Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Raleigh, NC

July 14, 2017Halifax County, North Carolina

NWS Raleigh, NC issued this special weather statement at Jul 14, 2017, 9:09 PM EDT for Halifax County, North Carolina. It was in force for 51 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: Jul 14, 2017, 9:09 PM EDT (01:09 UTC)
Expired: Jul 14, 2017, 10:00 PM EDT
In force: 51 min
Issued by: NWS Raleigh, NC

County Halifax County, NC

The radar

The Norfolk radar (KAKQ), 100 km from the middle of the area, began a volume at 01:10 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

Roanoke, VA (KRNK), launched 00:00Z, 1.2 hours before the alert went out and 219 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: 531 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 Jul 14, 8:00 PM EDT, 1 hour 9 minutes earlier.

Area forecast discussion, Jul 14, 8:00 PM EDT, 1 hour 9 minutes before

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Hazardous weather outlook, Jul 14, 6:55 PM EDT, 2 hours 14 minutes before

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In the hours before

Special weather statement, Jul 14, 3:27 PM EDT, 5 hours 42 minutes before

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Special weather statement, Jul 14, 4:13 PM EDT, 4 hours 56 minutes before

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Special weather statement, Jul 14, 4:17 PM EDT, 4 hours 52 minutes before

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Special weather statement, Jul 14, 5:03 PM EDT, 4 hours 6 minutes before

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Special weather statement, Jul 14, 5:21 PM EDT, 3 hours 48 minutes before

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Special weather statement, Jul 14, 9:09 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
Jul 14, 11:30 PM EDT	Special Weather Statement	RAH	Lee, Wake	60 min
Jul 14, 11:41 PM EDT	Special Weather Statement	RAH	Randolph	64 min
Jul 15, 12:44 AM EDT	Special Weather Statement	RAH	Lee	61 min
Jul 15, 2:39 PM EDT	Special Weather Statement	RAH	Stanly	36 min
Jul 15, 3:19 PM EDT	Special Weather Statement	RAH	Stanly	26 min
Jul 15, 3:35 PM EDT	Areal Flood Advisory	RAH	Stanly	115 min
Jul 15, 3:43 PM EDT	Special Weather Statement	RAH	Harnett	62 min
Jul 15, 3:52 PM EDT	Flash Flood Warning	RAH	Stanly	2 hr
Jul 15, 4:11 PM EDT	Special Weather Statement	RAH	Anson	64 min
Jul 15, 4:40 PM EDT	Special Weather Statement	RAH	Richmond	50 min
Jul 15, 5:18 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	57 min
Jul 15, 5:22 PM EDT	Special Weather Statement	RAH	Cumberland	38 min
Jul 15, 6:04 PM EDT	Areal Flood Advisory	RAH	Cumberland	3 hr
Jul 15, 6:13 PM EDT	Special Weather Statement	RAH	Cumberland, Sampson	62 min
Jul 15, 6:19 PM EDT	Areal Flood Advisory	RAH	Davidson, Forsyth	3 hr
Jul 15, 6:48 PM EDT	Special Weather Statement	RAH	Sampson	57 min

Nearby

Special Weather Statements in North Carolina, 2017 Every special weather statement in 2017

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.