Weather & Wakes - Lake Hopatcong, NJ

Weather & Wakes - Lake Hopatcong, NJ All things weather and water related for you to make the most of your time on Lake Hopatcong.

My goodness the weather the next 2 days 🤩 Cool mornings, warm afternoons, good stuff. I will say, if you're jumping in t...
08/22/2025

My goodness the weather the next 2 days 🤩 Cool mornings, warm afternoons, good stuff. I will say, if you're jumping in the lake (or a pool), don't test the water; just do it! 1 week ago, the water was 82 degrees. Starting today: 72 😳 Pull the bandaid.

Sunday, maybe some filtered sun to start the day, and it'll be a bit more humid with thickening clouds for afternoon, but I think mainly dry. There will be a front moseying it's way to the PA/NJ boarder with scattered showers threatening 3-5pm. I say threatening because they are going to struggle to make it to our area until late evening and overnight, but they might sneak in earlier.

Monday will be a mixed day with periods of sun and clouds, but also a few spotty showers possible. Then, we're back to beautiful, albeit cooler for mid-week.

I'll be honest, I think we're done with 90s. Our last record high of 90 is 9/14, and the pattern doesn't support any heat. We very well might be done with any good strings of 80s too, at least for the next 2 weeks. Fall is coming folks. Average high is down to 80 on Tuesday, Sun Angle is down to 75%, and we're losing 2.5 minutes of daylight per day. Let's make the most of it!

🚤💥 Boaters: the lake is low, so trim up, and watch those shallow spots. At 8.44ft, we're now in a virtual three way tie for 3rd lowest level for this date going back to 2008, behind only 2015 and 2022. The shallowest docks are starting to be impacted, so know your draft and depth before it's too late.

☔ Not trying to pin down these events, but I started noticing a concerning trend for the next 10-14 days. Indications we...
08/22/2025

☔ Not trying to pin down these events, but I started noticing a concerning trend for the next 10-14 days. Indications were for a more active pattern, which still seems likely, however at the moment, it's looking like we might keep getting the shaft. The pattern is constant storms off the coast and dying fronts from the west. It's amazing how much rain looks to accumulate to the East and West over the 2 week duration. The GFS model does swing one of these systems over the area in the first week of September, but there's decent consistency that the big rain events might continue to miss NW NJ for a while, leaving us to rely on occasional thunderstorms. Time will tell.

It was a pretty uniform 0.60-0.70" rainfall (with a few higher spots) from our recent rain event. This brought the lake ...
08/21/2025

It was a pretty uniform 0.60-0.70" rainfall (with a few higher spots) from our recent rain event. This brought the lake up from 8.42' to 8.47', so still Low.

Thinking about those last few dips in the pool or the lake? Better get them in quick. Those chilly nights and mid-week c...
08/21/2025

Thinking about those last few dips in the pool or the lake? Better get them in quick. Those chilly nights and mid-week cool spells will continue to wreak havoc on water temperatures for the next several days, and it's only downhill from there. 😞

Guidance still indicating at least 0.20-0.60" for here, with pockets of 1-2", mainly this evening and tonight. Hoping fo...
08/20/2025

Guidance still indicating at least 0.20-0.60" for here, with pockets of 1-2", mainly this evening and tonight. Hoping for the higher end.

Today will certainly look dreary and might feature some sprinkles, but more organized showers should hold off until late...
08/20/2025

Today will certainly look dreary and might feature some sprinkles, but more organized showers should hold off until later in the afternoon. Heavy rain will be around, and I'm 🤞 that we get some, but I have a sinking feeling that heavier rain will be both North and South of us, leaving us with rain on the 0.25-0.50" scale. Not too far off will be totals of 1-3".

Showers end tonight or Thursday morning with very breezy conditions and clouds giving away to some sun later in the day. With highs only near 70, depending on your favorite season, it'll feel like October 1 and May 15.

Then, it's a big bounce back to normal Friday and Saturday with mostly sunny skies and near normal temps. Soak in those 2 days, because while Sunday should feature normal temps and weather, clouds will be thickening during the day, and I'm not sure how much sun there will be. I'm leaning dry at the moment, with showers not threatening until late evening.

It's the last summer weekend before Labor Day, and the average high temp dips below 80 next week. Sun angle will be down to 75%, sun set to 7:45p, ugh, I'm getting sad. Anyway, you better have plans to get out and enjoy!

Soo much chatter for a non-US-land falling hurricane, I feel obligated to post something. Locally, it'll be scattered sh...
08/19/2025

Soo much chatter for a non-US-land falling hurricane, I feel obligated to post something. Locally, it'll be scattered showers & storms Wednesday, maybe into early Thursday. Some storms may be heavy, so we'll see how that shakes out. Thursday is looking breezy as Erin passes by, but at least the weekend is looking less windy. I had a hunch my winds were a bit over done in my last post. Anyway, weekend outlook tomorrow. No swimming down the shore this week, but the lake is open for business. Make it a good one.

Also, I like sharing wind impacts every once in a while, so that's attached as well.

🙂 It's a much different feel this week with below normal high temperatures, much lower humidity, a fresh breeze, and no ...
08/18/2025

🙂 It's a much different feel this week with below normal high temperatures, much lower humidity, a fresh breeze, and no air quality alerts for a change. But check out the end of the week. Not the same summer sweltering weather, but I'll take normal temperatures. A bit breezier than I'd like, but that's okay. 😎

📉 With about 0.25-0.50" rain last week, the lake is only down about 1.2" or 0.10' from last Monday vs worst case 2"/week...
08/18/2025

📉 With about 0.25-0.50" rain last week, the lake is only down about 1.2" or 0.10' from last Monday vs worst case 2"/week. With the lake at about 8.50', we are currently at the 4th lowest level to date since 2008, and will likely be at the 3rd lowest to date next week. Forecast by next Monday is 8.34-8.41'.

60 day rainfall is 50% below normal, streamflows are at 10-40% of their normals, and there's no real relief in the immediate future. That said, I've been sharing for a while that I'm watching for the first week of September to turn a bit more active, and I'm still hopeful for that. Indications are that the middle of the month should have more normal rainfall which would help keep us the lake steady at least.🤞 While we're were 6 inches higher than we were in 2022, it might be a similar trajectory, in that we free fell until the start of September, and then a few rain events kept us pretty stable through the first three weeks of the month.

So trim up, watch your levels, and mid-week rain-dances please. 😉☔

Level lake level: https://waterdata.usgs.gov/monitoring-location/USGS-01455400/ =P7D&dataTypeId=continuous-00065-0

Only 1 weekend until Labor Day weekend? Oh my 😳.. But, look at the Lake Lineup for September into October! We've got peo...
08/18/2025

Only 1 weekend until Labor Day weekend? Oh my 😳.. But, look at the Lake Lineup for September into October! We've got people races, boat races, more boat races, and a lake wide adventure. Details below 🔻🔻

🏊‍♂️🚴‍♂️🏃‍♂️ Lake Hopatcong Triathlon Challenge
❓ 0.4mi swim, 12.4mi bike, 3.1mi run
💲 Support trisignup.com/WWLH25
🗓️ Saturday September 6th, 2025, 7a-11a
📍 Crescent Cove Beach Club
ℹ️ Live Run Give LLC
💻 LHTri.org

🚤 NJ Championships & Governors Cup
❓ Boat Races
🗓️ September 13-14, 2025
📍 Hopatcong State Park
ℹ️ Lake Hopatcong Racing Association (fan Page)
💻 https://lakehopatcongboatrace.com/

🚤 Lake Hopatcong Grand Prix
❓ Boat Races
🗓️ September 20-21, 2025
📍 SAT: Lake Forest Yacht Club
📍 SUN: Main Lake
ℹ️ Lake Hopatcong Grand Prix / OPA Racing
💻 https://lakehopatconggrandprix.com

🚴🚣🚶Lake Loop
❓ 20/40/62mi bike, or 2.5mi paddle, or 2mi hike
🗓️ October 5, 2025
📍 Hopatcong State Park
ℹ️ Lake Hopatcong Foundation
💻 lakeloop.org

😷 If you're a fan of breathing as much as I am, well I've got some good news for you. 😁 After one more glorious, hot, hu...
08/17/2025

😷 If you're a fan of breathing as much as I am, well I've got some good news for you. 😁 After one more glorious, hot, humid, summer day, we will see a big shift. Winds for next week not only will usher in cooler temps, but significantly better air quality.

Not only that, but for better or worse, outside of some 20-30% chances, major models are showing us "dry" through the end of the month, with only about 0.25" expected. That's not good for the lake level, nor my lawn. It does make these weekend forecasts pretty easy, and next weekend looks like another easy one 😎

This may very well be the last weekend with water temperature in the 80s 😭 Behind Erin passing by to the East, much cool...
08/16/2025

This may very well be the last weekend with water temperature in the 80s 😭 Behind Erin passing by to the East, much cooler air will usher in for next week, and by the time we recover, average high air temperatures will be down to 80, and Max Sun angle will be close to 75%. I hate these posts, but think of them as motivation to get out and enjoy.

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