Manchester, NH Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Manchester, NH

May 8, 2024 5:15 AM EDT (09:15 UTC) Change Location
Sunrise 5:27 AM   Sunset 7:56 PM
Moonrise 5:29 AM   Moonset 9:06 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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Marine Forecasts
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ANZ230 Boston Harbor- 403 Am Edt Wed May 8 2024

Today - SE winds 5 to 10 kt. Waves 1 foot or less. Showers. A slight chance of tstms this morning, then a chance of tstms this afternoon. Some tstms may produce small hail this afternoon. Vsby 1 to 3 nm.

Tonight - NE winds 5 to 10 kt, becoming nw after midnight. Waves 1 foot or less. Patchy fog. A chance of showers in the evening. Vsby 1 to 3 nm.

Thu - N winds 5 to 10 kt, becoming ne 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 nm in the morning.

Thu night - NE winds 15 to 20 kt. Waves 2 to 3 ft. Showers likely, mainly in the evening.

Fri and Fri night - NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of rain.

Sat - NE winds around 10 kt. Waves 2 to 3 ft.

Sat night - S winds 5 to 10 kt. Waves around 2 ft.

Sun and Sun night - SE winds 5 to 10 kt, becoming e. Waves around 2 ft. A chance of rain.
winds and waves higher in and near tstms.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

ANZ200 403 Am Edt Wed May 8 2024

Synopsis for massachusetts and rhode island coastal waters - A warm front lifts toward the waters into early today. The warm front lifts through most of the waters by late today. The trailing cold front slides through Thu night. A few showers and Thunderstorms are possible with both fronts today. More steady widespread rain looks possible Thursday and again on Friday. Low clouds and fog will likely be prevalent through the weekend.


7 Day Forecast for Marine Location Near Manchester, NH
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Area Discussion for - Boston, MA
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FXUS61 KBOX 080747 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 347 AM EDT Wed May 8 2024

SYNOPSIS
Showers and isolated thunderstorms move through the region this morning ahead of a warm front. Then a second round of scattered showers and thunderstorms develop this afternoon with a few strong storms capable of producing hail. Periods of unsettled weather continue late this week into this weekend with showers at times.
Temperatures will average below normal late this week into the weekend. Milder/Seasonable temperatures should return early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/
Key Points...

* Showers and isolated t-storms move through this morning

* A second round of scattered showers and t-storms develop this afternoon. A few strong to marginally severe storms possible, with large hail the primary threat

Decent instability burst and moisture transport ahead of a warm front will result in a period of showers and embedded t-storms moving W to E through SNE this morning. This occurs with a sharp increase in PWATs along with KI increasing from near zero to the 30s in a 6 hr period along the nose of a modest low level jet. The duration of showers will be relatively brief, not lasting more than 2-3 hours in a given location and should be moving to the east this afternoon as dry slot moves in from the west.

Then we will have to watch for a second round of scattered showers and t-storm development this afternoon as a fairly robust mid level shortwave moves into New Eng. Good cooling aloft as 500 mb temps drop to -16 to -18C will result in rather steep mid level lapse rates 7-7.5 C/km overspreading the region. This will contribute to MUCAPES 500-1000+ J/kg developing across much of the region this afternoon. Expect scattered convection developing as forcing for ascent increases ahead of the cold front. HRRR max updraft progs suggest convective initiation in eastern NY and the Berkshires then scattered storms moving ESE across the region. While storms may be mostly elevated, potential exists for marginally severe hail given impressive effective bulk shear values of 50+ kt along with steep mid level lapse rates. SPC has all of SNE within a marginal risk but it appears focus for strongest storms will be from northern CT through interior MA.

There is some uncertainty regarding the extent of surface based instability this afternoon due to presence of cooler low level airmass. Damaging wind threat will be dependent on surface based storms developing. Best chance of SBCAPES up to 1000 J/kg will be across western MA and northern CT as these areas may sneak into the warm sector ahead of a cold front, and decent low level lapse rates develop here. This is where strong to damaging wind threat will be highest with any strong storms.

Highs may reach into the 70s across the Hartford to Springfield corridor with mostly 60s elsewhere. But temps may remain in the 50s across portions of NE MA.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/
Tonight...

Any convection lingering into the early evening will weaken and move offshore as subsidence develops behind departing shortwave along with somewhat drier air moving in with decreasing PWATs. Expect partial clearing developing in the interior, but stratus and patchy fog may linger in the coastal plain. Lows upper 40s and lower 50s.

Thursday...

The day should start out dry as a wedge of dry air will be over SNE.
But moisture increases from the SW during the afternoon ahead of next shortwave dropping through the Gt Lakes and OH valley, with low pres moving to mid Atlc region. Risk of showers will increase during the afternoon. Highs should be mostly in the 60s, mildest CT valley and coolest along the coast in eastern MA where developing NE flow will likely hold temps in the upper 50s here.

LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/
Key Points...

* More widespread rain possible Friday into Saturday night

* Below average temperatures continue through the weekend

* More seasonable temps return next week

Friday

A shortwave trough exits out of the Ohio River Valley becoming negatively tilted as it moves over SNE. The surface low is initially vertically stacked with the shortwave aloft and begins to occlude as new low forms and intensifies offshore to the east. Although the best forcing will be to the south of SNE, the chances for a widespread rain are increasing. As a mid level low passes over and intensifies to the south of the region, this will drag down rather cold 850mb air around 0C to -2C. With ENE winds at the surface, along with cold 850mb temps, low clouds, and rain, high temps may struggle to even reach 50F across the region. Rain looks to continue into Friday night before tapering off Saturday morning. Overnight lows look to drop into the low 40s, with upper 30s possible in the high terrain. Not out of the question that snow mixes in with rain across the high terrain in the Berkshires.

Saturday

Surface and midlevel low move well out to sea bringing widespread rain to end in the morning. However, an upper level closed low drops south over the region leaving SNE under cyclonic flow aloft. With weak forcing aloft and the mid level cold pool still in place, this will likely lead to a hit or miss light showers/drizzle. High temps on Saturday don't look to recover much with thick low level cloud layer still around. High temps should only reach the low to mid 50s with continued onshore flow.

Sunday

Another weak surface low exits the Ohio River Valley and passes just south of SNE. This could bring another round of widespread light rain to the region. Uncertainty with this system remains high given the weak upper level forcing and not much run to run consistency on the track of the low. Highs remain below normal Sunday and could once again struggle to reach 50F.

Next week

The pesky upper level low and mid level cold pool finally move east as a midlevel shortwave brings WAA and 850mb temps above 0C to even +10C by mid week. This will allow high temps to moderate back into the low to mid 70s. As for rain chances, high pressure to the south should keep things dry early in the week. Rain chances look to increase again mid to late week, but uncertainty is high at this time.

AVIATION /08Z WEDNESDAY THROUGH SUNDAY/
Forecast Confidence Levels:

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

06z TAF Update...

Through 12z...

IFR-LIFR fog and stratus for Cape/Islands which may expand along the immediate south coast, otherwise VFR cigs. Showers and possible embedded t-storms moving into western MA/CT 09-12z.

Today...Moderate confidence.

MVFR-IFR conditions overspread the remainder of the region during the morning as a cluster of showers and embedded t-storms move through from W to E roughly 12-17z. A second round of scattered showers/t-storms is possible 18-23z, with best chance from northern CT northward through interior MA. We included VCTS in BDL/BAF/ORH/BED TAFS. Some hail is possible with the afternoon/early evening activity. A period of SW gusts to 20 kt and pockets of LLWS possible this afternoon across SE MA and Cape/Islands as LLJ develops and moves across the region.

Tonight...Low to moderate confidence.

SHRA/TS exits into the waters early this evening. Some clearing is possible tonight for western MA/CT but stratus and patchy fog may linger across eastern MA and RI. Extent of IFR conditions is uncertain. Light winds.

Thursday...Moderate confidence.

Mix of VFR/MVFR conditions trending to widespread MVFR in the afternoon as more showers develop. N wind 5-15 kt becoming NE.

KBOS TAF...Moderate confidence in TAF. A brief period of showers move through roughly 14-17z, with an embedded t-storm possible.
Cigs expected to lower to MVFR then IFR by this afternoon.
Scattered showers and possible t-storms redevelop to the north and west this afternoon and may move across BOS mid-late afternoon.

KBDL TAF...Moderate confidence in TAF. A brief period of showers move through roughly 11-14z, with an embedded t-storm possible.
Cigs expected to lower to MVFR then IFR later this morning.
Another round of scattered showers or t-storm possible this afternoon and we have included VCTS in the TAF.

Outlook /Thursday Night through Sunday/...

Thursday Night: MVFR/IFR conditions possible. Breezy. Chance SHRA.

Friday through Friday Night: MVFR/IFR conditions possible.
Chance RA.

Saturday: MVFR/IFR conditions possible.

Saturday Night: Mainly VFR, with areas MVFR possible. Slight chance SHRA.

Sunday: Mainly VFR, with local MVFR possible. Chance RA.

MARINE
Forecaster Confidence Levels:

Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.

Through Thursday...High confidence.

Low level jet will bring a period of SW gusts to 20+ kt to south coastal waters this afternoon. Winds diminish tonight, becoming north by Thu morning then NE 10-20 kt during Thu afternoon. Seas remain below SCA thresholds. Areas of fog will reduce vsbys at times over south coastal waters through tonight. Scattered showers and embedded t-storms move through this morning into early afternoon.

Outlook /Thursday Night through Sunday/...

Thursday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers.

Friday through Friday Night: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain.

Saturday: Winds less than 25 kt. Seas up to 5 ft.

Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.

Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain.

TIDES/COASTAL FLOODING
High astronomical tides coupled with onshore flow may result in some splashover/very minor coastal flooding during the overnight high tide cycles tonight and Thu night. However, wind/waves do not appear high enough to result in a significant issue. The daytime high tides are lower and do not pose a threat for coastal flooding.

BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
BGXN3 - Great Bay Reserve, NH 30 mi90 min ENE 1 45°F 29.7144°F
SEIM1 34 mi45 min 53°F 49°F29.7148°F
IOSN3 - Isle of Shoals, NH 40 mi75 min N 8G8.9 52°F 29.6848°F
44073 45 mi160 min NE 3.9G5.8 52°F 50°F
BHBM3 - 8443970 - Boston, MA 47 mi45 min 58°F 29.67


Wind History for No Ports station near this location
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No data


Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KMHT MANCHESTER,NH 5 sm22 minNNW 0310 smMostly Cloudy50°F43°F76%29.68
KASH BOIRE FIELD,NH 16 sm19 minWNW 0310 smClear48°F48°F100%29.70
KCON CONCORD MUNI,NH 16 sm24 mincalm10 smClear43°F43°F100%29.71
KLWM LAWRENCE MUNI,MA 23 sm21 mincalm10 smClear48°F45°F87%29.70
Link to 5 minute data for KMHT


Wind History from MHT
(wind in knots)
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Tide / Current for Squamscott River RR. Bridge, New Hampshire
   
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Squamscott River RR. Bridge
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Wed -- 01:41 AM EDT     8.59 feet High Tide
Wed -- 05:26 AM EDT     Moonrise
Wed -- 05:27 AM EDT     Sunrise
Wed -- 08:27 AM EDT     -1.16 feet Low Tide
Wed -- 02:20 PM EDT     7.69 feet High Tide
Wed -- 07:53 PM EDT     Sunset
Wed -- 08:37 PM EDT     -0.25 feet Low Tide
Wed -- 09:03 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Squamscott River RR. Bridge, New Hampshire, Tide feet
12
am
7
1
am
8.3
2
am
8.6
3
am
7.8
4
am
6.2
5
am
3.9
6
am
1.7
7
am
-0.1
8
am
-1.1
9
am
-1
10
am
0.3
11
am
2.5
12
pm
4.8
1
pm
6.7
2
pm
7.6
3
pm
7.5
4
pm
6.5
5
pm
4.7
6
pm
2.7
7
pm
1
8
pm
-0.1
9
pm
-0.2
10
pm
0.9
11
pm
2.9


Tide / Current for Newburyport, Merrimack River, Massachusetts (2)
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Newburyport
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Wed -- 05:27 AM EDT     Moonrise
Wed -- 05:28 AM EDT     Sunrise
Wed -- 06:57 AM EDT     -1.33 feet Low Tide
Wed -- 12:32 PM EDT     8.81 feet High Tide
Wed -- 07:07 PM EDT     -0.29 feet Low Tide
Wed -- 07:52 PM EDT     Sunset
Wed -- 09:02 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Newburyport, Merrimack River, Massachusetts (2), Tide feet
12
am
9.9
1
am
9.2
2
am
7.7
3
am
5.4
4
am
2.9
5
am
0.6
6
am
-0.9
7
am
-1.3
8
am
-0.5
9
am
1.8
10
am
4.7
11
am
7.2
12
pm
8.6
1
pm
8.7
2
pm
7.8
3
pm
6.1
4
pm
3.9
5
pm
1.9
6
pm
0.3
7
pm
-0.3
8
pm
0.3
9
pm
2.3
10
pm
5.1
11
pm
7.8


Weather Map
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GEOS Local Image of north east   
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Boston, MA,





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