Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Raleigh, NC

April 3, 2017Sampson County, North Carolina

NWS Raleigh, NC issued this special weather statement at Apr 3, 2017, 7:48 PM EDT for Sampson County, North Carolina. It was in force for 27 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 3, 2017, 7:48 PM EDT (23:48 UTC)
Expired
Apr 3, 2017, 8:15 PM EDT
In force
27 min
Issued by
NWS Raleigh, NC

County Sampson County, NC

The radar

The Wilmington radar (KLTX), 88 km from the middle of the area, began a volume at 23:47 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, 11.8 hours before the alert went out and 214 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 3, 7:33 PM EDT, 15 minutes earlier.

Area forecast discussion, Apr 3, 7:33 PM EDT, 15 minutes before
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Hazardous weather outlook, Apr 3, 4:01 PM EDT, 3 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Raleigh NC
401 PM EDT Mon Apr 3 2017

NCZ007>011-021>028-038>043-073>078-083>086-088-089-042015-
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-
401 PM EDT Mon Apr 3 2017

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...This Afternoon and Tonight.

A line of strong to severe storms will cross central NC this evening
between 4pm and 10pm. The primary severe threats will be damaging
winds and isolated tornadoes, especially south of Highway 64.

Additional storms will be possible after midnight, mainly across the
coastal plain, where an additional threat of hail and damaging winds
may exist.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Another strong storm system may bring multiple rounds of severe
thunderstorms to central NC late Wednesday afternoon through the day
on Thursday. The primary severe weather threats will again be
damaging winds and possibly a few tornadoes.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be need this evening.

In the hours before

Local storm report, Apr 3, 5:56 PM EDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
556 PM EDT MON APR 3 2017

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

0524 PM     TSTM WND DMG     4 SW WADESBORO          34.92N 80.12W
04/03/2017                   ANSON              NC   911 CALL CENTER

            TREE AND POWER LINES DOWN AT 109 SOUTH AND
            HORTON ROAD.

&&

KDS
Special weather statement, Apr 3, 6:13 PM EDT, 1 hour 35 minutes before
Special Weather Statement
National Weather Service Raleigh NC
613 PM EDT MON APR 3 2017

NCZ007-024-025-032300-
Durham NC-Person NC-Orange NC-
613 PM EDT MON APR 3 2017

...A line of strong thunderstorms will affect portions of Durham...
Person and Orange Counties Until 700 PM EDT...

At 612 PM EDT, Doppler radar was tracking A line of strong
thunderstorms along a line extending from near Leasburg to 9 miles
northwest of Pittsboro. Movement was east at 45 mph.

Wind gusts up to 50 mph will be possible with these storms.

Heavy rain and minor flooding and deadly cloud to ground lightning
will also be possible with these storms.

Locations impacted include...
Durham, Chapel Hill, Roxboro, Hillsborough, Carrboro, Mebane,
Rougemont, Concord, Lake Michie and Eno River State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter in a nearby building or vehicle. Wind gusts as high as
50 mph are capable of knocking down small or weakened trees and
blowing around trash cans, potted plants, lawn furniture and other
light outdoor objects.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

A severe thunderstorm watch remains in effect until 1000 PM EDT for
central North Carolina.

LAT...LON 3609 7881 3607 7878 3607 7875 3603 7875
      3601 7870 3596 7872 3592 7876 3592 7881
      3587 7883 3586 7908 3588 7925 3591 7926
      3624 7926 3624 7915 3654 7914 3654 7880
TIME...MOT...LOC 2212Z 266DEG 27KT 3645 7913 3584 7927

Ellis
Special weather statement, Apr 3, 6:45 PM EDT, 1 hour 3 minutes before
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Special weather statement, Apr 3, 6:53 PM EDT, 55 minutes before
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Local storm report, Apr 3, 7:25 PM EDT, 23 minutes before
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Special weather statement, Apr 3, 7:48 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 4:35 PM EDTSpecial Weather StatementRAHDavidson, Montgomery, Randolph, Stanly55 min
Apr 3, 4:50 PM EDTSpecial Weather StatementRAHForsyth, Guilford55 min
Apr 3, 4:53 PM EDTSpecial Weather StatementRAHAnson, Richmond52 min
Apr 3, 5:16 PM EDTSevere Thunderstorm WarningRAHAnson, Richmond29 min
Apr 3, 5:23 PM EDTSevere Thunderstorm WarningRAHMontgomery, Moore40 min
Apr 3, 5:32 PM EDTSpecial Weather StatementRAHChatham, Randolph43 min
Apr 3, 5:44 PM EDTSevere Thunderstorm WarningRAHHoke, Moore, Richmond, Scotland46 min
Apr 3, 5:44 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Guilford, Randolph46 min
Apr 3, 5:54 PM EDTSevere Thunderstorm WarningRAHLee, Moore36 min
Apr 3, 6:12 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Hoke48 min
Apr 3, 6:13 PM EDTSpecial Weather StatementRAHDurham, Orange, Person47 min
Apr 3, 6:21 PM EDTSevere Thunderstorm WarningRAHChatham, Harnett, Lee, Moore, Wake39 min
Apr 3, 6:45 PM EDTSpecial Weather StatementRAHCumberland, Sampson60 min
Apr 3, 6:53 PM EDTSpecial Weather StatementRAHHarnett, Johnston, Wake67 min
Apr 3, 7:01 PM EDTSevere Thunderstorm WarningRAHCumberland, Sampson44 min
Apr 3, 7:56 PM EDTSpecial Weather StatementRAHWayne34 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.