River and Lake Levels - Merrimack River

Ayer High School

More Local Info

Merrimack River - Gauge HVRM3
Haverhill, MA
Lat: 42.77N, Lon: 71.08W

Critical Stages
14' -Action	15' -Flood	18' -Moderate Flood	20' -Major Flood

Latest Observation
Updated: 10:15:00 PM EDT WED MAY 22 2013

Stage:

7.97 ft

Forecast

Forecast not available for this location.

Date EDT	Stage ft
05/22/2013 10:15 pm	7.97
05/22/2013 09:15 pm	6.11
05/22/2013 08:15 pm	4.31
05/22/2013 07:15 pm	3.27
05/22/2013 06:15 pm	3.47
05/22/2013 05:15 pm	3.85
05/22/2013 04:15 pm	4.33
05/22/2013 03:15 pm	4.93
05/22/2013 02:15 pm	5.65
05/22/2013 01:15 pm	6.45
05/22/2013 12:15 pm	7.21
05/22/2013 05:15 am	3.21
05/22/2013 04:15 am	3.63
05/22/2013 03:15 am	4.25
05/22/2013 02:15 am	5.13
05/22/2013 01:15 am	6.09
05/21/2013 11:15 pm	8.05
05/21/2013 10:15 pm	8.07
05/21/2013 09:15 pm	6.69
05/21/2013 08:15 pm	4.95
05/21/2013 07:15 pm	3.47
05/21/2013 06:15 pm	2.57
05/21/2013 05:15 pm	2.83
05/21/2013 04:15 pm	3.19
05/21/2013 03:15 pm	3.61
05/21/2013 02:15 pm	4.17
05/21/2013 01:15 pm	4.87
05/21/2013 11:15 am	6.61
05/21/2013 10:15 am	7.39
05/21/2013 09:15 am	6.67
05/21/2013 08:15 am	5.17

Flood Impacts
31.0	CATASTROPHIC, LIFE THREATENING FLOODING WILL OCCUR FROM HAVERHILL AND MERRIMAC TO AMESBURY AND NEWBURYPORT. FLOODING IS EXECTED TO EXCEED THE FLOOD OF RECORD, FROM MARCH 1936. THE SEAWALL IN DOWNTOWN HAVERHILL WILL BE OVERTOPPED. WIDESPREAD EVACUATIONS ALONG THE RIVER ARE LIKELY. DOCKS AND BOATS, IF NOT REMOVED FROM THE WATER, WILL LIKELY BE DESTROYED. MARINAS WILL BE SEVERELY IMPACTED. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS, AND STAY AWAY FROM THESE FLOODWATERS.
29.0	CATASTROPHIC, LIFE THREATENING FLOODING IS EXPECTED. THIS IS NEAR THE FLOOD OF RECORD, MARCH OF 1936. NUMEROUS EVACUATIONS ARE LIKELY. MAJOR FLOODING OCCURS ALONG THE RIVER FROM HAVERHILL AND MERRIMAC TO THE AMESBURY AND NEWBURYPORT VICINITY. THE HAVERHILL SEAWALL IS EXPECTED TO OVERTOP...STRETCHES OF DOWNTOWN HAVERHILL WILL BE INNUNDATED. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS. MARINAS WILL BE SEVERELY IMPACTED. DOCKS AND BOATS, IF NOT OUT OF THE WATER, WILL LIKELY BE DESTROYED.
26.3	DISASTROUS, LIFE THREATENING FLOODING IS EXPECTED. THE RIVER HAS NOT FLOODED TO THIS LEVEL SINCE 1936. MAJOR FLOODING OCCURS ALONG THE RIVER FROM HAVERHILL AND MERRIMAC TO AMESBURY. NUMEROUS EVFACUATIONS WILL OCCUR. FLOODING IS ALSO EXPECTED ALONG NEWBURYPORT AND SALISBURY COMMUNITIES CLOSEST TO THE RIVER. THE HAVERHILL SEAWALL BEGINS TO OVERTOP, RESULTING IN THE ONSET OF FLOODING IN DOWNTOWN HAVERHILL. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS. DOCKS AND BOATS IN THE WATER WILL LIKELY BE DESTROYED.
25.0	MAJOR FLOODING OCCURS FROM HAVERHILL AND MERRIMAC TO AMESBURY. NEWBURYPORT AND SALISBURY WILL EXPERIENCE FLOODING ALONG ROADWAYS CLOSEST TO THE MERRIMACK RIVER. IN HAVERHILL NUMEROUS EVACUATIONS ARE LIKELY, ESPECIALLY ALONG STRETCHES OF COFFIN AVENUE, OLD FERRY ROAD, WESTERN AVENUE, ORCHARD AVENUE AND RIVER STREET. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS. BOATS, DOCKS AND MARINAS WILL BE SEVERELY IMPACTED.
22.5	MAJOR FLOODING WILL OCCUR FROM HAVERHILL AND MERRIMAC TO AMESBURY. NEWBURYPORT AND SALISBURY WILL EXPERINECE FLOODING ALONG ROADWAYS CLOSEST TO THE RIVER. IN HAVERHILL NUMEROUS EVACUATIONS ARE LIKELY, ESPECIALLY ALONG COFFIN AVENUE, WESTERN AVENUE, ORCHARD AVENUE, OLD FERRY ROAD AND RIVER STREET. FOLLOW THE DIRECTIONS OF LOCAL OFFICIALS. BOATS, DOCKS AND MARINAS WILL BE SEVERELY IMPACTED.
20.0	MAJOR FLOODING IS EXPECTED FROM HAVERHILL TO AMESBURY. THE LOWEST LYING ROADS IN SALISBURY AND NEWBURYPORT WILL ALSO BE AFFECTED. IN HAVERHILL, FLOODWATERS WILL INNUNDATE PORTIONS OF OLD FERRY ROAD, WESTERN AVENUE, COFFIN AVENUE, ORCHARD AVENUE, AND RIVER STREET. MARINAS ALONG THE RIVER WILL LIKELY EXPERIENCE CONSIDERABLE FLOODING. WHILE FLOODWSATERS ARE EXPECTED TO REMAIN ON THE RIVER SIDE OF THE SEA WALL, INNUNDATION MAY OCCUR ON THE LOWEST LEVELS OF BUSINESSES ADJACENT TO THE RIVER.
19.0	FLOODWATERS REACH INTO LOW LYING BUSINESSES AND RESIDENCES ALONG RIVER STREET, WESTERN AVENUE, COFFIN AVENUE AND ORCHARD AVENUE. BACKWATER FLOODING OCCURS NEAR OLD FERRY ROAD AND SLAVIT RIVERSIDE AIRPORT. MARINAS, DOCKS AND BOATS WILL BE IMPACTED. SHOULD EVACUATIONS BE NECESSARY...ACT QUICKLY AND FOLLOW THE DIRECTIONS OF EMERGENCY MANAGEMENT OFFICALS. KNOW YOUR ALTERNATE ROUTES OF TRAVEL SO YOU CAN AVOID FLOODED AREAS.
18.0	FLOODING IS LIKELY IN PARTS OF HAVERHILL...PARTICULARLY IN THE VICINITY OF COFFIN AVENUE. FLOODWATERS MAY SURROUND HOMES IN THIS AREA. SHOULD EVACUATIONS BECOME NECESSARY...ACT QUICKLY AND FOLLOW THE DIRECTIONS OF EMERGENCY MANAGEMENT OFFICIALS. MARINAS, BOATS AND DOCKS WILL BE IMPACTED.
17.5	FLOODING IS LIKELY IN LOW LYING SECTIONS OF HAVERHILL...INCLUDING PORTIONS OF COFFIN AVENUE. SHOULD EVACUATIONS BE NECESSARY...ACT QUICKLY AND FOLLOW THE DIRECTIONS OF EMERGENCY MANAGEMENT OFFICALS. KNOW YOUR ALTERNATE ROUTES OF TRAVEL SO YOU CAN AVOID FLOODED AREAS. MARINAS, BOATS AND DOCKS WILL BE IMPACTED.
16.0	FLOODING IS EXPECTED IN LOW LYING SECTIONS AROUND HAVERHILL. MARINAS NEAR AND DOWNSTREAM OF HAVERHILL SHOULD TAKE ACTION TO PROTECT BOATS AND DOCKS DUE TO THE INCREASED FLOWS.
15.0	FLOODING IS EXPECTED IN LOW LYING SECTIONS AROUND HAVERHILL. MARINAS NEAR AND DOWNSTREAM OF HAVERHILL SHOULD TAKE ACTION TO PROTECT BOATS AND DOCKS DUE TO THE INCREASED FLOWS.

Data provided by NOAA Advanced Hydrologic Prediction Service