Alert archive / South Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Columbia, SC

June 25, 2018Chesterfield County, South Carolina

NWS Columbia, SC issued this special weather statement at Jun 25, 2018, 6:50 PM EDT for Chesterfield County, South Carolina. It was in force for 25 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 25, 2018, 6:50 PM EDT (22:50 UTC)
Expired: Jun 25, 2018, 7:15 PM EDT
In force: 25 min
Issued by: NWS Columbia, SC

County Chesterfield County, SC

The radar

The Columbia radar (KCAE), 138 km from the middle of the area, began a volume at 22:50 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 157 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 225 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1262 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 Columbia, SC wrote its last area forecast discussion before this special weather statement went out at Jun 25, 3:33 PM EDT, 3 hours 17 minutes earlier.

Area forecast discussion, Jun 25, 3:33 PM EDT, 3 hours 17 minutes before

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Hazardous weather outlook, Jun 25, 2:17 AM EDT, 16 hours 33 minutes before

Hazardous Weather Outlook
National Weather Service Columbia SC
217 AM EDT Mon Jun 25 2018

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-260630-
Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield-
McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-
Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-
Bamberg-
217 AM EDT Mon Jun 25 2018

This Hazardous Weather Outlook is for the Midlands of South Carolina
and the Central Savannah River area of Georgia.

.DAY ONE...Today and Tonight.

Thunderstorms with damaging wind and hail will be possible this
afternoon and tonight. The threat will be greatest this evening.
There will also be a possibility of very heavy rain leading to
localized flooding this afternoon and especially tonight.

It will be hot today with heat index values peaking near 105.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required this afternoon and tonight.

In the hours before

Local storm report, Jun 25, 5:01 PM EDT, 1 hour 49 minutes before

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Local storm report, Jun 25, 5:09 PM EDT, 1 hour 41 minutes before

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Local storm report, Jun 25, 5:19 PM EDT, 1 hour 31 minutes before

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Local storm report, Jun 25, 5:37 PM EDT, 1 hour 13 minutes before

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Local storm report, Jun 25, 5:41 PM EDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
541 PM EDT MON JUN 25 2018

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

0353 PM     TSTM WND DMG     1 SW PATRICK            34.56N 80.06W
06/25/2018                   CHESTERFIELD       SC   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTED A TREE DOWN JUST
            SOUTH OF PATRICK ALONG HIGHWAY 1.

&&

LCV

Special weather statement, Jun 25, 6:50 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Columbia SC
650 PM EDT MON JUN 25 2018

SCZ016-252315-
Chesterfield SC-
650 PM EDT MON JUN 25 2018

...Strong Thunderstorms Will Impact Portions of northeastern
Chesterfield County Until 715 PM EDT....

At 650 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Chesterfield, or 7 miles northwest of
Cheraw, moving southeast at 15 mph.

  HAZARD...strong winds 45 to 55 mph and up to penny sized hail.

  IMPACT...expect minor damage to tree limbs and blowing around of
           light, unsecured objects. Minor hail damage to plants,
           trees and crops is possible. Damage to windshields is
           unlikely.

Some locations in the path of this storm include...
Cheraw, Chesterfield and McFarlan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify. Monitor NOAA Weather Radio, local radio and
television stations for additional information and possible warnings
from the National Weather Service.

A severe thunderstorm watch is in effect. Thunderstorms can produce
large hail, damaging winds and isolated 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 3450 7989 3470 8014 3481 8005 3481 7994
      3476 7993 3474 7989 3468 7986 3466 7983
      3466 7981 3465 7980 3464 7980 3462 7979
TIME...MOT...LOC 2250Z 304DEG 14KT 3474 8001

fwa

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 8:00 PM EDT	Special Weather Statement	CAE	Lexington, Richland	45 min
Jun 24, 8:09 PM EDT	Special Weather Statement	CAE	Kershaw	36 min
Jun 24, 8:22 PM EDT	Severe Thunderstorm Warning	CAE	Richland	23 min
Jun 24, 8:38 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Richland, Sumter	37 min
Jun 24, 9:09 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg, Sumter	36 min
Jun 24, 9:11 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Edgefield, McCormick	64 min
Jun 24, 9:27 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon	33 min
Jun 24, 9:35 PM EDT	Severe Thunderstorm Warning	CAE	Aiken	55 min
Jun 24, 9:40 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	50 min
Jun 24, 10:00 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Orangeburg	60 min
Jun 24, 10:09 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	36 min
Jun 24, 10:30 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Orangeburg	30 min
Jun 24, 10:40 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	35 min
Jun 24, 10:47 PM EDT	Areal Flood Advisory	CAE	Aiken	3 hr
Jun 24, 10:52 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Orangeburg	53 min
Jun 24, 11:42 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	33 min
Jun 25, 2:43 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	47 min
Jun 25, 3:37 PM EDT	Special Weather Statement	CAE	Clarendon	38 min
Jun 25, 3:48 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	42 min
Jun 25, 3:51 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	39 min
Jun 25, 3:52 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg	38 min
Jun 25, 4:24 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster	51 min
Jun 25, 4:56 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield	34 min
Jun 25, 5:34 PM EDT	Severe Thunderstorm Warning	CAE	Lee	26 min
Jun 25, 5:57 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Kershaw, Lee, Sumter	48 min
Jun 25, 6:43 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Richland	32 min
Jun 25, 6:57 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Sumter	48 min
Jun 25, 6:57 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	63 min
Jun 25, 7:13 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Lexington, Orangeburg, Richland	32 min
Jun 25, 7:24 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick	66 min
Jun 25, 7:39 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Lexington, Newberry, Richland, Saluda	66 min
Jun 25, 7:41 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Lexington, Orangeburg, Richland, Sumter	34 min
Jun 24, 8:14 PM EDT	Special Weather Statement	CAE	McDuffie	31 min
Jun 24, 8:25 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, McDuffie	65 min
Jun 24, 9:24 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Lincoln, McDuffie	51 min

Nearby

Special Weather Statements in South Carolina, 2018 Every 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.