Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Raleigh, NC

August 30, 2018Guilford County, North Carolina

NWS Raleigh, NC issued this special weather statement at Aug 30, 2018, 10:59 PM EDT for Guilford County, North Carolina. It was in force for 46 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 30, 2018, 10:59 PM EDT (02:59 UTC)
Expired: Aug 30, 2018, 11:45 PM EDT
In force: 46 min
Issued by: NWS Raleigh, NC

County Guilford County, NC

The radar

The Raleigh/Durham radar (KRAX), 106 km from the middle of the area, began a volume at 03:01 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 00:00Z, 3.0 hours before the alert went out and 32 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: 2630 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1396 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: -16 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 Aug 30, 9:04 PM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Aug 30, 9:04 PM EDT, 1 hour 55 minutes before

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Hazardous weather outlook, Aug 30, 9:55 PM EDT, 1 hour 4 minutes before

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In the hours before

Special weather statement, Aug 30, 8:16 PM EDT, 2 hours 43 minutes before

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Special weather statement, Aug 30, 8:47 PM EDT, 2 hours 12 minutes before

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Special weather statement, Aug 30, 9:20 PM EDT, 1 hour 39 minutes before

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Special weather statement, Aug 30, 10:08 PM EDT, 51 minutes before

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Special weather statement, Aug 30, 10:45 PM EDT, 14 minutes before

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Special weather statement, Aug 30, 10:59 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
Aug 30, 8:16 PM EDT	Special Weather Statement	RAH	Vance	29 min
Aug 30, 8:47 PM EDT	Special Weather Statement	RAH	Vance	58 min
Aug 30, 9:20 PM EDT	Special Weather Statement	RAH	Forsyth	55 min
Aug 30, 10:08 PM EDT	Special Weather Statement	RAH	Guilford	67 min
Aug 30, 10:45 PM EDT	Special Weather Statement	RAH	Durham	45 min
Aug 30, 11:25 PM EDT	Special Weather Statement	RAH	Montgomery, Randolph	65 min
Aug 30, 11:29 PM EDT	Special Weather Statement	RAH	Nash	31 min
Aug 30, 11:45 PM EDT	Special Weather Statement	RAH	Alamance	45 min
Aug 30, 11:59 PM EDT	Special Weather Statement	RAH	Nash	46 min
Aug 31, 12:20 AM EDT	Special Weather Statement	RAH	Chatham	55 min
Aug 31, 12:38 AM EDT	Areal Flood Advisory	RAH	Guilford	73 min
Aug 31, 12:42 AM EDT	Special Weather Statement	RAH	Edgecombe	63 min
Aug 31, 1:16 AM EDT	Special Weather Statement	RAH	Alamance, Durham, Orange	89 min
Aug 31, 1:26 AM EDT	Special Weather Statement	RAH	Wake	34 min
Aug 31, 1:36 AM EDT	Areal Flood Advisory	RAH	Durham, Orange	3 hr
Aug 31, 1:55 AM EDT	Special Weather Statement	RAH	Wake	50 min
Aug 31, 2:34 AM EDT	Special Weather Statement	RAH	Franklin, Granville	56 min
Aug 31, 1:43 PM EDT	Special Weather Statement	RAH	Richmond	47 min
Aug 31, 2:08 PM EDT	Areal Flood Advisory	RAH	Moore, Richmond, Scotland	56 min
Aug 31, 4:15 PM EDT	Special Weather Statement	RAH	Anson	45 min
Aug 31, 4:23 PM EDT	Special Weather Statement	RAH	Stanly	52 min
Aug 31, 5:14 PM EDT	Special Weather Statement	RAH	Wayne	46 min
Aug 31, 5:35 PM EDT	Special Weather Statement	RAH	Cumberland	40 min
Aug 31, 6:23 PM EDT	Special Weather Statement	RAH	Johnston	52 min
Aug 31, 6:30 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Sampson	25 min
Aug 31, 7:47 PM EDT	Special Weather Statement	RAH	Edgecombe, Wilson	43 min
Aug 31, 7:48 PM EDT	Special Weather Statement	RAH	Halifax	42 min

Nearby

Special Weather Statements in North Carolina, 2018 Every special weather statement in 2018

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.