Alert archive / North Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 31, NWS Newport/Morehead City, NC

July 13, 2020Greene County, Lenoir County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Jul 13, 2020, 4:21 PM EDT for Greene County, Lenoir County, North Carolina. It was in force for 27 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 13, 2020, 4:21 PM EDT (20:21 UTC)
Expired
Jul 13, 2020, 4:48 PM EDT
In force
27 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Greene County, NC, Lenoir County, NC

The radar

The Raleigh/Durham radar (KRAX), 82 km from the middle of the area, began a volume at 20:24 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 96 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, Newport, NC at 12:00Z on 2020-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 838 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, Newport, NC at 12:00Z on 2020-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.193958Sfc1 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
838 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1252 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 Jul 13, 3:37 PM EDT, 44 minutes earlier.

Area forecast discussion, Jul 13, 3:37 PM EDT, 44 minutes before
Area Forecast Discussion
National Weather Service Newport/Morehead City NC
337 PM EDT Mon Jul 13 2020

.SYNOPSIS...
A weak front will cross the area this evening and move offshore
tonight. The front will linger to our south through late week as
Bermuda high pressure builds in from the east for the next several
days.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
As of 320 PM Monday...Active convection underway over the
southern tier of the CWA at mid-afternoon with the stronger
thunderstorms producing small hail. Atmosphere quite unstable
across the region with surface-based CAPES as high as 4000 J/kg
and LI's down to around -9, so the potential for locally
damaging winds and larger hail will continue for a few more
hours. Overall, the threat of scattered strong to potentially
severe storms will continue until or shortly after 00z as
vigorous mid- level shortwave crosses the area and moves
offshore later this evening. Once the shortwave moves offshore,
would expect a quick ending to the precipitation with loss of
daytime heating. Skies clear overnight and with wet ground, some
patchy fog is possible. Lows will be in the low to mid 70s by
morning.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/...
As of 325 PM Monday...Weak ridging develops across the region
tomorrow in the wake of the mid-level shortwave. Any convective
development on Tuesday will be limited to sea breeze initiation
and widely scattered, so will have just a slight chance (20%)
PoP for Tuesday. Uniform temperatures expected for Tuesday with
highs 90-92 in most areas, except mid/upper 80s Outer Banks.

&&

.LONG TERM /TUESDAY NIGHT THROUGH MONDAY/...
As of 330 PM Mon...Upper level ridging continues over the
Carolinas through midweek, again leaving the primary focus for
afternoon convection on the sea breeze. Highs in the upper 80s
to low 80s each day. Lows in the mid to upper 70s.

Late week, a surface low develops over the Ohio Valley and pushes
northeastward through New England, eventually dragging a front into
North Carolina for the weekend. Models generally agree on timing but
that is about where the comparison ends as the GFS spins up the
system quickly and is more robust throughout the rest of the run. In
its wake, a relative surface high develops over the Ohio valley and
helps push convection with the front into North Carolina. By
contrast, the ECMWF solution is not as strong and doesn't develop
this feature. Therefore it is weaker and slower with the surface
low, and the associated front has a hard time making it into eastern
NC. Will handle for now with chance PoPs until more details evolve.
Regardless, it will continue to be warm with highs around 90 and
lows in the mid 70s.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
Short Term /through 18Z Tuesday/...
As of 1215 PM Monday...VFR conditions at early afternoon, but
fairly widespread convection is possible over the next few hours
with unstable airmass and a decent mid-level shortwave crossing
the area. Continued with TEMPO for scattered thunderstorms with
brief reduced vsbys/cigs in the late afternoon hours. All
convection should wane fairly quickly by 02-03z, followed by a
mid deck of clouds. With wet ground and light winds, some light
fog (MVFR) is possible toward morning on Tuesday.

Long Term /Tuesday night through Saturday/...
As of 4 PM Monday...VFR expected through much of the long term
aside from sea breeze convection during the afternoons and an
associated chance of fog during the early morning hours where
rain occurs. By the end of the week attention will turn to an
approaching front that may bring an increased chance of showers
and storms to the area. With this will come a better chance for
adverse aviation conditions.

&&

.MARINE...
Short Term /Tonight and Tuesday/...
As of 340 PM Monday...Winds at late afternoon are SW 10-15 knots
with a few higher gusts with seas 2-4 feet north and 3-5 feet
central and southern waters. Based on trends, have cancelled all
SCA's for area waters. Winds should generally be SW/W overnight
and Tuesday with seas dropping back to 2-4 feet for most areas
Tuesday as weak ridging builds over area waters.

Long Term /Tuesday Night through Saturday/...
As of 400 PM Mon...A period of variable wind directions is
expected Tuesday night and Wednesday, then southerly winds
should prevail through much of the rest of the forecast period
with seas around 2 feet.

&&

.MHX WATCHES/WARNINGS/ADVISORIES...
NC...Beach Hazards Statement until 8 PM EDT this evening for NCZ195-
     196-199-204-205.
MARINE...None.

&&

SYNOPSIS...MHX
NEAR TERM...CTC
SHORT TERM...CTC
LONG TERM...RTE
AVIATION...RTE/CTC
MARINE...RTE/CTC
Hazardous weather outlook, Jul 13, 4:41 AM EDT, 11 hours 40 minutes before
Hazardous Weather Outlook
National Weather Service Newport/Morehead City NC
441 AM EDT Mon Jul 13 2020

NCZ029-044>047-079>081-090>092-094-193-194-198-140845-
Martin-Pitt-Washington-Tyrrell-Mainland Dare-Greene-Beaufort-
Mainland Hyde-Duplin-Lenoir-Jones-Pamlico-Northern Craven-
Southern Craven-Inland Onslow-
441 AM EDT Mon Jul 13 2020

This Hazardous Weather Outlook is for eastern North Carolina.

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms are forecast across Eastern North
Carolina on Monday, and there is a Marginal risk of severe weather.
A few storms could produce damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ195-196-199-204-205-140845-
West Carteret-East Carteret-Coastal Onslow-Ocracoke Island-
Hatteras Island-
441 AM EDT Mon Jul 13 2020

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for eastern North Carolina.

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms are forecast across Eastern North
Carolina on Monday, and there is a Marginal risk of severe weather.
A few storms could produce damaging wind gusts.

   Beach Hazards Statement.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ203-140845-
Northern Outer Banks-
441 AM EDT Mon Jul 13 2020

...MODERATE RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...

This Hazardous Weather Outlook is for eastern North Carolina.

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms are forecast across Eastern North
Carolina on Monday, and there is a Marginal risk of severe weather.
A few storms could produce damaging wind gusts.

   Moderate Rip Current Risk.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 13, 2:47 PM EDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Newport/Morehead City NC
247 PM EDT Mon Jul 13 2020

NCZ090>092-198-131930-
Jones-Lenoir-Inland Onslow-Duplin-
247 PM EDT Mon Jul 13 2020

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN JONES...
SOUTHWESTERN LENOIR AND NORTHEASTERN DUPLIN COUNTIES...

At 246 PM EDT, strong thunderstorms were clustered near Kornegay, or
17 miles east of Warsaw, moving northeast at 15 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Phillips Crossroads, Kornegay, Beulaville, Deep Run, Pleasant Hill,
Potters Hill and Albertson.

Torrential rainfall is also occurring with this storm, and may cause
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 3502 7801 3517 7786 3518 7783 3520 7783
      3529 7774 3506 7738 3488 7778
TIME...MOT...LOC 1846Z 236DEG 11KT 3503 7778

Simms
Local storm report, Jul 13, 3:18 PM EDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
318 PM EDT MON JUL 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0314 PM     HAIL             3 SSE ASKIN             35.18N 77.05W
07/13/2020  E0.70 INCH       CRAVEN             NC   TRAINED SPOTTER

            SPOTTER CALLED TO REPORT DIME SIZE HAIL 2
            MILES N FROM NEWBERN ON HWY 17.

&&

TS
Special weather statement, Jul 13, 3:40 PM EDT, 41 minutes before
Special Weather Statement
National Weather Service Newport/Morehead City NC
340 PM EDT Mon Jul 13 2020

NCZ198-132015-
Inland Onslow-
340 PM EDT Mon Jul 13 2020

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ONSLOW COUNTY...

At 339 PM EDT, a strong thunderstorm was located near Catherine Lake,
or near New River Station, moving northeast at 15 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Jacksonville, New River Station, Half Moon, Pumpkin Center, Piney
Green, Kellum and Midway Park.

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 3464 7765 3473 7768 3492 7739 3491 7737
      3493 7736 3494 7733 3493 7727 3490 7725
      3489 7723 3489 7722 3484 7720 3483 7718
      3481 7720 3480 7717 3479 7718 3460 7762
TIME...MOT...LOC 1939Z 237DEG 13KT 3474 7754

mlee
Special weather statement, Jul 13, 3:43 PM EDT, 38 minutes before
Special Weather Statement
National Weather Service Newport/Morehead City NC
343 PM EDT Mon Jul 13 2020

NCZ090-091-132015-
Lenoir-Duplin-
343 PM EDT Mon Jul 13 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN LENOIR AND
NORTHWESTERN DUPLIN COUNTIES...

At 343 PM EDT, a strong thunderstorm was located over Mount Olive,
moving northeast at 5 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
La Grange, Mount Olive, Beautancus, Faison and Calypso.

Torrential rainfall is also occurring with this storm, and may cause
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 3519 7816 3518 7808 3519 7805 3519 7802
      3518 7798 3517 7797 3517 7793 3515 7789
      3516 7789 3518 7784 3534 7782 3537 7775
      3512 7774 3507 7816 3509 7817
TIME...MOT...LOC 1943Z 234DEG 6KT 3518 7805

mlee
Special weather statement, Jul 13, 3:57 PM EDT, 24 minutes before
Special Weather Statement
National Weather Service Newport/Morehead City NC
357 PM EDT Mon Jul 13 2020

NCZ094-194>196-132030-
West Carteret-East Carteret-Pamlico-Southern Craven-
357 PM EDT Mon Jul 13 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CRAVEN...CENTRAL
CARTERET AND SOUTH CENTRAL PAMLICO COUNTIES...

At 357 PM EDT, a strong thunderstorm was located over Havelock,
moving east at 15 mph.

Locations impacted include...
Havelock, Merrimon, Harlowe, Great Neck, Janeiro, North Harlowe and
Cherry Branch Ferry Terminal.

LAT...LON 3481 7702 3493 7707 3504 7664 3482 7659
TIME...MOT...LOC 1957Z 255DEG 15KT 3490 7689

11
Local storm report, Jul 13, 4:14 PM EDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 8:13 PM EDTBeach Hazards StatementMHXCarteret, Dare, Hyde, Onslow24 hr
Jul 13, 2:15 PM EDTSpecial Weather StatementMHXDuplin30 min
Jul 13, 2:28 PM EDTSpecial Weather StatementMHXCraven47 min
Jul 13, 2:47 PM EDTSpecial Weather StatementMHXLenoir43 min
Jul 13, 3:00 PM EDTSevere Thunderstorm WarningMHXCraven, Jones, Pamlico45 min
Jul 13, 3:40 PM EDTSpecial Weather StatementMHXOnslow35 min
Jul 13, 3:43 PM EDTSpecial Weather StatementMHXWayne32 min
Jul 13, 3:56 PM EDTSpecial Marine WarningMHX49 min
Jul 13, 3:57 PM EDTSpecial Weather StatementMHXCarteret33 min
Jul 13, 3:59 PM EDTFlash Flood WarningMHXOnslow3 hr
Jul 13, 4:20 PM EDTSpecial Marine WarningMHX40 min
Jul 13, 4:22 PM EDTSpecial Weather StatementMHXOnslow23 min
Jul 13, 4:48 PM EDTSpecial Marine WarningMHX42 min
Jul 13, 4:49 PM EDTSpecial Marine WarningMHX41 min
Jul 13, 4:56 PM EDTSpecial Weather StatementMHXCarteret34 min
Jul 13, 4:58 PM EDTSpecial Marine WarningMHX62 min
Jul 13, 5:13 PM EDTSpecial Marine WarningMHX47 min
Jul 13, 5:21 PM EDTSpecial Weather StatementMHXWashington24 min
Jul 13, 5:23 PM EDTSpecial Weather StatementMHXDuplin52 min
Jul 13, 5:26 PM EDTSpecial Weather StatementMHXHyde49 min
Jul 13, 5:28 PM EDTSpecial Marine WarningMHX47 min
Jul 13, 5:51 PM EDTSpecial Marine WarningMHX54 min
Jul 13, 6:10 PM EDTSpecial Marine WarningMHX53 min
Jul 13, 6:15 PM EDTSpecial Marine WarningMHX47 min
Jul 13, 6:29 PM EDTSpecial Weather StatementMHXDare46 min
Jul 13, 6:43 PM EDTSpecial Marine WarningMHX61 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2020Every severe thunderstorm warning in 2020

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.