Alert archive / Georgia / Special Weather Statements in 2018
Special Weather Statement, NWS Charleston, SC
NWS Charleston, SC issued this special weather statement at Jun 11, 2018, 4:31 PM EDT for Effingham County, Georgia. It was in force for 14 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
- Jun 11, 2018, 4:31 PM EDT (20:31 UTC)
- Expired
- Jun 11, 2018, 4:45 PM EDT
- In force
- 14 min
- Issued by
- NWS Charleston, SC
County Effingham County, GA
The radar
The Charleston,SC radar (KCLX), 40 km from the middle of the area, began a volume at 20:32 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
Charleston AFB, SC (KCHS), launched 12:00Z, 8.5 hours before the alert went out and 141 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.
- Mixed-layer CAPE
- 644 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 Charleston, SC wrote its last area forecast discussion before this special weather statement went out at Jun 11, 4:04 PM EDT, 27 minutes earlier.
Area forecast discussion, Jun 11, 4:04 PM EDT, 27 minutes before
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</html>Hazardous weather outlook, Jun 11, 11:51 AM EDT, 4 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Charleston SC 1151 AM EDT Mon Jun 11 2018 AMZ330-350-352-354-374-GAZ087-088-099>101-114>116-118-137-138-140- SCZ040-042>045-047-052-121600- Charleston Harbor- Waters from South Santee River to Edisto Beach SC out 20 NM- Waters from Edisto Beach SC to Savannah GA out 20 NM- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM-Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Inland Chatham-Long-Inland Liberty-Inland McIntosh- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Inland Jasper-Tidal Berkeley- 1151 AM EDT Mon Jun 11 2018 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Severe Thunderstorms: Scattered to numerous thunderstorms will develop across the area late this afternoon into early tonight. Clusters of storms from the northwest will merge with sea breeze boundary, while other storms will develop from south of the Altamaha River and move into the area. Some of the storms will become severe, producing damaging winds and large hail. Frequent lightning and heavy rain will also occur. The risk for severe weather is greatest between 4 pm and 11 pm. Monitor the latest weather conditions through the day and be prepared to take action should threatening weather approach or if a warning is issued for your area. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. GAZ117-119-139-141-SCZ048>051-121600- Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh- Beaufort-Coastal Colleton-Charleston-Coastal Jasper- 1151 AM EDT Mon Jun 11 2018 This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Severe Thunderstorms: Scattered to numerous thunderstorms will develop across the area late this afternoon into early tonight. Clusters of storms from the northwest will merge with sea breeze boundary, while other storms will develop from south of the Altamaha River and move into the area. Some of the storms will become severe, producing damaging winds and large hail. Frequent lightning and heavy rain will also occur. The risk for severe weather is greatest between 4 pm and 11 pm. Monitor the latest weather conditions through the day and be prepared to take action should threatening weather approach or if a warning is issued for your area. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The combination of the Perigee, the new moon and occasional onshore winds should allow the evening high tides Tuesday through Thursday to reach coastal flood advisory levels. Any heavy rain near the times of these high tides will increase the risk of flooding. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
In the hours before
Special weather statement, Jun 11, 3:36 PM EDT, 55 minutes before
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</html>Special weather statement, Jun 11, 4:31 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:36 PM EDT | Special Weather Statement | CHS | Allendale | 24 min |
| Jun 11, 4:16 PM EDT | Special Weather Statement | CHS | Hampton | 29 min |
| Jun 11, 4:50 PM EDT | Special Weather Statement | CHS | Jasper | 25 min |
| Jun 11, 6:19 PM EDT | Special Weather Statement | CHS | Colleton | 11 min |
| Jun 11, 6:30 PM EDT | Special Weather Statement | CHS | Colleton, Dorchester | 30 min |
| Jun 11, 6:27 PM EDT | Special Weather Statement | CHS | Candler | 33 min |
| Jun 11, 6:50 PM EDT | Special Weather Statement | CHS | Tattnall | 25 min |
| Jun 11, 7:14 PM EDT | Areal Flood Advisory | CHS | Evans, Tattnall | 3 hr |
| Jun 11, 7:17 PM EDT | Special Weather Statement | CHS | Long | 28 min |
| Jun 11, 7:22 PM EDT | Severe Thunderstorm Warning | CHS | Liberty, Long, Tattnall | 53 min |
Nearby
Special Weather Statements in Georgia, 2018Every special weather statement in 2018
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.