On July 21st, a developing surface low across the Great Lakes traveled along a stationary boundary draped across the North Country. Surface conditions became increasingly unstable during the afternoon with temperatures in the 80s and dewpoints in the 60s and lower 70s.
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 BTV wrote it up.
On July 21st, a developing surface low across the Great Lakes traveled along a stationary boundary draped across the North Country. Surface conditions became increasingly unstable during the afternoon with temperatures in the 80s and dewpoints in the 60s and lower 70s. More importantly, an unseasonably strong mid-atmospheric shortwave and winds aloft tracked across this region as well, which allowed for thunderstorms to develop rapidly, intensify and maintain longevity.
During the afternoon and evening, scattered to numerous thunderstorms developed traveled across northern New York and through Vermont. Several storms strengthened into supercells that produced widespread wind damage to trees, power poles and structures as well as large hail in excess of golf ball size in diameter.
Some of the communities largely affected were Milton, Colchester, Essex, Jericho, Stowe, Brookfield, Chelsea and Rutland. In addition, very heavy localized rains caused some temporary problems in many communities, but did result in washed out roads, culverts in Chelsea.
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 Burlington, VT wrote its last area forecast discussion before the first event at Jul 21, 12:36 PM EST, 1 hour 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BURLINGTON VT 136 PM EDT WED JUL 21 2010 .SYNOPSIS... A STRONG UPPER AIR DISTURBANCE WILL BRING STRONG TO SEVERE THUNDERSTORMS TO THE NORTH COUNTRY THIS AFTERNOON AND EARLY THIS EVENING. SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS... ALONG WITH SOME LOCALLY HEAVY RAINFALL AND HAIL. SOME SHOWERS ARE POSSIBLE ACROSS THE ADIRONDACKS AND GREEN MOUNTAINS THURSDAY AFTERNOON. A RIDGE OF HIGH PRESSURE WILL BE OVER THE NORTH COUNTRY THURSDAY NIGHT THROUGH EARLY FRIDAY. A WARM FRONT WILL APPROACH THE REGION FRIDAY NIGHT AND SATURDAY. A COLD FRONT WILL THEN MOVE THROUGH THE REGION SATURDAY NIGHT AND EARLY SUNDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... AS OF 1138 AM EDT WEDNESDAY...CONFIDENCE CONTINUES THAT WE WILL SEE STRONG/SEVERE THUNDERSTORMS DEVELOPING THIS AFTERNOON ACROSS THE REGION. JUST A QUICK NOTE REGARDING THE SEVERE THUNDERSTORM WATCH JUST ISSUED AND WILL BE IN EFFECT UNTIL 8PM. NO CHANGE THE THE FORECAST, BUT REISSUED TEXT PRODUCTS TO INCLUDE WATCH HEADLINE. SOME CONVECTION STARTING TO SHOW UP ACROSS NORTHERN NEW YORK. SATELLITE IMAGERY SHOWING CU GETTING QUITE BUBBLY AND WITH NO REAL CAP IN PLACE TO SPEAK OF, THINGS SHOULD BE FIRING UP HERE BY 1PM. PREVIOUS DISCUSSION BELOW... HAVE DONE A MINOR UPDATE TO FORECAST TO ADD IN POTENTIAL FOR DAMAGING WIND GUSTS AND LARGE HAIL. ALSO A FEW TWEAKS TO WEATHER GRIDS BASED ON CURRENT RADAR TRENDS. INTIAL 12Z NAM GUIDANCE NOT SHOWING ANY MAJOR CHANGES. STILL LOOKING LIKE A NUMBER OF THINGS ARE COMING TOGETHER TO PAVE THE WAY FOR A SOLID SEVERE WEATHER EVENT ACROSS THE REGION THIS AFTERNOON INTO THE EARLY EVENING. STRONG SHORTWAVE OVER THE GREAT LAKES REGION IS ALREADY SPARKING SOME STRONG THUNDERSTORMS ACROSS ONTARIO EVEN AT THIS EARLY HOUR. ON THE BOTTOMSIDE OF THAT SHORTWAVE WE'VE GOT A STRENGTHENING MID AND UPPER LEVEL JET THAT WILL BE NOSING INTO THE REGION THIS AFTERNOON. THIS WILL HELP INCREASE THE 0-6KM SHEAR INTO THE 40-50KT RANGE WHICH IS THE SWEET SPOT FOR ORGANIZED CONVECTION. TEMPERATURES WILL BE REACHING THE LOWER TO MID 80S AND WITH DEWPOINTS IN THE MID TO UPPER 60S, WE SHOULD EASILY SEE CAPES UP AROUND 2000J/KG. THUS WE SHOULD SEE ORGANIZED CONVECTION START TO GO HERE BY 1PM. AFTER REVIEW OF 4KM/12KM WRF AND HRRR MODELS, THINK INITIAL CONVECTION WILL FIRE ACROSS THE EASTERN SLOPES OF THE DACKS AND MOVE INTO VERMONT AND INTENSIFY AS THE AFTERNOON PROGRESSES. SHORTLY THERE AFTER, ADDITIONAL CONVECTION WILL MOVE FROM ONTARIO INTO THE SAINT LAWRENCE VALLEY AND PROVIDE A SECOND ROUND OF THUNDERSTORMS TO VERMONT LATE IN THE AFTERNOON INTO THE EVENING. WIND FIELDS SUGGEST STRONG LOW LEVEL TURNING, ESPECIALLY ACROSS EASTERN AND SOUTHERN VERMONT THIS AFTERNOON INTO EARLY EVENING. THIS MAY ALLOW MORE DISCRETE SUPERCELLS TO FORM AND THUS WE CAN'T RULE OUT A TORNADO AS WELL. LAST SPC OUTLOOK DID HIGHLIGHT THAT AREA AS WELL FOR SLIGHLY BIGGER TORNADO RISK. LATEST SPC MESOSCALE DISCUSSION INDICATES THAT THE REGION WILL BE UPGRADED TO A MODERATE RISK AND IT'S QUITE LIKELY WE'LL HAVE SEVERE WEATHER WATCHES IN EFFECT IN THE NEAR FUTURE. HANG ON, IT'S GOING TO BE A BUMPY AFTERNOON AND EARLY EVENING. && .SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/... AS OF 433 AM EDT WEDNESDAY...SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO EARLY THIS EVENING...BEFORE DIMINISHING BY MIDNIGHT. EXPECTING AREAS OF FOG TO DEVELOP ACROSS THE REGION AFTER MIDNIGHT TONIGHT...AS THERE WILL BE A CLOSE SPREAD BETWEEN THE TEMPERATURE AND THE DEW POINT IN THE 60S TONIGHT. EXPECTING MAINLY FAIR WEATHER ON THURSDAY. HOWEVER...BTV 4KM MODEL ALONG WITH THE GFS AND NAM HINT AT SOME SHOWERS DEVELOPING ACROSS THE ADIRONDACKS AND OVER THE GREEN MOUNTAINS AND EASTERN AND NORTHEAST VERMONT THURSDAY AFTERNOON. HAVE GONE WITH SLIGHT CHANCE POPS FOR THURSDAY AFTERNOON. A RIDGE OF HIGH PRESSURE WILL THEN BUILD INTO THE REGION THURSDAY NIGHT... WITH FAIR AND DRY WEATHER EXPECTED. FRIDAY WILL BE A MAINLY DRY AS A WEAK RIDGE OF HIGH PRESSURE WILL BE OVER THE REGION FRIDAY MORNING. A WARM FRONT WILL APPROACH THE REGION LATE IN THE DAY ON FRIDAY. HAVE GONE WITH JUST SLIGHT CHANCE POPS FOR SHOWERS FRIDAY AFTERNOON. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... AS OF 433 AM EDT WEDNESDAY...WARM FRONT TO MOVE ACROSS THE AREA FRIDAY NIGHT BRINGING SHOWERS TO THE AREA. LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT WILL BE SLOW TO APPROACH THE FORECAST AREA ON SATURDAY...AND FINALLY CROSS THE FORECAST AREA SATURDAY NIGHT. UPPER LEVEL TROF WILL FOLLOW ON SUNDAY. HAVE MENTIONED CHANCE FOR SHOWERS AND THUNDERSTORMS THROUGH THIS ENTIRE PERIOD. THEN HAVE A DRY FORECAST FOR THE REST OF THE EXTENDED PORTION AS SURFACE HIGH PRESSURE REMAINS OVER THE REGION THROUGH AT LEAST WEDNESDAY. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... THROUGH 18Z THURSDAY...ONGOING SEVERE WEATHER EVENT WITH THUNDERSTORMS PRODUCING DAMAGING WINDS AND HAIL TO BE SCATTERED ACROSS FORECAST AREA THROUGH 00Z. STORMS SHOULD GENERALLY SUBSIDE AFTER 00-02Z...WITH VFR CONDITIONS. TOWARD MORNING KMPV/KSLK FORECAST IFR TO LIFR AS FOG DEVELOPS. ALSO INTRODUCED SCT012 AT KBTV. WITH RECENT RAINFALL AND WINDS TURNING WEST THROUGH NORTHWEST...EXPECT STRATUS DECK TO DEVELOP OVERNIGHT TOWARD MORNING. OUTLOOK 18Z THURSDAY THROUGH SUNDAY...18Z THU THRU 00Z SAT...VFR UNDER HIGH PRESSURE. 00Z SAT THRU SUNDAY...MAINLY VFR WITH SCT MVFR IN SHOWERS AND THUNDERSTORMS. MONDAY...VFR. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...NONE. NY...NONE. && SYNOPSIS...WGH NEAR TERM...NASH SHORT TERM...WGH LONG TERM...NEILES AVIATION...HANSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BURLINGTON VT 345 AM EDT WED JUL 21 2010 NYZ026>031-034-035-087-VTZ001>012-016>019-220745- NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-EASTERN CLINTON- SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON- WESTERN ESSEX-EASTERN ESSEX-SOUTHWESTERN ST. LAWRENCE-GRAND ISLE- WESTERN FRANKLIN-ORLEANS-ESSEX-WESTERN CHITTENDEN-LAMOILLE-CALEDONIA- WASHINGTON-WESTERN ADDISON-ORANGE-WESTERN RUTLAND-WINDSOR- EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND- 345 AM EDT WED JUL 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL VERMONT...NORTHEAST VERMONT...NORTHWEST VERMONT AND SOUTHERN VERMONT. .DAY ONE...TODAY AND TONIGHT. STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS EVENING. THE PRIMARY THREAT WILL BE STRONG AND POTENTIALLY DAMAGING WIND GUSTS. HAIL AND LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. MORE SHOWERS AND THUNDERSTORMS WILL AFFECT THE REGION FRIDAY NIGHT THROUGH SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON. WGH
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 1055 AM EDT WED JUL 21 2010 NYZ026>031-034-035-087-VTZ001>012-016>019-211700- NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-EASTERN CLINTON- SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON- WESTERN ESSEX-EASTERN ESSEX-SOUTHWESTERN ST. LAWRENCE-GRAND ISLE- WESTERN FRANKLIN-ORLEANS-ESSEX-WESTERN CHITTENDEN-LAMOILLE- CALEDONIA-WASHINGTON-WESTERN ADDISON-ORANGE-WESTERN RUTLAND- WINDSOR-EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON- EASTERN RUTLAND- INCLUDING THE CITIES OF...MASSENA...MALONE...PLATTSBURGH... STAR LAKE...SARANAC LAKE...TUPPER LAKE...DANNEMORA... LAKE PLACID...PORT HENRY...TICONDEROGA...OGDENSBURG...POTSDAM... GOUVERNEUR...ALBURGH...SOUTH HERO...ST. ALBANS...NEWPORT... ISLAND POND...BURLINGTON...JOHNSON...STOWE...ST. JOHNSBURY... MONTPELIER...MIDDLEBURY...VERGENNES...BRADFORD...RANDOLPH... RUTLAND...SPRINGFIELD...WHITE RIVER JUNCTION...ENOSBURG FALLS... RICHFORD...UNDERHILL...BRISTOL...RIPTON...EAST WALLINGFORD... KILLINGTON 1055 AM EDT WED JUL 21 2010 ...STRONG TO SEVERE THUNDERSTORMS EXPECTED ACROSS THE NORTH COUNTRY... THUNDERSTORMS WILL RAPIDLY DEVELOP EARLY THIS AFTERNOON ACROSS VERMONT AND NORTHERN NEW YORK. SOME OF THE THUNDERSTORMS ARE EXPECTED TO BECOME SEVERE, AND WILL BE CAPABLE OF PRODUCING STRONG DAMAGING WIND GUSTS IN EXCESS OF 60 MPH ALONG WITH LARGE HAIL. LOCALLY HEAVY RAINFALL AND FREQUENT LIGHTNING WILL ACCOMPANY ALL THUNDERSTORMS. THUNDERSTORMS WILL COME TO AN END DURING THE EARLY EVENING ACROSS NORTHERN NEW YORK, BUT MAY CONTINUE INTO THE MID-EVENING IN VERMONT. PERSONS ACROSS THE NORTH COUNTRY SHOULD PAY CLOSE ATTENTION FOR RAPIDLY CHANGING WEATHER CONDITIONS AND POSSIBLE SEVERE WEATHER WARNINGS. MOVE INDOORS AT THE FIRST SIGN OF THREATENING WEATHER. IF YOU CAN HEAR THUNDER, YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. NASH
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
1233 PM EDT WED JUL 21 2010
NYZ026-027-029-030-087-211730-
NORTHERN FRANKLIN NY-NORTHERN ST. LAWRENCE NY-
SOUTHEASTERN ST. LAWRENCE NY-SOUTHERN FRANKLIN NY-
SOUTHWESTERN ST. LAWRENCE NY-
1233 PM EDT WED JUL 21 2010
...A STRONG THUNDERSTORM WILL AFFECT FRANKLIN AND ST. LAWRENCE
COUNTIES IN NORTHERN NEW YORK...
AT 1224 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR STOCKHOLM
CENTER IN SAINT LAWRENCE COUNTY...MOVING EAST AT 25 MPH.
WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR MOIRA AROUND 1245 PM...BRUSHTON AROUND 100
PM...CONSTABLE AROUND 115 PM AND BURKE CENTER AROUND 130 PM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM WEDNESDAY
EVENING FOR NORTHERN NEW YORK AND VERMONT.
LAT...LON 4500 7476 4499 7469 4501 7464 4499 7441
4500 7403 4481 7401 4465 7485 4498 7489
4499 7487 4499 7483 4501 7478
MBHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
116 PM EDT WED JUL 21 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0100 PM TSTM WND DMG BANGOR 44.81N 74.40W
07/21/2010 FRANKLIN NY CO-OP OBSERVER
ROOF REPORTED IN ROAD VIA SCANNER REPORT. TIME
APPROXIMATE.
0100 PM TSTM WND DMG MOIRA 44.82N 74.56W
07/21/2010 FRANKLIN NY CO-OP OBSERVER
TREES DOWN VIA SCANNER REPORT
0110 PM HAIL NORTH BANGOR 44.84N 74.40W
07/21/2010 E1.00 INCH FRANKLIN NY TRAINED SPOTTER
0110 PM HAIL BANGOR 44.81N 74.40W
07/21/2010 E0.50 INCH FRANKLIN NY PUBLIC
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
222 PM EDT WED JUL 21 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0221 PM HAIL MORRISONVILLE 44.69N 73.55W
07/21/2010 E0.50 INCH CLINTON NY PUBLIC
0215 PM HAIL CADYVILLE 44.70N 73.63W
07/21/2010 E0.50 INCH CLINTON NY PUBLIC
0212 PM HAIL DANNEMORA 44.72N 73.72W
07/21/2010 E2.00 INCH CLINTON NY PUBLIC
0208 PM HAIL CADYVILLE 44.70N 73.63W
07/21/2010 E0.75 INCH CLINTON NY PUBLIC
0131 PM HAIL MALONE 44.85N 74.29W
07/21/2010 E0.75 INCH FRANKLIN NY PUBLIC
0130 PM HEAVY RAIN WHIPPLEVILLE 44.81N 74.26W
07/21/2010 M1.00 INCH FRANKLIN NY CO-OP OBSERVER
RAINFALL OF 0.95 INCHES IN ABOUT 30 MINUTES
0118 PM HAIL MALONE 44.85N 74.29W
07/21/2010 E0.25 INCH FRANKLIN NY PUBLIC
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
226 PM EDT WED JUL 21 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0210 PM HAIL DANNEMORA 44.72N 73.72W
07/21/2010 E0.50 INCH CLINTON NY PUBLIC
0210 PM TSTM WND DMG DANNEMORA 44.72N 73.72W
07/21/2010 CLINTON NY PUBLIC
TREE DOWN ON COUNTY ROUTE 26
&&The Burlington radar (KCXX), 19 km away, was scanning. The volume nearest the first event began at 18:41 UTC.
26 hail, 21 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Several reports of quarter size diameter hail across South Hero, including South Street where some damage to apple orchards and other crops.
Half-dollar size hail reported in several locations across Milton. Some minor crop damage to corn and other vegetable crops.
Several large branches/limbs downed by thunderstorm winds near the intersection of Routes 7 and 127. Additional scattered branches along Route 7.
Several large branches/limbs downed by thunderstorm winds near the intersection of Routes 7 and 127. Additional reports of downed trees, branches and limbs across Colchester Village and along Route 7 to Chimney Corners.
Nickel to quarter size hail reported from Chimney Corners along Route 7 into Colchester Village. Some local crop damage.
Dime size hail reported in Colchester Village.
Numerous trees, large branches and power lines down across Essex due to thunderstorm winds, including Chelsea, Sandhill, Old Stage roads.
Several reports of down trees and branches throughout Essex Center, including some of these roads...Sandhill, Route 15, Old Stage and Chelsea.
Nickel to quarter size hail reported in Essex Center toward Chapin Orchards. Moderate damage to apple and other crops.
Several large trees on houses in Jericho Center.
Several large trees on houses in Jericho Center, as well as numerous reports of trees and power lines as well as other structural damage throughout Jericho.
Quarter size hail reported in Lincoln.
Trees and limbs down across Lincoln.
Nickel to quarter size hail reported.
Nickel to quarter size hail reported along Route 100 between Stowe Village and Morrisville. Wind damage reported as well.
Numerous reports of trees, large branches and power lines down along Route 100 between Stowe Village and Morrisville, including adjacent roads such as Stage Coach. Some slight structural damage to homes, barns, as well as to corn fields and other crops.
Half dollar to golf ball size hail reported within Sugarbush Village.
Nickel to quarter size hail caused damage to corn and other crops nearing harvest.
A few trees and large branches down across Hardwick, including Mackville road.
Larger than golf ball size hail reported as well as hundreds of downed trees and power lines along East Hill and Chelsea roads.
Hundreds of 40-50 foot pines, large mature maples and other trees snapped or uprooted in a northwest to southeast direction along East Hill and Chelsea roads along the Brookfield/Chelsea town line centered off Woods road. More than two dozen utility poles down as well as structural damage to several homes. Microburst and straight-line wind damage with winds estimated 80 to 90 mph was determined by NWS survey.
Half dollar size hail reported near Bristol pond.
Scattered, but numerous tree damage in the form of uprooted and snapped trees including 50-75 foot Maples across western Chelsea along Brook, Williamstown and Bobbinshop roads. Some structural damage to a few houses and destroyed newly constructed sugar house and damaged sugaring equipment.
Half dollar size hail reported.
Nickel size hail and trees reported down along Monkton road.
Scattered tree damage throughout Chelsea Village with a metal sheeting roof removed from house on the corner of Route 110 and Upper Village/Corinth road.
Quarter size hail reported in Danville. Slight damage to corn and other crops.
Nickel size hail reported.
Scattered trees down in Vershire and along Route 113 toward Chelsea and Fairlee.
Half to one inch diameter hail reported.
Quarter size hail as well as hundreds of trees downed by thunderstorm winds.
Numerous trees down between Strafford and Vershire along Route 113 and numerous backroads.
Numerous reports of trees down throughout Corinth, including small microburst of hundreds of trees uprooted or snapped in Coop Observer backyard.
Several trees down by thunderstorm winds.
Thunderstorm winds damaged a farm along Route 5, including flattening one barn and severely damaging others.
Trees and power lines down along and near Goshen and Ripton roads.
Nickel to quarter size hail reported across Bradford.
Quarter size hail reported.
Light accumulation of nickle to quarter size hail from second storm within an hour.
Quarter size hail reported.
The second in a series of severe thunderstorms with torrential rains washed out several culverts, lower portions of Kennedy Drive and partial shoulder washouts along Upper Village road.
Dime, quarter and up to half-dollar size hail reported.
Dime size hail reported.
Quarter size hail reported.
Trees down by thunderstorm winds.
Dime to penny size hail reported.
Trees and power lines down across Rutland, including Rutland Country Club.
Tree fallen and damaged a mobile home.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Vermont in 2010Every state in 2010This day in weather historyWarnings in Vermont, July 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: 237935, 237936, 238035, 238040, 237938, 237940, 238037, 238043, 237948, 238038, 238044, 237944, 238053, 237949, 237950, 238047, 238067, 237951, 238048, 237957, 238049, 237966, 238057, 237968, 237971, 238058, 237970, 238070, 238052, 238069, 237954, 238056, 238074, 238050, 238075, 238059, 237955, 237960, 237962, 237964, and more.