Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 191, NWS Raleigh, NC

August 13, 2019Franklin County, Nash County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 13, 2019, 5:26 PM EDT for Franklin County, Nash County, North Carolina. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 13, 2019, 5:26 PM EDT (21:26 UTC)
Expired: Aug 13, 2019, 6:30 PM EDT
In force: 64 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Franklin County, NC, Nash County, NC

The radar

The Raleigh/Durham radar (KRAX), 51 km from the middle of the area, began a volume at 21:27 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 13, 2:58 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.4 hours before the alert went out and 159 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: 560 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 941 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 13, 4:00 PM EDT, 1 hour 26 minutes earlier.

Area forecast discussion, Aug 13, 4:00 PM EDT, 1 hour 26 minutes before

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Hazardous weather outlook, Aug 13, 3:56 PM EDT, 1 hour 30 minutes before

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In the hours before

Special weather statement, Aug 13, 4:14 PM EDT, 1 hour 12 minutes before

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Local storm report, Aug 13, 4:38 PM EDT, 48 minutes before

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Local storm report, Aug 13, 5:04 PM EDT, 22 minutes before

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Special weather statement, Aug 13, 5:05 PM EDT, 21 minutes before

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Special weather statement, Aug 13, 5:12 PM EDT, 14 minutes before

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Special weather statement, Aug 13, 5:16 PM EDT, 10 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 13, 2:57 PM EDT	Special Weather Statement	RAH	Warren	63 min
Aug 13, 3:06 PM EDT	Special Weather Statement	RAH	Durham	54 min
Aug 13, 3:10 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Orange	29 min
Aug 13, 3:12 PM EDT	Special Weather Statement	RAH	Montgomery	48 min
Aug 13, 3:20 PM EDT	Severe Thunderstorm Warning	RAH	Vance, Warren	40 min
Aug 13, 3:22 PM EDT	Special Weather Statement	RAH	Forsyth	53 min
Aug 13, 3:39 PM EDT	Special Weather Statement	RAH	Person	66 min
Aug 13, 3:46 PM EDT	Severe Thunderstorm Warning	RAH	Person	59 min
Aug 13, 3:49 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford	56 min
Aug 13, 4:01 PM EDT	Severe Thunderstorm Warning	RAH	Halifax, Warren	59 min
Aug 13, 4:04 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Montgomery, Richmond	56 min
Aug 13, 4:14 PM EDT	Special Weather Statement	RAH	Franklin, Granville	61 min
Aug 13, 4:34 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Halifax, Nash, Vance and 1 more	56 min
Aug 13, 4:35 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford, Randolph	55 min
Aug 13, 4:35 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Wake	40 min
Aug 13, 5:05 PM EDT	Special Weather Statement	RAH	Alamance, Orange	40 min
Aug 13, 5:12 PM EDT	Special Weather Statement	RAH	Hoke	63 min
Aug 13, 5:16 PM EDT	Special Weather Statement	RAH	Halifax	59 min
Aug 13, 5:22 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Orange	38 min
Aug 13, 5:26 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Davidson, Montgomery, Moore, Randolph	23 min
Aug 13, 5:48 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Wilson	57 min
Aug 13, 5:58 PM EDT	Special Weather Statement	RAH	Chatham, Wake	47 min
Aug 13, 6:21 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wake, Wayne	39 min
Aug 13, 6:38 PM EDT	Special Weather Statement	RAH	Wayne	67 min
Aug 13, 6:50 PM EDT	Special Weather Statement	RAH	Wayne, Wilson	40 min
Aug 13, 7:03 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne	42 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2019 Every severe thunderstorm warning in 2019

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.