Alert archive / North Carolina / Special Weather Statements in 2011
Special Weather Statement, NWS Raleigh, NC
NWS Raleigh, NC issued this special weather statement at Apr 9, 2011, 5:11 PM EDT for Forsyth County, North Carolina. It was in force for 34 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
- Apr 9, 2011, 5:11 PM EDT (21:11 UTC)
- Expired
- Apr 9, 2011, 5:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Raleigh, NC
County Forsyth County, NC
The radar
The Roanoke radar (KFCX), 98 km from the middle of the area, began a volume at 21:12 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, 9.2 hours before the alert went out and 25 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 256 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!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 Apr 9, 3:38 PM EDT, 1 hour 33 minutes earlier.
Area forecast discussion, Apr 9, 3:38 PM EDT, 1 hour 33 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, Apr 9, 2:57 PM EDT, 2 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 257 PM EDT SAT APR 9 2011 NCZ074-075-084>086-101100- MONTGOMERY-MOORE-RICHMOND-SCOTLAND-HOKE- 257 PM EDT SAT APR 9 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE SOUTHEASTWARD ACROSS THE SOUTHERN NC PIEDMONT AND WESTERN SANDHILLS LATE THIS AFTERNOON THROUGH THE EARLY NIGHTTIME HOURS. A FEW OF THESE STORMS MAY BECOME STRONG TO SEVERE...WITH A PRIMARY THREAT OF HAIL AS LARGE AS QUARTERS. ISOLATED DAMAGING WIND GUSTS TO AROUND 60 MPH WILL ALSO BE POSSIBLE. THE SEVERE WEATHER RISK WILL BE HIGHEST BETWEEN 5 PM AND 1 AM. PEOPLE ACROSS THE AREA ARE ENCOURAGED TO KEEP UP WITH THE LATEST WEATHER INFORMATION LATE TODAY AND TONIGHT THROUGH NOAA WEATHER RADIO... LOCAL MEDIA... OR BY VISITING OUR WEBSITE AT WEATHER.GOV/RALEIGH. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COLD FRONT WILL SWEEP EAST ACROSS CENTRAL NORTH CAROLINA LATE MONDAY NIGHT THROUGH DAYBREAK TUESDAY... BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS. A FEW OF THESE STORMS MAY PRODUCE STRONG WIND GUSTS IN EXCESS OF 45 MPH. OTHERWISE... HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. NCZ007>011-021>028-038>043-076>078-088-089-101100- PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE- ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE- JOHNSTON-WILSON-LEE-HARNETT-WAYNE-CUMBERLAND-SAMPSON- 257 PM EDT SAT APR 9 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP AND MOVE SOUTHEASTWARD ACROSS CENTRAL NC LATE THIS AFTERNOON THROUGH THE EARLY NIGHTTIME HOURS. A FEW OF THESE STORMS MAY BECOME STRONG TO SEVERE...WITH A PRIMARY THREAT OF HAIL AS LARGE AS QUARTERS. THE SEVERE WEATHER RISK WILL BE HIGHEST BETWEEN 5 PM AND 11 PM OVER THE NORTHWEST PIEDMONT...INCLUDING THE TRIAD...AND BETWEEN 7 PM AND 1 AM ACROSS THE REMAINDER OF CENTRAL NC. PEOPLE ACROSS THE AREA ARE ENCOURAGED TO KEEP UP WITH THE LATEST WEATHER INFORMATION LATE TODAY AND TONIGHT THROUGH NOAA WEATHER RADIO... LOCAL MEDIA... OR BY VISITING OUR WEBSITE AT WEATHER.GOV/RALEIGH. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COLD FRONT WILL SWEEP EAST ACROSS CENTRAL NORTH CAROLINA LATE MONDAY NIGHT THROUGH DAYBREAK TUESDAY... BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS. A FEW OF THESE STORMS MAY PRODUCE STRONG WIND GUSTS IN EXCESS OF 45 MPH. OTHERWISE... HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. NCZ073-083-101100- STANLY-ANSON- 257 PM EDT SAT APR 9 2011 ...SEVERE THUNDERSTORM WATCH 114 IN EFFECT UNTIL 9 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL 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. SEVERE THUNDERSTORM WATCH. SCATTERED THUNDERSTORMS ARE EXPECTED TO MOVE SOUTHEASTWARD ACROSS THE SOUTHERN NC PIEDMONT AND WESTERN SANDHILLS LATE THIS AFTERNOON AND EVENING. A FEW OF THESE STORMS MAY BECOME STRONG TO SEVERE...WITH A PRIMARY THREAT OF HAIL AS LARGE AS QUARTERS. ISOLATED DAMAGING WIND GUSTS TO AROUND 60 MPH WILL ALSO BE POSSIBLE. WHILE THE SEVERE WEATHER RISK WILL BE HIGHEST THROUGH 9 PM...SOME STRONG TO SEVERE THUNDERSTORMS WITH UP TO QUARTER SIZED HAIL WILL REMAIN POSSIBLE THROUGH AROUND MIDNIGHT. PEOPLE ACROSS THE AREA ARE ENCOURAGED TO KEEP UP WITH THE LATEST WEATHER INFORMATION LATE TODAY AND TONIGHT THROUGH NOAA WEATHER RADIO... LOCAL MEDIA... OR BY VISITING OUR WEBSITE AT WEATHER.GOV/RALEIGH. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COLD FRONT WILL SWEEP EAST ACROSS CENTRAL NORTH CAROLINA LATE MONDAY NIGHT THROUGH DAYBREAK TUESDAY... BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS. A FEW OF THESE STORMS MAY PRODUCE STRONG WIND GUSTS IN EXCESS OF 45 MPH. OTHERWISE... HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.
In the hours before
Local storm report, Apr 9, 12:54 PM EDT, 4 hours 17 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, Apr 9, 4:44 PM EDT, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
444 PM EDT SAT APR 9 2011
NCZ021-022-092145-
FORSYTH-GUILFORD-
444 PM EDT SAT APR 9 2011
...A STRONG THUNDERSTORM WILL MOVE ACROSS FORSYTH AND NORTHWESTERN
GUILFORD COUNTIES THROUGH 545 PM EDT...
AT 442 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR
EAST BEND IN YADKIN COUNTY MOVING EAST AT 50 MPH. THIS STORM WILL
MOVE INTO FORSYTH COUNTY BETWEEN 445 AND 500 PM. THE CURRENT
MOVEMENT OF THE STORM WILL BRING IT OVER WINSTON-SALEM AROUND 500
PM.
OTHER LOCATIONS AFFECTED BY THIS STORM INCLUDE...PFAFFTOWN...RURAL
HALL...WALKERTOWN......KERNERSVILLE...COLFAX...SUMMERFIELD...PTI
AIRPORT.
HAZARDS INCLUDE...
PEA SIZED HAIL.
DEADLY CLOUD TO GROUND LIGHTNING.
BRIEF VERY HEAVY RAIN.
IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.
&&
LAT...LON 3612 8048 3612 8045 3626 8045 3624 7954
3623 7954 3602 7989 3607 8052
TIME...MOT...LOC 2041Z 276DEG 42KT 3618 8047
BADGETTSpecial weather statement, Apr 9, 5:11 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
511 PM EDT SAT APR 9 2011
NCZ021-022-092145-
FORSYTH-GUILFORD-
511 PM EDT SAT APR 9 2011
...A STRONG THUNDERSTORM WILL MOVE ACROSS NORTHEASTERN FORSYTH AND
NORTHWESTERN GUILFORD COUNTIES THROUGH 545 PM EDT...
AT 510 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR
OVER STANLEYVILLE OR ABOUT 6 MILES NORTH OF WINSTON-SALEM... MOVING
EAST AT 40 MPH. THE CURRENT MOVEMENT OF THE STORM WOULD BRING IT
NEAR THE PTI AIRPORT AROUND 525 PM.
OTHER LOCATIONS AFFECTED BY THIS STORM
INCLUDE...WALKERTOWN......KERNERSVILLE...COLFAX...SUMMERFIELD.
HAZARDS INCLUDE...
PEA SIZED HAIL.
DEADLY CLOUD TO GROUND LIGHTNING.
BRIEF VERY HEAVY RAIN.
IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING.
&&
LAT...LON 3612 8048 3612 8045 3626 8045 3624 7954
3623 7954 3602 7989 3607 8052
TIME...MOT...LOC 2041Z 275DEG 34KT 3618 8047
BADGETTThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 10:02 PM EDT | Special Weather Statement | RAH | Alamance, Orange | 58 min |
| Apr 8, 10:32 PM EDT | Special Weather Statement | RAH | Orange, Wake | 58 min |
| Apr 8, 11:15 PM EDT | Special Weather Statement | RAH | Johnston, Wake, Wayne, Wilson | 75 min |
| Apr 9, 12:01 AM EDT | Special Weather Statement | RAH | Alamance, Durham, Forsyth, Guilford, Orange, Person | 59 min |
| Apr 9, 12:19 AM EDT | Severe Thunderstorm Warning | RAH | Guilford | 41 min |
| Apr 9, 12:49 AM EDT | Special Weather Statement | RAH | Chatham | 56 min |
| Apr 9, 1:14 AM EDT | Special Weather Statement | RAH | Randolph | 31 min |
| Apr 9, 1:25 AM EDT | Special Weather Statement | RAH | Forsyth | 35 min |
| Apr 9, 1:35 AM EDT | Special Weather Statement | RAH | Harnett | 40 min |
| Apr 9, 1:55 AM EDT | Severe Thunderstorm Warning | RAH | Davidson, Forsyth | 35 min |
| Apr 9, 2:29 AM EDT | Severe Thunderstorm Warning | RAH | Davidson, Randolph | 36 min |
| Apr 9, 2:59 AM EDT | Severe Thunderstorm Warning | RAH | Montgomery, Moore, Randolph | 46 min |
| Apr 9, 4:44 PM EDT | Special Weather Statement | RAH | Forsyth | 61 min |
| Apr 9, 6:35 PM EDT | Special Weather Statement | RAH | Forsyth, Guilford | 55 min |
| Apr 9, 6:59 PM EDT | Special Weather Statement | RAH | Forsyth, Guilford | 31 min |
| Apr 9, 7:20 PM EDT | Severe Thunderstorm Warning | RAH | Anson, Stanly | 40 min |
| Apr 9, 7:21 PM EDT | Special Weather Statement | RAH | Alamance, Chatham, Durham, Franklin, Granville, Orange and 4 more | 54 min |
Nearby
Special Weather Statements in North Carolina, 2011Every special weather statement in 2011
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.