Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Raleigh, NC

May 24, 2011Vance County, Warren County, North Carolina

NWS Raleigh, NC issued this special weather statement at May 24, 2011, 2:15 PM EDT for Vance County, Warren County, North Carolina. It was in force for 30 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
May 24, 2011, 2:15 PM EDT (18:15 UTC)
Expired
May 24, 2011, 2:45 PM EDT
In force
30 min
Issued by
NWS Raleigh, NC

Counties Vance County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 87 km from the middle of the area, began a volume at 18:16 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

Roanoke, VA (KRNK), launched 12:00Z, 6.3 hours before the alert went out and 148 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2011-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 354 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2011-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
354 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
922 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

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 May 24, 2:00 PM EDT, 15 minutes earlier.

Area forecast discussion, May 24, 2:00 PM EDT, 15 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, May 24, 9:18 AM EDT, 4 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
918 AM EDT TUE MAY 24 2011

NCZ073>075-083>086-251000-
STANLY-MONTGOMERY-MOORE-ANSON-RICHMOND-SCOTLAND-HOKE-
918 AM EDT TUE MAY 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

AN ISOLATED THUNDERSTORM OR TWO IS POSSIBLE LATE THIS AFTERNOON
THROUGH THIS EVENING. SMALL HAIL... GUSTY WINDS... VERY FREQUENT
LIGHTNING... AND BRIEF HEAVY RAIN ARE POSSIBLE WITH ANY STORM.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR
SIGNIFICANT WEATHER IMMEDIATELY TO THE NATIONAL
WEATHER SERVICE.

NCZ007>011-021>028-038>043-076>078-088-089-251000-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE-
ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE-
JOHNSTON-WILSON-LEE-HARNETT-WAYNE-CUMBERLAND-SAMPSON-
918 AM EDT TUE MAY 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP AND MOVE EAST ACROSS
NORTHERN AND EASTERN NORTH CAROLINA THIS AFTERNOON THROUGH THIS
EVENING. A FEW OF THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE
HAIL THE SIZE OF QUARTERS OR LARGER... AND DAMAGING WIND GUSTS
OVER 60 MPH. THE GREATEST RISK OF SEVERE STORMS WILL BE FROM 1 PM
THROUGH 8 PM OVER THE NORTHERN PIEDMONT INCLUDING THE TRIAD AND
TRIANGLE REGIONS...AND FROM 4 PM UNTIL MIDNIGHT OVER THE COASTAL
PLAIN AND SANDHILLS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

ISOLATED STRONG STORMS ARE POSSIBLE WEDNESDAY AFTERNOON THROUGH
EARLY EVENING. HOWEVER... HAZARDOUS WEATHER IS NOT EXPECTED AT
THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR
SIGNIFICANT WEATHER IMMEDIATELY TO THE NATIONAL
WEATHER SERVICE.

In the hours before

Local storm report, May 24, 9:49 AM EDT, 4 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
949 AM EDT TUE MAY 24 2011

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

0858 PM     HAIL             4 NW SPEED              36.01N  77.49W
05/23/2011  E1.00 INCH       EDGECOMBE          NC   EMERGENCY MNGR

&&

EVENT NUMBER RAH1100654

JO
Local storm report, May 24, 10:04 AM EDT, 4 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
1004 AM EDT TUE MAY 24 2011

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

0615 PM     HAIL             2 W WELDON              36.43N  77.64W
05/23/2011  M1.00 INCH       HALIFAX            NC   NEWSPAPER

            NEWSPAPER REPORTED QUARTER SIZED HAIL AT THE
            CHOCKEYOTTE BALL FIELDS

&&

EVENT NUMBER RAH1100655

ELLIS
Special weather statement, May 24, 1:18 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
118 PM EDT TUE MAY 24 2011

NCZ007-008-241830-
GRANVILLE-PERSON-
118 PM EDT TUE MAY 24 2011

...STRONG TO SEVERE THUNDERSTORMS APPROACHING PERSON AND NORTHWEST
GRANVILLE COUNTIES FROM THE WEST...

AT 114 PM EDT...DOPPLER RADAR INDICATED STRONG TO SEVERE
THUNDERSTORMS 27 MILES WEST OF CONCORD...OR ABOUT 6 MILES NORTHWEST
OF DANVILLE VIRGINIA...MOVING EAST AT 35 MPH. THESE STORMS WILL
AFFECT PERSON AND NORTHWEST GRANVILLE COUNTIES BETWEEN 2 AND
230 PM EDT.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE HYCO LAKE AND MAYO
RESERVOIR.

HAZARDS INCLUDE...
NICKEL SIZE HAIL.
GUSTY WINDS OF 40 TO 50 MPH.
DEADLY LIGHTNING.

IF THE STORMS MAINTAIN CURRENT INTENSITY...A SEVERE THUNDERSTORM
WARNING WILL BE NECESSARY.

BOATERS ON THE OPEN WATER AND THOSE CAMPING OUTDOORS ARE ESPECIALLY
VULNERABLE TO THE DANGERS OF LIGHTNING. BOATERS SHOULD SEEK SAFE
HARBOR. THOSE CAMPING SHOULD TAKE SHELTER IN A NEARBY BUILDING OR
VEHICLE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR THE NORTH CENTRAL COUNTIES OF NORTH CAROLINA.

&&

LAT...LON 3635 7868 3644 7915 3654 7914 3655 7913
      3655 7870 3655 7869
TIME...MOT...LOC 1714Z 272DEG 31KT 3662 7950

WSS
Special weather statement, May 24, 2:07 PM EDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
207 PM EDT TUE MAY 24 2011

NCZ009-010-241845-
VANCE-WARREN-
207 PM EDT TUE MAY 24 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS WARREN AND VANCE COUNTIES
THROUGH 245 PM EDT...

AT 204 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER
TUNGSTEN...OR ABOUT 12 MILES NORTH OF HENDERSON...MOVING SOUTHEAST AT
40 MPH. THESE STORMS WILL AFFECT VANCE AND WAYNE COUNTIES BETWEEN 2
AND 3 PM.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE BULLOCKSVILLE...KERR
LAKE...DREWRY...MIDDLEBURG...NORLINA...AFTON...WARRENTON...MACON
AND...ARCOLA.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3651 7790 3644 7792 3640 7791 3627 7796
      3621 7801 3624 7813 3625 7813 3625 7816
      3632 7850 3649 7851 3652 7849 3653 7846
      3655 7845 3655 7813
TIME...MOT...LOC 1804Z 295DEG 36KT 3649 7844

KRR
Special weather statement, May 24, 2:15 PM EDT, 0 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>

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 8:02 PM EDTSevere Thunderstorm WarningRAHEdgecombe28 min
May 23, 8:26 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Halifax49 min
May 23, 8:53 PM EDTSpecial Weather StatementRAHEdgecombe37 min
May 23, 9:18 PM EDTSevere Thunderstorm WarningRAHEdgecombe27 min
May 24, 1:18 PM EDTSpecial Weather StatementRAHPerson72 min
May 24, 1:39 PM EDTSevere Thunderstorm WarningRAHGranville, Person34 min
May 24, 2:07 PM EDTSpecial Weather StatementRAHVance, Warren38 min
May 24, 2:46 PM EDTSpecial Weather StatementRAHHalifax, Warren59 min
May 24, 4:36 PM EDTSevere Thunderstorm WarningRAHForsyth39 min
May 24, 5:17 PM EDTSpecial Weather StatementRAHGuilford58 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.