Weak perturbation aloft rotated through the cyclonic flow across the region and interacted with a warm moist unstable atmosphere to produce scattered showers and thunderstorms. Some of these storms produced wind damage and flash flooding across portions of the Northern Piedmont of central North Carolina.
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.
Weak perturbation aloft rotated through the cyclonic flow across the region and interacted with a warm moist unstable atmosphere to produce scattered showers and thunderstorms. Some of these storms produced wind damage and flash flooding across portions of the Northern Piedmont of central North Carolina.
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 May 22, 1:58 PM EST, 3 hours 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RALEIGH NC 258 PM EDT SAT MAY 22 2010 .SYNOPSIS... UPPER LEVEL LOW PRESSURE WILL REMAIN STALLED OVER THE REGION INTO EARLY NEXT WEEK... BRINGING UNSETTLED WEATHER WITH PLENTY OF MOISTURE FLOWING IN FROM THE ATLANTIC. && .NEAR TERM /THROUGH SUNDAY/... AS OF 230 PM EDT SATURDAY... A MOIST AND MARGINALLY UNSTABLE AIR MASS WILL PERSIST ACROSS CENTRAL NC THROUGH SUNDAY. THIS TYPE OF AIR MASS COUPLED WITH PERTURBATIONS ALOFT ROTATING AROUND A DEVELOPING UPPER LEVEL LOW TO OUR NORTH WILL RESULT IN INTERVALS OF SCATTERED SHOWERS AND ISOLATED STORMS THROUGH SUNDAY. LATE THIS AFTERNOON AND TONIGHT...AXIS OF GREATEST INSTABILITY LIES ALONG OUR WESTERN AND SOUTHERN PERIPHERY WHERE 18Z MESO ANALYSIS DEPICTS MLCAPE AROUND 1000 J/KG. BEST MID LEVEL LAPSE RATES AND EFFECTIVE BULK SHEAR 30-35KTS RESIDE WEST OF THE FORECAST AREA. THUS...IF STORMS ARE ABLE TO DEVELOP OVER THE FOOTHILLS LATE THIS AFTERNOON...STORMS SHOULD MIGRATE INTO AXIS OF MODERATELY INSTABILITY OVER THE WESTERN AND SOUTHERN COUNTIES. MAIN WEATHER CONCERN WITH STORMS WILL BE DOWNBURST WINDS AND SOME HAIL AS WATER VAPOR IMAGERY DEPICTS DRIER AIR ALOFT IN THIS REGION. THIS DRIER AIR WILL ENHANCE EVAPORATIVE COOLING...LEADING TO ISOLATED STRONG/DAMAGING DOWNBURSTS. AFTER MIDNIGHT...FOCUS FOR SCATTERED SHOWERS WILL SHIFT TO THE NE COUNTIES AS AN AREA OF LOW PRESSURE ALOFT GRADUALLY DEEPENS AND DRIFTS SWD. THIS DEVELOPMENT WILL SHARPEN A 850-700MB TROUGH RESIDING OVER THE REGION. THIS SHARPENING SHOULD ENHANCE LOW-MID LEVEL CONFLUENCE...LIKELY LEADING TO THE DEVELOP OF A FEW SHOWERS LATE TONIGHT INTO SUNDAY MORNING. CLOUD COVERAGE AND LIGHT SLY FLOW WILL RESULT IN A MILD NIGHT. USED A BLEND OF NAM AND GFS MOS FOR MINS TONIGHT. SUNDAY...EXPECT CONSIDERABLE CLOUDINESS OVER NE HALF DUE TO DEEP CYCLONIC FLOW ASSOCIATED WITH THE UPPER LEVEL LOW OVER VA. MAY BE A FEW SHOWERS ONGOING TO THE NORTH AND EAST OF RALEIGH EARLY SUNDAY MORNING. MODELS IN GENERAL AGREEMENT SUGGESTING THE PASSAGE OF A VORT MAXIMUM ACROSS THE REGION SUNDAY AFTERNOON-SUNDAY NIGHT. INCREASED PVA AHEAD OF THIS FEATURE INTERACTING WITH THE MOIST AND DESTABILIZING AIR MASS SHOULD CAUSE SHOWERS AND A FEW STORMS TO INCREASE IN COVERAGE AND INTENSITY. THE BEST INSTABILITY SUNDAY AFTERNOON AND EVENING WILL LIE OVER THE SW COUNTIES WHERE THE NAM-WRF SUGGEST MLCAPE OF 2000 J/KG...LOW LEVEL LAPSE RATES NEAR 9 DEG C/KM...AND EFFECTIVE BULK SHEAR 30-35KTS. THESE PARAMETERS SUGGEST THAT STORMS ABLE TO REACH SUFFICIENT HEIGHT/STRENGTH WILL POSE A DAMAGING WIND THREAT. MARGINALLY SEVERE SIZE HAIL CANNOT BE RULED OUT. DUE TO EXPECTED CLOUD/PRECIP COVERAGE...EXPECT A 10 DEGREES SPREAD IN MAX TEMPS SUNDAY AFTERNOON. THE COOLEST HIGH TEMPS SHOULD OCCUR OVER THE NORTHERN COASTAL PLAIN WHILE THE SOUTHERN PIEDMONT MAY BE ABLE TO WARM WELL INTO THE MID 80S. THE QUESTIONABLE AREA IS ESSENTIALLY ALONG THE I-40 CORRIDOR FROM THE TRIAD TO SMITHFIELD. IF CLOUDS ARE MORE EXTENSIVE THAN CURRENTLY FORECAST...THEN MAX TEMPS MAY END UP BEING A COUPLE OF DEGREES WARMER. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/... AS OF 240 PM SATURDAY... FOR SUNDAY NIGHT THROUGH MONDAY NIGHT: IT APPEARS THAT THE BEST RAIN CHANCES WILL OCCUR IN THIS TIME FRAME... WITH EYES STILL ON A POSSIBLE HYBRID LOW DEVELOPING OFF THE SOUTHEAST COAST. THE UPPER LEVEL SHEAR ZONE REMAINS IN THE REGION WITH THE CLOSED MID LEVEL LOW DRIFTING FROM AROUND BALTIMORE/DC SOUTH TO NC THEN SC THROUGH MONDAY. MID LEVEL HEIGHTS STEADILY LOWER WELL OFF THE SE COAST NORTHEAST OF THE BAHAMAS... WHICH RESULTS IN WEAKENING OF THE LOW OVER THE CAROLINAS AS IT BEGINS TO GET SHUNTED WESTWARD AS A SE-TO-NW ORIENTED TROUGH. THE COMBINATION OF THE OFFSHORE CLOSED LOW AND A FLAT CLOSED ANTICYCLONE OVER THE NORTHWEST ATLANTIC PRODUCES AN ENHANCED EASTERLY STEERING FLOW INTO NC... ATOP THE ALREADY PROMINENT STRONG AND EXPANSIVE LOW LEVEL ATLANTIC FETCH INTO NC. WE SHOULD STILL SEE WEAK INVERTED SURFACE TROUGHING OVER CENTRAL/ERN NC WITH THE SURFACE RIDGE OFF NEW ENGLAND NOSING NARROWLY DOWN INTO THE VA/NC FOOTHILLS... BUT FOR THE MOST PART WE KEEP A STEADY EASTERLY FLOW INTO NC. AND WITH WATER VAPOR IMAGERY ALREADY SHOWING CONSIDERABLE MOISTURE IN THIS SOURCE REGION... SEE NO REASON WHY WE WON'T SEE NUMEROUS SHOWERS AND POSSIBLY A FEW STORMS THROUGH MONDAY EVENING... PARTICULAR EAST OF THE TRIAD. ALSO SUPPORTING BETTER RAIN CHANCES IN THIS PERIOD IS THE CRAS MODEL (AVAILABLE ONLINE FROM CIMSS) WHICH SHOWS AN IMPRESSIVE LONG TROPICAL-SOURCE MOIST PLUME ADVECTING TOWARD NC ON MONDAY. CURRENT BLENDED TOTAL PW IMAGERY REVEALS VALUES OF 1.7-2.2 INCHES OVER A LARGE AREA NORTH OF HISPANIOLA AND THE TURKS AND CAICOS NORTH TOWARD BERMUDA... SO GFS/NAM PROJECTIONS OF 1.5-1.6 INCHES PUSHING WEST INTO EASTERN NC IS QUITE REASONABLE. WILL RAISE POPS TO LIKELY EVERYWHERE... HIGHER EAST THROUGH MONDAY MORNING THEN HIGHER WEST MONDAY AFTERNOON/ EVENING AS THE WEAKENING COOL POOL ALOFT SHIFTS WESTWARD. NAM/GFS FORECAST SOUNDINGS SHOW A ROUGHLY DRY ADIABATIC THERMAL STRUCTURE MONDAY LEADING TO JUST MARGINAL INSTABILITY... BUT WITH LIFTED INDICES DROPPING TO -2 TO -4 AND MLCAPE OF 500-1000 J/KG MONDAY AFTERNOON... WILL ADD ISOLATED THUNDER IN THE CENTRAL/ERN CWA. LOWS ON THE WARM SIDE OF GUIDANCE BOTH NIGHTS... IN THE LOW-MID 60S WITH CLOUDS AND STEADY BREEZE INHIBITING COOLING. HAVE NUDGED HIGHS DOWN A BIT TO 73-77 MONDAY BASED ON THICKNESSES AND EXTENSIVE CLOUDINESS AND RAIN. FOR TUESDAY/TUESDAY NIGHT: BOTH THE NAM AND GFS SHOW THE SE-TO-NW ORIENTED TROUGH OVER THE WESTERN CAROLINAS FROM 850 MB UP THROUGH 500 MB CONTINUING TO PIVOT TO THE WSW LATE MONDAY NIGHT THROUGH TUESDAY MORNING WITH A LULL IN PRECIP. WITH THIS BRIEF WANING OF THE ALREADY MEAGER DYNAMIC FORCING... AND WITH THE SURFACE HIGH STRENGTHENING OVER NY/PA AND NOSING MORE STRONGLY SOUTH INTO NC PROVIDING SOME DRYING... WILL TREND POPS DOWN TO LOW CHANCES THROUGH MIDDAY TUESDAY. THEN THE GFS AND ESPECIALLY THE NAM SHOW ANOTHER WEAK WAVE ROTATING WESTWARD ON THE NORTH SIDE OF THE MID LEVEL LOW OFF THE SOUTHEAST COAST... AND THIS MOVING ONSHORE AND INTO THE COASTAL PLAIN TUESDAY AFTERNOON/EVENING SHOULD BRING A RETURN TO CHANCE POPS MAINLY IN THE EAST. WHAT IS LIKELY TO BE A HYBRID TYPE SURFACE LOW CONTINUES TO SLOWLY STRENGTHEN OFF THE SOUTHEAST COAST EAST OF SAVANNAH... AND THE CIRCULATION AROUND THIS SYSTEM COUPLED WITH THE HIGH PRESSURE CENTERED TO THE NORTH WILL KEEP A STEADY ENE BREEZE OVER THE ERN CWA BUT SHOULD KEEP LOW LEVEL FLOW LARGELY DIFFLUENT OVER THE WRN CWA... LIMITING PRECIP HERE. THE WILDCARD IN ALL OF THIS IS THE ECMWF... WHICH HAS BEEN CONSISTENT WITH A DEEPER AND MUCH MORE WESTERLY LOW (CLOSER TO THE NC COAST)... AND HENCE HAS MUCH MORE PRECIP OVER THE CAROLINAS TUESDAY... HOWEVER THIS MODEL APPEARS TO NOW BE AN OUTLIER AS THE GFS/NAM/CANADIAN/UKMET ALL KEEP THE SURFACE LOW WITH JUST A SLIGHT WEST DRIFT OFF THE SOUTHEAST COAST THROUGH MIDWEEK. WILL HAVE CHANCE POPS EAST AND SLIGHT CHANCE WEST TUESDAY... HEADING BACK TO JUST SLIGHT CHANCE EVERYWHERE TUESDAY NIGHT. HIGHS 76-79. LOWS IN THE MID 60S. -GIH && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... AS OF 245 PM SATURDAY... FOR WEDNESDAY THROUGH THURSDAY NIGHT: WE KEEP THE REX BLOCK REGIME GOING THROUGH WEDNESDAY WITH THE MID LEVEL ANTICYCLONE HOLDING OVER MI AND THE CYCLONE OFF THE SOUTHEAST COAST. AS NOTED ABOVE... THE ECMWF LOOKS TO BE A BIT TOO STRONG AND TOO FAR WEST WITH THE SURFACE AND MID LEVEL LOW... BUT THE GFS MAY BE A LITTLE TOO FAR EAST AS THE CANADIAN AND THE LATER HOURS OF THE NAM SUPPORT A SOLUTION IN BETWEEN. WILL FAVOR HOLDING THE HYBRID LOW OFF THE COAST FOR NOW... BUT WE WILL CERTAINLY NEED TO KEEP AN EYE ON THIS SYSTEM PARTICULARLY IF IT NEARS THE WARM GULF STREAM WATERS. THE CANADIAN SHOWS WEAK WAVES MOVING TO THE SOUTHWEST ACROSS THE REGION WEDNESDAY... INDUCING LIFT OVER THE SRN CWA WHERE LOW LEVEL MASS CONVERGENCE IS BEST. WILL KEEP LOW CHANCE POPS MAINLY SOUTH WEDNESDAY. THE CLOSED HIGH OVER MI DRIFTS JUST ENOUGH SOUTHWARD THURSDAY TO PUSH A MID LEVEL RIDGE AXIS DOWN INTO NC... YIELDING SOME MID LEVEL WARMING AND DRYING. BUT THE CANADIAN AND ECMWF SHOW THE LARGE POLAR VORTEX JUST OFF THE CANADIAN EAST COAST DIGGING AND WOBBLING SOUTHWARD... WHICH PUSHES A SURFACE BACKDOOR FRONT INTO THE AREA THURSDAY WITH A PRECEDING INCREASE IN LOW LEVEL MOISTURE THROUGH THE LOWEST 2-3 KM AS WELL AS BOUNDARY LAYER MASS CONVERGENCE. WHILE THE ECMWF/CANADIAN MAY BE A BIT TOO STRONG WITH THIS FRONT (AN ECMWF BIAS ACCORDING TO NCEP)... THE SURFACE HIGH PUSHING SOUTHWARD BEHIND THIS FRONT IS SOURCED FROM NUNAVUT AND MAY BE DENSE ENOUGH TO PROVIDE A STARK AIR MASS CONTRAST AND A STRONGER FRONT. WILL HAVE ANOTHER ROUND OF ISOLATED TO SCATTERED SHOWERS AS THE FRONT DROPS THROUGH LATE THURSDAY. THIS FRONT MAY ALSO HELP PUSH THE OFFSHORE LOW FARTHER TO OUR SOUTHEAST AND AWAY FROM OUR AREA. HIGHS IN THE LOW-MID 80S WEDNESDAY AND 80-85 THURSDAY. LOWS IN THE LOW-MID 60S. FOR FRIDAY THROUGH SATURDAY: IN THE ENSUING LIGHT AND DIFFLUENT NORTHWEST TO NORTHERLY MID LEVEL FLOW... COOL HIGH PRESSURE SHOULD CONTINUE TO BUILD SOUTHWARD INTO THE NORTHEAST AND MIDATLANTIC/ CAROLINAS WHICH SHOULD BRING A BIT COOLER AND LESS HUMID AIR TO THE REGION. HOWEVER... WITH A LARGE ANTICYCLONE DOMINATING THE ENTIRE CENTRAL PORTION OF THE U.S. FRIDAY/SATURDAY... WILL NEED TO WATCH FOR POSSIBLE RIDGE-RIDING WAVES AND SURFACE TROUGHS DROPPING SOUTHEAST TOWARD NC WHICH COULD BRING ISOLATED TO SCATTERED LATE DAY STORMS... INCLUDING STORMS FORMING OVER THE HIGHER TERRAIN AND MOVING ESE INTO THE PIEDMONT. WILL KEEP THIS PERIOD DRY FOR NOW... WITH TEMPS PARALLELING THE NEAR-NORMAL THICKNESSES... HIGHS NEAR 80 TO THE MID 80S AND LOWS IN THE LOW-MID 60S. -GIH && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... AS OF 150 PM SATURDAY... A MOIST AND MARGINALLY UNSTABLE AIR MASS WILL RESULT IN EXTENDED PERIODS OF MVFR CEILINGS WITH INTERVALS OF IFR CEILINGS THROUGH MONDAY. THE INSTANCES OF IFR CONDITIONS WILL BE MOST LIKELY DURING THE LATE NIGHT AND EARLY MORNING HOURS AND ASSOCIATED WITH AFTERNOON AND EARLY EVENING CONVECTION. IN ADDITION...SHOULD SEE WIDESPREAD MVFR FOG BOTH SUNDAY MORNING AND MONDAY MORNING WITH POCKETS OF IFR/LIFR FOG POSSIBLE. AN AREA OF LOW PRESSURE WILL MEANDER OVER THE MID ATLANTIC COAST STATES TONIGHT AND SUNDAY THEN DRIFT SOUTHWARD INTO NC SUNDAY NIGHT INTO MONDAY. POCKETS OF INSTABILITY ALOFT WILL ROTATE AROUND THIS UPPER LEVEL LOW. WHEN A LOBE ROTATES THROUGH CENTRAL NC AND ENCOUNTERS WITH THE MOIST UNSTABLE AIR...EXPECT SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO DEVELOP. THE THUNDERSTORMS WILL BE MOST PROMINENT DURING MAXIMUM INSTABILITY...MAINLY FROM 2 PM TO 9 PM. AN ISOLATED SEVERE STORM MAY OCCUR LATE THIS AFTERNOON AND EVENING OVER THE WESTERN AND SOUTHERN PIEDMONT...AND AGAIN SUNDAY AFTERNOON AND EVENING OVER THE SOUTHERN PIEDMONT...SANDHILLS AND SOUTHERN COASTAL PLAIN. NEAR THE STRONG/SEVERE STORMS...ANTICIPATE WIND GUSTS NEAR 55 KTS AND HAIL UP TO THE SIZE OF PENNIES OR QUARTERS. FOR TUESDAY THROUGH THURSDAY...ASIDE FOR A FEW INSTANCES OF MVFR CEILINGS DUE TO SCATTERED SHOWERS...EXPECT MAINLY VFR CONDITIONS. && .RAH WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...HARTFIELD NEAR TERM...WSS SHORT TERM...HARTFIELD LONG TERM...HARTFIELD AVIATION...WSS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 345 PM EDT SAT MAY 22 2010 NCZ007>011-021>028-038>043-073>078-083>086-088-089-230930- 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- 345 PM EDT SAT MAY 22 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED SEVERE STORMS ARE POSSIBLE LATE THIS AFTERNOON THROUGH EARLY EVENING. THE MAIN WEATHER THREATS WILL BE ISOLATED WIND GUSTS TO NEAR 60 MPH AND LARGE HAIL TO THE SIZE OF QUARTERS. THE CHANCE FOR A SEVERE STORM APPEARS TO BE BEST OVER THE WESTERN AND SOUTHERN PIEDMONT INCLUDING THE TRIAD REGION AS WELL AS ALBEMARLE...TROY AND ROCKINGHAM. THE THREAT FOR ISOLATED SEVERE THUNDERSTORMS SHOULD END AROUND 9 PM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. ISOLATED SEVERE STORMS ARE POSSIBLE SUNDAY AFTERNOON. THE MAIN SEVERE WEATHER THREATS WILL BE ISOLATED WIND GUSTS NEAR 60 MPH AND HAIL TO THE SIZE OF QUARTERS. THE MOST LIKELY TIME FOR ANY ISOLATED SEVERE STORMS WILL BE 1 PM TO 9 PM. THE THREAT AREA WILL BE ALONG AND SOUTH OF A LINE FROM GREENSBORO TO RALEIGH TO GOLDSBORO. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ENCOURAGED TO REPORT ANY SEVERE OR SIGNIFICANT WEATHER IMMEDIATELY TO THE NATIONAL WEATHER SERVICE.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
525 PM EDT SAT MAY 22 2010
NCZ024>027-040>043-076-077-222245-
CHATHAM-DURHAM-FRANKLIN-HARNETT-JOHNSTON-LEE-NASH-ORANGE-WAKE-WILSON-
525 PM EDT SAT MAY 22 2010
...STRONG THUNDERSTORMS WILL MOVE ACROSS EASTERN CHATHAM... NORTHERN
HARNETT... SOUTHERN ORANGE... DURHAM... AND WAKE COUNTIES THROUGH
630 PM...
AT 524 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS
EXTENDING FROM NEAR CHAPEL HILL SOUTHWARD THROUGH BYNUM...
PITTSBORO... MONCURE... AND LILLINGTON... MOVING EAST AT 25 MPH.
LOCATIONS IN THE PATH OF THESE STORMS INCLUDE CHAPEL HILL...
MORRISVILLE... CARY... RALEIGH... APEX... RDU INTERNATIONAL
AIRPORT... JORDAN LAKE... ANGIER... HOLLY SPRINGS AND GARNER.
HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH... VERY HEAVY RAIN IN EXCESS OF AN INCH
PER HOUR... AND OCCASIONAL CLOUD TO GROUND LIGHTNING.
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 SEEK SAFE HARBOR. THOSE CAMPING SHOULD TAKE SHELTER
IN A NEARBY BUILDING OR VEHICLE.
&&
LAT...LON 3570 7809 3535 7897 3584 7926 3584 7924
3591 7927 3602 7813
TIME...MOT...LOC 2121Z 264DEG 25KT 3578 7907
BADGETTThe Raleigh/Durham radar (KRAX), 44 km away, was scanning. The volume nearest the first event began at 22:00 UTC.
5 flash flood, 3 thunderstorm wind. Local standard time, as filed.
One tree was reported down at the intersection of Ellis Road and South Miami Boulevard.
Multiple trees were reported down at the intersection of Olive Branch Road and Doc Nichols Road near the Oak Grove Community.
Several trees were blown down near the Triple Springs Community.
Multiple road in and around Roxboro, NC were reported flooded, including the 911 center building located on Hill Street.
Flooding was reported at the intersection of Hurdle Mills Road and Patterson Drive.
Flooding was reported at the intersection of Hurdle Mills Road and Charlie Monk Road.
Flooding was reported along Old Highway 75 near the Silver Valley Community.
Flooding was reported along Moores Mill Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2010Every state in 2010This day in weather historyWarnings in North Carolina, May 2010
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: 235253, 235244, 235254, 234420, 235220, 235222, 235231, 235240.