Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 15, NWS Newport/Morehead City, NC

April 20, 2019Dare County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Apr 20, 2019, 4:34 AM EDT for Dare County, North Carolina. It was in force for 56 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: Apr 20, 2019, 4:34 AM EDT (08:34 UTC)
Expired: Apr 20, 2019, 5:30 AM EDT
In force: 56 min
Issued by: NWS Newport/Morehead City, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Dare County, NC

The radar

The Morehead City radar (KMHX), 150 km from the middle of the area, began a volume at 08:35 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

Newport, NC (KMHX), launched 00:00Z, 8.6 hours before the alert went out and 150 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: 938 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 375 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 8.1

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 Newport/Morehead City, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 20, 3:46 AM EDT, 48 minutes earlier.

Area forecast discussion, Apr 20, 3:46 AM EDT, 48 minutes before

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Hazardous weather outlook, Apr 20, 3:47 AM EDT, 47 minutes before

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In the hours before

Local storm report, Apr 19, 11:00 PM EDT, 5 hours 34 minutes before

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Local storm report, Apr 19, 11:22 PM EDT, 5 hours 12 minutes before

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Local storm report, Apr 20, 12:03 AM EDT, 4 hours 31 minutes before

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Local storm report, Apr 20, 12:07 AM EDT, 4 hours 27 minutes before

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Local storm report, Apr 20, 12:11 AM EDT, 4 hours 23 minutes before

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Local storm report, Apr 20, 3:37 AM EDT, 57 minutes before

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The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 8:11 PM EDT	Special Weather Statement	MHX	Beaufort, Hyde, Pamlico, Washington	64 min
Apr 19, 9:19 PM EDT	Special Weather Statement	MHX	Tyrrell	56 min
Apr 19, 10:16 PM EDT	Special Weather Statement	MHX	Dare	59 min
Apr 19, 10:50 PM EDT	Severe Thunderstorm Warning	MHX	Dare, Hyde	55 min
Apr 19, 11:56 PM EDT	Areal Flood Advisory	MHX	Dare, Hyde	2 hr
Apr 20, 1:57 AM EDT	Tornado Warning	MHX	Hyde, Tyrrell	24 min
Apr 20, 6:42 AM EDT	Small Craft Advisory	MHX		48 hr

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.