Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Newport/Morehead City, NC

July 1, 2012Carteret County, Dare County, Hyde County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Jul 1, 2012, 3:49 PM EDT for Carteret County, Dare County, Hyde County, North Carolina. It was in force for 34 min. 3 reports 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
Jul 1, 2012, 3:49 PM EDT (19:49 UTC)
Expired
Jul 1, 2012, 4:23 PM EDT
In force
34 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon

Counties Carteret County, NC, Dare County, NC, Hyde County, NC

The radar

The Morehead City radar (KMHX), 56 km from the middle of the area, began a volume at 19:51 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
Jul 1, 3:50 PM EDTMARINE TSTM WIND 51Cedar Island, NCNWS MARINE PLATFORM AT CEDAR ISLAND OBSERVED A 44 KNOT MARINE THUNDERSTORM WIND GUST.
Jul 1, 3:59 PM EDTHAIL 1Cedar Island, NCREPORTED BY CEDAR ISLAND FERRY TERMINAL
Jul 1, 4:15 PM EDTMARINE TSTM WIND 52Ocracoke, NCWEATHERFLOW SENSOR AT OCRACOKE REPORTED A 45 KNOT MARINE THUNDERSTORM WIND GUST.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 1, 12:56 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 7.8 hours before the alert went out and 56 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 2012-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2962 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2012-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
2962 J/kg
Mixed-layer CIN
-200 J/kg
Mixed-layer LCL
1419 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

241 
WUUS52 KMHX 011949
SVRMHX
NCC031-055-095-012030-
/O.NEW.KMHX.SV.W.0039.120701T1949Z-120701T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
349 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OUTER BANKS HYDE COUNTY IN EASTERN NORTH CAROLINA
  EXTREME SOUTHWESTERN OUTER BANKS DARE COUNTY IN EASTERN NORTH
  CAROLINA
  EASTERN CARTERET COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 430 PM EDT

* AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 12 MILES NORTHEAST
  OF OCRACOKE TO 5 MILES WEST OF PORTSMOUTH VILLAGE TO CEDAR ISLAND
  TO DAVIS...OR ALONG A LINE EXTENDING FROM 11 MILES WEST OF HATTERAS
  TO 10 MILES WEST OF OCRACOKE TO CEDAR ISLAND TO 13 MILES NORTHEAST
  OF BEAUFORT...MOVING SOUTH AT 30 MPH. QUARTER SIZED HAIL AND WINDS
  IN EXCESS OF 58 MPH ARE LIKELY WITH THESE STORMS.

* LOCATIONS IMPACTED INCLUDE...
  STRAITS...
  HARKERS ISLAND...GLOUCESTER...
  LOLA...ATLANTIC...
  CAPE LOOKOUT LIGHTHOUSE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL WILL DAMAGE VEHICLES...WINDOWS AND SOME ROOFS. SEVERE
WINDS WILL BLOW DOWN TREES...POWER LINES...AND CAN DAMAGE MOBILE
HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THE STORM HAS PASSED. STAY AWAY FROM WINDOWS.

IF ON OR NEAR THE WATER...GET OUT OF THE WATER AND MOVE INDOORS OR 
GET INSIDE A VEHICLE. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH 
TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT 
ON THE WATER IN A THUNDERSTORM!

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING...1...8 0 0...8 8 9...6 8 8 9.... WHEN YOU CAN DO SO SAFELY

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR EASTERN NORTH CAROLINA.

&&

LAT...LON 3460 7654 3481 7666 3508 7646 3508 7642
      3508 7641 3495 7645 3495 7644 3498 7633
      3504 7636 3499 7622 3511 7607 3499 7620
      3499 7619 3510 7605 3508 7606 3521 7571
      3501 7611 3459 7653
TIME...MOT...LOC 1947Z 342DEG 27KT 3523 7587 3504 7614
          3504 7635 3480 7645

$$
1 follow-up statement
808 
WWUS52 KMHX 012023
SVSMHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
423 PM EDT SUN JUL 1 2012

NCC031-055-095-012031-
/O.CAN.KMHX.SV.W.0039.000000T0000Z-120701T2030Z/
OUTER BANKS HYDE NC-OUTER BANKS DARE NC-CARTERET NC-
423 PM EDT SUN JUL 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CARTERET...EXTREME
SOUTHWESTERN OUTER BANKS DARE AND CENTRAL OUTER BANKS HYDE COUNTIES
IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA AND 
THE WARNING IS NO LONGER IN EFFECT. 

IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE
HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL
FREE 1...8 0 0...8 8 9...6 8 8 9...OR NOTIFY YOUR NEAREST LAW
ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL
WEATHER SERVICE FORECAST OFFICE IN NEWPORT.

WHILE THE IMMEDIATE SEVERE WEATHER THREAT HAS DISSIPATED...ADDITIONAL
SEVERE WEATHER IS POSSIBLE DURING THE NEXT FEW HOURS. BE PREPARED TO
MOVE QUICKLY TO AN INTERIOR ROOM OF A SAFE SHELTER IF A WARNING IS
ISSUED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR EASTERN NORTH CAROLINA.

LAT...LON 3459 7653 3501 7611 3521 7571 3508 7606
      3510 7605 3499 7619 3499 7620 3511 7607
      3499 7622 3504 7636 3498 7633 3495 7644
      3495 7645 3508 7641 3508 7642 3508 7646
      3481 7666 3460 7654
TIME...MOT...LOC 2021Z 342DEG 27KT 3499 7578 3480 7604
          3480 7625 3456 7635

$$

10

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 11:57 PM EDTSpecial Marine WarningMHX48 min
Jul 1, 12:01 AM EDTSpecial Weather StatementMHXCurrituck44 min
Jul 1, 1:27 AM EDTSpecial Weather StatementMHXTyrrell, Washington48 min
Jul 1, 1:45 AM EDTSpecial Weather StatementMHXCurrituck45 min
Jul 1, 2:16 AM EDTSpecial Weather StatementMHXTyrrell, Washington44 min
Jul 1, 2:27 AM EDTSpecial Weather StatementMHXCurrituck33 min
Jul 1, 2:58 AM EDTSpecial Weather StatementMHXDare32 min
Jul 1, 3:25 AM EDTSpecial Weather StatementMHXDare50 min
Jul 1, 10:25 AM EDTSpecial Weather StatementMHXWashington35 min
Jul 1, 2:35 PM EDTSpecial Weather StatementMHXPamlico25 min
Jul 1, 2:41 PM EDTSpecial Weather StatementMHXCraven, Jones49 min
Jul 1, 2:46 PM EDTSpecial Marine WarningMHX44 min
Jul 1, 2:53 PM EDTSevere Thunderstorm WarningMHXBeaufort, Carteret, Craven, Hyde, Jones, Onslow and 1 more52 min
Jul 1, 3:18 PM EDTSpecial Weather StatementMHXEdgecombe57 min
Jul 1, 3:30 PM EDTSpecial Marine WarningMHX60 min
Jul 1, 3:44 PM EDTSevere Thunderstorm WarningMHXBeaufort, Craven, Duplin, Greene, Lenoir, Martin and 1 more66 min
Jul 1, 4:10 PM EDTSpecial Marine WarningMHX20 min
Jul 1, 4:12 PM EDTSevere Thunderstorm WarningMHXDuplin48 min
Jul 1, 4:25 PM EDTSevere Thunderstorm WarningMHXBeaufort, Craven, Duplin, Greene, Hyde, Jones and 2 more65 min
Jul 1, 4:36 PM EDTSevere Thunderstorm WarningMHXDare, Hyde, Tyrrell, Washington54 min
Jul 1, 4:40 PM EDTSpecial Marine WarningMHX65 min
Jul 1, 4:46 PM EDTSpecial Marine WarningMHX89 min
Jul 1, 4:48 PM EDTSevere Thunderstorm WarningMHXCarteret, Craven, Duplin, Hyde, Lenoir, Onslow and 3 more57 min
Jul 1, 4:57 PM EDTSevere Thunderstorm WarningMHXDuplin, Onslow63 min
Jul 1, 5:22 PM EDTSevere Thunderstorm WarningMHXCarteret, Craven, Onslow53 min
Jul 1, 5:29 PM EDTSpecial Marine WarningMHX31 min
Jul 1, 5:39 PM EDTSevere Thunderstorm WarningMHXCarteret, Dare, Hyde66 min
Jul 1, 5:48 PM EDTSpecial Marine WarningMHX57 min
Jul 1, 6:09 PM EDTSpecial Marine WarningMHX51 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2012Every severe thunderstorm warning in 2012

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.