Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Raleigh, NC

July 10, 2012Davidson County, North Carolina

NWS Raleigh, NC issued this special weather statement at Jul 10, 2012, 2:24 PM EDT for Davidson County, North Carolina. It was in force for 66 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 10, 2012, 2:24 PM EDT (18:24 UTC)
Expired: Jul 10, 2012, 3:30 PM EDT
In force: 66 min
Issued by: NWS Raleigh, NC

County Davidson County, NC

The radar

The Roanoke radar (KFCX), 121 km from the middle of the area, began a volume at 18:27 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.4 hours before the alert went out and 47 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: 526 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: -47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

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 10, 2:18 PM EDT, 6 minutes earlier.

Area forecast discussion, Jul 10, 2:18 PM EDT, 6 minutes before

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Hazardous weather outlook, Jul 10, 11:32 AM EDT, 2 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
1132 AM EDT TUE JUL 10 2012

NCZ007>011-021>028-038>043-073>078-083>086-088-089-111545-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE-
ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE-
JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-
RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
1132 AM EDT TUE JUL 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND
EVENING. THE SHOWERS AND THUNDERSTORMS WILL BE SLOW-MOVING AND ARE
CAPABLE OF PRODUCING VERY HEAVY RAIN. THE PRIMARY HAZARDOUS WEATHER
THREAT IS LOCALLY HEAVY RAIN... WHICH MAY LEAD TO RAPID RISES ON
STREAMS AND CREEKS AS WELL AS MINOR FLOODING OF URBAN LOCATIONS.
IN ADDITION...A FEW THUNDERSTORMS WILL PRODUCE STRONG DOWNBURST
WINDS AND WILL BE ACCOMPANIED BY EXCESSIVE AMOUNTS OF LIGHTNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAIN ARE POSSIBLE
TUESDAY THROUGH THURSDAY. OTHERWISE... HAZARDOUS WEATHER IS NOT
EXPECTED AT THIS TIME.

BLAES

In the hours before

Local storm report, Jul 10, 9:47 AM EDT, 4 hours 37 minutes before

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Local storm report, Jul 10, 10:58 AM EDT, 3 hours 26 minutes before

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Local storm report, Jul 10, 11:12 AM EDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
1112 AM EDT TUE JUL 10 2012

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

0530 PM     TSTM WND DMG     1 NNE MOUNT GILEAD      35.23N  80.00W
07/09/2012                   MONTGOMERY         NC   DEPT OF HIGHWAYS

            DOT REPORTED TWO TREES BLOWN DOWN IN VICINITY OF MT.
            GILEAD. TIME ESTIMATED.

&&

EVENT NUMBER RAH1200613

13

Special weather statement, Jul 10, 12:58 PM EDT, 1 hour 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1258 PM EDT TUE JUL 10 2012

NCZ008-022>027-041-101745-
ALAMANCE-DURHAM-FRANKLIN-GRANVILLE-GUILFORD-NASH-ORANGE-WAKE-
1258 PM EDT TUE JUL 10 2012

...SHOWERS AND STRONG THUNDERSTORMS WILL MOVE EAST ALONG THE
INTERSTATE 40 CORRIDOR ACROSS NASH...WAKE...ORANGE...GUILFORD...
GRANVILLE...FRANKLIN...DURHAM AND ALAMANCE COUNTIES THROUGH 145 PM
EDT...

AT 1252 PM EDT...DOPPLER RADAR INDICATED A LINE OF SHOWERS AND
THUNDERSTORMS MOVING ALONG THE INTERSTATE 40 CORRIDOR FROM NEAR
BURLINGTON EAST ACROSS DURHAM TO FRANKLINTON AND LOUISBURG. THESE
SHOWERS AND STORMS WERE MOVING EAST AT 10 MPH. MULTIPLE STORMS ARE
POSSIBLE IN SOME AREAS...WHICH COULD CAUSE SOME MINOR FLOODING.

HAZARDS INCLUDE...
HEAVY RAINFALL AND MINOR FLOODING.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 135 AND 278.

THIS INCLUDES INTERSTATE 85 BETWEEN EXITS 164 AND 191.

THIS INCLUDES THE DURHAM FREEWAY BETWEEN EXITS 6 AND 16.

THESE STORMS WILL PRODUCE HEAVY RAINFALL...WHICH WILL COULD CAUSE
MINOR FLOODING OF LOW LYING AREAS INCLUDING DITCHES...CREEKS...
ROADS AND OTHER AREAS OF POOR DRAINAGE. DO NOT CROSS FLOODED ROADS.
MOTORISTS SHOULD ALSO REDUCE DRIVING SPEEDS TO AVOID HYDROPLANING.

&&

LAT...LON 3619 7802 3592 7802 3590 7964 3615 7964
      3618 7848 3616 7842 3618 7841
TIME...MOT...LOC 1652Z 277DEG 8KT 3600 7949

13

Local storm report, Jul 10, 1:01 PM EDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
101 PM EDT TUE JUL 10 2012

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

0302 PM     TSTM WND DMG     4 WSW LINDEN            35.24N  78.82W
07/09/2012                   CUMBERLAND         NC   PUBLIC

            ROOF BLOWN OFF A WOODEN BARN... SEVERAL TREES DOWN

&&

EVENT NUMBER RAH1200614

SEC

Special weather statement, Jul 10, 2:24 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
224 PM EDT TUE JUL 10 2012

NCZ021-038-101930-
DAVIDSON-FORSYTH-
224 PM EDT TUE JUL 10 2012

...A STRONG THUNDERSTORM WILL MOVE ACROSS FORSYTH AND DAVIDSON
COUNTIES THROUGH 330 PM EDT...

AT 223 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES
SOUTH OF HUNTSVILLE...OR ABOUT 7 MILES NORTHEAST OF MOCKSVILLE...
MOVING SOUTHEAST AT 20 MPH.

SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...CLEMMONS...ARCADIA...
MIDWAY...WELCOME...LEXINGTON.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

HEAVY RAINFALL AND MINOR FLOODING.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 182 AND 201.

THIS INCLUDES INTERSTATE 85 BETWEEN EXITS 87 AND 96.

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.

&&

LAT...LON 3608 8009 3570 8015 3581 8047 3583 8049
      3585 8048 3584 8043 3586 8042 3585 8039
      3589 8042 3589 8037 3596 8038 3599 8043
      3601 8042 3605 8046 3604 8050 3605 8051
      3609 8052
TIME...MOT...LOC 1823Z 300DEG 17KT 3598 8048

SEC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:08 PM EDT	Special Weather Statement	RAH	Alamance, Davidson, Durham, Guilford, Orange, Vance and 1 more	52 min
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, 2:44 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.