Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Raleigh, NC

May 29, 2020Johnston County, North Carolina

NWS Raleigh, NC issued this special weather statement at May 29, 2020, 4:01 PM EDT for Johnston County, North Carolina. It was in force for 59 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 29, 2020, 4:01 PM EDT (20:01 UTC)
Expired: May 29, 2020, 5:00 PM EDT
In force: 59 min
Issued by: NWS Raleigh, NC

County Johnston County, NC

The radar

The Raleigh/Durham radar (KRAX), 21 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 154 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 219 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 843 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 19 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 May 29, 4:00 PM EDT, 1 minute earlier.

Area forecast discussion, May 29, 4:00 PM EDT, 1 minute before

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Hazardous weather outlook, May 29, 4:09 AM EDT, 11 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Raleigh NC
409 AM EDT Fri May 29 2020

NCZ007>011-021>028-038>043-073>078-083>086-088-089-300815-
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-
409 AM EDT Fri May 29 2020

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

Showers and thunderstorms may again produce locally heavy rainfall,
mainly this afternoon and evening. Urban and small stream flooding
may occur. In addition... a few of the thunderstorms may become
strong to locally severe, with isolated damaging wind gusts the main
threat.

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

There is a marginal risk of severe thunderstorms Saturday afternoon
and early evening over the eastern sections of North Carolina. The
main threat is damaging wind gusts to near 60 mph.

32

In the hours before

Local storm report, May 29, 2:04 PM EDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
204 PM EDT FRI MAY 29 2020

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

1245 PM     FLASH FLOOD      5 SW TURKEY             34.95N 78.25W
05/29/2020                   SAMPSON            NC   911 CALL CENTER

            HIGH WATER AND FLOODED ROADWAYS NEAR
            CLINTON, NC.

&&

AS

Special weather statement, May 29, 2:19 PM EDT, 1 hour 42 minutes before

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Special weather statement, May 29, 2:58 PM EDT, 1 hour 3 minutes before

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Special weather statement, May 29, 3:25 PM EDT, 36 minutes before

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Special weather statement, May 29, 3:43 PM EDT, 18 minutes before

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Special weather statement, May 29, 4:01 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 9:14 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Sampson	3 hr
May 29, 12:18 AM EDT	Areal Flood Warning	RAH	Sampson	9 hr
May 29, 4:37 AM EDT	Special Weather Statement	RAH	Chatham, Durham	53 min
May 29, 5:34 AM EDT	Special Weather Statement	RAH	Durham, Franklin, Granville, Vance, Wake	56 min
May 29, 6:03 AM EDT	Special Weather Statement	RAH	Harnett, Hoke, Scotland	72 min
May 29, 6:30 AM EDT	Special Weather Statement	RAH	Franklin, Wake	60 min
May 29, 7:22 AM EDT	Special Weather Statement	RAH	Hoke, Scotland	53 min
May 29, 9:37 AM EDT	Special Weather Statement	RAH	Lee, Moore	83 min
May 29, 9:43 AM EDT	Areal Flood Advisory	RAH	Moore	3 hr
May 29, 11:01 AM EDT	Flash Flood Warning Considerable damage threat	RAH	Sampson, Wayne	3 hr
May 29, 12:04 PM EDT	Special Weather Statement	RAH	Stanly	56 min
May 29, 12:50 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Montgomery, Richmond, Stanly	55 min
May 29, 12:52 PM EDT	Areal Flood Advisory	RAH	Randolph	113 min
May 29, 1:31 PM EDT	Special Weather Statement	RAH	Chatham	59 min
May 29, 1:44 PM EDT	Special Weather Statement	RAH	Anson, Montgomery, Richmond, Stanly	61 min
May 29, 1:50 PM EDT	Areal Flood Advisory	RAH	Anson, Montgomery, Moore, Richmond, Stanly	3 hr
May 29, 1:58 PM EDT	River Flood Warning	RAH	Johnston	39 hr
May 29, 2:10 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Stanly	3 hr
May 29, 2:19 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	41 min
May 29, 2:58 PM EDT	Special Weather Statement	RAH	Harnett, Lee	62 min
May 29, 3:25 PM EDT	Special Weather Statement	RAH	Wake	50 min
May 29, 3:43 PM EDT	Special Weather Statement	RAH	Cumberland, Sampson	77 min
May 29, 7:11 PM EDT	River Flood Warning	RAH	Cumberland	63 hr

Nearby

Special Weather Statements in North Carolina, 2020 Every 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.