Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Raleigh, NC

July 9, 20127 counties in North Carolina

NWS Raleigh, NC issued this special weather statement at Jul 9, 2012, 8:08 PM EDT for 7 counties in North Carolina. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 9, 2012, 8:08 PM EDT (00:08 UTC)
Expired: Jul 9, 2012, 9:00 PM EDT
In force: 52 min
Issued by: NWS Raleigh, NC

Counties Alamance County, NC, Davidson County, NC, Durham County, NC, Guilford County, NC, Orange County, NC, Vance County, NC, Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 101 km from the middle of the area, began a volume at 00:11 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 00:00Z, 0.1 hours before the alert went out and 130 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: 440 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 900 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 9, 7:55 PM EDT, 13 minutes earlier.

Area forecast discussion, Jul 9, 7:55 PM EDT, 13 minutes before

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Hazardous weather outlook, Jul 9, 7:44 PM EDT, 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
744 PM EDT MON JUL 9 2012

NCZ021-022-038>043-073>078-083>086-088-089-102345-
FORSYTH-GUILFORD-DAVIDSON-RANDOLPH-CHATHAM-WAKE-JOHNSTON-WILSON-
STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-RICHMOND-SCOTLAND-
HOKE-CUMBERLAND-SAMPSON-
744 PM EDT MON JUL 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THROUGH TONIGHT.

STRONG THUNDERSTORMS ARE POSSIBLE THIS EVENING...WITH THE MAIN
THREATS BEING WIND GUSTS TO 50 MPH AND HEAVY RAINFALL RESULTING
IN PONDING OF WATER ON ROADS...AND POOR DRAINAGE FLOODING IN URBAN
AND LOW LYING AREAS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

LOCALLY HEAVY RAIN AND STREET FLOODING ARE POSSIBLE TUESDAY THROUGH
THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT
WEATHER IMMEDIATELY TO THE NATIONAL WEATHER SERVICE. YOUR REPORTS
ARE APPRECIATED.

NCZ007>011-023>028-102345-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-ALAMANCE-ORANGE-DURHAM-
FRANKLIN-NASH-EDGECOMBE-
744 PM EDT MON JUL 9 2012

...SEVERE THUNDERSTORM WATCH 483 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THROUGH TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

LOCALLY HEAVY RAIN AND STREET FLOODING ARE POSSIBLE TUESDAY THROUGH
THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT
WEATHER IMMEDIATELY TO THE NATIONAL WEATHER SERVICE. YOUR REPORTS
ARE APPRECIATED.

DJF

In the hours before

Special weather statement, Jul 9, 6:18 PM EDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
618 PM EDT MON JUL 9 2012

NCZ039-073-074-092315-
MONTGOMERY-RANDOLPH-STANLY-
618 PM EDT MON JUL 9 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS SECTIONS OF
STANLY...RANDOLPH AND MONTGOMERY COUNTIES THROUGH 715 PM EDT...

AT 618 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
BADIN...OR ABOUT 6 MILES NORTHEAST OF ALBEMARLE...MOVING NORTHEAST AT
10 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...BADIN LAKE...
ELDORADO.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

DEADLY CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

DON'T WAIT UNTIL YOU SEE THE FIRST LIGHTNING FLASH BEFORE HEADING TO
SAFETY. MOVE INDOORS AT THE FIRST SIGN OF THREATENING SKIES OR THE
FIRST SOUND OF THUNDER. MAKE SURE THAT LIGHTNING IS WELL AWAY FROM
YOUR LOCATION BEFORE RESUMING OUTDOOR ACTIVITY.

BOATERS ON THE OPEN WATER AND THOSE CAMPING OUTDOORS ARE ESPECIALLY
VULNERABLE TO THE DANGERS OF LIGHTNING. BOATERS SHOULD SEEK SAFE
HARBOR. THOSE CAMPING SHOULD TAKE SHELTER IN A NEARBY BUILDING OR
VEHICLE.

&&

LAT...LON 3551 8015 3551 8007 3556 8007 3564 7993
      3542 7979 3532 8007 3549 8018
TIME...MOT...LOC 2218Z 240DEG 7KT 3543 8010

WSS

Special weather statement, Jul 9, 7:00 PM EDT, 1 hour 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
700 PM EDT MON JUL 9 2012

NCZ007>010-100000-
GRANVILLE-PERSON-VANCE-WARREN-
700 PM EDT MON JUL 9 2012

...SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS WARREN...VANCE...PERSON
AND GRANVILLE COUNTIES THROUGH 800 PM EDT...

AT 657 PM EDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
WITH VERY HEAVY RAIN ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST OF
WISE TO 7 MILES SOUTHWEST OF BUSHY FORK...OR ALONG A LINE EXTENDING
FROM 12 MILES NORTH OF WARRENTON TO PROSPECT HILL. THE SHOWERS AND
THUNDERSTORMS WERE MOVING EAST AT 30 MPH.

HAZARDS INCLUDE...
PEA SIZE HAIL.
GUSTY WINDS OF 40 TO 50 MPH.
FREQUENT...DEADLY CLOUD TO GROUND LIGHTNING.

THIS INCLUDES INTERSTATE 85 BETWEEN EXITS 202 AND 233.

IF YOU SEE LIGHTNING OR HEAR THUNDER...YOU ARE AT RISK. TAKE SHELTER
INDOORS IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A
VEHICLE PROVIDES SAFETY FROM LIGHTNING. BOATERS SHOULD MOVE TO SAFE
HARBOR AS THE SKY THREATENS...WELL IN ADVANCE OF APPROACHING STORMS.

PERSONS TRAVELLING THIS EVENING SHOULD BE PREPARED FOR HEAVY RAIN...
REDUCING VISIBILITY AND CAUSING AT LEAST MINOR FLOODING ON AREA
ROADWAYS. USE EXTRA CAUTION WHEN DRIVING THIS EVENING...ESPECIALLY
AS THE SUN GOES DOWN.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR PARTS OF CENTRAL NORTH CAROLINA.

&&

LAT...LON 3654 7790 3636 7792 3620 7801 3621 7811
      3625 7814 3627 7830 3623 7838 3616 7842
      3618 7849 3614 7852 3615 7880 3624 7880
      3624 7916 3654 7913
TIME...MOT...LOC 2257Z 279DEG 33KT 3655 7820 3623 7912

DJF

Special weather statement, Jul 9, 7:02 PM EDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
702 PM EDT MON JUL 9 2012

NCZ022>024-100000-
ALAMANCE-GUILFORD-ORANGE-
702 PM EDT MON JUL 9 2012

...STRONG THUNDERSTORMS WILL MOVE ACROSS SECTIONS OF
ORANGE...GUILFORD AND ALAMANCE COUNTIES THROUGH 800 PM EDT...

AT 700 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 6 MILES EAST OF CARR TO MONTICELLO...OR ALONG A
LINE EXTENDING FROM PROSPECT HILL TO 8 MILES SOUTH OF
REIDSVILLE...MOVING SOUTHEAST AT 10 MPH. ADDITIONAL STRONG
THUNDERSTORMS MAY ALSO DEVELOP IN THE VICINITY OF GREENSBORO...HIGH
POINT AND RANDLEMAN.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

DEADLY CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THESE THUNDERSTORMS ARE PRODUCING AN EXCESSIVE AMOUNT OF LIGHTNING.
SEEK SHELTER INDOORS AND STAY AWAY FROM THE WINDOWS. MANY LIGHTNING
STRIKES WILL OCCUR WELL AHEAD OF THE HEAVY RAIN AND GUSTY WINDS. IF
YOU CANNOT SEEK SHELTER INDOORS TAKE COVER IN A VEHICLE.

DON'T WAIT UNTIL YOU SEE THE FIRST LIGHTNING FLASH BEFORE HEADING TO
SAFETY. MOVE INDOORS AT THE FIRST SIGN OF THREATENING SKIES OR THE
FIRST SOUND OF THUNDER. MAKE SURE THAT LIGHTNING IS WELL AWAY FROM
YOUR LOCATION BEFORE RESUMING OUTDOOR ACTIVITY.

&&

LAT...LON 3625 7915 3624 7896 3623 7895 3620 7895
      3620 7896 3612 7897 3608 7898 3604 7898
      3593 7993 3625 7979
TIME...MOT...LOC 2300Z 301DEG 9KT 3624 7911 3623 7964

WSS

Special weather statement, Jul 9, 7:46 PM EDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
746 PM EDT MON JUL 9 2012

NCZ011-026>028-100045-
EDGECOMBE-FRANKLIN-HALIFAX-NASH-
746 PM EDT MON JUL 9 2012

...STRONG THUNDERSTORMS WILL MOVE ACROSS NASH...HALIFAX...FRANKLIN
AND EDGECOMBE COUNTIES THROUGH 845 PM EDT...

AT 744 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
GLENVIEW...OR ABOUT 12 MILES NORTH OF ROCKY MOUNT...MOVING WEST AT 15
MPH.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE AVENTON...
CENTERVILLE... CASTALIA... LOUISBURG... AND INGLESIDE.

HAZARDS INCLUDE...
HALF INCH DIAMETER SIZE HAIL.
GUSTY WINDS OF 30 TO 40 MPH.

DEADLY CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 132 AND 173.

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3600 7740 3591 7734 3582 7735 3580 7747
      3568 7766 3583 7775 3587 7783 3584 7785
      3602 7854 3617 7850 3616 7842 3627 7830
      3617 7788 3649 7767 3641 7754 3632 7757
      3633 7744 3624 7737 3622 7738 3611 7723
TIME...MOT...LOC 2344Z 104DEG 14KT 3613 7782

10

Local storm report, Jul 9, 7:48 PM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
748 PM EDT MON JUL 09 2012

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

0722 PM     TSTM WND GST     PIEDMONT TRIAD APT      36.10N  79.94W
07/09/2012  M40 MPH          GUILFORD           NC   ASOS

&&

EVENT NUMBER RAH1200600

DJF

Special weather statement, Jul 9, 8:08 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:15 PM EDT	Areal Flood Advisory	RAH	Franklin, Halifax, Nash, Warren	2 hr
Jul 9, 8:46 PM EDT	Special Weather Statement	RAH	Edgecombe, Franklin, Halifax, Nash, Wilson	59 min
Jul 9, 8:57 PM EDT	Special Weather Statement	RAH	Alamance, Chatham, Davidson, Durham, Guilford, Lee and 3 more	93 min
Jul 9, 9:28 PM EDT	Areal Flood Advisory	RAH	Chatham, Randolph	75 min
Jul 9, 10:42 PM EDT	Flash Flood Warning	RAH	Guilford	2 hr
Jul 9, 10:49 PM EDT	Special Weather Statement	RAH	Harnett	56 min
Jul 10, 12:58 PM EDT	Special Weather Statement	RAH	Alamance, Durham, Franklin, Orange	47 min
Jul 10, 2:24 PM EDT	Special Weather Statement	RAH	Davidson	66 min
Jul 10, 2:44 PM EDT	Areal Flood Advisory	RAH	Edgecombe, Nash, Wilson	2 hr
Jul 10, 3:29 PM EDT	Special Weather Statement	RAH	Davidson	61 min
Jul 10, 4:11 PM EDT	Special Weather Statement	RAH	Montgomery, Randolph	64 min
Jul 10, 4:17 PM EDT	Areal Flood Advisory	RAH	Davidson	2 hr
Jul 10, 5:09 PM EDT	Special Weather Statement	RAH	Montgomery, Moore	66 min
Jul 10, 5:14 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Moore, Richmond	46 min
Jul 10, 5:22 PM EDT	Special Weather Statement	RAH	Anson	53 min
Jul 10, 5:50 PM EDT	Areal Flood Advisory	RAH	Anson, Montgomery, Moore, Richmond, Stanly	100 min
Jul 10, 6:10 PM EDT	Special Weather Statement	RAH	Cumberland	65 min
Jul 10, 6:17 PM EDT	Special Weather Statement	RAH	Hoke, Moore	58 min
Jul 10, 6:26 PM EDT	Special Weather Statement	RAH	Scotland	64 min
Jul 10, 6:35 PM EDT	Areal Flood Advisory	RAH	Cumberland, Hoke, Sampson, Scotland	3 hr
Jul 10, 6:45 PM EDT	Severe Thunderstorm Warning	RAH	Hoke, Scotland	45 min
Jul 10, 7:10 PM EDT	Special Weather Statement	RAH	Anson	50 min
Jul 10, 7:13 PM EDT	Flash Flood Warning	RAH	Cumberland	3 hr
Jul 10, 7:31 PM EDT	Special Weather Statement	RAH	Cumberland	59 min

Nearby

Special Weather Statements in North Carolina, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.