Sunrise 5:12 AM   Sunset 8:44 PM Moonrise 2:35 AM   Moonset 7:14 PM

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SLZ024 Expires:202407030915;;345263 Fzus61 Kbuf 030229 Glfsl
forecast for the saint lawrence river including the thousand islands region national weather service buffalo ny 1029 pm edt Tue jul 2 2024
slz022-024-030915- saint lawrence river from cape vincent to saint regis 1029 pm edt Tue jul 2 2024
Overnight - Southeast winds 10 knots or less becoming south. Mostly cloudy. Wednesday - South winds 5 to 15 knots. A chance of showers and Thunderstorms late. Wednesday night - South winds 5 to 15 knots becoming southwest. Showers with a chance of Thunderstorms. Thursday - Southwest winds 10 knots or less. Partly to mostly Sunny. Thursday night - Southwest winds less than 10 knots. Mostly cloudy. Friday - Light and variable winds becoming east 5 to 10 knots. A chance of showers and Thunderstorms Friday night. Saturday - Southeast winds 5 to 15 knots becoming southwest. Showers likely with a chance of Thunderstorms. Sunday - Southwest winds 10 knots or less. Partly cloudy.
winds and waves higher in and near Thunderstorms.

SLZ005
No data

FXUS61 KBTV 030539 AFDBTV

Area Forecast Discussion National Weather Service Burlington VT 139 AM EDT Wed Jul 3 2024

SYNOPSIS
Dry weather will continue tonight and much of Wednesday as high pressure gradually crosses the region. A frontal boundary will bring increasing chances for showers and a few thunderstorms late Wednesday and Wednesday night but, at this time, the Fourth of July is expected to be mostly dry. Temperatures will remain seasonable with highs in the 80s and lows in the 50s and 60s.

NEAR TERM /THROUGH THURSDAY/
As of 137 AM EDT Wednesday...Pleasant weather will continue overnight, though mid/high clouds will gradually increase as a warm front approaches the region. Moisture will start to increase late, but not enough to make for a muggy night. Lows will range from around 50F to around 60F.

The warm front will lift across the region Wednesday morning, ushering in a warmer and muggier airmass. Still, an abundance of dry air will remain at low levels, so expect this front will pass through with little fanfare beyond a mid cloud deck. Winds will become breezy out of the south/southwest, especially in the Champlain Valley due to channeling and along the northern slopes of the Adirondacks due to downsloping. Gusts of 25 to 30 mph will be possible in these locations through the daylight hours, with 20 to 25 mph elsewhere. Wind gusts will subside around sunset as we lose daytime heating, though sustained winds will remain 10-15 mph into the evening, especially in those areas mentioned above. Highs will be similar to today with most locations warming into the 80s.

For Wednesday evening and overnight, the focus will be a frontal boundary/surface trough which will cross from west to east. Moisture will pool along this feature, with PWATs approaching 2 inches. The associated showers and thunderstorms will likewise move eastward, entering the St Lawrence Valley roughly between 7 and 9 pm. The boundary will wash out as it moves eastward, and that combined with loss of daytime heating will allow the showers and thunderstorms to wane through the evening and overnight hours. Still, expect precipitation to make it into the Champlain Valley around 11 pm, then spreading across VT after midnight. The lack of strong forcing and instability will limit any severe threat, though brief heavy downpours will be possible given the very high PWATs. Lows will be in the 60s to near 70F.

SHORT TERM /THURSDAY NIGHT/
As of 315 PM EDT Tuesday...By Thursday morning, most of the precipitation associated with the prefrontal trough will come to an end. Mostly dry weather can be expected for Independence Day, although a spot shower or two will be possible as the frontal boundary passes across the region. Daytime high temperatures will climb into the 80s, and feel quite humid with dewpoints in the 60s.
Overnight lows will drop into the upper 50s and 60s.

LONG TERM /FRIDAY THROUGH TUESDAY/
As of 315 PM EDT Tuesday...Seasonable weather can be expected for Friday as a brief period of ridging moves overhead before an upper- level shortwave moves into the Great Lakes late Friday into early Saturday morning, bringing more chances for precipitation.
Southwesterly flow will usher in a moisture rich airmass, with PWAT values nearing 2 inches, although the greatest moisture looks to stay to our south across the mid- Atlantic into southern New England.
Model soundings support the idea of some stronger thunderstorms possible, with CAPE values nearing 1000 J/kg and 0-6km shear in excess of 40 knots, although this will depend on the timing of the cold frontal passage and if the best instability coincides with the greatest forcing. With the abundant moisture, there is a threat for any heavy rainfall within any stronger storms that develop, which will have to be monitored over the next few days. Conditions look to trend drier toward the beginning of next week. Temperatures look to be seasonably warm towards the weekend, with high temperatures in the upper 70s and 80s, with dewpoints largely in the 60s.

AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
Through 06Z Thursday...Pervasive VFR continues with high clouds edging in west to east overnight. Winds will become gusty out of the south this afternoon. Gusts 20-25kts will likely be common for BTV/PBG/MSS. Otherwise, dry conditions continue through the period until 21Z for MSS when the first showers will be moving east out of Canada. Only other concern will be a brief period of LLWS after 00z.

Outlook...

Independence Day: VFR. NO SIG WX.
Thursday Night: VFR. NO SIG WX.
Friday: VFR. NO SIG WX.
Friday Night: VFR. Chance SHRA, Slight chance TSRA.
Saturday: Mainly VFR, with areas MVFR possible. Chance SHRA, Slight chance TSRA.
Saturday Night: Mainly VFR, with local MVFR possible. Chance SHRA, Slight chance TSRA.
Sunday: Mainly VFR, with local MVFR possible. Slight chance SHRA.

BTV WATCHES/WARNINGS/ADVISORIES
VT...None.
NY...None.

Sorel
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Tue -- 12:37 AM EDT     0.68 meters High Tide
Tue -- 01:54 AM EDT     Moonrise
Tue -- 05:06 AM EDT     Sunrise
Tue -- 08:20 AM EDT     0.66 meters Low Tide
Tue -- 02:04 PM EDT     0.68 meters High Tide
Tue -- 06:02 PM EDT     Moonset
Tue -- 08:46 PM EDT     Sunset
Tue -- 10:00 PM EDT     0.66 meters Low Tide
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Sorel, Quebec, Tide feet

Islets Perces
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Tue -- 01:32 AM EDT     0.97 meters High Tide
Tue -- 01:53 AM EDT     Moonrise
Tue -- 05:05 AM EDT     Sunrise
Tue -- 07:40 AM EDT     0.95 meters Low Tide
Tue -- 03:05 PM EDT     0.99 meters High Tide
Tue -- 06:02 PM EDT     Moonset
Tue -- 08:46 PM EDT     Sunset
Tue -- 09:23 PM EDT     0.97 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Islets Perces, Quebec, Tide feet

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