Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 16, NWS Raleigh, NC

April 12, 2019Alamance County, Orange County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Apr 12, 2019, 4:25 PM EDT for Alamance County, Orange County, North Carolina. It was in force for 65 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 12, 2019, 4:25 PM EDT (20:25 UTC)
Expired: Apr 12, 2019, 5:30 PM EDT
In force: 65 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

Counties Alamance County, NC, Orange County, NC

The radar

The Raleigh/Durham radar (KRAX), 82 km from the middle of the area, began a volume at 20:27 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 nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.4 hours before the alert went out and 258 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 951 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Apr 12, 3:30 PM EDT, 55 minutes earlier.

Area forecast discussion, Apr 12, 3:30 PM EDT, 55 minutes before

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Hazardous weather outlook, Apr 12, 6:24 AM EDT, 10 hours 1 minute before

Hazardous Weather Outlook
National Weather Service Raleigh NC
624 AM EDT Fri Apr 12 2019

NCZ008>011-026>028-041>043-077-078-088-089-131215-
Granville-Vance-Warren-Halifax-Franklin-Nash-Edgecombe-Wake-Johnston-
Wilson-Harnett-Wayne-Cumberland-Sampson-
624 AM EDT Fri Apr 12 2019

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

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

Additional thunderstorms are expected to affect central NC late
Sunday and Sunday night, when damaging wind gusts and an isolated
tornado or two will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ007-021>025-038>040-073>076-083>086-131215-
Person-Forsyth-Guilford-Alamance-Orange-Durham-Davidson-Randolph-
Chatham-Stanly-Montgomery-Moore-Lee-Anson-Richmond-Scotland-Hoke-
624 AM EDT Fri Apr 12 2019

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

Isolated strong to severe storms will be possible this afternoon. The
primary threats will be locally damaging wind gusts and hail.

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

Additional thunderstorms are expected to affect central NC late
Sunday and Sunday night, when damaging wind gusts and an isolated
tornado or two will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Apr 12, 2:28 PM EDT, 1 hour 57 minutes before

Special Weather Statement
National Weather Service Raleigh NC
228 PM EDT FRI APR 12 2019

NCZ038-039-121900-
Randolph NC-Davidson NC-
228 PM EDT FRI APR 12 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT EASTERN DAVIDSON AND
NORTHWESTERN RANDOLPH COUNTIES UNTIL 300 PM EDT...

At 227 PM EDT, Doppler radar was tracking a line of strong
thunderstorms near High Rock Lake, or 9 miles south of Lexington,
moving northeast at 50 mph.

Pea size hail, pockets of heavy downpours, and wind gusts up to 50
mph will be possible with this storm.

Locations impacted include...
High Point, Lexington, Thomasville, Archdale, Trinity, Denton,
Gordontown, Newsom, High Rock Boat Dock Marina and Nc Wildlife Access
Boat Launch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter in a nearby building or vehicle. Wind gusts as high as
50 mph are capable of knocking down small or weakened trees and
blowing around trash cans, potted plants, lawn furniture and other
light outdoor objects.

&&

LAT...LON 3602 8007 3601 8004 3592 8004 3591 7982
      3590 7982 3552 8018 3555 8021 3558 8021
      3568 8033 3571 8032 3572 8034
TIME...MOT...LOC 1827Z 217DEG 44KT 3568 8025

MORROW

Special weather statement, Apr 12, 2:56 PM EDT, 1 hour 29 minutes before

Special Weather Statement
National Weather Service Raleigh NC
256 PM EDT FRI APR 12 2019

NCZ022-039-122000-
Guilford NC-Randolph NC-
256 PM EDT FRI APR 12 2019

...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT RANDOLPH
AND GUILFORD COUNTIES UNTIL 400 PM EDT...

At 255 PM EDT, Doppler radar was tracking an area of showers and
strong thunderstorms along a line extending from Thomasville through
9 miles south of High Point to 10 miles eoast of Lexington. Movement
was northeast at 30 mph. Some weak rotation has been measured in
these storms.

Pea size hail, heavy rain, frequent lightning strikes, and wind
gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Greensboro, High Point, Asheboro, Randleman, North Carolina Zoo,
Seagrove, McLeansville, Archdale, Summerfield and Trinity.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter in a nearby building or vehicle. Wind gusts as high as
50 mph are capable of knocking down small or weakened trees and
blowing around trash cans, potted plants, lawn furniture and other
light outdoor objects.

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3624 7953 3590 7954 3551 7980 3551 8007
      3618 8004 3626 7999
TIME...MOT...LOC 1855Z 224DEG 28KT 3592 8007 3584 8005 3578 8007

MORROW

Special weather statement, Apr 12, 3:15 PM EDT, 1 hour 10 minutes before

Special Weather Statement
National Weather Service Raleigh NC
315 PM EDT FRI APR 12 2019

NCZ074-083-084-122000-
Anson NC-Richmond NC-Montgomery NC-
315 PM EDT FRI APR 12 2019

...A STRONG THUNDERSTORM WILL AFFECT ANSON...MONTGOMERY AND CENTRAL
RICHMOND COUNTIES UNTIL 400 PM EDT...

At 314 PM EDT, Doppler radar was tracking a strong thunderstorm near
Wadesboro, moving northeast at 35 mph.

Half inch hail, heavy downpours, and wind gusts of 50 to 55 mph will
be possible with this storm. Use caution, especially if traveling in
this area, as heavy downpours will lead to reduced visibility and
possibly ponding of water on area roadways.

Locations impacted include...
Rockingham, Wadesboro, Troy, Biscoe, Ansonville, Mount Gilead,
Ellerbe, Star, Candor and Lilesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter in a nearby building or vehicle. Wind gusts as high as
50 mph are capable of knocking down small or weakened trees and
blowing around trash cans, potted plants, lawn furniture and other
light outdoor objects.

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3517 8011 3514 8007 3517 8005 3523 8009
      3551 8002 3551 7977 3528 7971 3525 7970
      3524 7967 3521 7966 3481 7979 3481 8019
      3482 8019
TIME...MOT...LOC 1914Z 208DEG 31KT 3503 8001

MORROW

Local storm report, Apr 12, 3:33 PM EDT, 52 minutes before

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Special weather statement, Apr 12, 3:54 PM EDT, 31 minutes before

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Local storm report, Apr 12, 4:09 PM EDT, 16 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
Apr 12, 1:57 PM EDT	Special Weather Statement	RAH	Forsyth	63 min
Apr 12, 2:28 PM EDT	Special Weather Statement	RAH	Davidson	32 min
Apr 12, 2:56 PM EDT	Special Weather Statement	RAH	Guilford, Randolph	64 min
Apr 12, 3:15 PM EDT	Special Weather Statement	RAH	Anson, Montgomery, Richmond	45 min
Apr 12, 3:21 PM EDT	Severe Thunderstorm Warning	RAH	Guilford, Randolph	54 min
Apr 12, 3:47 PM EDT	Areal Flood Advisory	RAH	Guilford, Randolph	58 min
Apr 12, 3:48 PM EDT	Severe Thunderstorm Warning	RAH	Alamance	42 min
Apr 12, 3:54 PM EDT	Special Weather Statement	RAH	Moore, Richmond	66 min
Apr 12, 4:18 PM EDT	Areal Flood Advisory	RAH	Alamance	117 min
Apr 12, 4:18 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Lee, Moore, Randolph	57 min
Apr 12, 4:28 PM EDT	Areal Flood Advisory	RAH	Chatham, Moore, Randolph	2 hr
Apr 12, 4:46 PM EDT	Special Weather Statement	RAH	Cumberland, Hoke, Scotland	59 min
Apr 12, 5:14 PM EDT	Special Weather Statement	RAH	Chatham, Durham, Lee	61 min
Apr 12, 5:22 PM EDT	Areal Flood Advisory	RAH	Chatham, Lee	113 min
Apr 12, 5:47 PM EDT	Special Weather Statement	RAH	Cumberland, Harnett	73 min
Apr 12, 5:59 PM EDT	Areal Flood Advisory	RAH	Durham, Orange	2 hr
Apr 12, 6:14 PM EDT	Special Weather Statement	RAH	Chatham, Lee, Wake	76 min
Apr 12, 6:40 PM EDT	Tornado Warning	RAH	Chatham, Harnett, Wake	20 min
Apr 12, 7:00 PM EDT	Special Weather Statement	RAH	Johnston	75 min
Apr 12, 7:05 PM EDT	Severe Thunderstorm Warning	RAH	Wake	40 min
Apr 12, 7:28 PM EDT	Areal Flood Advisory	RAH	Cumberland	2 hr
Apr 12, 7:32 PM EDT	Flash Flood Warning	RAH	Durham	118 min
Apr 12, 7:38 PM EDT	Special Weather Statement	RAH	Sampson	67 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.