Flood, Grand Isle
- When
- May 1, 12:00 AM EST to May 9, 6:30 PM EST
- Where
- Grand Isle forecast zone
- Property damage
- $5,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.797, -73.295 (the zone’s center; the record gives no point)
Snow melt and associated runoff due to the spring melt continued to result in flooding along the shores of Lake Champlain into May, 2001. Lake levels remained above flood stage (100 feet) through May 9th, with generally minor flooding reported.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Snow melt and associated runoff due to the spring melt continued to result in flooding along the shores of Lake Champlain into May, 2001. Lake levels remained above flood stage (100 feet) through May 9th, with generally minor flooding reported.
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 Apr 30, 11:45 PM EST, 15 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BURLINGTON VT
1245 AM EDT TUE MAY 1 2001
...IF YOU LIKED YDY...YOU/LL LOVE TDY AND TMRW...
BIG PIX: ULVL RDG ACRS WRN FA ERLY THIS MRNG AND WL MV ACRS FA TDY
AND STRENGTHEN WITH TIME MID-WK. THERE ARE A FEW S/W THAT WL BE
STRETCHED ACRS TO OUR N OR EMBEDDED WITHIN ULVL RDG FLOW BUT SHLD
ONLY BRG ABT SOME CLDS AT WORST.
ULVL LOW MVG OVR RDG WL DAMPEN RDG AND LAY OUT A CD FNT ACRS ST
LWRNC VLY LATE THU. SFC HIGH PRS FM CENT CANADA WL DROP ACRS GRT
LAKES LATE WEEK INTO WKND TO BRG ABT SUNNY...DRY BUT COOLER WKND.
DETAILS: CRNT IR SAT IMAGERY SHWS SOME MID CLDS MVG ACRS SRN QUEBEC/
NRN VT ATTM AND SHLD BE SOUTH OF MUCH OF THE FA BY MRNG. OTHERWISE...
SUNNY SKIES WL DOMINATE AND MAX TMPS CUD APPRCH RECORD LVLS TDY AT
KBTV.
RECORD TEMPS: BTV MPV 1V4 MSS
T 5/1 83 86 83 86
W 5/2 85 76 86 79
H 5/3 80 81 85 82
FOLLOW PRVS FCST OF SEPARATING OUT GRAND ISLE CTY AS WELL AS PUT
COOLER TMPS ALG LAKE CHAMPLAIN IN LAKESHORE ZONES DUE TO COLD
WATER TMPS IN 30S.
WEAK ULVL S/W EMBEDDED IN ULVL RDG FLOW CUD BRG ABT SOME MID CLDS
WED BUT BERMUDA SFC HIGH WL CONT TO BRG WRMR TMPS WED AND THEN
THU DEPENDS ON CLDS AHD OF SFC CD FNT POISED FOR LATE THU/THU NGT.
BASICALLY...PRVS FCST IN LINE WITH PRVS/CRNT THINKING AND ONLY
TWEAKING MAY BE TO RAISE MAX TMPS DEG/TWO IN SOME ZONES.
HYDRO: LAKE CHAMPLAIN LAKE LEVELS WERE RECEDING AND WL CONT FOR
THR REST OF THIS WEEK. PLENTY OF SS AND SUMMER-LIKE TMPS WL
ACCELERATE THE SNOW MELT WHERE SNOW REMAINS IN THE HIGHEST
ELEVATIONS. BY THE END OF THIS WARM SPELL...MOST IF NOT ALL SNOW-
COVER SHLD BE GONE XCPT SUMMITS.
FIRE WX: SOME SPRINKLES OCCURRED YDY MRNG IN PTNS OF FA...OTHERWISE
DRY CONDS CONT (SEE CLIMO SECTION BELOW). NO MSRBL RAINFALL AT KBTV
AND MOST OF FA SINCE 4/22. IN FACT...TWO DAYS OF MSRBL SINCE 4/12 AT
KBTV (4/21 - 0.16, 4/22 - 0.04) AND 84 PCT OF PSBL SS SINCE 4/12
FCSTD RH FOR PEAK AFTN HRS (3-4 HRS) WL BE <30 PCT TDY AND JUST ABV
30 PCT WED...LACK OF PCPN >5 DAYS BUT WNDS WL BE GNRLLY LGT.
AGAIN...MAIN THREAT IS GRASS/BRUSH FIRES...SEEK PROPER PERMITS BEFORE
BURNING.
CLIMO: APRIL 2001 FINISHED 6TH DRIEST ALL-TIME
0.60 INCHES IN 1896
0.70 INCHES IN 1941
0.73 INCHES IN 1999/1915
0.83 INCHES IN 1911
0.85 INCHES IN 2001 ***
0.86 INCHES IN 1894
0.91 INCHES IN 1900
0.93 INCHES IN 1966
0.95 INCHES IN 1986
THE ANNUAL SUMMER MIDNIGHT CURSE CONTINUES. SINCE WORKING AT KBTV
(8 YRS)...SUNNIEST...DRIEST...WARMEST WX BTWN MAY 1 - LABOR DAY HAS
BEEN DURING MY MIDSHIFTS. THIS CRNT STRETCH ENDS FRI AM...ANY ???
BY THE WAY...MY NXT MIDNIGHT STRETCH IS MEMORIAL DAY WEEKEND.
WORK ZONES BY 2 AM.
.BTV...FLOOD WARNING CONTINUES FOR LAKE CHAMPLAIN.
SLWThe national radar mosaic for the moment the first event began.
5 flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Vermont in 2001Every state in 2001This day in weather historyWarnings in Vermont, May 2001
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: 5250604, 5250605, 5250606, 5250607, 5250608.