Heat Continues For Parts Of Western & Southern U.S. While Monsoon Slowly Begins To Decrease

Another day of dangerous heat is in store for parts of the western and southern U.S. on Tuesday before a cooling trend begins Wednesday. Excessive Heat Warnings are in effect for northern CA and southwestern OR, while Heat Advisories cover parts of the southern Plains/Lower MS Valley. Meanwhile, monsoon will slowly taper off Tuesday in the Southwest, but isolated heavy rain remains possible.
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Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight

S 10kt
4ft
Low: 67 °F
Tuesday

S 15kt
4ft
High: 70 °F

Small Craft Advisory
Tuesday
Night
S 10kt
4-5ft
Low: 65 °F

Small Craft Advisory
Wednesday

N 10kt
3ft
High: 73 °F
Wednesday
Night
NNW 10kt
3ft
Low: 63 °F
Thursday

N 10kt
3ft
High: 70 °F
Thursday
Night
Light Wind
2-3ft
Low: 64 °F
Friday

S 10kt
2ft
High: 71 °F
Friday
Night
SSW 10kt
2ft
Low: 64 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:04 am EDT Jul 17, 2018
Forecast Valid: 4am EDT Jul 17, 2018-6pm EDT Jul 23, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-171600- 955 PM EDT Mon Jul 16 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Moist onshore flow continues tonight...with low clouds and dense fog likely across all coastal waters. A cold front will approach from the west Tuesday...crossing the waters Tuesday night. Showers and thunderstorms are likely with the front...some of which may contain gusty winds and torrential rainfall. High pressure builds in from the west on Wednesday and remains over the waters through the end of the week. $$

Overnight

S wind around 10 kt. A slight chance of showers and thunderstorms after 5am. Areas of dense fog. Seas around 4 ft.

Tuesday

S wind 10 to 15 kt. Showers and thunderstorms, mainly after 3pm. Some storms could be severe, with damaging winds, gusty winds, and heavy rain. Areas of dense fog. Seas around 4 ft.

Tuesday Night

S wind 5 to 10 kt becoming SW after midnight. Showers and thunderstorms before midnight, then a chance of showers between midnight and 5am. Some storms could be severe, with gusty winds and heavy rain. Areas of dense fog. Seas 4 to 5 ft.

Wednesday

N wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas around 3 ft.

Wednesday Night

NNW wind around 10 kt. Mostly clear. Seas around 3 ft.

Thursday

N wind 7 to 10 kt becoming ESE 5 to 8 kt in the afternoon. Sunny. Seas around 3 ft.

Thursday Night

Variable winds 5 kt or less. Clear. Seas 2 to 3 ft.

Friday

WNW wind 5 to 10 kt becoming S in the afternoon. Sunny. Seas around 2 ft.

Friday Night

SSW wind around 10 kt. Mostly clear. Seas around 2 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.