Flood, New London
- When
- December 16, 10:30 AM EST to 11:30 AM EST
- Where
- New London County, Groton
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 41.333, -72.067
Flood in Connecticut, December 16, 2005
Heavy rain caused the Poquonnock River to overflow its' banks near the intersection of Route 1 and South Road. About 2 feet of water was observed near this intersection.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS OKX wrote it up.
As a low pressure system moved northeast toward the region, rain developed and became heavy at times during early Friday morning, December 16th.Heavy rain caused the Poquonnock River to overflow its' banks near the intersection of Route 1 and South Road. About 2 feet of water was observed near this intersection.
What forecasters said that day
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 New York, NY wrote its last area forecast discussion before the first event at Dec 16, 10:07 AM EST, 23 minutes earlier.
Area forecast discussion, Dec 16, 10:07 AM EST, 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE UPTON NY
1007 AM EST FRI DEC 16 2005
.NEAR TERM...WSW FOR NORTHERN SECTIONS WAS ALLOWED TO EXPIRE AT 14Z
AS MESONET OBS INDICATE TEMPS WERE AOA 32F THROUGHOUT THE CWA AND
RAIN/FREEZING RAIN WAS COMING TO AN END. MESONET OBS OVER FAR
EASTERN LI AND AT LONDON LEDGE LIGHT WERE STILL GUSTING A LITTLE
OVER 40 KT...SO WIND ADVISORY WAS EXTENDED FOR FAR EASTERN COASTAL
SECTIONS UNTIL 12 NOON.
OTHERWISE...SURFACE LOW CENTERED JUST N OF NYC WILL CONTINUE LIFTING
NE THIS MORNING...WITH RAIN OVER CT AND EASTERN LONG ISLAND COMING
TO AN END. CLOUDS OVER PA ARE DRYING UP EAST OF THE MOUNTAINS AND
WILL HAVE A HARD TIME MAKING IT EAST LATER TODAY WITH WESTERLY
DOWNSLOPE LOW LEVEL FLOW...LACK OF MID LEVEL SHORTWAVE AND POSITIVE
H8 THETA-E ADVECTION IN PLACE. HOWEVER...SOME STRATOCU COULD DEVELOP
ATOP LOW LEVEL INVERSION AND WEAKLY CYCLONIC LOW LEVEL FLOW IN
PLACE...SO WILL CALL IT A PARTLY SUNNY AFTERNOON.
TEMPERATURES A BIT OF A PROBLEM AS HIGHS FROM NYC EAST WILL LIKELY
OCCUR THIS MORNING...THEN HOLD STEADY OR FALL A BIT LATE THIS
MORNING INTO THIS AFTERNOON AS WINDS SHIFT TO THE WEST.
&&
.SHORT TERM (TONIGHT THROUGH SUNDAY)...RIDGE WILL BUILD INTO THE
AREA TONIGHT AND REMAIN INTO SUNDAY. ONLY REAL CHANGE TO THE
FORECAST AT THIS TIME WAS TO TEMPERATURES SATURDAY NIGHT INTO SUNDAY
WITH WINDS BECOMING MORE NORTHERLY BRINGING IN SOME COOLER AIR.
LOW MOVING OFF THE SOUTHEASTERN SUNDAY WILL REMAIN FAR ENOUGH SOUTH
TO KEEP AREA DRY...BUT MAY BE MORE CLOUDS INTO THE AREA...HOWEVER NO
CHANGES AT THIS TIME.
&&
.LONG TERM (SUNDAY NIGHT THROUGH THURSDAY)...NO CHANGES TO THE DATA
AT THIS TIME AS HIGH PRESSURE WILL REMAIN OVER THE AREA THROUGH THE
PERIOD.
DRY WX WITH BELOW NORMAL TEMPS IS FORECAST TO CONTINUE AS A LARGE
HIGH PRESSURE SYSTEM DOMINATES. SOUTHERN STREAM REMAINS ACTIVE AND
MEDIUM RANGE FORECAST MODELS SHOW SOME TYPICAL BIASES AS WELL AS
DIFFERENCES IN TIMING AND AMPLITUDE. MODELS ARE IN CLOSE AGREEMENT
ON ONE LOW TAKING SHAPE OVER THE NORTHERN GULF COAST ON SUN AND
MOVING OUT TO SEA WELL SOUTH OF THE AREA SUN NIGHT...BUT ARE NOT AS
CLEAR IN THEIR HANDLING OF A SECOND LOW EITHER LATE MON NIGHT/TUE
PER 12Z GFS...OR A DAY LATER PER SLOWER/MORE AMPLIFIED 12Z ECMWF.
GFS IN PARTICULAR COULD BE SHOWING USUAL BIAS OF OVERDOING THE
STRONG POLAR JET/CONFLUENCE ZONE WHICH WILL BE IN PLACE OVER THE
NORTHEAST AND ADJACENT WESTERN ATLANTIC DURING MUCH OF THIS
TIME...WHICH IN TURN COULD BE SUPPRESSING THESE DEVELOPMENTS TOO FAR
SOUTH.
&&
.AVIATION...RAIN HAS ENDED AT ALL TERMINALS EXCEPT KGON AND IT
SHOULD ONLY PERSIST HERE FOR ABOUT ANOTHER HALF HOUR OR SO.
CONDITIONS WILL RAPIDLY IMPROVE BACK TO VFR AS CENTER OF
LOW...CURRENTLY OVER CENTRAL LONG ISLAND MOVES NORTHEAST. WINDS HAVE
ALREADY SHIFTED TO A DRYING WESTERLY FLOW AT NYC TERMINALS AND THOSE
NORTH AND WEST. CLEARING ALREADY OVER NORTHEAST NJ AND INTO NYC WILL
PROGRESS EASTWARD AND ALL TERMINALS SHOULD RETURN TO VFR BY 18Z
ALTHOUGH GUSTY CONDITIONS WILL CONTINUE ON THE BACKSIDE THROUGH THE
EVENING WITH GOOD CAA.
&&
.MARINE...GALE WARNING REMAINS UP FOR THE OCEAN WATERS TODAY...AND
WAS EXTENDED FOR EASTERN LI SOUND. TIGHT PRESSURE GRADIENT AND LLJ
OF 50-60 KT STILL PRESENT OVER FAR EASTERN WATERS AHEAD OF LOW
PRESSURE JUST N OF NYC. THERE WILL BE A LULL IN THE WINDS INTO LATE
THIS MORNING AS PRES GRADIENT BECOMES WEAK...BUT THEN WESTERLY WINDS
WILL INCREASE...GUSTING TO GALE ON THE OCEAN AND SCA ELSEWHERE.
WINDS WILL DIMINISH TONIGHT. THEREAFTER...HIGH PRESSURE WILL MOVE
INTO THE REGION...PROVIDING FOR RELATIVELY TRANQUIL CONDITIONS ON
THE WATERS.
WILL CONTINUE TO MENTION MINOR COASTAL FLOODING FOR THIS MORNINGS
HIGH TIDES ON WESTERN LONG ISLAND SOUND.
&&
.HYDROLOGY...FLS STILL IN EFFECT UNTIL 11 AM FOR SOME RAPID RESPONSE
STREAMS IN NORTHEAST NJ...RAHWAY AT SPRINGFIELD AND HOHOKUS BROOK.
OTHERWISE RAIN EVENT ESSENTIALLY WINDING DOWN OVER CT AND FAR
EASTERN LI BY MIDDAY...AND THEN DRY THROUGH SUNDAY.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...WIND ADVISORY FOR CTZ012 UNTIL NOON FRIDAY.
NJ...NONE.
NY...WIND ADVISORY FOR NYZ079-081 UNTIL NOON FRIDAY.
MARINE...GALE WARNING FOR ANZ330 UNTIL NOON FRIDAY.
...SMALL CRAFT ADVISORY FOR ANZ330 UNTIL MIDNIGHT SATURDAY.
...SMALL CRAFT ADVISORY FOR ANZ335-338 UNTIL MIDNIGHT SATURDAY.
...GALE WARNING FOR ANZ350-353-355 UNTIL 5 PM FRIDAY.
...SMALL CRAFT ADVISORY FOR ANZ350-353-355 FROM 5 PM FRIDAY TO 1
AM SUNDAY.
&&
MORNING UPDATE...BG/CNJ/ALHazardous weather outlook, Dec 16, 6:52 AM EST, 3 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE UPTON NY 652 AM EST FRI DEC 16 2005 CTZ005-006-NYZ067-068-171100- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-ORANGE-PUTNAM- 652 AM EST FRI DEC 16 2005 ...WINTER STORM WARNING UNTIL 9 AM EST TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN CONNECTICUT AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT FREEZING RAIN CONTINUES TO FALL ACROSS PORTIONS OF THE WARNING AREA. THE RAIN IS EXPECTED TO CHANGE TO PLAIN RAIN BY MID MORNING AS WARMER AIR FLOWS IN. TOTAL ICE ACCUMULATIONS UP TO THREE QUARTERS OF AN INCH ARE POSSIBLE. NO HAZARDOUS WEATHER IS THEN EXPECTED LATER THIS MORNING INTO TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER REPORTS OF ICING THIS MORNING WOULD BE APPRECIATED. CTZ012-NYZ075>081-171100- SOUTHERN NEW LONDON-KINGS (BROOKLYN)-QUEENS-NASSAU- NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK- SOUTHEASTERN SUFFOLK- 652 AM EST FRI DEC 16 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN CONNECTICUT AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT A WIND ADVISORY IS IN EFFECT UNTIL 900 AM FOR WINDS OF 25 TO 35 MILES AN HOUR WITH GUSTS AS HIGH AS 50 MILES AN HOUR...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. CTZ007>011-NJZ002>006-011-NYZ069>074-171100- NORTHERN MIDDLESEX-NORTHERN NEW LONDON-SOUTHERN FAIRFIELD- SOUTHERN NEW HAVEN-SOUTHERN MIDDLESEX-WESTERN PASSAIC-BERGEN- EASTERN PASSAIC-ESSEX-HUDSON-UNION-ROCKLAND-NORTHERN WESTCHESTER- SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX- RICHMOND (STATEN ISLAND)- 652 AM EST FRI DEC 16 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN CONNECTICUT...NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. ANZ350-353-355-171100- MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM- FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM- SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM- 652 AM EST FRI DEC 16 2005 ...GALE WARNING THROUGH 5 PM TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT GALE FORCE WINDS WILL BE ACROSS THE OCEAN WATERS INTO THIS AFTERNOON WITH GUSTS AS HIGH AS 40 KTS THIS MORNING. WITH THE HIGH TIDE CYCLE THIS MORNING MINOR TO LOCALLY MODERATE TIDAL FLOODING WILL BE POSSIBLE. SMALL CRAFT WINDS AND SEAS ARE LIKELY TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SEAS WILL REMAIN AT SMALL CRAFT LEVELS INTO SATURDAY NIGHT. OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. ANZ330-335-338-171100- LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY- LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY- NEW YORK HARBOR- 652 AM EST FRI DEC 16 2005 ...GALE WARNING UNTIL 9 AM TODAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT GALE FORCE WIND GUSTS UP TO 40 KTS ARE POSSIBLE EARLY THIS MORNING. WINDS WILL THEN SUBSIDE TO SMALL CRAFT LEVELS INTO THIS AFTERNOON. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME FOR TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Freezing Fog in Georgia, December 16, 2005
- High Wind and Strong Wind in Massachusetts, December 16, 2005
- Winter Storm in New York, December 16, 2005
- Winter Weather in Vermont, December 16, 2005
- Heavy Snow in New York, December 16, 2005
- Winter Storm in Pennsylvania, December 16, 2005
- Winter Storm in Vermont, December 16, 2005
- Winter Storm in Vermont, December 16, 2005
- Winter Storm in Pennsylvania, December 16, 2005
- Winter Storm in New York, December 16, 2005
- Freezing Fog in North Carolina, December 16, 2005
- Winter Storm in Kansas, December 16 to 17, 2005
More
Every storm in Connecticut in 2005Every state in 2005This day in weather historyWarnings in Connecticut, December 2005
Sources
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: 5482771.