Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Raleigh, NC

August 3, 2020Harnett County, North Carolina

NWS Raleigh, NC issued this special weather statement at Aug 3, 2020, 2:08 PM EDT for Harnett County, North Carolina. It was in force for 67 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
Aug 3, 2020, 2:08 PM EDT (18:08 UTC)
Expired
Aug 3, 2020, 3:15 PM EDT
In force
67 min
Issued by
NWS Raleigh, NC

County Harnett County, NC

The radar

The Raleigh/Durham radar (KRAX), 48 km from the middle of the area, began a volume at 18:12 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, 6.1 hours before the alert went out and 146 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 2020-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 478 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 2020-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.193958Sfc1 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
478 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Aug 3, 11:11 AM EDT, 2 hours 57 minutes earlier.

Area forecast discussion, Aug 3, 11:11 AM EDT, 2 hours 57 minutes before
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<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 3, 11:13 AM EDT, 2 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Raleigh NC
1113 AM EDT Mon Aug 3 2020

NCZ007>009-021>025-038>040-073>076-083>085-041200-
Person-Granville-Vance-Forsyth-Guilford-Alamance-Orange-Durham-
Davidson-Randolph-Chatham-Stanly-Montgomery-Moore-Lee-Anson-Richmond-
Scotland-
1113 AM EDT Mon Aug 3 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON...

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.

   Flash Flood Watch.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ010-011-026>028-041>043-077-078-086-088-089-041200-
Warren-Halifax-Franklin-Nash-Edgecombe-Wake-Johnston-Wilson-Harnett-
Wayne-Hoke-Cumberland-Sampson-
1113 AM EDT Mon Aug 3 2020

...TROPICAL STORM WARNING IN EFFECT...
...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON...

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.

   Tropical Storm Warning.
   Flash Flood Watch.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tropical Storm Warning.
   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 3, 10:48 AM EDT, 3 hours 20 minutes before
Special Weather Statement
National Weather Service Raleigh NC
1048 AM EDT Mon Aug 3 2020

NCZ023-038>040-073>075-083-084-031545-
Stanly NC-Anson NC-Richmond NC-Chatham NC-Alamance NC-Randolph NC-
Davidson NC-Moore NC-Montgomery NC-
1048 AM EDT Mon Aug 3 2020

...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT SOUTHERN
ALAMANCE...NORTHWESTERN MOORE...SOUTHEASTERN DAVIDSON...ANSON...
MONTGOMERY...NORTHWESTERN RICHMOND...RANDOLPH...STANLY AND CHATHAM
COUNTIES UNTIL 1145 AM EDT...

At 1044 AM EDT, Doppler radar was tracking an area of showers and
strong thunderstorms along a line extending from near Pittsboro to
near Seagrove to near Wadesboro. Movement was northwest at 20 mph.

Radar estimated rainfall is near one inch per hour with the storms.
Heavy rain and minor flooding will be possible with these storms.

Locations impacted include...
Asheboro, Lexington, Albemarle, Wadesboro, Randleman, Pittsboro,
Troy, Siler City, Badin Lake and North Carolina Zoo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning, especially in urban areas where prolonged heavy rain
can quickly lead to flooding.

&&

LAT...LON 3550 8030 3551 8018 3567 8031 3580 8027
      3591 7974 3590 7954 3595 7954 3600 7928
      3588 7926 3587 7921 3569 7910 3553 7928
      3556 7929 3554 7932 3547 7936 3481 8011
      3482 8032 3519 8028 3518 8048 3519 8048
TIME...MOT...LOC 1444Z 132DEG 16KT 3578 7922 3547 7983 3488 8026

22
Special weather statement, Aug 3, 2:08 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Raleigh NC
208 PM EDT Mon Aug 3 2020

NCZ077-088-089-031915-
Sampson NC-Harnett NC-Cumberland NC-
208 PM EDT Mon Aug 3 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN SAMPSON...HARNETT
AND NORTHEASTERN CUMBERLAND COUNTIES UNTIL 315 PM EDT...

At 207 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles southeast of Godwin, or 16 miles northwest of Clinton, moving
northwest at 35 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Lillington, Dunn, Angier, Godwin, Erwin, Eastover, Coats, Stedman,
Wade and Falcon.

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 3501 7868 3507 7877 3544 7905 3558 7891
      3552 7870 3543 7861 3536 7856 3534 7853
      3531 7854 3529 7852 3515 7845 3507 7846
      3500 7857
TIME...MOT...LOC 1807Z 154DEG 30KT 3510 7860

26

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 12:09 AM EDTSpecial Weather StatementRAHForsyth66 min
Aug 3, 1:13 AM EDTAreal Flood AdvisoryRAHForsyth3 hr
Aug 3, 1:22 AM EDTSpecial Weather StatementRAHForsyth53 min
Aug 3, 3:04 AM EDTSpecial Weather StatementRAHForsyth56 min
Aug 3, 10:48 AM EDTSpecial Weather StatementRAHAnson, Chatham, Davidson, Montgomery, Randolph, Stanly57 min
Aug 3, 10:50 AM EDTRiver Flood WarningRAHJohnston4 days
Aug 3, 10:50 AM EDTRiver Flood WarningRAHJohnston60 hr
Aug 3, 2:58 PM EDTSpecial Weather StatementRAHJohnston62 min
Aug 3, 4:07 PM EDTSpecial Weather StatementRAHJohnston, Wayne53 min
Aug 3, 4:18 PM EDTSpecial Weather StatementRAHAlamance, Durham, Orange, Person57 min
Aug 3, 5:00 PM EDTSpecial Weather StatementRAHWake60 min
Aug 3, 5:56 PM EDTSpecial Weather StatementRAHAnson64 min
Aug 3, 6:10 PM EDTSpecial Weather StatementRAHGranville, Vance65 min
Aug 3, 6:14 PM EDTSpecial Weather StatementRAHDurham, Orange, Person61 min

Nearby

Special Weather Statements in North Carolina, 2020Every special weather statement in 2020

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.