Isolated severe thunderstorms impacted Macomb and St. Clair counties.
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 DTX wrote it up.
Isolated severe thunderstorms impacted Macomb and St. Clair counties.
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 Detroit, MI wrote its last area forecast discussion before the first event at Sep 1, 1:44 PM EST, 3 hours 22 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 244 PM EDT MON SEP 1 2014 .SHORT TERM...THIS EVENING AND TONIGHT 18Z SPECIAL CONFIRMS THE WARMER COLUMN DEPICTED BY THE RAP AND THEN SOME. 900MB INVERSION IS QUITE A BIT MORE ROBUST THAN DEPICTED BY THE GUIDANCE AS IS THE 600MB CAP. THUS, EVEN THE MOST TAME DEPICTIONS OF CONVECTION IN THE NWP ARE LIKELY TOO AGGRESSIVE AND CONCERNS REGARDING CAPPING NOTED IN THE MORNING UPDATE ARE CONFIRMED. UPDRAFTS WILL STRUGGLE ACROSS MOST OF THE CWA WITH THE EXCEPTION OF LOCATIONS NORTH OF I-69 AND ESPECIALLY WEST OF US-23 WHERE MID-LEVEL COOLING AND FORCING WILL BE MAXIMIZED. WITH THE LINE ALREADY MARCHING TOWARD THIS AREA, EXPECT THAT THE ABUNDANCE OF MID-LEVEL DRY AIR AND UNIDIRECTIONAL FLOW ABOVE 1.5KM WILL SUPPORT BOWING SEGMENTS CARRYING A LOW-END SEVERE WIND THREAT. IN ADDITION, ISOLATED TORNADO THREAT OUTLINED IN THE EARLIER UPDATE REMAINS IN TACT. FOR REMAINING AREAS, EXPECT NOTHING MORE THAN A GUST TO 40 MPH. IN ADDITION, BACKED OFF ON POPS AS EARLIER SUSPICIONS REGARDING COVERAGE POTENTIAL STILL LOOM. A WEAK COLD FRONT WILL SAG THROUGH THE AREA TONIGHT. FRONTAL INVERSION WILL PROMOTE EXPANSION OF STRATUS LATE TONIGHT, BUT EXPECT THAT MOISTURE WILL BE TOO SHALLOW AND FORCING TOO WEAK TO SUPPORT ANY LEGITIMATE COVERAGE OR INTENSITY OF SHOWERS. WITH UPPER SUPPORT IN THE FORM OF A SHEARING SHORTWAVE NOT SCHEDULED TO ARRIVE UNTIL TUESDAY MORNING PER 12Z GUIDANCE, AND MAINLY SOUTH OF THE AREA AT THAT, NOTHING MORE THAN A CHC POP IS WARRANTED ATTM. && .LONG TERM...TUESDAY THROUGH NEXT MONDAY A COLD FRONT WILL BE SOUTHEAST OF THE CWA TO START OUT TUESDAY MORNING. HOWEVER A MID LEVEL SHORTWAVE RIDING NORTHEAST ALONG THE FRONT WILL BRING THE CHANCE FOR SHOWERS AND THUNDERSTORMS TO THE AREA TUESDAY MORNING. AFTER THE SHORTWAVE TRACKS OFF TO THE NORTHEAST SIGNIFICANT DRYING WILL TAKE PLACE AS A SLUG OF 30 PERCENT RELATIVE HUMIDITY AT 700 MB ADVECTS IN FROM THE WEST...ENDING RAIN CHANCES QUICKLY EARLY TUESDAY AFTERNOON. WHILE THERE IS STILL SOME UNCERTAINTY REGARDING HOW FAR WEST THE RAIN WILL FALL GIVEN THE PUSH OF DRY AIR ADVECTING IN...THE LATEST SUITE OF MODELS HAS THE DRIER AIR PUSHING IN A BIT SOONER THAN THE 00Z RUNS. THEREFORE WILL NUDGE THE FORECAST A BIT DRIER TUESDAY AFTERNOON FROM THE PREVIOUS FORECAST. DESPITE THE PASSAGE OF A COLD FRONT THERE ISN'T A LARGE PUSH OF COLD AIR ASSOCIATED WITH IT...MEANING DAYTIME HIGHS ARE EXPECTED TO GET AROUND 80 TUESDAY AFTERNOON BEHIND THE FRONT. RIDGING WILL KEEP THE FORECAST DRY THROUGH WEDNESDAY AS REBOUNDING HEIGHTS ALLOW DAYTIME HIGHS TO GET BACK INTO THE LOWER 80S BY WEDNESDAY AFTERNOON. MOISTURE SURGE FROM THE GULF OF MEXICO COMMENCES ON THURSDAY AS A LOW CHANCE FOR CONVECTION EXISTS WITHIN THE WARM SECTOR OF A REGION-WIDE LOW PRESSURE SYSTEM. BEST CHANCE FOR THUNDERSTORMS /POSSIBLY SEVERE/ WILL BE FRIDAY AS WARM AND MOIST AIRMASS (85/70 T/TD) IS IN PLACE ALONG WITH FORECASTED CAPE OF 3000 J/KG. BULK SHEAR INCREASES TO NEAR 30 KT IN THE 1-6 KM LAYER AS WELL. THESE INGREDIENTS WILL BE IN PLACE AS A RAGGED COLD FRONT CROSSES THE STATE. THIS BRINGS A TRIPLE THREAT OF SEVERE WEATHER WITH WIND...HAIL...AND ISOLATED TORNADOES ALL POSSIBLE && .MARINE... SHOWERS AND THUNDERSTORMS WILL TRACK THROUGH THE CENTRAL GREAT LAKES TONIGHT AS A COLD FRONT MOVES THROUGH LAKE HURON AND LOWER MICHIGAN. SOME OF THESE STORMS MAY BE SEVERE...MAINLY ACROSS THE NORTHERN PORTION OF LAKE HURON. HIGH PRESSURE WILL BUILD INTO THE REGION BEHIND THIS FRONT ON TUESDAY...WHICH WILL REMAIN IN CONTROL OF THE WEATHER THROUGH THURSDAY...PROVIDING FAVORABLE BOATING CONDITIONS. && .AVIATION...ISSUED 114 PM EDT MON SEP 1 2014 //DISCUSSION... LOW STRATUS CONTINUES TO MIX UP TO LOW VFR DIURNALLY FORCED CU. EXPECT THIS TREND TO CONTINUE THROUGH THE NEAR TERM. ATTENTION THEN TURNS TOWARD TSTORM CHANCES THIS AFTERNOON. CAPPING WILL LIMIT POTENTIAL SOUTH OF KPTK SO TSHRA WAS REMOVED FOR THESE LOCATIONS AS THE PROBABILITY IS NOW TOO LOW TO WARRANT A MENTION IN THE TAFS. EXPECTATIONS REMAIN UNCHANGED FROM KFNT NORTH UPSTREAM ACTIVITY IS MORE CERTAIN TO MOVE IN THIS AFTERNOON. LOW CLOUDS AND PERHAPS A VISIBILITY RESTRICTION WILL BE POSSIBLE BEHIND THE FRONT LATE TONIGHT BUT ONCE AGAIN EXPECT PRECIP POTENTIAL TO REMAIN RATHER LOW WITH THE BULK OF 12Z GUIDANCE HOLDING ACTIVITY SOUTH OF THE MICHIGAN BORDER. FOR DTW...ALTHOUGH CONFIDENCE IN TSTORMS HAS DECREASED...IT AT LEAST REMAINS PLAUSIBLE. THE BEST TIME FOR A THUNDERSTORM TO IMPACT THE AIRPORT WILL BE 21Z-23Z THIS AFTERNOON. CONFIDENCE IN SHOWER COVERAGE TOWARD MORNING IS ALSO QUITE LOW. ELECTED TO ELIMINATE SPECIFIC MENTION FROM THE TAF UNTIL POTENTIALLY IMPACTED AREA BECOMES MORE CLEAR. //DTW THRESHOLD THREATS... * MEDIUM CONFIDENCE IN CEILINGS BELOW 5KFT THIS AFTERNOON AND LATE TONIGHT * LOW CONFIDENCE THAT A TSTORM WILL IMPACT KDTW && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. LAKE HURON...NONE. LAKE ST CLAIR...NONE. MI WATERS OF LAKE ERIE...NONE. && SHORT TERM...JVC LONG TERM....KURIMSKI/MM MARINE.......KURIMSKI AVIATION.....JVC YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 257 PM EDT MON SEP 1 2014 MIZ047>049-053>055-060>063-021900- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR- 257 PM EDT MON SEP 1 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE LIKELY THIS EVENING. THERE IS A SLIGHT CHANCE THAT THESE STORMS WILL BE SEVERE WITH DAMAGING WIND TO 60 MPH...HAIL TO 1 INCH IN DIAMETER...AND AN ISOLATED TORNADO. STORM MOTION WILL BE WEST TO EAST AT 40 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AND THEN AGAIN THURSDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED DURING THE AFTERNOON AND EVENING. LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-021900- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT BEYOND 5 NM OFF SHORE- LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE- LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE- OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI- PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE- LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE- LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE- 257 PM EDT MON SEP 1 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE LIKELY THIS EVENING. THERE IS A SLIGHT CHANCE THAT THESE STORMS WILL BE SEVERE WITH DAMAGING WIND TO 60 MPH...HAIL TO 1 INCH IN DIAMETER...AND AN ISOLATED TORNADO. STORM MOTION WILL BE WEST TO EAST AT 40 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AND THEN AGAIN THURSDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. MIZ068>070-075-076-082-083-021900- LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 257 PM EDT MON SEP 1 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A CHANCE OF THUNDERSTORMS THIS EVENING. THESE STORMS ARE NOT EXPECTED TO BE SEVERE BUT MAY PRODUCE HEAVY DOWNPOURS AND WIND GUSTS TO 40 MPH. STORM MOTION WILL BE WEST TO EAST AT 40 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AND THEN AGAIN THURSDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 442 PM EDT MON SEP 1 2014 MIZ049-054-055-012130- HURON MI-SANILAC MI-TUSCOLA MI- 442 PM EDT MON SEP 1 2014 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN HURON...NORTHEASTERN TUSCOLA AND NORTHERN SANILAC COUNTIES UNTIL 530 PM EDT... AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM KINDE TO CARO...AND MOVING NORTHEAST AT 40 MPH. WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. THESE STORMS WILL BE NEAR... WILMOT...NEW GREENLEAF...DEFORD AND BAD AXE AROUND 450 PM EDT. HURON CITY AND DECKER AROUND 455 PM EDT. SNOVER...JUHL...VERONA...REDMAN AND RAPSON AROUND 500 PM EDT. ELMER AND UBLY AROUND 505 PM EDT. SANDUSKY AROUND 510 PM EDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. KURIMSKI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 454 PM EDT MON SEP 1 2014 MIZ061-062-068-069-012145- GENESEE MI-LAPEER MI-LIVINGSTON MI-OAKLAND MI- 454 PM EDT MON SEP 1 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN OAKLAND...NORTHERN LIVINGSTON...WESTERN LAPEER AND GENESEE COUNTIES UNTIL 545 PM EDT... AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FLUSHING TO 6 MILES NORTH OF HARTLAND TO 5 MILES SOUTHWEST OF HOWELL...AND MOVING NORTHEAST AT 35 MPH. WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. THESE STORMS WILL BE NEAR... MOUNT MORRIS...TYRONE TOWNSHIP...FLINT AND FENTON AROUND 500 PM EDT. GRAND BLANC...GENESEE AND BURTON AROUND 505 PM EDT. HOLLY AROUND 510 PM EDT. OTISVILLE...HOLLY STATE RECREATION AREA...ATLAS...HARTLAND AND DAVISON AROUND 515 PM EDT. ROSE CENTER AROUND 520 PM EDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. KURIMSKI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 503 PM EDT MON SEP 1 2014 MIZ049-054-055-062-012145- HURON MI-LAPEER MI-SANILAC MI-TUSCOLA MI- 503 PM EDT MON SEP 1 2014 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HURON...SOUTHEASTERN TUSCOLA...NORTHERN SANILAC AND NORTHWESTERN LAPEER COUNTIES UNTIL 545 PM EDT... AT 501 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES WEST OF ARGYLE TO MAYVILLE...AND MOVING NORTHEAST AT 45 MPH. WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. THESE STORMS WILL BE NEAR... DECKER AND CLIFFORD AROUND 510 PM EDT. ARGYLE AROUND 515 PM EDT. MINDEN...SNOVER AND MARLETTE AROUND 520 PM EDT. RUTH AND PALMS AROUND 525 PM EDT. ELMER AND JUHL AROUND 530 PM EDT. WHITE ROCK AROUND 535 PM EDT. MCGREGOR...SANDUSKY AND FORESTVILLE AROUND 540 PM EDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. KURIMSKI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 507 PM EDT MON SEP 1 2014 MIZ061-062-068-069-012200- GENESEE MI-LAPEER MI-LIVINGSTON MI-OAKLAND MI- 507 PM EDT MON SEP 1 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN OAKLAND...EASTERN LIVINGSTON...SOUTHERN LAPEER AND SOUTHERN GENESEE COUNTIES UNTIL 600 PM EDT... AT 506 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FLINT TO HOLLY TO 5 MILES EAST OF HOWELL...AND MOVING EAST AT 35 MPH. WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. THESE STORMS WILL BE NEAR... ROSE CENTER AND HOLLY STATE RECREATION AREA AROUND 515 PM EDT. DAVISON...ATLAS...GOODRICH AND DAVISBURG AROUND 520 PM EDT. ORTONVILLE...MILFORD AND HIGHLAND AROUND 525 PM EDT. ELBA AND HADLEY AROUND 530 PM EDT. WHITE LAKE AND CLARKSTON AROUND 535 PM EDT. LAPEER AROUND 540 PM EDT. THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. KURIMSKI
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 533 PM EDT MON SEP 1 2014 MIZ061>063-069-070-012215- GENESEE MI-LAPEER MI-MACOMB MI-OAKLAND MI-ST. CLAIR MI- 533 PM EDT MON SEP 1 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ST. CLAIR...NORTHERN MACOMB...NORTHERN OAKLAND...SOUTHERN LAPEER AND EASTERN GENESEE COUNTIES UNTIL 615 PM EDT... AT 531 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HADLEY TO CLARKSTON TO MILFORD...AND MOVING EAST AT 35 MPH. WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN. THESE STORMS WILL BE NEAR... LAPEER...WHITE LAKE AND METAMORA AROUND 540 PM EDT. OXFORD AND LAKE ORION AROUND 545 PM EDT. THORNVILLE AND WATERFORD AROUND 550 PM EDT. LUM...SYLVAN LAKE...LAKEVILLE...LEONARD...DRYDEN AND ATTICA AROUND 555 PM EDT. PONTIAC AROUND 600 PM EDT. THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. KURIMSKI
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
551 PM EDT MON SEP 01 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM HEAVY RAIN ANN ARBOR 42.28N 83.73W
09/01/2014 M0.78 INCH WASHTENAW MI TRAINED SPOTTER
30 MINUTE TOTAL.
&&
MOSTEIKOThe Detroit radar (KDTX), 43 km away, was scanning. The volume nearest the first event began at 22:08 UTC.
2 thunderstorm wind. Local standard time, as filed.
Large trees, branches, and powerlines reported down.
Several large trees and tree limbs blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2014Every state in 2014This day in weather historyWarnings in Michigan, September 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: 542181, 542180.