Alert archive / North Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS Newport/Morehead City, NC

May 31, 2017Dare County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at May 31, 2017, 5:13 PM EDT for Dare County, North Carolina. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 31, 2017, 5:13 PM EDT (21:13 UTC)
Expired
May 31, 2017, 6:00 PM EDT
In force
47 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Dare County, NC

The radar

The Norfolk radar (KAKQ), 148 km from the middle of the area, began a volume at 21:15 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.

What was reported inside it

TimeReportWhereRemark
May 31, 5:29 PM EDTHAIL 0.25Kitty Hawk, NCPEA SIZE HAIL REPORTED ON WEST KITTY HAWK RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 9.2 hours before the alert went out and 179 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 2017-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 629 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 2017-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 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
629 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1151 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

300 
WUUS52 KMHX 312113
SVRMHX
NCC055-312200-
/O.NEW.KMHX.SV.W.0021.170531T2113Z-170531T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Newport/Morehead City NC
513 PM EDT WED MAY 31 2017

The National Weather Service in Newport has issued a

* Severe Thunderstorm Warning for...
  Northwestern Outer Banks Dare County in eastern North Carolina...

* Until 600 PM EDT

* At 513 PM EDT, a severe thunderstorm was located over Point Harbor,
  or near Kill Devil Hills, moving northeast at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Kill Devil Hills, Southern Shores, Wright Brothers National
  Monument, Duck Coe Pier, Nags Head Fishing Pier and Avalon Pier.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Please send your reports of hail and/or wind damage, including trees
or large limbs downed, by calling the National Weather Service office
in Newport at 1-800-889-6889.

&&

LAT...LON 3621 7573 3597 7559 3595 7578 3610 7587
      3611 7586 3610 7584 3607 7580 3608 7579
      3609 7574 3612 7575 3613 7575 3611 7574
      3614 7575 3620 7576
TIME...MOT...LOC 2113Z 246DEG 16KT 3608 7576 

HAIL...1.00IN
WIND...60MPH
 
$$

SGK

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 8:45 PM EDTSpecial Weather StatementMHXDuplin30 min
May 31, 2:33 PM EDTSpecial Weather StatementMHXGreene, Pitt57 min
May 31, 3:06 PM EDTSpecial Weather StatementMHXGreene54 min
May 31, 4:14 PM EDTSpecial Weather StatementMHXHyde61 min
May 31, 4:15 PM EDTSevere Thunderstorm WarningMHXDuplin, Lenoir45 min
May 31, 4:45 PM EDTSpecial Weather StatementMHXCraven30 min
May 31, 4:50 PM EDTSpecial Marine WarningMHX25 min
May 31, 4:57 PM EDTSpecial Weather StatementMHXLenoir63 min
May 31, 5:00 PM EDTSevere Thunderstorm WarningMHXDuplin, Jones, Lenoir, Onslow45 min
May 31, 5:03 PM EDTSevere Thunderstorm WarningMHXCraven, Pamlico42 min
May 31, 5:06 PM EDTSpecial Marine WarningMHX54 min
May 31, 5:09 PM EDTSpecial Weather StatementMHXCurrituck36 min
May 31, 5:40 PM EDTSpecial Weather StatementMHXOnslow50 min
May 31, 5:44 PM EDTSpecial Weather StatementMHXCraven, Pamlico61 min
May 31, 5:47 PM EDTSpecial Marine WarningMHX58 min
May 31, 5:55 PM EDTSpecial Weather StatementMHXTyrrell65 min
May 31, 6:10 PM EDTAreal Flood AdvisoryMHXCraven, Jones, Pamlico2 hr
May 31, 6:18 PM EDTSpecial Weather StatementMHXCarteret57 min
May 31, 6:31 PM EDTSpecial Weather StatementMHXOnslow44 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2017Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.