Alert archive / South Carolina / Special Weather Statements in 2021
Special Weather Statement, NWS Wilmington, NC
NWS Wilmington, NC issued this special weather statement at Jun 7, 2021, 5:21 PM EDT for Darlington County, South Carolina. It was in force for 24 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 7, 2021, 5:21 PM EDT (21:21 UTC)
- Expired
- Jun 7, 2021, 5:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Wilmington, NC
County Darlington County, SC
The radar
The Columbia radar (KCAE), 131 km from the middle of the area, began a volume at 21:22 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, 9.4 hours before the alert went out and 172 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
- 1579 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 582 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
<!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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</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 Wilmington, NC wrote its last area forecast discussion before this special weather statement went out at Jun 7, 3:41 PM EDT, 1 hour 40 minutes earlier.
Area forecast discussion, Jun 7, 3:41 PM EDT, 1 hour 40 minutes before
Area Forecast Discussion National Weather Service Wilmington NC 341 PM EDT Mon Jun 7 2021 .SYNOPSIS... Warm and moist flow continues to funnel in from the Atlantic, due to Bermuda high pressure. Look for scattered showers and thunderstorms in the afternoon, especially as the sea breeze cranks up. A cold front approaches the area by this weekend, which brings more widespread chances of showers and thunderstorms. && .NEAR TERM /THROUGH TUESDAY NIGHT/... Synoptic conditions will change very little over the next 24 hours or so. This pattern consists of broad troughing across the Mississippi Valley and broad but somewhat weak ridging along the East Coast. Precipitable waters are hovering around two inches and will continue to do to although values may be just slightly lower Tuesday. Convection should be basically the same some early initiation along the sea breeze then moving inland. For temperatures it is the season for little day to day change with highs Tuesday in the middle to upper 80s and lows in and around 70. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... At the surface, broad Bermuda high continues to usher in warm, moist return flow from the Atlantic. Meanwhile, a ridge in the mid- and upper-levels gets pinched between an upper low offshore, and another low in the Great Lakes, which slowly maneuvers its way to the east- southeast. This creates a nice veering pattern in the three- dimensional column, with southwesterly flow in the lower levels, and north-northwesterly flow in the mid- to upper- levels. In spite of this, lack of larger synoptic activity means the short term period will be dominated by small scale patterns, including the seabreeze and a weak Piedmont trough. Precipitable water values still linger around 2.00", which is greater than the 90th percentile for this time of year, according to the SPC Sounding Climatology page (spc.noaa.gov/exper/soundingclimo/). Look for a chance of scattered showers and storms in the afternoon, with the highest chances located inland, as the seabreeze fires up convection. High temperatures generally in the mid-to-upper 80s, with lows near 70. && .LONG TERM /FRIDAY THROUGH MONDAY/... Aforementioned Great Lakes trough drops southward, lingering near the Ohio River Valley by Friday. This will help spawn a cold front that will push southward through the mid-Atlantic states, reaching the Carolinas by the weekend. Expect a continuation of the small features (seabreeze and Piedmont trough), bringing scattered showers and storm chances for Friday afternoon and evening. Though the cold front seems to be relatively weak, it does bring more widespread rain and convection chances for the weekend. Still seeing the trend where the GFS and CMC both have the front moving out of the area by Sunday afternoon, while, the ECMWF has the front stalling just offshore, which keeps the rain around through as late as Monday afternoon. While the timing of the front remains in question, there does seem to be a (brief) drying trend, in which precipitable water values drop down to the 1.50-1.75" range. Frontal activity could increase pressure gradient and swells enough to spawn a brief Small Craft Advisory, which, as of this forecast cycle, is most likely to occur Friday night into Saturday morning. While winds and seas do not meet the criteria yet, this will need to be monitored over time. High temperatures in the upper 80s to near 90 Friday and Saturday decrease back to the mid 80s by Sunday and Monday. Low temperatures Friday night in the lower 70s decrease slightly to the upper 60s Saturday night through the rest of the period. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... Activity is already waning at this point. Look for scattered convection along the resultant this afternoon, mainly over South Carolina. A rumble of thunder is possible. Good low level moisture tonight will allow MVFR ceilings, with possible IFR ceilings inland. Tuesday, a bit more of the same, with less coverage. Extended Outlook...Flight category restrictions are possible in scattered showers and thunderstorms this period, with patchy fog and stratus possible in the early mornings. && .MARINE... Through Tuesday Night...Persistence forecast as Bermuda High Pressure will continue to drive a very modest south to occasionally southwest flow across all waters through early Wednesday. Wind speeds will be on the lower end of a 10-15 knot range. Significant seas in the absence of any significant swell component will hover consistently around two feet. Wednesday through Saturday...Winds remain out of the southwest through most of the period, as a stagnant weather pattern will soon become a little more organized ahead of a cold front. Winds remain consistent at 10-15kts, but increase to 15-20kts by Friday as the cold front approaches. Winds relax back to 10-15kts Saturday, as they veer more westerly. Seas hang in at 2-3ft through Wednesday and Thursday, before increasing to 3-4ft by Friday and Saturday, with a few 5ft swells possible. This does not reach the criteria yet for Small Craft Advisory, but this will need to be monitored as the forecast changes over time. && .ILM WATCHES/WARNINGS/ADVISORIES... SC...None. NC...None. MARINE...None. && SYNOPSIS...ILM NEAR TERM...SHK SHORT TERM...IGB LONG TERM...IGB AVIATION...43 MARINE...SHK/IGB
Hazardous weather outlook, Jun 7, 3:25 PM EDT, 1 hour 56 minutes before
Hazardous Weather Outlook National Weather Service Wilmington NC 325 PM EDT Mon Jun 7 2021 NCZ087-096-099-105-107-109-SCZ017-023-024-032-033-039-054>056-058- 059-081930- Robeson-Bladen-Columbus-Inland Pender-Inland New Hanover- Inland Brunswick-Marlboro-Darlington-Dillon-Florence-Marion- Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown- Central Horry-Northern Horry- 325 PM EDT Mon Jun 7 2021 This Hazardous Weather Outlook is for southeast North Carolina and northeast South Carolina. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ106-108-110-081930- Coastal Pender-Coastal New Hanover-Coastal Brunswick- 325 PM EDT Mon Jun 7 2021 ...MODERATE RISK OF RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast North 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 of Rip Currents. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. AMZ250-252-254-256-081930- Coastal waters from Surf City to Cape Fear NC out 20 nm- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 nm- Coastal waters from Murrells Inlet to South Santee River SC out 20 nm- 325 PM EDT Mon Jun 7 2021 This Hazardous Weather Outlook is for the adjacent Coastal Waters. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Small craft advisory conditions are possible late Friday through Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jun 7, 5:21 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Wilmington NC
521 PM EDT Mon Jun 7 2021
SCZ017-023-072145-
Marlboro SC-Darlington SC-
521 PM EDT Mon Jun 7 2021
...SPECIAL WEATHER STATEMENT FOR NORTHEASTERN DARLINGTON AND SOUTH
CENTRAL MARLBORO COUNTIES UNTIL 545 PM EDT...
At 521 PM EDT, Doppler radar was tracking a strong thunderstorm over
Mechanicsville, or near Darlington, moving north at 10 mph.
Pea size hail will be possible with this storm.
Locations impacted include...
Mont Clare and Mechanicsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Thunderstorms can pose a variety of threats including gusty winds,
small hail, cloud to ground lightning, and localized flooding. It is
recommended that you remain indoors until the storm passes.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3449 7991 3449 7989 3450 7987 3446 7964
3431 7975 3431 7981
TIME...MOT...LOC 2121Z 184DEG 8KT 3435 7979
IGBThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 6:16 PM EDT | Special Weather Statement | ILM | Robeson | 29 min |
| Jun 7, 6:59 PM EDT | Special Weather Statement | ILM | Darlington | 31 min |
| Jun 7, 7:16 PM EDT | Special Weather Statement | ILM | Darlington | 29 min |
Nearby
Special Weather Statements in South Carolina, 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.