Scattered convection impacted central North Carolina as a deep upper level trough and associated strong surface cold front approached and crossed the area. Strong moisture transport resulted in above normal precipitable water values and this, combined with the ultimate training of the storms, lead to flash flooding as many areas received 2-4 inches of rain, with isolated amounts up to 5-6 inches.
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.
Scattered convection impacted central North Carolina as a deep upper level trough and associated strong surface cold front approached and crossed the area. Strong moisture transport resulted in above normal precipitable water values and this, combined with the ultimate training of the storms, lead to flash flooding as many areas received 2-4 inches of rain, with isolated amounts up to 5-6 inches. In addition, some isolated wind damage occurred and as a secondary area of low pressure developed and tracked along the front, an isolated tornado formed. This EF1 tornado uprooted numerous trees, causing substantial property damage near Durham, 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 15, 1:56 PM EST, 2 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RALEIGH NC 256 PM EDT THU MAY 15 2014 .SYNOPSIS...A STRONG AND SLOW MOVING COLD FRONT WILL TRACK EASTWARD ACROSS THE REGION TODAY THROUGH FRIDAY. WEAK BUT COOL HIGH PRESSURE WILL BUILD IN FOR THE WEEKEND. && .NEAR TERM /THROUGH TONIGHT/... AS OF 255 PM THURSDAY... DEEP TROUGH OVER THE CENTRAL US CONTINUES TO MOVE SLOWLY EASTWARD. COLD FRONT HAS MADE VERY LITTLE PROGRESS OVER THE PAST FEW HOURS... AND IS STILL LOCATED IN THE VICINITY OF THE TN/NC BORDER. NEXT SHORTWAVE ROUNDING THE BASE OF THE TROUGH OVER THE NEXT FEW HOURS SHOULD KICK IT IN TO EASTWARD MOTION. A LARGE AREA OF PREFRONTAL RAIN... WITH A FEW EMBEDDED THUNDERSTORMS IS CURRENTLY LOCATED ACROSS THE CENTRAL PORTION OF THE CWA. PRIMARY THREAT CONTINUES TO BE URBAN FLOODING... AS THE EARLIER BAND OF CONVECTION IS BEGINNING TO OUTRUN THE BEST FORCING... AND THE BEST SHEAR REMAINS OVER THE WESTERN PART OF THE STATE. THE SEVERE THREAT IS WANING... HOWEVER THE POTENTIAL FOR A WEAK SECONDARY LOW PRESSURE AREA TO DEVELOP OVER THE REGION... WHICH SHOULD SHOW ITSELF OVER THE NEXT FEW HOURS IF IT IS GOING TO DEVELOP... CONTINUES THE POTENTIAL FOR A SEVERE STORM. SHOWER ACTIVITY IS POSSIBLE THROUGH THE OVERNIGHT HOURS AS THE FRONT CROSSES THE AREA... AND CONDITIONS WILL REMAIN CLOUDY. LOWS IN THE LOW 50S TO LOW 60S W TO E. && .SHORT TERM /FRIDAY AND FRIDAY NIGHT/... AS OF 255 PM THURSDAY... THE FRONT WILL BE IN THE COASTAL PLAIN AROUND 12Z FRIDAY... AND CLEARING THE CAROLINA COAST AROUND 18Z. UPPER LEVEL TROUGHING WILL REMAIN IN PLACE OVER THE EASTERN US ON FRIDAY. HIGHS WILL BE A FEW DEGREES BELOW NORMAL... IN THE LOW TO MID 70S. DRIER AIR WILL BEGIN TO MOVE IN BEHIND THE FRONT... WITH SKIES BECOMING MOSTLY CLEAR. MUCH COOLER LOWS IN THE MID 40S TO LOW 50S. && .LONG TERM /SATURDAY THROUGH THURSDAY/... AS OF 125 PM THURSDAY... SATURDAY THROUGH SUNDAY NIGHT: A SHORTWAVE ROUNDING THE BASE OF THE LONGWAVE TROUGH WILL MOVE ACROSS THE CAROLINAS ON SATURDAY. MODELS DEPICT A DECREASING TREND IN THE MOISTURE AS THE WAVE MOVES ACROSS OUR CWA...SO FOR NOW WILL KEEP THE FORECAST FOR SATURDAY DRY. HOWEVER BY SUNDAY...ANOTHER SHORTWAVE WILL CROSS OUR AREA LATER IN THE DAY. THE MOISTURE WITH THIS ONE LOOKS A LITTLE BETTER AND FARTHER NORTH...SO WILL INCLUDE A SLIGHT CHANCE POP ACROSS OUR FAR S/SE ZONES FOR THE AFTERNOON AND EVENING. TEMPS WILL RUN A FEW DEGREES BELOW NORMAL DURING THE WEEKEND UNDER THE INFLUENCE OF THE TROUGH AND ENHANCED CLOUD COVER ASSOC WITH THE AFOREMENTIONED SHORT WAVES. HIGHS IN THE MID-UPR 70S AND LOWS IN THE LOWER 50S. MONDAY THROUGH THURSDAY...A LONGWAVE RIDGE WILL BUILD ACROSS THE MISSISSIPPI RIVER VALLEY...DEEP SOUTH...AND TN VALLEY. OUR AREA WILL REMAIN UNDER NW FLOW ON THE EAST SIDE OF THIS RIDGE. WHILE MOST OF THIS PERIOD SHOULD BE DRY ACROSS OUR AREA WITH THE RIDGE BUILDING EAST...WE'LL HAVE TO WATCH THE WEAK DISTURBANCES AND RESULTING CONVECTIVE COMPLEXES THAT WILL LIKELY BE MOVING ACROSS THE TOP OF THE RIDGE AND DOWN THE EAST SIDE. ONE SUCH WAVE IS PROGGED TO MOVE ACROSS THE MID ATLANTIC REGION ON WEDNESDAY...AND MAY BRING A SLIGHT CHANCE FOR SHOWERS/TSTMS ACROSS OUR N/NE ZONES. TEMPS DURING THE FIRST HALF OF THE WEEK WILL REMAIN NEAR OR SLIGHTLY BELOW NORMAL GIVEN THE N/NW FLOW...BUT WILL WARM BACK TO OR ABOVE NORMAL BY MIDWEEK AS THE SFC HIGH MOVES TO OUR S AND E AND THE MIDLEVEL RIDGE BUILDS TOWARD THE CAROLINAS. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... AS OF 137 PM WEDNESDAY... GENERALLY MVFR CIGS HAVE OVERSPREAD THE AREA... AS A BAND OF HEAVY RAIN WITH EMBEDDED THUNDERSTORMS HAS ADVANCED ACROSS KINT/KGSO... AND IS CURRENTLY AFFECTING KRDU/KFAY... AND WILL AFFECT KRWI AROUND 21Z. EASTWARD PROGRESSION OF THIS BAND IS SLOW... AND SEVERAL HOURS OF RAIN IS POSSIBLE AT THESE SITES. COLD FRONT WILL CLEAR THE CAROLINA COAST BY 18Z FRIDAY... AND CONDITIONS WILL RAPIDLY IMPROVE IN ITS WAKE... WITH WINDS BECOMING WESTERLY. VFR CONDITIONS ARE LIKELY THROUGH EARLY NEXT WEEK. && .RAH WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH FROM 9 AM EDT THIS MORNING THROUGH THIS EVENING FOR NCZ007-021>023-038-039-073-074-083. && SYNOPSIS...HARTFIELD NEAR TERM...SEC SHORT TERM...SEC LONG TERM...NP AVIATION...SEC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RALEIGH NC 1205 PM EDT THU MAY 15 2014 NCZ008>011-024>028-040>043-075>078-085-086-088-089-161615- GRANVILLE-VANCE-WARREN-HALIFAX-ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE- CHATHAM-WAKE-JOHNSTON-WILSON-MOORE-LEE-HARNETT-WAYNE-SCOTLAND-HOKE- CUMBERLAND-SAMPSON- 1205 PM EDT THU MAY 15 2014 ...SEVERE THUNDERSTORM WATCH 157 IN EFFECT UNTIL 8 PM EDT THIS EVENING... 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. SEVERE THUNDERSTORM WATCH. NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST INTO THE AREA. A FEW STORMS COULD BECOME SEVERE...WITH A PRIMARY THREAT OF DAMAGING WINDS OR AN ISOLATED TORNADO. THE THREAT FOR SEVERE WEATHER WILL BE GREATEST BETWEEN NOON AND 8 PM. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NCZ084-161615- RICHMOND- 1205 PM EDT THU MAY 15 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST INTO THE AREA. A FEW STORMS COULD BECOME SEVERE...WITH A PRIMARY THREAT OF DAMAGING WINDS OR AN ISOLATED TORNADO. THE THREAT FOR SEVERE WEATHER WILL BE GREATEST BETWEEN NOON AND 8 PM. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NCZ021-022-038-039-073-074-083-161615- FORSYTH-GUILFORD-DAVIDSON-RANDOLPH-STANLY-MONTGOMERY-ANSON- 1205 PM EDT THU MAY 15 2014 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT 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. NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST INTO THE AREA. AN ISOLATED STORM COULD BECOME SEVERE...WITH A PRIMARY THREAT OF DAMAGING WINDS OR A TORNADO. THE THREAT FOR SEVERE WEATHER WILL BE GREATEST BETWEEN 10 AM AND 6 PM. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NCZ007-023-161615- PERSON-ALAMANCE- 1205 PM EDT THU MAY 15 2014 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...SEVERE THUNDERSTORM WATCH 157 IN EFFECT UNTIL 8 PM EDT THIS EVENING... 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. SEVERE THUNDERSTORM WATCH. NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST INTO THE AREA. AN ISOLATED STORM COULD BECOME SEVERE...WITH A PRIMARY THREAT OF DAMAGING WINDS OR A TORNADO. THE THREAT FOR SEVERE WEATHER WILL BE GREATEST BETWEEN 10 AM AND 6 PM. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
124 PM EDT THU MAY 15 2014
NCZ041-151745-
WAKE-
124 PM EDT THU MAY 15 2014
...STRONG THUNDERSTORM WILL AFFECT CENTRAL AND NORTHERN WAKE COUNTY
UNTIL 145 PM EDT...
AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
THUNDERSTORM OVER RALEIGH...MOVING NORTHEAST AT 20 MPH.
BRIEF TORRENTIAL RAINFALL AND WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
RALEIGH...CARY...WAKE FOREST...RDU INTERNATIONAL...WILLIAM B UMSTEAD
STATE PARK...PURNELL...FALLS LAKE AND FALLS LAKE BOAT RAMP.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
45 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.
DOPPLER RADAR HAS INDICATED SOME ROTATION IN THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO
BE ISSUED.
&&
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.
LAT...LON 3600 7847 3598 7846 3576 7868 3581 7878
3585 7880 3592 7876 3594 7873 3597 7871
3607 7868
TIME...MOT...LOC 1722Z 203DEG 19KT 3583 7870
VINCENTSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
226 PM EDT THU MAY 15 2014
NCZ026-041-151930-
WAKE-FRANKLIN-
226 PM EDT THU MAY 15 2014
...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF NORTHEASTERN WAKE
AND NORTHWESTERN FRANKLIN COUNTIES UNTIL 330 PM EDT...
AT 226 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WAKE FOREST...OR 13 MILES SOUTHWEST OF
LOUISBURG...MOVING NORTHEAST AT 20 MPH.
WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
LOUISBURG...WAKE FOREST...FRANKLINTON...ROLESVILLE...YOUNGSVILLE AND
INGLESIDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.
&&
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.
LAT...LON 3613 7822 3594 7836 3590 7846 3593 7850
3601 7850 3620 7840 3624 7829
TIME...MOT...LOC 1826Z 204DEG 19KT 3595 7846
MWSSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
335 PM EDT THU MAY 15 2014
NCZ042-078-152000-
WAYNE-JOHNSTON-
335 PM EDT THU MAY 15 2014
...A SHOWER WILL AFFECT PORTIONS OF NORTHWESTERN WAYNE AND
SOUTHEASTERN JOHNSTON COUNTIES UNTIL 400 PM EDT...
AT 333 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SHOWER 7 MILES WEST OF GOLDSBORO...MOVING NORTH AT 35 MPH.
WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS SHOWER.
LOCATIONS IMPACTED INCLUDE...
GOLDSBORO...FREMONT...MICRO...PINE LEVEL...KENLY...PRINCETON...
PIKEVILLE...MAR-MAC AND NAHUNTA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
50 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.
DOPPLER RADAR HAS INDICATED WEAK ROTATION WITH THIS SHOWER. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO
BE ISSUED.
&&
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.
LAT...LON 3534 7798 3532 7819 3562 7827 3564 7814
3561 7813 3558 7806 3560 7806 3559 7797
TIME...MOT...LOC 1933Z 174DEG 30KT 3541 7810
77PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
354 PM EDT THU MAY 15 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0330 PM HEAVY RAIN 5 S NEW HOPE 35.74N 78.54W
05/15/2014 M2.20 INCH WAKE NC TRAINED SPOTTER
STORM TOTAL SO FAR. 1 INCH FELL BETWEEN 225 AND 325 PM.
RELAYED BY CENTRAL CAROLINA SKYWARN.
&&
EVENT NUMBER RAH1401376
SHARPPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
425 PM EDT THU MAY 15 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0420 PM HEAVY RAIN 4 N GOLDSTON 35.65N 79.34W
05/15/2014 M1.93 INCH CHATHAM NC COCORAHS
STORM TOTAL SO FAR. RAIN STARTED JUST AFTER NOON.
&&
EVENT NUMBER RAH1401377
SHARPPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
451 PM EDT THU MAY 15 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0440 PM HEAVY RAIN 4 N NEW HOPE 35.86N 78.57W
05/15/2014 M2.77 INCH WAKE NC TRAINED SPOTTER
&&
EVENT NUMBER RAH1401378
MWSThe Raleigh/Durham radar (KRAX), 18 km away, was scanning. The volume nearest the first event began at 21:07 UTC.
9 flash flood, 1 tornado, 1 thunderstorm wind. Local standard time, as filed.
Southall Road in Raleigh was closed due to heavy rain. Observations indicated that 2-4 inches of rain fell in a short period of time across this area.
A storm survey confirmed an EF-1 tornado near Durham. Damage consisted of dozens of snapped and uprooted trees and approximately 40 homes that experienced roof or other structural damage. Most of the damage to the homes was caused by falling trees and other debris. However, there were at least a half a dozen homes that experienced minor roof damage solely from the wind. In one case, a large oak tree was uprooted and fell onto a home, slicing through the roof and an exterior wall.
Bolin Creek was out of its banks, impacting Umstead Drive. In fact, the road was impassible and eventually had to be closed due to the flooding. In addition, some of the Camelot Village Apartments on Estes Drive (located near Bolin Creek) had to be evacuated. Observations indicated that 3-5 inches of rain fell throughout the county.
There was minor damage to an outbuilding and a few trees were blown down south of Surl, near the Durham County line.
Several roads were barricaded due to high water in the Timberlake area.
An overflowing pond washed out a section of West Cornwallis Road near the intersection of Owls Wood Lane. Observations indicated that 3-5 inches of rain fell throughout the county.
A foot of flowing water was impacting Atlantic Avenue near New Hope Road. Observations indicated that 3-5 inches of rain fell throughout the county, with isolated amounts up to 6 inches.
Highway 55 near South Salem Street in Apex was closed due to high water. Observations indicated that 3-5 inches of rain fell throughout the county, with isolated amounts up to 6 inches.
Odessy Road was closed near the intersection of Penrith Drive due to a creek coming out of its bank. Observations indicated that 2-4 inches of rain fell throughout the county, with isolated amounts up to 5 inches.
All but one lane of Glenwood Avenue had to be closed near Lynn Road due to high water. Observations indicated that 3-5 inches of rain fell throughout the county, with isolated amounts up to 6 inches.
Antioch Church Road at Lucy Garret Road was closed due to high water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2014Every state in 2014This day in weather historyThe tornado archive for North Carolina, 2014Warnings in North Carolina, May 2014
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: 515454, 515456, 515457, 515478, 515458, 515459, 515463, 515465, 515470, 515472, 515479.