Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Raleigh, NC

March 31, 2017Warren County, North Carolina

NWS Raleigh, NC issued this special weather statement at Mar 31, 2017, 1:09 PM EDT for Warren County, North Carolina. It was in force for 36 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
Mar 31, 2017, 1:09 PM EDT (17:09 UTC)
Expired
Mar 31, 2017, 1:45 PM EDT
In force
36 min
Issued by
NWS Raleigh, NC

County Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 85 km from the middle of the area, began a volume at 17:11 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, 5.2 hours before the alert went out and 163 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 2017-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 380 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.1939587897Sfc1 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
380 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

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 Mar 31, 11:05 AM EDT, 2 hours 4 minutes earlier.

Area forecast discussion, Mar 31, 11:05 AM EDT, 2 hours 4 minutes before
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Hazardous weather outlook, Mar 31, 3:47 AM EDT, 9 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service Raleigh NC
347 AM EDT Fri Mar 31 2017

NCZ007>011-021>028-038>043-073>078-083>086-088-089-010800-
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-
347 AM EDT Fri Mar 31 2017

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and Tonight.

Widespread showers and thunderstorms are expected this morning. A
few of these storms could be strong to severe, with a risk of
damaging winds and perhaps an isolated tornado or two. The greatest
threat will be between 4 am and 11 am. Additional scattered storms
are expected this afternoon, and these will be capable of producing
strong straight line wind gusts in excess of 40 mph.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

A powerful storm system will cross the area early next week,
bringing a risk of strong to possibly severe thunderstorms, mainly
Monday evening through early Tuesday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

In the hours before

Special weather statement, Mar 31, 8:10 AM EDT, 4 hours 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Raleigh NC
810 AM EDT FRI MAR 31 2017

NCZ007-008-023>025-040-311330-
Chatham-Durham-Alamance-Person-Granville-Orange-
810 AM EDT FRI MAR 31 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF northern
Chatham...Durham...Alamance...Person...Granville and Orange Counties
Until 930 AM EDT...

At 809 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS along a line extending from NEAR Roxboro
to 7 miles northwest of Carrboro to NEAR Siler City...AND MOVING
northeast AT 40 MPH.

Wind gusts up to 40 mph are expected WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
Durham...Chapel Hill...Burlington...Graham...Oxford...Roxboro...
Hillsborough...Creedmoor...Pittsboro and Siler City.

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. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE
NATIONAL WEATHER SERVICE.

&&

LAT...LON 3654 7848 3646 7851 3605 7856 3607 7875
      3603 7875 3601 7870 3598 7871 3592 7876
      3592 7881 3587 7883 3587 7891 3569 7898
      3567 7954 3598 7954 3624 7924 3624 7915
      3654 7914
TIME...MOT...LOC 1209Z 225DEG 43KT 3634 7901 3598 7920 3577 7943
Special weather statement, Mar 31, 8:16 AM EDT, 4 hours 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Raleigh NC
816 AM EDT FRI MAR 31 2017

NCZ021-022-038-039-311315-
Guilford-Forsyth-Randolph-Davidson-
816 AM EDT FRI MAR 31 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT PORTIONS OF Guilford...
Forsyth...Randolph and Davidson Counties Until 915 AM EDT...

At 816 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS along a line extending from Ayersville
to NEAR Mooresville...AND MOVING east AT 40 MPH.

Wind gusts up to 40 mph WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
Greensboro...Winston-Salem...High Point...Asheboro...Lexington...
Randleman...North Carolina Zoo...Thomasville...Kernersville and
Clemmons.

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. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE
NATIONAL WEATHER SERVICE.

&&

LAT...LON 3611 8050 3614 8044 3626 8045 3624 7954
      3552 7956 3551 8018 3558 8021 3568 8033
      3572 8033 3574 8046 3579 8048 3584 8048
      3583 8046 3584 8039 3588 8042 3589 8037
      3601 8042 3606 8046 3604 8049 3608 8052
TIME...MOT...LOC 1216Z 266DEG 35KT 3650 8002 3563 8086
Special weather statement, Mar 31, 8:28 AM EDT, 4 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
828 AM EDT Fri Mar 31 2017

NCZ009>011-026>028-041>043-077-078-085-086-088-089-311430-
VANCE-WARREN-HALIFAX-FRANKLIN-NASH-EDGECOMBE-WAKE-JOHNSTON-WILSON-
HARNETT-WAYNE-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
INCLUDING THE CITIES OF DABNEY, HENDERSON, NORLINA, WISE, AFTON,
WARRENTON, LAKE GASTON, ROANOKE RAPIDS, PILOT, INGLESIDE,
LOUISBURG, FRANKLINTON, NASHVILLE, AVENTON, RED OAK, SHARPSBURG,
SPRING HOPE, ROCKY MOUNT, RALEIGH, CARY, SMITHFIELD, CLAYTON,
FLOWERS, SELMA, BENSON, COATS CROSSROADS, NEW HOPE, WILSON, DUNN,
ANDERSON CREEK, TIMBERLAKE, DUNCAN, ERWIN, ANGIER, LILLINGTON,
GOLDSBORO, LAUREL HILL, LAURINBURG, ANTIOCH, ASHLEY HEIGHTS,
RAEFORD, ROCKFISH, SILVER CITY, FAYETTEVILLE, FORT BRAGG,
AND CLINTON
828 AM EDT Fri Mar 31 2017

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT MUCH OF THE
EASTERN TRIANGLE REGION, THE COASTAL PLAIN, AND THE I-95 CORRIDOR
THROUGH AT LEAST 9:30 AM...

At 825 AM EDT, NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS OVER MUCH OF THE
REGION. LOCATIONS AFFECTED MAY INCLUDE WARRENTON, ROCKY MOUNT,
WILSON, CLAYTON, GOLDSBORO, DUNN, FAYETTEVILLE, CLINTON, RAEFORD,
LAURINBURG, AND SURROUNDING AREAS.

Wind gusts up to 50 mph WILL BE POSSIBLE WITH THESE
STORMS, WHICH MAY RESULT IN DOWNED TREE LIMBS AND BLOWING AROUND
TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT
OUTDOOR OBJECTS. SCATTERED POWER OUTAGES WILL BE POSSIBLE. SEEK
SHELTER IN A NEARBY BUILDING OR VEHICLE.

LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND
USE EXTRA CAUTION TO AVOID HYDROPLANING.

THESE STORMS MAY INTENSIFY, SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS
FROM THE NATIONAL WEATHER SERVICE.
Local storm report, Mar 31, 11:01 AM EDT, 2 hours 8 minutes before
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Special weather statement, Mar 31, 12:22 PM EDT, 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Raleigh NC
1222 PM EDT FRI MAR 31 2017

NCZ008>010-026-311645-
Franklin-Vance-Warren-Granville-
1222 PM EDT FRI MAR 31 2017

...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF northwestern
Franklin...southern Vance...southwestern Warren and southeastern
Granville Counties Until 1245 PM EDT...

At 1221 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR Kittrell...or 8 miles southeast of Oxford...
MOVING east AT 40 MPH.

Wind gusts up to 50 mph WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
Henderson...Oxford...Kittrell...Middleburg...Ingleside...Gillburg and
South Henderson.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM. DO NOT DRIVE
YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3612 7859 3628 7862 3644 7829 3617 7818
TIME...MOT...LOC 1621Z 247DEG 33KT 3620 7853
Special weather statement, Mar 31, 1:09 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Raleigh NC
109 PM EDT FRI MAR 31 2017

NCZ010-311745-
Warren-
109 PM EDT FRI MAR 31 2017

...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF central Warren
County Until 145 PM EDT...

At 108 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR Warrenton...MOVING northeast AT 25 MPH.

Wind gusts up to 50 mph WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
Warrenton...Macon...Afton and Lake Gaston.

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.

&&

LAT...LON 3654 7802 3634 7793 3632 7794 3625 7820
      3626 7824 3633 7828 3634 7828
TIME...MOT...LOC 1708Z 245DEG 22KT 3633 7819

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 6:02 AM EDTSpecial Weather StatementRAHChatham, Lee, Moore, Randolph58 min
Mar 31, 7:30 AM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Hoke45 min
Mar 31, 8:10 AM EDTSpecial Weather StatementRAHAlamance, Chatham, Durham, Granville, Orange, Person80 min
Mar 31, 8:16 AM EDTSpecial Weather StatementRAHDavidson, Forsyth, Guilford, Randolph59 min
Mar 31, 9:55 AM EDTSevere Thunderstorm WarningRAHEdgecombe, Sampson, Wayne, Wilson65 min
Mar 31, 12:22 PM EDTSpecial Weather StatementRAHVance23 min
Mar 31, 2:29 PM EDTSpecial Weather StatementRAHBladen16 min
Mar 31, 2:33 PM EDTSpecial Weather StatementRAHVance42 min
Mar 31, 3:20 PM EDTSpecial Weather StatementRAHWarren40 min
Mar 31, 4:05 PM EDTSpecial Weather StatementRAHGranville, Person55 min
Mar 31, 4:28 PM EDTSpecial Weather StatementRAHHalifax17 min
Mar 31, 4:48 PM EDTSpecial Weather StatementRAHWarren42 min
Mar 31, 4:51 PM EDTSevere Thunderstorm WarningRAHVance, Warren39 min
Mar 31, 5:19 PM EDTSpecial Weather StatementRAHHalifax26 min
Mar 31, 5:25 PM EDTSevere Thunderstorm WarningRAHHalifax20 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.