Alert archive / South Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Charleston, SC
NWS Charleston, SC issued this special weather statement at Oct 23, 2017, 5:32 PM EDT for Allendale County, South Carolina. It was in force for 28 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
- Oct 23, 2017, 5:32 PM EDT (21:32 UTC)
- Expired
- Oct 23, 2017, 6:00 PM EDT
- In force
- 28 min
- Issued by
- NWS Charleston, SC
County Allendale County, SC
The radar
The Charleston,SC radar (KCLX), 41 km from the middle of the area, began a volume at 21:36 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, 9.5 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.
- Mixed-layer CAPE
- 252 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
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 Oct 23, 4:11 PM EDT, 1 hour 21 minutes earlier.
Area forecast discussion, Oct 23, 4:11 PM EDT, 1 hour 21 minutes before
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</html>Hazardous weather outlook, Oct 23, 2:08 PM EDT, 3 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Charleston SC 208 PM EDT Mon Oct 23 2017 AMZ350-352-354-374-GAZ099>101-114>116-118-137-138-140-SCZ047-241815- 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-Candler-Bulloch-Effingham-Tattnall-Evans-Inland Bryan- Inland Chatham-Long-Inland Liberty-Inland McIntosh-Inland Jasper- 208 PM EDT Mon Oct 23 2017 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Severe Thunderstorms: Showers and thunderstorms could impact the region this afternoon into late tonight as a cold front pushes across the region. An isolated severe thunderstorm with damaging winds or even a tornado or waterspout will be possible, mainly from mid- afternoon through early evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. AMZ330-GAZ087-088-SCZ040-042>045-052-241815- Charleston Harbor-Jenkins-Screven-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley-Tidal Berkeley- 208 PM EDT Mon Oct 23 2017 ...TORNADO WATCH 508 IN EFFECT UNTIL 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tornado Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. GAZ117-119-139-141-SCZ048-051-241815- Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh- Beaufort-Coastal Jasper- 208 PM EDT Mon Oct 23 2017 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Moderate Risk for Rip Currents. Severe Thunderstorms: Showers and thunderstorms could impact the region this afternoon into late tonight as a cold front pushes across the region. An isolated severe thunderstorm with damaging winds or even a tornado will be possible, mainly from mid-afternoon through early evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time. SCZ049-050-241815- Coastal Colleton-Charleston- 208 PM EDT Mon Oct 23 2017 ...MODERATE RISK FOR RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...TORNADO WATCH 508 IN EFFECT UNTIL 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Moderate Risk for Rip Currents. Tornado Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
In the hours before
Special weather statement, Oct 23, 3:09 PM EDT, 2 hours 23 minutes before
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</html>Special weather statement, Oct 23, 5:05 PM EDT, 27 minutes before
Special Weather Statement
National Weather Service Charleston SC
505 PM EDT MON OCT 23 2017
GAZ116-138-232130-
Inland Liberty-Inland Bryan-
505 PM EDT MON OCT 23 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN AND LIBERTY
COUNTIES...
At 505 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm 7 miles south of Pembroke, moving northeast at 35
mph.
HAZARD...strong winds 45 to 55 mph.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects.
Some locations in the path of this storm include...
Pembroke, Lanier, Blitchton and Ellabell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3220 8160 3224 8146 3224 8144 3211 8140
3210 8141 3191 8162 3203 8178
TIME...MOT...LOC 2105Z 221DEG 31KT 3203 8164Special weather statement, Oct 23, 5:07 PM EDT, 25 minutes before
Special Weather Statement
National Weather Service Charleston SC
507 PM EDT MON OCT 23 2017
GAZ088-SCZ040-042-232130-
Screven-Allendale-Hampton-
507 PM EDT MON OCT 23 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN...HAMPTON AND
ALLENDALE COUNTIES...
At 507 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from Millhaven to near
Captolo, and moving northeast at 60 mph.
HAZARD...strong winds 45 to 55 mph.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects.
Some locations in the path of these storms include...
Sylvania, Hiltonia, Altman, Hilltonia, Captolo, Dover, Millhaven and
Burtons Ferry Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch is in effect. Thunderstorms can produce tornadoes
suddenly, sometimes with little or no warning. Be alert for rapidly
changing weather conditions and be ready to act quickly if severe
weather is observed or a warning is issued.
&&
LAT...LON 3310 8140 3269 8132 3256 8170 3257 8172
3297 8167 3301 8161
TIME...MOT...LOC 2107Z 232DEG 54KT 3292 8163 3262 8165Special weather statement, Oct 23, 5:32 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Charleston SC
532 PM EDT MON OCT 23 2017
GAZ088-SCZ040-042-232200-
Screven-Allendale-Hampton-
532 PM EDT MON OCT 23 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF SCREVEN...HAMPTON AND
ALLENDALE COUNTIES...
At 532 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near Burtons Ferry
Landing to 10 miles east of Sylvania, and moving northeast at 45 mph.
HAZARD...strong winds 45 to 55 mph.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects.
Some locations in the path of these storms include...
Allendale, Fairfax, Gifford, Sycamore, Luray, Barton, Burtons Ferry
Landing and Seigling.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch is in effect. Thunderstorms can produce tornadoes
suddenly, sometimes with little or no warning. Be alert for rapidly
changing weather conditions and be ready to act quickly if severe
weather is observed or a warning is issued.
&&
LAT...LON 3308 8123 3278 8121 3273 8151 3296 8151
TIME...MOT...LOC 2132Z 233DEG 38KT 3294 8145 3280 8146The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 2:26 PM EDT | Special Marine Warning | CHS | 64 min | |
| Oct 23, 2:44 PM EDT | Special Weather Statement | CHS | Dorchester | 31 min |
| Oct 23, 2:57 PM EDT | Special Weather Statement | CHS | Dorchester | 33 min |
| Oct 23, 3:05 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Dorchester | 24 min |
| Oct 23, 3:09 PM EDT | Special Weather Statement | CHS | Allendale | 36 min |
| Oct 23, 5:56 PM EDT | Special Weather Statement | CHS | Hampton | 34 min |
| Oct 23, 6:40 PM EDT | Special Weather Statement | CHS | Jasper | 35 min |
| Oct 23, 6:50 PM EDT | Special Marine Warning | CHS | 55 min | |
| Oct 23, 7:45 PM EDT | Special Marine Warning | CHS | 60 min | |
| Oct 23, 7:58 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Colleton, Dorchester | 62 min |
| Oct 23, 4:47 PM EDT | Special Weather Statement | CHS | Liberty, McIntosh | 28 min |
| Oct 23, 4:53 PM EDT | Special Weather Statement | CHS | Tattnall | 37 min |
| Oct 23, 5:05 PM EDT | Special Weather Statement | CHS | Bryan | 25 min |
| Oct 23, 5:07 PM EDT | Special Weather Statement | CHS | Screven | 23 min |
Nearby
Special Weather Statements in South Carolina, 2017Every special weather statement in 2017
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.