Alert archive / North Carolina / Tornado Warnings in 2017

Tornado Warning 18, NWS Newport/Morehead City, NC

September 1, 2017Greene County, Pitt County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Sep 1, 2017, 7:29 PM EDT for Greene County, Pitt County, North Carolina. It was in force for 31 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: Sep 1, 2017, 7:29 PM EDT (23:29 UTC)
Expired: Sep 1, 2017, 8:00 PM EDT
In force: 31 min
Issued by: NWS Newport/Morehead City, NC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Greene County, NC, Pitt County, NC

The radar

The Morehead City radar (KMHX), 92 km from the middle of the area, began a volume at 23:33 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

Time	Report	Where	Remark
Sep 1, 7:45 PM EDT	FUNNEL CLOUD	Ayden, NC	FUNNEL CLOUD SPOTTED IN AYDEN NEAR NC 903.

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, 11.5 hours before the alert went out and 92 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: 811 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

966 
WFUS52 KMHX 012329
TORMHX
NCC079-147-020000-
/O.NEW.KMHX.TO.W.0018.170901T2329Z-170902T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Newport/Morehead City NC
729 PM EDT FRI SEP 1 2017

The National Weather Service in Newport has issued a

* Tornado Warning for...
  East central Greene County in eastern North Carolina...
  South central Pitt County in eastern North Carolina...

* Until 800 PM EDT
    
* At 729 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Roundtree, or near Ayden, moving east at 30 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations impacted include...
  Greenville, Winterville, Ayden, Grifton, Calico, Shelmerdine,
  Ormondsville, Roundtree and Simpson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3561 7727 3541 7723 3542 7747 3543 7748
      3542 7748 3542 7754 3551 7757
TIME...MOT...LOC 2329Z 256DEG 26KT 3546 7751 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

26

1 follow-up statement

184 
WWUS52 KMHX 012341
SVSMHX

Severe Weather Statement
National Weather Service Newport/Morehead City NC
741 PM EDT FRI SEP 1 2017

NCC079-012350-
/O.CAN.KMHX.TO.W.0018.000000T0000Z-170902T0000Z/
Greene NC-
741 PM EDT FRI SEP 1 2017

...THE TORNADO WARNING FOR EAST CENTRAL GREENE COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3561 7727 3541 7723 3542 7745 3552 7747
TIME...MOT...LOC 2340Z 256DEG 26KT 3548 7741 

$$

NCC147-020000-
/O.CON.KMHX.TO.W.0018.000000T0000Z-170902T0000Z/
Pitt NC-
741 PM EDT FRI SEP 1 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM EDT FOR SOUTH
CENTRAL PITT COUNTY...
    
At 740 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Ayden, moving east at 30 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Greenville, Winterville, Ayden, Calico, Shelmerdine and Simpson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, call the National
Weather Service office in Newport at 1-800-889-
6889. This act may save lives of others in the path of dangerous
weather.

&&

LAT...LON 3561 7727 3541 7723 3542 7745 3552 7747
TIME...MOT...LOC 2340Z 256DEG 26KT 3548 7741 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

26

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 12:25 PM EDT	Small Craft Advisory	MHX		14 hr
Sep 1, 2:46 PM EDT	Special Weather Statement	MHX	Duplin, Jones, Onslow	59 min
Sep 1, 3:26 PM EDT	Special Weather Statement	MHX	Greene, Lenoir	64 min
Sep 1, 5:23 PM EDT	Areal Flood Advisory	MHX	Greene, Lenoir, Pitt	82 min
Sep 1, 6:36 PM EDT	Special Weather Statement	MHX	Greene	39 min
Sep 1, 7:03 PM EDT	Tornado Warning	MHX	Greene, Lenoir, Pitt	27 min
Sep 1, 7:55 PM EDT	Special Weather Statement	MHX	Lenoir	35 min

Nearby

Tornado Warnings in North Carolina, 2017 Every tornado warning in 2017 Tornadoes 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.