Alert archive / New Hampshire / River Flood Warnings in 2017
River Flood Warning 37, NWS Gray, ME
NWS Gray, ME issued this river flood warning at Oct 30, 2017, 2:00 PM EDT for Hillsborough County, New Hampshire. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Oct 30, 2017, 2:00 PM EDT (18:00 UTC)
- Expired
- Oct 31, 2017, 12:00 AM EDT
- In force
- 10 hr
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Flood severity
- Minor
County Hillsborough County, NH
The radar
The Boston radar (KBOX), 117 km from the middle of the area, began a volume at 17:59 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 Piscataquog River at Goffstown (GFFN3).
- Action stage
- 7 ft
- Minor stage
- 9 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 01091500, 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 Oct 30, 11:51 AM EDT, 2 hours 9 minutes earlier.
Area forecast discussion, Oct 30, 11:51 AM EDT, 2 hours 9 minutes before
Area Forecast Discussion
National Weather Service Gray ME
1151 AM EDT Mon Oct 30 2017
.SYNOPSIS...
As low pressure moves north, a cold front will sweep westward
across New England today, ushering in colder, drier air on a
stiff westerly wind. The westerly winds will continue but
gradually decrease in intensity through Tuesday as high pressure
builds in from the southwest. The next frontal system will
arrive late next week bringing another chance of rain, but not
as heavy this time.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
1145 AM...FOrecast in reasonable shape. Main adjustment was to
pops, as cold front and wind shift line move through this
afternoon. Should see pops wind down to near zero once the
front passes by, except for the mountains where a period
upslope showers is possible through the afternoon into early
evening, but airmass does dry out quickly so it shouldn't last
too long. Also, looking for the best surge of stronger winds
right behind this line moving tough early to mid afternoon.
955 AM...So updated the wind forecast and flags for today.
dropped the HWW over land for all everywhere and issued Wind
Advisory through this afternoon. As winds shift to WSW over the
next few hours, will see winds in the 925-850 MB range increase
to 40-45 kt. Given a well-mixed atmosphere in the CAA advection
behind the front, should be able some gusts to 40-50 mph this
afternoon. So, not as bas as earlier this morning, but enough to
bring a few more limbs/trees, and to impact power restoration
efforts.
730 am Update: Have dropped the High Wind Warnings over southern
NH as winds have shifted into the south and diminished. Over
Maine all headlines will remain in place through mid morning. Dry
slot working north into the area with heaviest rain now across
central and eastern Maine. Meanwhile, light showers will
continue over NH and southwest Maine the rest of the morning
into the afternoon.
Previous Discussion:
The forecast of high winds and heavy rainfall verifying nicely
at this time and will continue on track into this morning. All
headlines currently up will remain in tact through the early
morning.
As the main center of low pressure moves north through upstate
New York, the remains of Philippe is being ingested into the
strong south to southeast flow aloft and showing up nicely on
satellite imagery as its entering into the Gulf of Maine early
this morning. This will help mix down the winds from the low/mid
level jet aloft over coastal and eastern areas as well as
enhance rainfall rates. Isolated thunderstorms will be possible
over southern and eastern areas of Maine due to this feature.
Currently very heavy rain is occurring in the orographically
induced areas of the mountains and foothills and some Flash
Flood Warnings are being issued in certain areas.
By mid morning a nice dry slot is depicted by models to move
through southern and eastern areas, bringing an end to the
heavy rain. This dry slot showing up nicely on composite radar
and Satellite imagery. The flow will shift to westerly and
become gusty again by afternoon. As wind headlines get dropped
from the southeast flow this morning, some additional headline
may be needed as the winds shift to the west but will also be
very strong and gusty.
Total QPF looks to be in the 1.5 to 4 inch range but some
locally higher amounts in the higher terrain can't be ruled out.
Used a blend of models for max temps this afternoon.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...
A drier and cooler air mass spreads across the region for
tonight on the westerly flow as high pressure begins to build
east.
Upper level troughing will still be in control Tuesday night
with variable cloudiness across the region. High pressure builds
in at the surface allowing for more drying and cooler but
seasonable temperatures.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Long term forecast mostly kept as is to focus on current storm
system.
High pressure moves east on Wednesday with a southerly flow
returning. This will bring gradually more warmth and moisture
into the region. Models are slowly coming into better agreement
on timing and track of the next wave which will begin affecting
us later in the week. It is looking more and more like this low
will track fairly well to the north of our area, keeping us out
of the heavier precipitation, with the best shot of rain being
on Friday with the cold front moves through. However, there
will be increasing cloud cover as the southeast flow off the
water brings in some low level clouds and perhaps some drizzle
on Thursday. The GFS has a more defined warm front with warm
advection precipitation on Thursday, but it appears to be the
outlier at this point, with other models keeping these dynamics
further to the north.
The front moves through on Friday with colder air moving in for
the weekend. Cold high pressure moves in Saturday night. GFS
brings another weak wave through the area Saturday night with a
chance of rain (and snow to the north). However, CMC and ECMWF
both keep the high over Maine through Sunday morning. Given the
consistency with these models, have discounted the GFS just a
bit and favored the forecast towards the ECMWF/CMC. This would
mean Sunday morning could be a good radiational cooling morning
with a widespread freeze. The cold won't last too long, though,
as we get back into the southwest flow again early next week.
&&
.AVIATION /16Z MONDAY THROUGH FRIDAY/...
Short Term...MVFR/IFR conditions will continue this morning.
Improving conditions to VFR will occur this afternoon. The very
strong southeast gusts early this morning will shift to west
across all areas by mid morning but remain gusty through the
afternoon and into the evening.
Long Term...Westerly winds remain fairly strong on Tuesday but
will finally calm down Tuesday night as high pressure moves
through. A return southerly flow begins on Wednesday, with lower
ceilings possibly moving in off the Gulf of Maine as early as
Wednesday night or Thursday. Another cold front moves through
from the northwest on Friday, pushing out the low level moisture
and returning VFR conditions to the region after a brief shot of
rainfall.
&&
.MARINE...
Short Term...955 AM...replaced Storms with gales over Casco Bay,
and should be able to do this across most of the other waters
by early afternoon.
Previously...Storm Warnings will continue the rest of the
morning in the Bays and through the afternoon over the outer
waters. Given the strength of the winds seas will rise to 18-25
ft this morning. Winds will eventually diminish to gales
tonight.
Long Term...Westerly winds on Tuesday will gust into the 30 to
35 KT range before diminishing Tuesday night with high pressure
moving by. A southerly flow begins again by Thursday, possibly
reaching advisory levels before the next cold front arrives on
Friday.
&&
.HYDROLOGY...
Flash flood threat is winding down as heaviest rainfall moves
out of the area and showers become less tropical in nature.
Many rivers are flooding or forecast to flood across interior NH
and ME. Some warnings are out already, and may need warnings on
some of the Kennebec tributaries.
&&
.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Wind Advisory until 6 PM EDT this evening for MEZ007>009-
012>014-018>028.
NH...Wind Advisory until 6 PM EDT this evening for NHZ001>015.
Flash Flood Watch until 7 PM EDT this evening for NHZ002.
MARINE...Gale Warning until 8 PM EDT this evening for ANZ153.
Storm Warning until 5 PM EDT this afternoon for ANZ150-152-154.
Storm Warning until noon EDT today for ANZ151.
&&
NEAR TERM...Cempa/Marine
SHORT TERM...Hanes
LONG TERM...LegroHazardous weather outlook, Oct 30, 7:24 AM EDT, 6 hours 36 minutes before
Hazardous Weather Outlook National Weather Service Gray ME 724 AM EDT Mon Oct 30 2017 NHZ004>013-015-311130- Northern Carroll-Southern Grafton-Southern Carroll-Sullivan- Merrimack-Belknap-Strafford-Cheshire-Eastern Hillsborough- Interior Rockingham-Western And Central Hillsborough- 724 AM EDT Mon Oct 30 2017 ...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for New Hampshire, central New Hampshire, northern New Hampshire and southern New Hampshire. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ018>028-NHZ014-311130- Interior York-Interior Cumberland-Androscoggin-Kennebec- Interior Waldo-Coastal York-Coastal Cumberland-Sagadahoc-Lincoln- Knox-Coastal Waldo-Coastal Rockingham- 724 AM EDT Mon Oct 30 2017 ...HIGH WIND WARNING IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for Maine, south central Maine, southwest Maine and southern New Hampshire. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ007>009-012>014-311130- Northern Oxford-Northern Franklin-Central Somerset-Southern Oxford- Southern Franklin-Southern Somerset- 724 AM EDT Mon Oct 30 2017 ...WIND ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for south central Maine, west central Maine and western Maine. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Wind Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NHZ001>003-311130- Northern Coos-Southern Coos-Northern Grafton- 724 AM EDT Mon Oct 30 2017 ...HIGH WIND WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for northern New Hampshire. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ150-152-154-311130- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 724 AM EDT Mon Oct 30 2017 ...STORM WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ151-153-311130- Penobscot Bay-Casco Bay- 724 AM EDT Mon Oct 30 2017 ...STORM WARNING IN EFFECT UNTIL NOON EDT TODAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
In the hours before
Local storm report, Oct 30, 11:39 AM EDT, 2 hours 21 minutes before
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</html>Local storm report, Oct 30, 12:00 PM EDT, 2 hours before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Gray ME
1200 PM EDT MON OCT 30 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0337 AM NON-TSTM WND DMG WOODSTOCK 43.98N 71.69W
10/30/2017 GRAFTON NH TRAINED SPOTTER
TREES...WIRES...AND POLES DOWN.
&&
EVENT NUMBER GYX1704323
ARNOTTLocal storm report, Oct 30, 12:14 PM EDT, 1 hour 46 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Gray ME
1214 PM EDT MON OCT 30 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM NON-TSTM WND DMG 3 WNW BATH 43.93N 69.88W
10/30/2017 CUMBERLAND ME TRAINED SPOTTER
LARGE TREE INTO MOBILE HOME ON PRIMOSE LANE
&&
EVENT NUMBER GYX1704324
ESLocal storm report, Oct 30, 12:45 PM EDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Gray ME
1245 PM EDT MON OCT 30 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0553 AM NON-TSTM WND GST PEMAQUID 43.90N 69.51W
10/30/2017 M72 MPH LINCOLN ME TRAINED SPOTTER
PEMAQUID POINT LIGHT - 60 MPH 2 MIN AVG
&&
EVENT NUMBER GYX1704325
CEMPASpecial weather statement, Oct 30, 1:01 PM EDT, 59 minutes before
Special Weather Statement National Weather Service Gray ME 101 PM EDT MON OCT 30 2017 MEZ007-008-012-013-NHZ002-004-301800- Northern Oxford-Southern Oxford-Southern Franklin-Northern Franklin-Southern Coos-Northern Carroll- 101 PM EDT MON OCT 30 2017 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL OXFORD... SOUTHWESTERN FRANKLIN AND EAST CENTRAL COOS COUNTIES... At 100 PM EDT, a strong thunderstorm was located near Bethel, moving northeast at 40 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Berlin, Bethel, Rumford, Rangeley, Andover, Grafton, Weld, Mexico, Gorham, Lovell, Chatham, Hanover, Gilead, Byron, South Arm, Riley, Rangeley Plantation, Roxbury, Mason and Batchelders Grant. This also includes... Speckled Mountain, Old Speck Mountain, Grafton Notch, Evans Notch, and Moose Brook State Park. Torrential rainfall is also occurring with this storm, and may cause additional localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4442 7127 4494 7077 4472 7044 4421 7094 TIME...MOT...LOC 1700Z 211DEG 36KT 4447 7088 MBC
Local storm report, Oct 30, 1:38 PM EDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Gray ME
138 PM EDT MON OCT 30 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM NON-TSTM WND GST 2 WSW CUMBERLAND 43.79N 70.30W
10/30/2017 M50 MPH CUMBERLAND ME TRAINED SPOTTER
&&
EVENT NUMBER GYX1704326
ESThe office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 30, 1:19 AM EDT | Areal Flood Warning | GYX | York | 6 hr |
| Oct 30, 4:21 AM EDT | Flash Flood Warning | GYX | Cumberland, Oxford | 6 hr |
| Oct 30, 9:52 AM EDT | Gale Warning | GYX | 17 hr | |
| Oct 30, 11:58 AM EDT | Areal Flood Warning | GYX | Franklin, Oxford, Somerset | 6 hr |
| Oct 30, 1:01 PM EDT | Special Weather Statement | GYX | Oxford | 59 min |
| Oct 30, 1:15 PM EDT | River Flood Warning | GYX | Oxford | 25 hr |
| Oct 30, 2:00 PM EDT | River Flood Warning | GYX | Somerset | 8 hr |
| Oct 30, 6:08 PM EDT | Small Craft Advisory | GYX | 35 hr | |
| Oct 30, 2:05 AM EDT | River Flood Warning | GYX | Grafton | 36 hr |
| Oct 30, 2:55 AM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 4:04 AM EDT | Flash Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 4:09 AM EDT | River Flood Warning | GYX | Hillsborough | 19 hr |
| Oct 30, 5:31 AM EDT | River Flood Warning | GYX | Merrimack | 60 hr |
| Oct 30, 5:54 AM EDT | River Flood Warning | GYX | Belknap, Grafton, Merrimack | 10 hr |
| Oct 30, 5:57 AM EDT | River Flood Warning | GYX | Cheshire, Hillsborough | 20 hr |
| Oct 30, 6:14 AM EDT | River Flood Warning | GYX | Grafton | 14 hr |
| Oct 30, 8:53 AM EDT | Areal Flood Warning | GYX | Belknap, Carroll, Coos, Grafton | 6 hr |
| Oct 30, 10:36 AM EDT | River Flood Warning | GYX | Coos | 11 hr |
| Oct 30, 11:48 AM EDT | River Flood Warning | GYX | Grafton | 7 hr |
| Oct 30, 2:48 PM EDT | River Flood Warning | GYX | Merrimack | 29 hr |
| Oct 30, 6:47 PM EDT | Flash Flood Watch | GYX | Coos | 15 hr |
Nearby
River Flood Warnings in New Hampshire, 2017Every river flood warning in 2017
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.