Alert archive / New Hampshire / River Flood Warnings in 2011

River Flood Warning 56, NWS Gray, ME

August 29, 2011Coos County, New Hampshire

NWS Gray, ME issued this river flood warning at Aug 29, 2011, 1:29 AM EDT for Coos County, New Hampshire. It took effect at Aug 29, 2011, 2:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Aug 29, 2011, 1:29 AM EDT (05:29 UTC)
In effect from: Aug 29, 2011, 2:00 AM EDT
Expired: Aug 29, 2011, 8:06 AM EDT
In force: 6 hr
Issued by: NWS Gray, ME
Flood severity: Minor

County Coos County, NH

The radar

The Portland,ME radar (KGYX), 122 km from the middle of the area, began a volume at 05:30 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 Androscoggin River at Gorham (GRMN3). The gauge peaked at 8.09 ft at Aug 29, 2011, 5:00 AM EDT.

Action stage: 7 ft
Minor stage: 8 ft
Moderate stage: 10 ft
Major stage: 12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01054000, 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 Aug 28, 8:12 PM EDT, 5 hours 17 minutes earlier.

Area forecast discussion, Aug 28, 8:12 PM EDT, 5 hours 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
812 PM EDT SUN AUG 28 2011

.SYNOPSIS...
LOW PRESSURE ASSOCIATED WITH THE REMNANTS OF IRENE WILL CONTINUE
TO MOVE NORTH NORTHEAST THROUGH NORTHERN NEW ENGLAND TONIGHT. RAIN
WILL GRADUALLY COME TO AN END BUT GUSTY WINDS WILL CONTINUE
THROUGH THE EVENING. HIGH PRESSURE WILL BUILD IN MONDAY THROUGH
TUESDAY MORNING. A COLD FRONT WILL CROSS THE REGION TUESDAY
AFTERNOON AND EVENING. HIGH PRESSURE WILL RETURN FOR WEDNESDAY
THROUGH FRIDAY WITH LOW PRESSURE FORMING OFF THE MID ATLANTIC
COAST.

&&

.NEAR TERM /OVERNIGHT/...
THE LOW PRESSURE CENTER ASSOCIATED WITH THE REMNANTS OF IRENE WAS
LOCATED NEAR PLYMOUTH NEW HAMPSHIRE THIS EVENING AND MOVING TO THE
NORTH NORTHEAST. MUCH OF THE RAINFALL HAS MOVED NORTH INTO
CANADA...WITH WRAP AROUND RAINFALL MOVING INTO MUCH OF VERMONT.
ALTHOUGH THE RAIN HAS TAPERED OFF ACROSS MUCH OF MAINE AND NEW
HAMPSHIRE...STRONG GUSTY WINDS CONTINUE AROUND THE LOW AS THE
PRESSURE GRADIENT REMAINS STRONG. JUST ABOVE THE SURFACE WIND
SPEEDS ARE MUCH HIGHER...AS AFTERNOON SOUNDING SHOWED 60 TO 70 KT
WINDS JUST ABOVE 1000 FEET. THESE STRONG JETS WILL MOVE OFF TO THE
NORTHEAST AND SLOWLY WEAKEN OVERNIGHT. EXPECT WIND GUSTS TO
DIMINISH GRADUALLY AS NOCTURNAL INVERSION SETS UP AND OFFERS
BETTER PROTECTION FROM THE STRONG WINDS JUST ABOVE THE GROUND.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
QUIET MONDAY AND MONDAY NIGHT WITH WEAK HIGH PRESSURE MOVING IN.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
HIGH PRESSURE DOMINATES FOR MUCH OF THE PERIOD WITH DRY AND
PLEASANT WEATHER. A COLD FRONT MAY APPROACH ON THE WEEKEND WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
STRONG WIND GUSTS SHOULD SLOWLY SUBSIDE THIS EVENING. VERY STRONG
LOW LEVEL JETS OF 50 TO 60 KT AT AROUND 1500 FEET CONTINUE TO
CIRCULATE AROUND THE LOW PRESSURE AND WILL KEEP LOW LEVEL WIND
SHEAR IN THE FORECAST THROUGH MUCH OF THE NIGHT. IFR OR LIFR
CONDITIONS WILL TEND TO IMPROVE ONCE WINDS GO AROUND TO THE WEST
BEHIND THE DEPARTING LOW. SHOULD SEE VFR CONDITIONS BY TOMORROW
MORNING EVERYWHERE WITH LIGHTER WINDS AROUND 10 TO 15 KT.

LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...COLD FRONT MAY BRING
SOME SHOWERS AND MVFR CONDITIONS LATER IN THE PERIOD.

&&

.MARINE...
SHORT TERM /TONIGHT THROUGH MONDAY/...SWLY WINDS GUST UP TO AROUND 50
KT UNTIL AFTER MIDNIGHT. SEAS WILL THEN DIMINISH ALONG WITH THE
WINDS. CONTINUED SUBSIDING IS EXPECTED MONDAY AND MONDAY NIGHT.

LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...GENERALLY A QUIET
PERIOD ONCE SEAS SUBSIDE BELOW SCA LEVELS.

&&

.HYDROLOGY...
ALTHOUGH MOST OF THE HEAVY RAIN HAS PASSED...SIGNIFICANT RUNOFF IS
STILL OCCURRING AND WILL CONTINUE TO POSE A FLOODING THREAT THROUGH
THE NIGHT ESPECIALLY IN NORTHERN NEW HAMPSHIRE AND NORTHWEST
MAINE. MONITOR THE LATEST FLOOD WARNINGS FOR STAGES AND FORECASTS
FOR INDIVIDUAL RIVERS.

&&

.TIDES/COASTAL FLOODING...
HIGH TIDE AT PORTLAND IS 10.9 FEET AT 1111 PM TONIGHT. STRONG
SOUTHERLY FLOW HAS CAUSED A STORM SURGE OF 1 TO 1.5 FT TO BUILD
THIS AFTERNOON. THIS COULD CAUSE MINOR FLOODING THIS EVENING
AROUND THE TIME OF HIGH TIDE IN VULNERABLE AREAS ALONG THE COAST.
IN ADDITION TO THE RISING TIDE AND SURGE...WAVES OF 15 FT WILL
CAUSE SPLASH OVER ONTO AREAS NEAR THE COAST.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...TROPICAL STORM WARNING FOR MEZ007>009-012>014-018>028.
     FLOOD WATCH UNTIL 6 AM EDT MONDAY FOR MEZ007>009-012>014-
     018>028.
NH...TROPICAL STORM WARNING FOR NHZ001>010-013-014.
MARINE...TROPICAL STORM WARNING FOR ANZ150>154.
&&

SYNOPSIS...CEMPA
NEAR TERM...KIMBLE
SHORT TERM...EKSTER
LONG TERM...EKSTER
AVIATION...KIMBLE
MARINE...EKSTER
HYDROLOGY...KIMBLE
TIDES/COASTAL FLOODING...KIMBLE

Hazardous weather outlook, Aug 28, 11:54 PM EDT, 1 hour 35 minutes before

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In the hours before

Local storm report, Aug 28, 8:01 PM EDT, 5 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
801 PM EDT SUN AUG 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0155 PM     FLOOD            5 E HANOVER             43.70N  72.19W
08/28/2011                   GRAFTON            NH   PUBLIC

            PUBLIC REPORTED FLOODING AT MINK BROOK IN ETNA NH

&&

EVENT NUMBER GYX1100419

DS

Local storm report, Aug 28, 8:04 PM EDT, 5 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
804 PM EDT SUN AUG 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0540 PM     FLOOD            TWIN MOUNTAIN           44.27N  71.54W
08/28/2011                   COOS               NH   PUBLIC

            PUBLIC REPORTED AMMONOOSUC RIVER OVER RTE 302 IN TWIN
            MOUNTAIN

&&

EVENT NUMBER GYX1100420

DS

Local storm report, Aug 28, 8:05 PM EDT, 5 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
805 PM EDT SUN AUG 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0504 PM     FLOOD            WENTWORTH               43.87N  71.91W
08/28/2011                   GRAFTON            NH   PUBLIC

            PUBLIC REPORTED FLOODING ON BAKER RIVER AND SOUTH
            BRANCH OF BAKER RIVER IN WENTWORTH. HOMES UNDERWATER AND
            CAMPERS OVERTURNED

&&

EVENT NUMBER GYX1100421

DS

Local storm report, Aug 28, 9:07 PM EDT, 4 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
907 PM EDT SUN AUG 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0740 PM     FLOOD            SHELBURNE               44.40N  71.18W
08/28/2011                   COOS               NH   PUBLIC

            PUBLIC REPORTED ANDROSCOGGIN RIVER OUT OF ITS BANKS IN
            SHELBURNE NH AND STILL RISING.

&&

EVENT NUMBER GYX1100422

DS

Local storm report, Aug 28, 11:00 PM EDT, 2 hours 29 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 9:29 PM EDT	River Flood Warning	GYX	Oxford	25 hr
Aug 28, 10:03 PM EDT	River Flood Warning	GYX	Somerset	31 hr
Aug 28, 10:03 PM EDT	River Flood Warning	GYX	Kennebec	27 hr
Aug 28, 10:03 PM EDT	River Flood Warning	GYX	Kennebec	40 hr
Aug 28, 10:03 PM EDT	River Flood Warning	GYX	Franklin, Somerset	7 hr
Aug 28, 11:38 PM EDT	Gale Warning	GYX		10 hr
Aug 29, 12:31 AM EDT	Areal Flood Warning	GYX	Oxford	8 hr
Aug 29, 9:15 AM EDT	Small Craft Advisory	GYX		9 hr
Aug 29, 10:18 AM EDT	River Flood Warning	GYX	Androscoggin	28 hr
Aug 29, 5:51 PM EDT	Small Craft Advisory for Hazardous Seas	GYX		12 hr
Aug 29, 12:32 AM EDT	River Flood Warning	GYX	Merrimack	14 hr
Aug 29, 9:00 AM EDT	River Flood Warning	GYX	Belknap, Grafton, Merrimack	10 hr

Nearby

River Flood Warnings in New Hampshire, 2011 Every river flood warning in 2011

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.