB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 1:18 AM EDTSpecial Weather StatementJAXClay42 min
Jul 27, 2:26 AM EDTSpecial Weather StatementJAXColumbia49 min
Jul 27, 11:37 AM EDTSpecial Weather StatementJAXSuwannee53 min
Jul 27, 11:39 AM EDTSpecial Weather StatementJAXHamilton51 min
Jul 27, 11:45 AM EDTSpecial Weather StatementJAXBaker45 min
Jul 27, 12:28 PM EDTSpecial Weather StatementJAXBaker, Columbia62 min
Jul 27, 12:42 PM EDTSpecial Weather StatementJAXGilchrist48 min
Jul 27, 12:57 PM EDTSpecial Weather StatementJAXDuval48 min
Jul 27, 1:18 PM EDTSpecial Weather StatementJAXBradford42 min
Jul 27, 1:29 PM EDTSpecial Weather StatementJAXDuval46 min
Jul 27, 1:32 PM EDTSpecial Weather StatementJAXAlachua43 min
Jul 27, 2:08 PM EDTSpecial Weather StatementJAXBradford52 min
Jul 27, 2:27 PM EDTSpecial Weather StatementJAXPutnam48 min
Jul 27, 2:37 PM EDTSpecial Weather StatementJAXSaint Johns38 min
Jul 27, 3:11 PM EDTSpecial Weather StatementJAXSaint Johns49 min
Jul 27, 3:36 PM EDTSpecial Marine WarningJAX67 min
Jul 27, 3:40 PM EDTSpecial Weather StatementJAXFlagler50 min
Jul 27, 3:46 PM EDTAreal Flood WarningJAXSaint Johns55 min
Jul 27, 4:01 PM EDTSpecial Weather StatementJAXSaint Johns29 min
Jul 27, 1:27 PM EDTSpecial Weather StatementJAXCoffee48 min
Jul 27, 2:33 PM EDTSpecial Weather StatementJAXAtkinson42 min
Jul 27, 2:53 PM EDTSpecial Weather StatementJAXCoffee37 min
Jul 27, 3:16 PM EDTSpecial Weather StatementJAXAtkinson29 min
Jul 27, 4:22 PM EDTSpecial Weather StatementJAXCamden38 min
Jul 27, 7:25 PM EDTSpecial Weather StatementJAXCamden50 min
Jul 27, 7:31 PM EDTSpecial Weather StatementJAXWayne44 min

Nearby

Special Weather Statements in Georgia, 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.