An upper level jet nosing over the area from the northwest resulted in|isolated convection over the triad region during the overnight hours. |Weak steering flow allowed the storms to remain nearly stationary with |with re-development of the backside.
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.
An upper level jet nosing over the area from the northwest resulted in|isolated convection over the triad region during the overnight hours. |Weak steering flow allowed the storms to remain nearly stationary with |with re-development of the backside. Rainfall amounts of up to 10 inches was recorded near Greensboro.
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 30, 1:43 AM EST, 1 hour 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RALEIGH NC 243 AM EDT MON JUL 30 2007 .SYNOPSIS...A WEAK TROUGH OF LOW PRESSURE WILL LINGER TO OUR SOUTH OVER THE SAVANNAH BASIN THROUGH MONDAY NIGHT. HIGH PRESSURE WILL BEGIN TO EXTEND INTO OUR AREA TUESDAY AND BUILD TO OUR NORTH TO THE MID ATLANTIC COAST DURING MIDWEEK. && .NEAR TERM /THROUGH TONIGHT/... AN UPPER LEVEL JET NOSING INTO THE AREA FROM THE NORTHWEST IS RESPONSIBLE FOR THE CURRENT ISOLATED CONVECTION OCCURRING OVER THE WESTERN COUNTIES. ADDITIONAL ISOLATED CONVECTION IS POSSIBLE EARLY THIS MORNING DUE TO THE PRESENCE OF UPPER LEVEL DIVERGENCE AND MUCAPSE OF AROUND 1000 J/KG. THE NEGATIVE FACTOR FOR DEVELOPMENT WILL BE PRESENCE OF 100-150 J/K CONVECTIVE INHIBITION DUE TO NOCTURNAL COOLING. THE COVERAGE OF SHOWERS AND THUNDERSTORMS SHOULD INCREASE BY LATE MORNING AS A WEAK SHORTWAVE OVER KENTUCKY DROPS INTO THE BASE OF THE TROUGH ACROSS THE CAROLINAS. THE INCREASE WILL BE THE RESULT OF WEAK HEIGHT FALLS...MODEST LARGE SCALE ASCENT...WEAK SFC-850MB CONVERGENCE ASSOCIATED WITH A LOW LEVEL TROUGH...ALONG WITH WARM AND MOIST AIRMASS WITH PWATS 150% ABOVE NORMAL. HAVE INCREASED POPS TO THE LIKELY RANGE ACROSS THE CWA SINCE ALL THESE FACTORS WILL OCCUR DURING THE TIME OF PEAK HEATING. ANY SEVERE THREAT LOOKS TO BE LIMITED BY WEAK MID LEVEL LAPSE RATES...GENERALLY 6 C/KM OR LESS. FREEZING LEVELS WILL REMAIN RATHER HIGH (AROUND 14 KFT)...AS IS TYPICAL DURING THE SUMMERTIME...SO LARGE HAIL WILL BE DIFFICULT TO COME BY. DEEP LAYER SHEAR WILL ALSO BE WEAK WITH VALUES FORECAST TO BE IN THE 15-20 KT RANGE. STORMS WILL BE OF THE PULSE/MULTICELL VARIETY WHICH WILL CARRY A THREAT OF LOCALLY DAMAGING WINDS WITH ANY WET MICROBURSTS THAT OCCUR. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE GIVEN THE HIGH PRECIPITABLE WATER VALUES AND THE WEAK OVERALL STEERING FLOW WHICH WILL LEAD TO SOME SLOW MOVING STORMS. THE COVERAGE OF STORMS WILL DIMINISH FROM WEST TO EAST THIS EVENING AS WE LOSE DAYTIME HEATING AND THE BEST LOW LEVEL CONVERGENCE MOVES CLOSER TO THE NC COAST. WE WILL HAVE TO MONITOR THE POTENTIAL FOR DENSE FOG OVERNIGHT...ESPECIALLY IN AREAS THAT SEE RAIN TODAY. ENOUGH RESIDUAL CLOUDINESS AND A DEVELOPING LIGHT NORTH WIND MAY BE ENOUGH TO PRECLUDE WIDESPREAD FOG...BUT THAT IS SOMETHING THAT WILL BE WATCHED. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... 500MB TROUGH AXIS MOVES EAST OF THE AREA ON TUESDAY WITH NW UPPER LEVEL WINDS SPREADING OVER THE REGION. WINDS IN THE LOWER LEVELS WILL BE OUT OF THE E AND NE. SUCH A BACKING IN THE WINDS SHOULD RESULT IN A STABILIZING OF THE MID AND UPPER LEVELS...GREATLY INHIBITING ANY CHANCE OF PRECIP. HOWEVER...THE GFS IS INSISTENT ON LINGERING A 850MB SFC TROUGH OVER THE FAR EASTERN AREAS DURING THE DAY TUESDAY...FOCUSING CONVECTIVE DEVELOPMENT IN THAT AREA. WILL MAINTAIN A SMALL POP FOR THE COASTAL PLAIN FOR NOW...BUT AM LEANING TOWARD A DRY SOLUTION GIVEN THE BACKING WIND PROFILE AND TYPICALLY STABLE NORTHEAST LOW LEVEL FLOW. HIGHS SHOULD BE NEAR NORMAL...88-90. WEDNESDAY LOOKS DRY AND SEASONABLY WARM. SFC TROUGH PUSHES WELL SOUTH OF THE CWA WITH MUCH DRIER AIR FILTERING INTO THE AREA THROUGHOUT THE ENTIRE COLUMN. LOW LEVEL THICKNESSES INCREASE 4-6M SO HIGHS IN THE LOWER 90S EXPECTED. && .LONG TERM /THURSDAY THROUGH SUNDAY/... A RATHER WEAK AND NON-DESCRIPT WEATHER PATTERN IS IN THE OFFERING FOR THE END OF THE WEAK. MAIN UPPER LEVEL JET ENERGY RETREATS NORTH TO THE US/CANADIAN BORDER WHILE MAIN UPPER RIDGING STAYS LOCATED OVER THE WESTERN US AND THE WESTERN ATLANTIC. LOW LEVEL FLOW STAYS PRIMARILY E-NE THROUGH THURSDAY...SO DRY WEATHER ANTICIPATED WITH SEASONABLE TEMPERATURES. A SLIGHT WARM-UP POSSIBLE FOR FRIDAY AS UPPER HEIGHTS BUILD SOMEWHAT OVER THE AREA AS UPPER RIDGE BEGINS TO STRENGTHEN OVER THE SOUTHEAST. UPPER RIDGE BECOMES ANCHORED OVER THE SOUTHEAST FOR THE WEEKEND...LEAVING CENTRAL NC IN A WEAK WESTERLY FLOW ALOFT. TEMPS LIKELY TO BE SLIGHTLY ABOVE NORMAL. PRECIP CHANCES LOOK RATHER SMALL WITH ONLY ISOLATED DIURNAL CONVECTION OCCURRING AT BEST. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... MID LEVEL TROUGH ACROSS THE REGION AND ITS ASSOCIATED SURFACE TROUGH COUPLED WITH AMPLE MOISTURE SUGGEST WIDESPREAD CLOUDINESS ACROSS CENTRAL NC TODAY. ALREADY SEEING ISOLATED/SCATTERED SHOWERS OVER SECTIONS OF THE PIEDMONT AT 06Z. AS THE AIRMASS HEATS UP LATER TODAY (AFTER 15Z) EXPECT SHOWER COVERAGE TO INCREASE. DO EXPECT A FEW THUNDERSTORMS TODAY BUT DIFFICULT TO PINPOINT TIME AND LOCATION. THUS WENT WITH TEMPO PERIODS WITH SHOWERS AND HINTED AT THUNDER WITH THE CB REMARK IN THE CLOUD GROUP. THE STRONGER STORMS WILL BE CAPABLE OF WIND GUSTS 30-40KTS. WILL NEED TO MONITOR SATELLITE/RADAR AND AMEND AS NEEDED. CONVECTIVE COVERAGE LOOKS MUCH LESS TUE INTO WED AS RIDING NEAR SURFACE AND ALOFT OCCURS ACROSS THE AREA FROM THE W-NW. DEEP NELY FLOW SHOULD ADVECT A MORE STABLE AIR MASS INTO THE AREA. MAINLY DRY AND WARM CONDITIONS EXPECTED THROUGH THE REMAINDER OF THE WEEK. WILL LIKELY SEE PERIODS OF MVFR/IFR CONDITIONS DUE TO FOG BETWEEN 09Z-13Z WED MORNING AND AGAIN THU MORNING. && .RAH WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...JFB NEAR TERM...JFB/WSS SHORT TERM...JFB LONG TERM...JFB AVIATION...WSS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 425 AM EDT MON JUL 30 2007 NCZ007>011-021>028-038>043-073>078-083>086-088-089-311000- 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- 425 AM EDT MON JUL 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER CENTRAL NORTH CAROLINA BY THIS AFTERNOON. A FEW STORMS COULD BE STRONG TO SEVERE WITH THE MAIN THREAT BEING LOCALLY DAMAGING WINDS. HEAVY RAIN WILL ALSO BE A THREAT...WITH THE POTENTIAL FOR LOCALIZED FLOODING IN ANY SLOW MOVING THUNDERSTORM ACTIVITY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT WEATHER ASSOCIATED WITH THESE STORMS. JFB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 327 AM EDT MON JUL 30 2007 NCZ022-300830- GUILFORD- INCLUDING THE CITIES OF...GREENSBORO...HIGH POINT 327 AM EDT MON JUL 30 2007 ...THUNDERSTORM WITH HEAVY RAIN OVER NORTHERN GUILFORD COUNTY... A NEARLY STATIONARY THUNDERSTORM NEAR SUMMERFIELD WAS DUMPING VERY HEAVY RAIN....ESPECIALLY NEAR THE INTERSECTION OF HIGHWAYS 220 AND 158. UP TO FOUR INCHES OF RAIN MAY HAVE FALLEN NEAR THIS LOCATION SINCE 1:45 AM. THIS IS TH SAME AS RECEIVING A MONTHS WORTH OF RAIN IN LESS THAN TWO HOURS. IF THE HEAVY RAIN DOES NOT ABATE SOON...A FLASH FLOOD WARNING MAY BE NEEDED FOR THE SUMMERFIELD AREA.
The Roanoke radar (KFCX), 98 km away, was scanning. The volume nearest the first event began at 08:29 UTC.
4 flash flood. Local standard time, as filed.
US Highway 210 between Myers Fork Road and Rhondan Road in the Summerfield area were closed due to high water.
Residents from 3 homes off of Weitzel Drive had to be evacuated due to rising flood waters. All 3 homes suffered water damage. Automobiles located on the property were also flooded and severely damaged. Water levels were reported to have been as high as 4 feet.
Two feet of flood waters covered Ellison Road near Highway 158.
High water was reported on Main Street and Henson Street.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2007Every state in 2007This day in weather historyWarnings in North Carolina, July 2007
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 2026-09-24. Each event’s entry at NCEI: 38790, 38793, 38791, 38792.