Alert archive / North Carolina / Special Weather Statements in 2017
Special Weather Statement, NWS Raleigh, NC
NWS Raleigh, NC issued this special weather statement at Jul 28, 2017, 3:01 PM EDT for Halifax County, North Carolina. It was in force for 44 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
- Jul 28, 2017, 3:01 PM EDT (19:01 UTC)
- Expired
- Jul 28, 2017, 3:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Raleigh, NC
County Halifax County, NC
The radar
The Norfolk radar (KAKQ), 88 km from the middle of the area, began a volume at 19:01 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
Newport, NC (KMHX), launched 12:00Z, 7.0 hours before the alert went out and 176 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
- 546 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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 Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Jul 28, 1:20 PM EDT, 1 hour 41 minutes earlier.
Area forecast discussion, Jul 28, 1:20 PM EDT, 1 hour 41 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 28, 2:07 PM EDT, 54 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Raleigh NC 207 PM EDT Fri Jul 28 2017 NCZ021>024-038>040-042-073>078-083>086-088-089-290930- Forsyth-Guilford-Alamance-Orange-Davidson-Randolph-Chatham-Johnston- Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-Richmond-Scotland- Hoke-Cumberland-Sampson- 207 PM EDT Fri Jul 28 2017 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...This Afternoon and Tonight. An unseasonably strong cold front will move into the region tonight through early Saturday. Scattered thunderstorms are expected to develop ahead of the front, some of which may be severe. The primary severe weather threat will be damaging wind gusts. The severe weather threat appears greatest between 5 PM and 11 PM. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ007>011-025>028-041-043-290930- Person-Granville-Vance-Warren-Halifax-Durham-Franklin-Nash-Edgecombe- Wake-Wilson- 207 PM EDT Fri Jul 28 2017 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...This Afternoon and Tonight. An unseasonably strong cold front will move into the region tonight through early Saturday. Scattered thunderstorms will develop ahead of the front. A few of the storms could become severe, with damaging wind gusts the primary threat. An isolated weak tornado cannot be ruled out. The severe weather threat appears to be best between 5 PM and 11 PM. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. 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, Jul 28, 1:47 PM EDT, 1 hour 14 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Jul 28, 3:01 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Raleigh NC
301 PM EDT FRI JUL 28 2017
NCZ011-281945-
Halifax NC-
301 PM EDT FRI JUL 28 2017
...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL HALIFAX COUNTY
UNTIL 345 PM EDT...
At 258 PM EDT, Doppler radar was tracking a strong thunderstorm
about 5 miles southeast of Halifax, near Rich Square, moving east at
20 mph.
Wind gusts up to 40 mph and frequent lightning will be possible with
this storm. People outdoors along the Roanoke river should be alert
for this storm and seek shelter indoors until it has passed.
Locations impacted include...
Halifax and Tillery.
LAT...LON 3623 7738 3620 7753 3634 7762 3635 7758
3634 7759 3630 7755 3631 7750 3632 7747
3632 7744 3629 7741 3626 7741 3625 7738
TIME...MOT...LOC 1858Z 253DEG 18KT 3634 7733
13The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 8:34 PM EDT | Special Weather Statement | RAH | Alamance, Durham, Franklin, Orange | 56 min |
| Jul 28, 1:47 PM EDT | Special Weather Statement | RAH | Wake | 43 min |
| Jul 28, 3:52 PM EDT | Special Weather Statement | RAH | Warren | 53 min |
| Jul 28, 3:54 PM EDT | Special Weather Statement | RAH | Franklin | 66 min |
| Jul 28, 4:16 PM EDT | Special Weather Statement | RAH | Halifax | 59 min |
| Jul 28, 4:20 PM EDT | Areal Flood Advisory | RAH | Halifax | 115 min |
| Jul 28, 5:19 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth | 41 min |
| Jul 28, 5:25 PM EDT | Special Weather Statement | RAH | Wake | 65 min |
| Jul 28, 5:26 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Stanly | 53 min |
| Jul 28, 5:47 PM EDT | Severe Thunderstorm Warning | RAH | Davidson, Randolph | 30 min |
| Jul 28, 6:07 PM EDT | Special Weather Statement | RAH | Davidson, Forsyth | 53 min |
| Jul 28, 6:08 PM EDT | Special Weather Statement | RAH | Franklin | 67 min |
| Jul 28, 6:21 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Wake | 44 min |
| Jul 28, 6:59 PM EDT | Special Weather Statement | RAH | Franklin, Vance, Warren | 61 min |
| Jul 28, 7:07 PM EDT | Areal Flood Advisory | RAH | Wake | 3 hr |
| Jul 28, 7:36 PM EDT | Special Weather Statement | RAH | Halifax | 54 min |
Nearby
Special Weather Statements in North 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.