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"1948-03-24T00:00:00Z", "stage": 24.52, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1947-04-14T00:00:00Z", "stage": 20.3, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1946-03-11T00:00:00Z", "stage": 18, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-03-23T00:00:00Z", "stage": 20.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-03-26T00:00:00Z", "stage": 18.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-04-30T00:00:00Z", "stage": 17.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1940-05-06T00:00:00Z", "stage": 23.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1939-04-25T00:00:00Z", "stage": 21.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-09-23T00:00:00Z", "stage": 35.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1937-05-17T00:00:00Z", "stage": 21.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1936-03-21T00:00:00Z", "stage": 37.6, "flow": 260000, "preliminary": "R", "olddatum": false }, { "occurredTime": "1935-01-12T00:00:00Z", "stage": 20.7, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1934-04-14T00:00:00Z", "stage": 23.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1933-04-21T00:00:00Z", "stage": 26, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1932-04-14T00:00:00Z", "stage": 20.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1931-04-13T00:00:00Z", "stage": 17.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1929-03-25T00:00:00Z", "stage": 18.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1928-04-10T00:00:00Z", "stage": 18.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": 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18.3, "flow": 82000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1845-02-25T00:00:00Z", "stage": 18.5, "flow": 83000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1843-12-25T00:00:00Z", "stage": 19, "flow": 86000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1843-03-29T00:00:00Z", "stage": 26.7, "flow": 157000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1692-01-03T00:00:00Z", "stage": 25.7, "flow": 146000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1683-07-01T00:00:00Z", "stage": 25.5, "flow": 145000, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 32, "statement": "This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to the river mouth at Old Saybrook will experience significant flooding outside of levees and flood protection walls." }, { "stage": 30, "statement": "This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to Old Saybrook will experience significant flooding outside of levees and flood protection walls." }, { "stage": 28, "statement": "This is a serious flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Haddam and Portland will experience significant flooding outside of levees and flood protection walls. Further downstream through Cromwell, Middletown and further downstream this is a serious potentially life threatening flood." }, { "stage": 26, "statement": "Moderate flooding will occur along a large reach of the river from Windsor Locks and East Windsor, south through Haddam and Portland. Many river roads will be closed and some localized evacuations may be required. Follow the directions of local emergency management officials. Further downstream significant flooding will continue to impact low lying homes and businesses from Wethersfield south through Middletown and Middle Haddam, downstream to the mouth of the river in Old Saybrook." }, { "stage": 24, "statement": "Flooding affects some residential areas below Hartford through Rocky Hill. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Further downstream major river flooding will impact towns along the Connecticut River from Middletown and Portland downstream through Chester and Essex. Many roads near the river will be flooded. Some local evacuations may be needed." }, { "stage": 23, "statement": "Flooding affects some residential areas below Hartford through Rocky Hill, including some roadways. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Know alternate routes for travel in your location should roads along the river become flooded and impassable. Further downstream flooding increases through Middletown and Portland to Old Saybrook. Some evacuations of low lying areas may be needed." }, { "stage": 22, "statement": "Flooding affects some residential areas below Hartford through Rocky Hill, including some roadways. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Further downstream flooding will likely result in the evacuation of low lying area along River Road in Cromwell and Meadow Road in Portland. Flooding increases from Middletown and Portland to the river mouth at Old Saybrook." }, { "stage": 21, "statement": "Flooding is expected along the river in portions of Wethersfield, Glastonbury and Rocky Hill. The high waters and swift flows will disrupt some cross river ferry services. Upstream of Hartford flooding will continue to affect portions of Windsor. Immediate river roads may become impassable. Further downstream flooding will likely result in the evacuation of low lying areas along River Road in Cromwell and River Road in Portland. Flooding increases along the river from Middletown to Old Saybrook." }, { "stage": 20, "statement": "Flooding is expected along the river in portions of Wethersfield, Glastonbury, Rocky Hill and Cromwell. The high waters and swift flows will disrupt some cross river ferry services. Upstream of Hartford, flooding will continue to affect portions of Windsor. Immediate river roads may become impassable in all of these communities. Further downstream flooding will continue to overspread sections of Portland, Middletown as well as Chester. " }, { "stage": 19, "statement": "Flooding of low lying areas below Hartford is expected, especially in areas that are outside of levee protection. Flooding also affects low lying areas upstream of Hartford, including a portion of Windsor where the Farmington River empties into the Connecticut River. Further downstream flooding closes most of Meadow Road, Route 17A, in Portland. Flooding impacts the Middletown Marina and Meadow Farms. In Cromwell, portions of River Road will be closed. Flooding continues along the river through Essex." }, { "stage": 18, "statement": "Flooding of low lying areas below Hartford is expected, especially in areas that are outside of levee protection. Flooding also affects low lying areas upstream of Hartford, including a portion of Windsor where the Farmington River empties into the Connecticut River. Further downstream flooding is expected in low lying sections along the Connecticut River from Wethersfield and Glastonbury downstream through Cromwell, Middletown and Portland. Boating interests should prepare for swift river flows." }, { "stage": 17, "statement": "Lowland flooding is expected along the Connecticut River from Hartford through Wethersfield and Glastonbury, primarily outside of levee protection. This will affect several riverside roadways as well as several park and recreational facilities. Further downstream flooding is expected in low lying sections along the Connecticut River from Wethersfield and Glastonbury downstream through Cromwell, Middletown and Portland." }, { "stage": 16, "statement": "Minor flooding is expected in several low lying areas outside levee protection in Hartford, as well as downstream through Wethersfield and Glastonbury. Further downstream flooding is likely in the vicinity of Meadow Road, Route 17A, in the Gildersleeve section of Portland. A portion of this roadway will likely be closed. This includes the Exchange Club of Portland Fairgrounds. Boating interests should prepare for a period of swift river flows during this period." }, { "stage": 14, "statement": "Recreational boaters may need to secure their boats as the river elevation exceeds some docks. Swift river flows will also cause increasingly difficult sailing conditions." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/HFDC3.SSTG.prob.weekint.gif", "flow": "", "volume": "" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/HFDC3.SSTG.exceed.90day.gif", "flow": "", "volume": "" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/HFDC3.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/hfdc3_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/hfdc3_record.png" }, "photos": [] }, "dataAttribution": [ { "abbrev": "US Geological Survey", "text": "USGS--Water Resources of the United States", "title": "US Geological Survey", "url": "https://waterdata.usgs.gov/nwis" }, { "abbrev": "USGS", "text": "01190070", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/nwis/inventory/?site_no=01190070" } ], "impactsLowWaters": [], "normalThreshold": { "value": 0, "units": "ft" }, "hydronotes": [ { "statement": "Gauge reading affected by ocean tides.", "effective": "0101", "expiration": "1231" }, { "statement": "Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.", "effective": "0101", "expiration": "1231" } ], "datums": { "vertical": { "value": [ { "label": "North American Vertical Datum of 1988", "abbrev": "NAVD88", "description": "A fixed reference for elevations determined by geodetic leveling. The datum was derived from a general adjustment of the first-order terrestrial leveling nets of the United States, Canada, and Mexico. In the adjustment, only the height of the primary tidal bench mark, referenced to the International Great Lakes Datum of 1985 (IGLD 85) local mean sea level height value, at Father Point, Rimouski, Quebec, Canada was held fixed, thus providing minimum constraint. NAVD 88 and IGLD 85 are identical. However, NAVD 88 bench mark values are given in Helmert orthometric height units while IGLD 85 values are in dynamic heights. See International Great Lakes Datum of 1985, National Geodetic Vertical Datum of 1929, and geopotential difference. NAVD 88 should not be used as Mean Sea Level.", "value": -1 }, { "label": "National Geodetic Vertical Datum of 1929", "abbrev": "NGVD29", "description": "A fixed reference adopted as a standard geodetic datum for elevations determined by leveling. The datum was derived for surveys from a general adjustment of the first-order leveling nets of both the United States and Canada. In the adjustment, mean sea level was held fixed as observed at 21 tide stations in the United States and 5 in Canada. The year indicates the time of the general adjustment. A synonym for Sea-level Datum of 1929. The geodetic datum is fixed and does not take into account the changing stands of sea level. Because there are many variables affecting sea level, and because the geodetic datum represents a best fit over a broad area, the relationship between the geodetic datum and local mean sea level is not consistent from one location to another in either time or space. For this reason, the National Geodetic Vertical Datum should not be confused with mean sea level. See North American Vertical Datum of 1988 (NAVD 88). NGVD 29 should not be used as Mean Sea Level. NGVD 29 is no longer supported by NGS.", "value": 0 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "TMVC3", "downstreamLid": "MHDC3", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "3", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }