Alert archive / North Carolina / Special Weather Statements in 2020
Special Weather Statement, NWS Raleigh, NC
NWS Raleigh, NC issued this special weather statement at Aug 9, 2020, 1:32 PM EDT for Chatham County, North Carolina. It was in force for 43 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
- Aug 9, 2020, 1:32 PM EDT (17:32 UTC)
- Expired
- Aug 9, 2020, 2:15 PM EDT
- In force
- 43 min
- Issued by
- NWS Raleigh, NC
County Chatham County, NC
The radar
The Raleigh/Durham radar (KRAX), 81 km from the middle of the area, began a volume at 17:35 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, 5.5 hours before the alert went out and 58 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
- 733 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 960 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -28 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 Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Aug 9, 11:53 AM EDT, 1 hour 39 minutes earlier.
Area forecast discussion, Aug 9, 11:53 AM EDT, 1 hour 39 minutes before
<!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.
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</html>Hazardous weather outlook, Aug 9, 8:06 AM EDT, 5 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Raleigh NC 806 AM EDT Sun Aug 9 2020 NCZ007>011-021>028-038>043-073>078-083>086-088-089-101215- Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance- Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake- Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson- Richmond-Scotland-Hoke-Cumberland-Sampson- 806 AM EDT Sun Aug 9 2020 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 9, 1:32 PM EDT, 0 minutes before
Special Weather Statement National Weather Service Raleigh NC 132 PM EDT Sun Aug 9 2020 NCZ023-040-091815- Chatham NC-Alamance NC- 132 PM EDT Sun Aug 9 2020 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN ALAMANCE AND NORTHWESTERN CHATHAM COUNTIES UNTIL 215 PM EDT... At 131 PM EDT, Doppler radar was tracking a strong thunderstorm near Siler City, moving east at 15 mph. Wind gusts up to 40 mph will be possible with this storm. Heavy rain and minor flooding will also be possible with this storm. Locations impacted include... Siler City, Staley, Sutphin, Saxapahaw and Snow Camp. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter in a nearby building or vehicle. Wind gusts as high as 40 mph are capable of knocking down tree limbs and blowing around trash cans, potted plants, lawn furniture and other light outdoor objects. Locally heavy rain will quickly reduce visibility and result in ponding of water on roadways, standing water in low lying areas, and minor flooding of creeks, streams, and areas of poor drainage. Drivers are urged to slow down and use extra caution to avoid hydroplaning, especially in urban areas where prolonged heavy rain can quickly lead to flooding. && LAT...LON 3569 7925 3568 7955 3588 7954 3596 7929 TIME...MOT...LOC 1731Z 255DEG 15KT 3577 7948 23
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:16 PM EDT | Special Weather Statement | RAH | Wilson | 44 min |
| Aug 8, 9:08 PM EDT | Special Weather Statement | RAH | Wilson | 52 min |
| Aug 8, 10:16 PM EDT | Special Weather Statement | RAH | Wayne | 59 min |
| Aug 8, 10:42 PM EDT | Severe Thunderstorm Warning | RAH | Sampson, Wayne | 63 min |
| Aug 8, 10:52 PM EDT | Areal Flood Advisory | RAH | Wayne | 2 hr |
| Aug 8, 11:48 PM EDT | Special Weather Statement | RAH | Sampson | 42 min |
| Aug 9, 1:29 AM EDT | Special Weather Statement | RAH | Moore | 46 min |
| Aug 9, 1:38 AM EDT | Areal Flood Advisory | RAH | Montgomery, Moore | 3 hr |
| Aug 9, 2:24 AM EDT | Special Weather Statement | RAH | Moore | 51 min |
| Aug 9, 3:32 AM EDT | Special Weather Statement | RAH | Hoke | 43 min |
| Aug 9, 3:34 AM EDT | Special Weather Statement | RAH | Richmond | 41 min |
| Aug 9, 4:26 AM EDT | Areal Flood Advisory | RAH | Cumberland, Harnett, Hoke, Moore | 81 min |
| Aug 9, 4:29 AM EDT | Special Weather Statement | RAH | Hoke | 46 min |
| Aug 9, 3:17 PM EDT | Special Weather Statement | RAH | Harnett, Lee | 58 min |
| Aug 9, 3:32 PM EDT | Special Weather Statement | RAH | Cumberland | 58 min |
| Aug 9, 4:16 PM EDT | Special Weather Statement | RAH | Wake | 44 min |
| Aug 9, 4:18 PM EDT | Special Weather Statement | RAH | Sampson | 42 min |
| Aug 9, 4:20 PM EDT | Special Weather Statement | RAH | Harnett, Johnston | 40 min |
| Aug 9, 4:48 PM EDT | Areal Flood Advisory | RAH | Wake | 57 min |
| Aug 9, 5:33 PM EDT | Special Weather Statement | RAH | Franklin, Nash | 42 min |
| Aug 9, 6:05 PM EDT | Special Weather Statement | RAH | Wilson | 55 min |
Nearby
Special Weather Statements in North Carolina, 2020Every special weather statement in 2020
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.