Alert archive / North Carolina / River Flood Warnings in 2020

River Flood Warning 43, NWS Raleigh, NC

August 3, 2020Johnston County, North Carolina

NWS Raleigh, NC issued this river flood warning at Aug 3, 2020, 10:50 AM EDT for Johnston County, North Carolina. It took effect at Aug 4, 2020, 2:00 PM EDT. It was in force for 59 hr.

The area

The counties it named.

The facts

Issued: Aug 3, 2020, 10:50 AM EDT (14:50 UTC)
In effect from: Aug 4, 2020, 2:00 PM EDT
Expired: Aug 7, 2020, 12:56 AM EDT
In force: 59 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: Moderate

County Johnston County, NC

The radar

The Raleigh/Durham radar (KRAX), 20 km from the middle of the area, began a volume at 14:49 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 river

Written for the forecast point Neuse River near Clayton (CLYN7). The gauge peaked at 10.08 ft at Aug 4, 2020, 7:00 PM EDT.

Action stage: 8 ft
Minor stage: 9 ft
Moderate stage: 13 ft
Major stage: 16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02087500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Aug 3, 10:50 AM EDT, 0 minutes earlier.

Area forecast discussion, Aug 3, 10:50 AM EDT, 0 minutes before

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Hazardous weather outlook, Aug 3, 8:00 AM EDT, 2 hours 50 minutes before

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In the hours before

Special weather statement, Aug 3, 10:48 AM EDT, 2 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

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 12:09 AM EDT	Special Weather Statement	RAH	Forsyth	66 min
Aug 3, 1:13 AM EDT	Areal Flood Advisory	RAH	Forsyth	3 hr
Aug 3, 1:22 AM EDT	Special Weather Statement	RAH	Forsyth	53 min
Aug 3, 3:04 AM EDT	Special Weather Statement	RAH	Forsyth	56 min
Aug 3, 10:48 AM EDT	Special Weather Statement	RAH	Anson, Chatham, Davidson, Montgomery, Randolph, Stanly	57 min
Aug 3, 10:50 AM EDT	River Flood Warning	RAH	Johnston	60 hr
Aug 3, 2:08 PM EDT	Special Weather Statement	RAH	Harnett	67 min
Aug 3, 2:58 PM EDT	Special Weather Statement	RAH	Johnston	62 min
Aug 3, 4:07 PM EDT	Special Weather Statement	RAH	Johnston, Wayne	53 min
Aug 3, 4:18 PM EDT	Special Weather Statement	RAH	Alamance, Durham, Orange, Person	57 min
Aug 3, 5:00 PM EDT	Special Weather Statement	RAH	Wake	60 min
Aug 3, 5:56 PM EDT	Special Weather Statement	RAH	Anson	64 min
Aug 3, 6:10 PM EDT	Special Weather Statement	RAH	Granville, Vance	65 min
Aug 3, 6:14 PM EDT	Special Weather Statement	RAH	Durham, Orange, Person	61 min

Nearby

River Flood Warnings in North Carolina, 2020 Every river flood warning 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.