Alert archive / New Hampshire / River Flood Warnings in 2023

River Flood Warning 39, NWS Gray, ME

December 11, 2023Belknap County, Merrimack County, New Hampshire

NWS Gray, ME issued this river flood warning at Dec 11, 2023, 6:01 AM EST for Belknap County, Merrimack County, New Hampshire. It took effect at Dec 11, 2023, 11:42 AM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Dec 11, 2023, 6:01 AM EST (11:01 UTC)
In effect from: Dec 11, 2023, 11:42 AM EST
Expired: Dec 12, 2023, 2:39 AM EST
In force: 15 hr
Issued by: NWS Gray, ME
Area: Storm-based polygon
Flood severity: Minor

Counties Belknap County, NH, Merrimack County, NH

The radar

The Portland,ME radar (KGYX), 117 km from the middle of the area, began a volume at 11:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Suncook River at North Chichester (NCHN3). The gauge peaked at 7.26 ft at Dec 11, 2023, 6:00 PM EST.

Action stage: 6 ft
Minor stage: 7 ft
Moderate stage: 12 ft
Major stage: 16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01089500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before this river flood warning went out at Dec 10, 4:03 PM EST, 13 hours 58 minutes earlier.

Area forecast discussion, Dec 10, 4:03 PM EST, 13 hours 58 minutes before

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Hazardous weather outlook, Dec 10, 3:14 PM EST, 14 hours 47 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Gray, ME issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 11, 2:53 AM EST	Areal Flood Advisory	GYX	Cumberland, York	5 hr
Dec 11, 4:24 AM EST	Areal Flood Warning	GYX	Androscoggin, Kennebec, Knox, Lincoln, Sagadahoc, Waldo	6 hr
Dec 11, 4:52 AM EST	Areal Flood Advisory	GYX	Cumberland, Franklin, Oxford, Somerset	6 hr
Dec 11, 7:11 AM EST	River Flood Warning	GYX	Cumberland, Oxford	18 hr
Dec 11, 8:04 AM EST	River Flood Warning	GYX	Kennebec	33 hr
Dec 11, 8:04 AM EST	River Flood Warning	GYX	Kennebec, Somerset	33 hr
Dec 11, 8:04 AM EST	River Flood Warning	GYX	Kennebec	41 hr
Dec 11, 8:04 AM EST	River Flood Warning	GYX	Kennebec, Sagadahoc	35 hr
Dec 11, 12:27 PM EST	Small Craft Advisory	GYX		3 days

Nearby

River Flood Warnings in New Hampshire, 2023 Every river flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.