Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 124, NWS Raleigh, NC

July 7, 2019Franklin County, Nash County, Warren County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 7, 2019, 2:42 PM EDT for Franklin County, Nash County, Warren County, North Carolina. It was in force for 48 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
Jul 7, 2019, 2:42 PM EDT (18:42 UTC)
Expired
Jul 7, 2019, 3:30 PM EDT
In force
48 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Franklin County, NC, Nash County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 63 km from the middle of the area, began a volume at 18:43 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 12:00Z, 6.7 hours before the alert went out and 169 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2019-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 173 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2019-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
173 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
22 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 Jul 7, 2:20 PM EDT, 22 minutes earlier.

Area forecast discussion, Jul 7, 2:20 PM EDT, 22 minutes before
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Hazardous weather outlook, Jul 7, 6:32 AM EDT, 8 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Raleigh NC
632 AM EDT Sun Jul 7 2019

NCZ008>011-025>028-039>043-073>078-083>086-088-089-081045-
Granville-Vance-Warren-Halifax-Durham-Franklin-Nash-Edgecombe-
Randolph-Chatham-Wake-Johnston-Wilson-Stanly-Montgomery-Moore-Lee-
Harnett-Wayne-Anson-Richmond-Scotland-Hoke-Cumberland-Sampson-
632 AM EDT Sun Jul 7 2019

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

Maximum heat index values between 100 and 103 degrees are expected
this afternoon, highest between 1 PM and 7 PM. Additionally, slow-
moving afternoon and evening thunderstorms will pose a risk of minor
flooding, especially in urban and poor drainage areas.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Slow-moving afternoon and evening thunderstorms will pose a risk of
flash flooding, especially in urban and poor drainage areas Monday
afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ007-021>024-038-081045-
Person-Forsyth-Guilford-Alamance-Orange-Davidson-
632 AM EDT Sun Jul 7 2019

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...Today and tonight.

Slow-moving afternoon and evening thunderstorms will pose a risk of
minor flooding, especially in urban and poor drainage areas.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Slow-moving afternoon and evening thunderstorms will pose a risk of
flash flooding, especially in urban and poor drainage areas Monday
afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 7, 12:57 PM EDT, 1 hour 45 minutes before
Special Weather Statement
National Weather Service Raleigh NC
1257 PM EDT Sun Jul 7 2019

NCZ042-071730-
Johnston NC-
1257 PM EDT Sun Jul 7 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL JOHNSTON COUNTY UNTIL
130 PM EDT...

At 1256 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles south of Clayton, or 9 miles west of Smithfield, moving east at
15 mph.

Pea size hail, wind gusts up to 40 mph, and torrential rainfall
capable of temporarily reducing visibility will be possible with
this storm.

Locations impacted include...
Smithfield and Coats Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter in a nearby building or vehicle. Wind gusts as high as
40 mph are capable of knocking down tree limbs 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 3547 7856 3556 7859 3565 7839 3547 7831
TIME...MOT...LOC 1656Z 258DEG 13KT 3553 7852

MORROW
Special weather statement, Jul 7, 1:41 PM EDT, 1 hour 1 minute before
Special Weather Statement
National Weather Service Raleigh NC
141 PM EDT Sun Jul 7 2019

NCZ041-042-077-071830-
Johnston NC-Harnett NC-Wake NC-
141 PM EDT Sun Jul 7 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HARNETT...SOUTH
CENTRAL WAKE AND WEST CENTRAL JOHNSTON COUNTIES UNTIL 230 PM EDT...

At 140 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lillington, moving east at 15 mph.

Pea size hail and wind gusts up to 40 mph will be possible with this
storm.

Locations impacted include...
Lillington, Angier, Coats, Raven Rock State Park and Buies Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3535 7889 3550 7895 3562 7861 3542 7852
TIME...MOT...LOC 1740Z 252DEG 14KT 3544 7882

JFD
Special weather statement, Jul 7, 2:28 PM EDT, 14 minutes before
Special Weather Statement
National Weather Service Raleigh NC
228 PM EDT Sun Jul 7 2019

NCZ040-075>077-071915-
Lee NC-Chatham NC-Harnett NC-Moore NC-
228 PM EDT Sun Jul 7 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN MOORE...
WESTERN HARNETT...LEE AND SOUTHERN CHATHAM COUNTIES UNTIL 315 PM
EDT...

At 227 PM EDT, Doppler radar was tracking a line of strong
thunderstorms along a line extending from near Goldston to 10 miles
south of Sanford. Movement was east at 15 mph.

Pea size hail and wind gusts up to 40 mph will be possible with these
storms.

Locations impacted include...
Sanford, Pittsboro, Goldston, Broadway, Vass, Cameron, Lemon Springs,
Gum Springs, Olivia and Pineview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3574 7905 3526 7889 3523 7926 3570 7943
TIME...MOT...LOC 1827Z 271DEG 12KT 3566 7936 3532 7918

JFD

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 8:39 PM EDTSpecial Weather StatementRAHSampson66 min
Jul 7, 12:57 PM EDTSpecial Weather StatementRAHJohnston33 min
Jul 7, 1:41 PM EDTSpecial Weather StatementRAHHarnett49 min
Jul 7, 2:28 PM EDTSpecial Weather StatementRAHChatham, Lee47 min
Jul 7, 3:08 PM EDTSpecial Weather StatementRAHHalifax67 min
Jul 7, 3:31 PM EDTSpecial Weather StatementRAHDurham44 min
Jul 7, 4:40 PM EDTSpecial Weather StatementRAHAlamance, Guilford50 min
Jul 7, 4:59 PM EDTFlash Flood WarningRAHAlamance, Guilford3 hr
Jul 7, 5:20 PM EDTSpecial Weather StatementRAHPerson40 min
Jul 7, 5:32 PM EDTSpecial Weather StatementRAHDavidson58 min
Jul 7, 5:46 PM EDTSevere Thunderstorm WarningRAHDavidson, Guilford, Randolph44 min
Jul 7, 6:09 PM EDTAreal Flood AdvisoryRAHDavidson, Guilford3 hr
Jul 7, 6:17 PM EDTSpecial Weather StatementRAHDavidson, Randolph58 min
Jul 7, 6:30 PM EDTSevere Thunderstorm WarningRAHDavidson45 min
Jul 7, 7:30 PM EDTSpecial Weather StatementRAHMontgomery60 min
Jul 7, 7:58 PM EDTAreal Flood AdvisoryRAHAlamance, Guilford2 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 2019Every 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.