Scattered thunderstorms developed along a lee trough over northeast Georgia during the evening hours. As the cluster of storms moved southeast it produced areas of wind damage.
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 GSP wrote it up.
Scattered thunderstorms developed along a lee trough over northeast Georgia during the evening hours. As the cluster of storms moved southeast it produced areas of wind damage.
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 Greenville-Spartanburg, SC wrote its last area forecast discussion before the first event at Aug 21, 6:49 PM EST, 51 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 749 PM EDT SUN AUG 21 2011 .SYNOPSIS... A COLD FRONT WILL MOVE ACROSS THE REGION TONIGHT...AND SETTLE JUST SOUTHEAST OF THE AREA ON MONDAY. DRIER AIR WILL ARRIVE AS HIGH PRESSURE BUILDS TO THE NORTHWEST ON TUESDAY. ATLANTIC MOISTURE WILL THEN STEADILY RETURN TO THE REGION DURING THE LATER PART OF THE WEEK. THE PROGRESS OF TROPICAL SYSTEM IRENE WILL NEED TO BE CLOSELY MONITORED FOR NEXT WEEKEND. && .NEAR TERM /THROUGH MONDAY/... THE CONVECTION TOOK ITS OWN SWEET TIME TO INITIATE...BUT FINALLY DID. THIS WAS EXPECTED WITH A SHORT WAVE MOVING OVER A MOIST UNSTABLE AIRMASS. STILL...EXPECT CONVECTION TO REMAIN ISOLATED TO SCT AS IT MOVES OVER THE PIEDMONT THIS EVENING AND END BEFORE MIDNIGHT. MODELS TIME A WEAK COLD FRONT TO MOVE NW TO SE ACROSS THE CWA LATE TONIGHT AND EARLY MONDAY MORNING. EXPECT CLEARING BEHIND THE FRONT...EXCEPT OVER THE MTNS WHERE LOW LEVEL MOISTURE AND NWLY FLOW CONTINUE. GUIDANCE HAS SLOWED THE DRIER AIR MOVING IN BEHIND THE FRONT AND THE STRENGTH OF THE WNW FLOW. THIS WILL LIKELY LEAD TO MORE FOG FORMATION OVERNIGHT THAN PREVIOUSLY EXPECTED. LOW TEMPERATURES SHOULD RANGE AROUND NORMAL. EXPECT ISOLATED SHRA/TSRA TO REMAIN ACROSS THE WESTERN SLOPES THROUGH DAYBREAK. MONDAY...THE COLD FRONT WILL COMPLETLEY MOVE SOUTH OF THE CWA...RESULTING IN A STEADY FALL IN DEWPOINTS. HOWEVER...DAYTIME HEATING AND CONVERGENCE ALONG THE FRONT MAY SUPPORT A FEW SHRA/TSRA ACROSS THE UPPER SAVANNAH RIVER VALLEY AND SOUTHERN UPSTATE...I WILL FORECAST 20 POPS. OTHERWISE...TEMPS WILL WARM QUICKLY WITH MOSTLY TO PARTLY SUNNY CONDITIONS. HIGHS MAY VERIFY 2 TO 4 DEGREES ABOVE TODAY/S VALUES. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... AS OF 130 PM SUNDAY...THE SHORT TERM FCST PICKS UP AT 00Z ON TUESDAY WITH THE AXIS OF THE UPPER TROF LOCATED TO OUR NORTHEAST AND A STEEP UPPER RIDGE COVERING THE WESTERN TWO THIRDS OF THE CONUS. HEIGHTS ARE EXPECTED TO RISE THRU THE PERIOD AS THE UPPER TROF LIFTS TO THE NE AND THE UPPER RIDGE MAINTAINS ITS STRENGTH TO OUR WEST. ON WED..MODELS GENERATE A FAIRLY POTENT LOOKING H5 SHORTWAVE OVER THE GREAT LAKES AND PROPAGATE IT TOWARDS THE FCST AREA WED AFTERNOON/EVENING. ITS LOOKING LIKE THE SW MIGHT PASS TO FAR TO THE NORTH TO PROVIDE MUCH IN THE WAY OF DYNAMIC LIFTING OVER THE CWFA BUT OF COURSE IT COULD TRACK FARTHER TO THE SOUTH. ON TUESDAY...A SFC HIGH WILL RIDGE DOWN FROM THE NW BRINGING COOLER AND DRIER NORTHERLY LOW LVL FLOW WITH MOSTLY CLEAR SKIES AND TEMPS RIGHT AROUND CLIMO. ON WEDNESDAY...THE SFC HIGH GETS PUSHED OFF THE EASTERN SEABOARD AND OUR BOUNDARY LAYER FLOW VEERS AROUND TO THE NE AND THEN EAST. THIS SHOULD PROVIDE SOME INCREASED LOW TO MID LVL MOISTURE...HOWEVER AT THIS POINT MOST OF THE MODEL GUIDANCE IS SUGGESTING THAT ANY MOISTURE SURGE WILL BE MODEST THRU 00Z THURS. THERE WILL LIKELY BE A BROAD AREA OF UPPER LVL DIVERGENCE OVER THE FCST AREA WED AFTERNOON/EVENING...HOWEVER MOST OF THE LIFT COULD BE GENERATED TO OUR NORTH. I DO RAMP POPS UP FROM THE LATE MORNING HOURS THRU THE EVENING WITH AT LEAST A SLIGHT CHANCE OVER MOST OF THE CWFA AT SOME POINT...YET I DOUBT WE WILL SEE ANY WIDESPREAD CONVECTION. TEMPS ARE EXPECTED TO BE A DEGREE OR TWO COOLER THAN THE PREVIOUS DAY...WITH THE LOWER ELEVATIONS REACHING THE UPPER 80S AND THE LOWER 80S IN THE MT VALLEYS. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... AS OF 215 PM SUNDAY...THE MEDIUM RANGE PART OF THE FORECAST WILL CONTINUE TO FOCUS UPON THE FATE OF IRENE NEXT WEEKEND. BEFORE THE STORM MAKES ITS APPROACH FROM THE SOUTH...WE WILL HAVE TO DEAL WITH SOME MINOR CONCERNS LATE IN THE WEEK...MADE MORE COMPLICATED BY THE PRESENCE OF IRENE. THE TREND IN THE GUIDANCE IS TO SHEAR APART A SHORT WAVE DROPPING DOWN FROM THE NORTHWEST ON WEDNESDAY NIGHT AS A COL REGION DEVELOPS OVER THE CAROLINAS WITH IRENE MOVING NORTH OF CUBA. THIS WILL LIKELY HALT THE PROGRESS OF A SURFACE FRONT AND CAUSE IT TO STALL ON THE W SIDE OF THE MTNS ON THURSDAY. IF THAT HAPPENS...WE WILL LOSE SOME OF THE IMPETUS FOR SHOWER AND THUNDERSTORM ACTIVITY FOR THURSDAY AND FRIDAY. IN FACT...THE MODELS RETAIN SOME WEAK HIGH PRESSURE ACROSS THE WESTERN CAROLINAS IN BETWEEN THE FRONT W OF THE MTNS AND IRENE TO THE S. THIS WOULD ALSO BE MORE UNFAVORABLE FOR CONVECTION. BOTTOM LINE IS THINGS ARE LOOKING SOMEWHAT DRIER FOR THURSDAY AND FRIDAY AND PRECIP CHANCES WILL BE DIMINISHED...WHILE TEMPS ARE NUDGED UP A BIT. FOR SATURDAY AND SUNDAY...THE LATEST GUIDANCE CONTINUES TO MOVE A LOW OF TROPICAL ORIGIN SOMEWHERE ACROSS THE CAROLINAS...BUT THERE IS A GREAT DEAL OF UNCERTAINTY REGARDING THE TRACK. SOMETHING FARTHER WEST LIKE THE 00Z ECMWF WOULD RESULT IN A SIGNIFICANT AMOUNT OF RAIN AND A HIGH POTENTIAL FOR FLOODING...WHILE A TRACK SIMILAR TO THE 12Z GFS MIGHT ONLY AFFECT THE WRN PIEDMONT. THE FORECAST WILL CONTAIN A 40-50 PERCENT CHANCE OF RAIN WHICH IS MORE OF A MEASURE OF THE UNCERTAINTY IN THE LOW TRACK. OBVIOUSLY IF THE LOW TAKES A WESTERN TRACK WE ARE LOOKING AT CERTAIN HEAVY RAIN...BUT EVEN THE EASTERN TRACK WOULD REQUIRE A CATEGORICAL POP AROUND CHARLOTTE. THE BEST ADVICE FOR NOW IS FOR ALL INTERESTS ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA TO MONITOR THE FORECAST FOR NEXT WEEKEND. && .AVIATION /00Z MONDAY THROUGH FRIDAY/... AT KCLT AND ELSEWHERE...IT TOOK A WHILE BUT THE SHORT WAVE MOVING ACROSS THE AREA FINALLY PRODUCED ENUF LIFT TO TAP THE MOIST UNSTABLE AIR MASS AND PRODUCE ISOLATED TO SCT CONVECTION. IN GENERAL...EXPECT VFR CONDITIONS UNLESS A CELL MOVES OVER THE AIRFIELD. ALTHOUGH I HAVE PUT IN TS AT SITES WHERE CELLS ARE CURRENTLY IN PLAY. ACTIVITY SHOULD MOVE EAST OF THE AREA BY EARLY EVENING. A WEAK COLD FRONT IS EXPECTED TO SWEEP NW TO SE ACROSS THE REGION TONIGHT AND EARLY MONDAY MORNING. AFTER FROPA...WINDS WILL FAVOR A DIRECTION BETWEEN 340 TO 010 DEGREES AROUND 8 KTS. GUIDANCE HAS SLOWED THE DROP IN DEWPOINTS ACROSS THE AREA. GIVEN THIS...GUIDANCE NOW ALL AGREES ON MVFR MOST SITES OUTSIDE OF THE MTNS...AND IFR MTN VALLEYS. HAVE GONE WITH THIS SCENARIO. EXPECT NLY WINDS AND SCT CU DURING THE AFTERNOON WITH ISOLATED CONVECTION POSSIBLE OVER THE UPPER SAV RVR VALLEY. OUTLOOK...DRIER CONDITIONS ARE EXPECTED TO CONTINUE ON TUESDAY. MORE UNSETTLED WEATHER IS EXPECTED TO RETURN BY MID WEEK AS ANOTHER COLD FRONT STALLS OVER THE AREA. MORNING FOG WILL BE POSSIBLE...ESP IN MTN VALLEYS AND WHERE RAIN FALLS THE DAY BEFORE. AN EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLE SHOWING THE PERCENTAGE OF GUIDANCE MEMBERS AGREEING WITH THE SCHEDULED ISSUANCE CATEGORY IS AVAILABLE AT FOLLOWING LINK (USE LOWER CASE)... WWW.WEATHER.GOV/GSP/AVIATION/TABLES.HTM && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && SYNOPSIS...JPT NEAR TERM...NED/RWH SHORT TERM...JPT LONG TERM...PM AVIATION...NED/RWH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 401 PM EDT SUN AUG 21 2011 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-222015- RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER- IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA- ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA- HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC- CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE- MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS- GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS- PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE- GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK- ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD- 401 PM EDT SUN AUG 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND EAST OF THE BLUE RIDGE THIS AFTERNOON...AND THEN MOVE EASTWARD THROUGH THE PIEDMONT THROUGH THE EVENING HOURS. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE...PRODUCING DAMAGING WIND GUSTS AND HAIL AS LARGE AS QUARTERS. THE THUNDERSTORMS WILL ALSO PRODUCE FREQUENT LIGHTNING AND TORRENTIAL RAINFALL. ANY LOCATIONS AFFECTED BY MULTIPLE THUNDERSTORMS COULD SEE LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. A LOW PRESSURE SYSTEM OF TROPICAL ORIGIN...CURRENTLY KNOWN AS IRENE...MAY AFFECT PARTS OF THE WESTERN CAROLINAS AND NORTHEAST GEORGIA NEXT WEEKEND. FUTURE DEVELOPMENTS WITH REGARD TO THE TRACK OF THE SYSTEM WILL DETERMINE HOW MUCH...IF ANY...HEAVY RAIN AND FLOODING WILL IMPACT THE REGION. .SPOTTER INFORMATION STATEMENT... NONE. MOORE
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
741 PM EDT SUN AUG 21 2011
SCZ006-007-220030-
GREATER GREENVILLE-SPARTANBURG-
741 PM EDT SUN AUG 21 2011
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL SPARTANBURG AND EASTERN
GREENVILLE COUNTIES THROUGH 830 PM EDT...
AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR GREER...OR 10 MILES NORTHEAST OF DOWNTOWN
GREENVILLE...MOVING EAST AT 20 MPH.
THIS STORM WILL BE NEAR...
GSP AIRPORT...
DUNCAN...
REIDVILLE...
ROEBUCK...
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
LAT...LON 3487 8237 3504 8232 3504 8228 3503 8180
3470 8191
07SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
747 PM EDT SUN AUG 21 2011
NCZ036-056-069-071-220030-
CATAWBA-IREDELL-LINCOLN-MECKLENBURG-
747 PM EDT SUN AUG 21 2011
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN LINCOLN...NORTHERN
MECKLENBURG...SOUTHEASTERN CATAWBA AND SOUTHERN IREDELL COUNTIES
THROUGH 830 PM EDT...
AT 743 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MAIDEN...OR 6 MILES SOUTHEAST OF NEWTON...
MOVING EAST AT 15 MPH.
THIS STORM WILL BE NEAR...
DENVER...
TERRELL...
LAKE NORMAN...
CORNELIUS...
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
LAT...LON 3539 8082 3552 8129 3570 8123 3566 8077
3565 8076
07SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
803 PM EDT SUN AUG 21 2011
NCZ082-220030-
UNION-
803 PM EDT SUN AUG 21 2011
...A STRONG THUNDERSTORM WILL AFFECT EASTERN UNION COUNTY THROUGH 830
PM EDT...
AT 759 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WINGATE...OR 7 MILES EAST OF MONROE...MOVING
EAST AT 20 MPH.
THIS STORM WILL BE NEAR...
MARSHVILLE...
STURDIVANTS...
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
LAT...LON 3496 8029 3495 8030 3483 8031 3483 8053
3508 8048 3511 8029 3503 8029
07SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 813 PM EDT SUN AUG 21 2011 NCZ068>070-220100- CLEVELAND-GASTON-LINCOLN- 813 PM EDT SUN AUG 21 2011 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CLEVELAND...SOUTHERN LINCOLN AND WESTERN GASTON COUNTIES THROUGH 900 PM EDT... AT 808 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR KINGSTOWN...OR 5 MILES NORTHWEST OF SHELBY...MOVING EAST AT 20 MPH. THIS STORM WILL BE NEAR... SHELBY... CHERRYVILLE... KINGS MOUNTAIN... BESSEMER CITY... VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. LAT...LON 3544 8115 3519 8118 3526 8170 3544 8168 07
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
820 PM EDT SUN AUG 21 2011
SCZ009-014-220045-
CHESTER-YORK-
820 PM EDT SUN AUG 21 2011
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CHESTER AND
SOUTHEASTERN YORK COUNTIES THROUGH 845 PM EDT...
AT 816 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 4 MILES SOUTHWEST OF EDGEMOOR...OR 10 MILES
NORTHEAST OF CHESTER...MOVING EAST AT 20 MPH.
THIS STORM WILL BE NEAR...
RICHBURG...
CATAWBA...
FORT LAWN...
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
LAT...LON 3467 8088 3463 8089 3471 8118 3488 8113
3486 8086 3484 8086 3482 8089 3477 8086
3474 8087 3469 8085
07SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
832 PM EDT SUN AUG 21 2011
NCZ070>072-220115-
CABARRUS-GASTON-MECKLENBURG-
832 PM EDT SUN AUG 21 2011
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL MECKLENBURG...
NORTHEASTERN GASTON AND WESTERN CABARRUS COUNTIES THROUGH 915 PM
EDT...
AT 829 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR MOUNTAIN ISLAND LAKE...OR 10 MILES NORTHWEST
OF CENTER CITY CHARLOTTE...MOVING EAST AT 20 MPH.
THIS STORM WILL BE NEAR...
PAW CREEK...
HUNTERSVILLE...
I-77 AT I-85...
UNC CHARLOTTE...
HARRISBURG...
VERY HEAVY RAINFALL...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH
ARE EXPECTED WITH THIS STORM.
LAT...LON 3520 8054 3521 8055 3513 8065 3524 8108
3540 8105 3540 8096 3543 8095 3546 8050
07The Greer radar (KGSP), 101 km away, was scanning. The volume nearest the first event began at 00:41 UTC.
3 thunderstorm wind. Local standard time, as filed.
Multiple trees were blown down along highway 172 in extreme southern Hart County.
Numerous trees were blown down across the county, mainly across the northern and western sections.
Another round of severe thunderstorms downed multiple trees from the Reed Creek area, across Hartwell and to areas southeast of town.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2011Every state in 2011This day in weather historyWarnings in Georgia, August 2011
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: 343749, 343751, 343752.