Interaction between a moist/unstable air mass and a weak upper level trough, as well as the Piedmont surface trough, resulted in scattered to widespread showers and thunderstorms. Heavy rain resulted in some isolated flash flooding in the city of Thomasville.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RAH wrote it up.
Interaction between a moist/unstable air mass and a weak upper level trough, as well as the Piedmont surface trough, resulted in scattered to widespread showers and thunderstorms. Heavy rain resulted in some isolated flash flooding in the city of Thomasville.
The local office's own words before the first event, 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 the first event at Jul 11, 10:40 AM EST, 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RALEIGH NC 1140 AM EDT THU JUL 11 2013 .SYNOPSIS... AN UPPER LEVEL DISTURBANCE WILL CROSS THE MIDDLE ATLANTIC REGION TODAY. A COLD FRONT WILL APPROACH FROM THE WEST AND MOVE INTO OUR AREA LATE TONIGHT INTO FRIDAY. && .NEAR TERM /THROUGH TONIGHT/... AS OF 1140 AM THURSDAY... ...A FLASH FLOOD WATCH IS NOW IN EFFECT THROUGH 6AM FRIDAY... WE HAVE BECOME INCREASINGLY CONCERNED OF THE POTENTIAL FOR LOCALIZED FLASH FLOODING THIS AFTERNOON AND TONIGHT. IT IS DIFFICULT TO PIN POINT WHICH PART OF CENTRAL NC IS MOST AT RISK BUT GIVEN THE SYNOPTIC ENVIRONMENT WITH INCREASING LARGE SCALE ASCENT...A LINGERING SHEAR AXIS PROVIDING MESOSCALE FOCUS...A VERY MOIST AIR MASS WITH PW VALUES OF 2.0 INCHES AND SLOW STORM MOTION WE THINK THIS IS PRUDENT. THIS IS DESPITE THE FACT THAT THE FLOODING MAY BE LOCALIZED AND THAT AVERAGE QPF VALUES MAY RANGE BETWEEN 1.0 AND 1.5 INCHES DURING THE NEXT COUPLE OF DAYS. FIRST CONVECTION DEVELOPED AROUND MID MORNING TODAY AND CONTINUES TO DEVELOP AND EXPAND ALL THE WHILE FLASH FLOODING WAS OBSERVED IN MECKLENBURG COUNTY EARLIER THIS MORNING. URBAN AREAS WILL BE PARTICULARLY PRONE BUT GIVEN THE RELATIVELY MOIST CONDITIONS DURING THE PAST FEW WEEKS...SOILS ARE MUCH WETTER THAN NORMAL SUGGESTING INCREASED RUNOFF INTO CREEKS AND STREAMS THAT ARE ALREADY ELEVATED. HAVE INCREASED POPS AND ADDED THE MENTION OF HEAVY RAIN TO THE GRIDS. MAX TEMPERATURES HAVE BEEN LOWERED SLIGHTLY ACROSS THE WESTERN HALF OF THE CWA WITH THE WIDESPREAD CLOUDS AND SCATTERED PRECIPITATION. HIGHS SHOULD RANGE IN THE 82 TO 88 DEGREE RANGE TODAY. -BLAES SIGNIFICANT AMPLIFICATION OF THE FLOW ALOFT WILL CONTINUE TONIGHT...WITH TROUGH AMPLIFICATION TO A POSITION ALONG OR JUST WEST OF THE APPALACHIANS TO THE LOWER MS VALLEY BY FRI MORNING...WHICH WILL ALLOW THE ACCOMPANYING RELATIVELY DEEP LOW LEVEL FRONTAL ZONE (THROUGH AT LEAST H85) TO SPREAD EAST OF THE MOUNTAINS AND INTO THE WESTERN PIEDMONT TOWARD DAYBREAK - A TIMING OF ABOUT 6 HRS SLOWER THAN PREVIOUSLY INDICATED. WHILE THE PRECEDING AFTERNOON AND EVENING STORMS WILL HAVE OVERTURNED EARLIER INSTABILITY...A COUPLE OF DEGREES OF MID LEVEL COOLING WITH THE TROUGH WILL LIKELY PROMOTE RENEWED DESTABILIZATION. THE TROUGH AMPLIFICATION WILL PLACE CENTRAL NC IN AN AREA OF STRONG QG FORCING FOR ASCENT...FAVORABLE FOR THE REDEVELOPMENT OF ADDITIONAL SHOWERS AND STORMS...SOME POSSIBLY ORGANIZED INTO A LINE WITH THE LINEAR FORCING ALONG THE FRONT. A FEW STRONG WIND GUSTS WILL CONSEQUENTLY REMAIN POSSIBLE THROUGHOUT THE NIGHT. PERSISTENT LOWS IN THE LOWER 70S. RAINFALL AMOUNTS DURING THE 24 HOUR PERIOD GIVEN ARE EXPECTED TO RANGE FROM AROUND ONE HALF TO AN INCH OR SO...THOUGH WITH LOCALLY HIGHER AMOUNTS...PARTICULARLY WHERE AFTERNOON AND OVERNIGHT CONVECTION OCCURS IN THE SAME AREAS. I && .SHORT TERM /FRIDAY AND FRIDAY NIGHT/... AS OF 210 AM THURSDAY... A NEARLY STATIONARY FRONT SHOULD BEGIN FRIDAY ALONG THE COASTAL PLAIN. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED... MAINLY ALONG AND EAST OF THE FRONT FRIDAY INTO FRIDAY EVENING. THIS WOULD MEAN THAT THE HIGHEST POP WILL BE IN THE SE... WITH A MINIMUM IN THE NW PIEDMONT WHERE SOMEWHAT MORE STABLE AIR WILL BE LOCATED. WITH LITTLE TO NO UPPER DYNAMICS... FORCING/CONVERGENCE ALONG THE BOUNDARY SHOULD WORK THE DIURNAL SEA BREEZE CONVERGENCE TO ENHANCE CONVECTION IN THE SE. LIMITED MID-LEVEL LAPSE RATES SHOULD KEEP THE SEVERE THREAT VERY LOW. HOWEVER... HIGH PRECIPITABLE WATER VALUES ALONG AND AHEAD OF THE BOUNDARY (2 INCHES) WILL ALLOW FOR HEAVY RAIN IN THE SE. HIGHS FRIDAY ARE EXPECTED TO BE IN THE LOWER TO MID 80S. SCATTERED SHOWERS AND THUNDERSTORMS FRIDAY EVENING IN THE SE... WITH ONLY ISOLATED ACTIVITY EXPECTED IN THE WESTERN ZONES. THE NEARLY STALLED BOUNDARY MAY STILL PROVIDE ENOUGH CONVERGENCE FOR SCATTERED ACTIVITY IN THE SE OVERNIGHT. LOWS 70-75. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... AS OF 210 AM THURSDAY... ...CONTINUED WARM AND HUMID WITH SCATTERED THUNDERSTORMS... SATURDAY THROUGH SUNDAY... MODELS AND ENSEMBLES ARE IN GENERAL AGREEMENT IN A RETROGRADING (BACKING UP) OF THE MID/UPPER LEVEL FLOW AGAIN THIS WEEKEND. A WEAK CUT OFF MID/UPPER LEVEL LOW IS FORECAST TO BACK WESTWARD INTO THE OHIO VALLEY... WITH THE LOW LEVEL BOUNDARY OVER EASTERN NC EXPECTED TO SLOWLY WASH OUT AND BECOME DIFFUSE AS IT BACKS WESTWARD. THIS WILL ALLOW THE DEEP MOISTURE TO AGAIN PRESS BACK WESTWARD THROUGH THE PIEDMONT AS THE WEEKEND PROGRESSES. THIS WILL LIKELY MEAN LOCALLY HEAVY RAIN AGAIN OVER THE WEEKEND. SENSIBLE WEATHER SATURDAY THROUGH SUNDAY... SCATTERED SHOWERS AND THUNDERSTORMS... MAINLY DURING THE AFTERNOON AND EVENING HOURS BOTH DAYS. LOCALLY HEAVY RAIN. LOWS IN THE LOWER TO MID 70S. HIGHS IN THE 80S. MONDAY THROUGH WEDNESDAY... AS THE MID/UPPER TROUGH BACKS WESTWARD THROUGH THE OHIO VALLEY TOWARD THE MID MISSISSIPPI VALLEY... AND STRONG MID/UPPER RIDGING FOCUSES ON NEW ENGLAND... THE MEAN FLOW WILL CONTINUE TO BE A MOIST SE ONE FOR OUR REGION. ALTHOUGH THE TREND WILL BE FOR SURFACE HIGH PRESSURE TO BUILD FROM THE WESTERN ATLANTIC INTO THE SE STATES BY MID-WEEK... SCATTERED SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED IN THE WARM/HUMID RESUME OVER NC. LOWS 70-75. HIGHS IN THE 80S WITH SOME READINGS AROUND 90 WED. && .AVIATION /06Z THURSDAY THROUGH MONDAY/... AS OF 630 AM THURSDAY... EARLY MORNING LIFR CEILINGS AT KINT/KGSO/KRDU WILL GRADUALLY LIFT AND SCATTER THROUGH MVFR RANGE...TO VFR...THROUGH 15-18Z. IFR-MVFR CEILING WILL ALSO LIKELY DEVELOP FOR A FEW HOURS AT KRWI AND KFAY AS DAYTIME HEATING ACTS ON THE VERY HUMID BOUNDARY LAYER...BEFORE THOSE TOO LIFT AND SCATTER TO VFR. VFR CONDITIONS SHOULD THEN PREVAIL OUTSIDE OF A CLUSTER OR CLUSTERS OF SHOWERS AND STORMS FORECAST TO CROSS CENTRAL NC DURING THE AFTERNOON AND EVENING HOURS. CONVECTION WILL THEN LIKELY REDEVELOP OVERHEAD OR ARRIVE FROM THE WEST OVERNIGHT...IN RESPONSE TO AN APPROACHING STRONG UPPER LEVEL TROUGH AND SURFACE COLD FRONT. MORE IFR TO MVFR STRATUS WILL ALSO BE LIKELY AFTER 06Z. OUTLOOK: MORE OF THE SAME...AS THE AFOREMENTIONED COLD FRONT EDGES SLOWLY THROUGH CENTRAL NC FRI...STALLS FRI NIGHT...THEN RETREATS WESTWARD THROUGH OUR AREA ON SAT. CEILINGS FRI-SAT MAY REMAIN MVFR DEEPER INTO THE AFTERNOON HOURS...VERSUS PREVIOUS DAYS. && .RAH WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...BADGETT NEAR TERM...BLAES/MWS SHORT TERM...BADGETT LONG TERM...BADGETT AVIATION...MWS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 1116 AM EDT THU JUL 11 2013 NCZ007>011-021>028-038>043-073>078-083>086-088-089-121530- 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- 1116 AM EDT THU JUL 11 2013 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLASH FLOOD WATCH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. THE CHANCE OF THUNDERSTORMS...WITH HEAVY RAIN AND LOCALIZED FLOODING...WILL REMAIN HIGH THROUGH SATURDAY.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1028 AM EDT THU JUL 11 2013
NCZ073-074-083-111600-
ANSON-MONTGOMERY-STANLY-
1028 AM EDT THU JUL 11 2013
...SHOWERS AND ISOLATED THUNDERSTORMS PRODUCING HEAVY RAIN WILL MOVE
ACROSS STANLY...MONTGOMERY AND ANSON COUNTIES THROUGH NOON EDT...
AT 1023 AM EDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
WITH VERY HEAVY RAIN MOVING INTO WESTERN STANLY COUNTY...MOVING EAST
AT 15 MPH.
SOME LOCATIONS IMPACTED INCLUDE...FINGER...PLYLER... PLYLER...
ALBEMARLE...NORWOOD...BADIN...BADIN LAKE.
HAZARDS INCLUDE...
HEAVY RAINFALL AND MINOR FLOODING.
HEAVY RAIN MOVING SLOWLY ACROSS THE AREA MAY RESULT IN PONDED WATER
ON ROADS...STANDING WATER IN LOW LYING AREAS AND MINOR FLOODING
OF CREEKS...STREAMS AND AREAS OF POOR DRAINAGE. DRIVERS ARE URGED TO
SLOW DOWN AND USE EXTRA CAUTION TO AVOID HYDROPLANING...ESPECIALLY
IN URBAN AREAS WHERE PROLONGED HEAVY RAIN CAN QUICKLY LEAD TO FLASH
FLOODING.
IF ON OR NEAR BADIN LAKE OR ON THE YADKIN/PEE DEE RIVER BELOW THE
LAKE...GET OUT OF THE WATER AS LIGHTNING STRIKES CAN OCCUR WELL
AHEAD OF AN APPROACHING STORM...WELL AHEAD OF THE ARRIVAL OF RAIN
AND WIND. 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!
&&
LAT...LON 3550 8030 3551 8005 3514 8003 3514 8007
3512 8007 3512 8029 3519 8029 3516 8035
3517 8038 3516 8039 3516 8046 3519 8051
TIME...MOT...LOC 1423Z 267DEG 13KT 3531 8045
13SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1134 AM EDT THU JUL 11 2013
NCZ021>023-038>040-111700-
ALAMANCE-CHATHAM-DAVIDSON-FORSYTH-GUILFORD-RANDOLPH-
1134 AM EDT THU JUL 11 2013
...SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS RANDOLPH...GUILFORD...
FORSYTH...DAVIDSON...CHATHAM AND ALAMANCE COUNTIES THROUGH 100 PM
EDT...
AT 1131 AM EDT...DOPPLER RADAR INDICATED SHOWERS AND ISOLATED
THUNDERSTORMS WITH VERY HEAVY RAIN ALONG THE INTERSTATE 40 CORRIDOR
FROMTHE TRIAD EAST TO NEAR BURLINGTON. THESE SHOWERS AND STORMS WERE
MOVING EAST AROUND 15 MPH.
SOME LOCATIONS IMPACTED INCLUDE...THOMASVILLE...SOUTH
GREENSBORO...HIGH POINT...AND RANDLEMAN.
HAZARDS INCLUDE...
HEAVY RAINFALL AND MINOR FLOODING.
THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 214 AND 226.
THIS INCLUDES INTERSTATE 85 BETWEEN EXITS 96 AND 153.
HEAVY RAIN WILL RESULT IN PONDING OF WATER ON ROADWAYS...STANDING
WATER IN LOW LYING AREAS AND MINOR FLOODING OF CREEKS...STREAMS AND
AREAS OF POOR DRAINAGE. DRIVERS ARE URGED TO SLOW DOWN AND USE EXTRA
CAUTION TO AVOID HYDROPLANING...ESPECIALLY IN URBAN AREAS WHERE
PROLONGED HEAVY RAIN CAN QUICKLY LEAD TO FLASH FLOODING.
&&
LAT...LON 3608 7926 3591 7926 3587 7924 3565 7924
3561 8020 3605 8022
TIME...MOT...LOC 1531Z 180DEG 0KT 3579 7991
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</html>The Roanoke radar (KFCX), 132 km away, was scanning. The volume nearest the first event began at 16:17 UTC.
1 flash flood. Local standard time, as filed.
Numerous streets were closed in the city of Thomasville when 2-3 inches of rain fell. Some of these included, but are not limited to, Randolph Street at Holly Hill Road, Arthur Drive at Liberty Drive, Blair Street at Ridgeway Drive and Forest Drive at Maplewood Avenue.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2013Every state in 2013This day in weather historyWarnings in North Carolina, July 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 469326.