Is it true the the northern end of a lake always worms faster and can someone explain why

Probably because the sun is in the south and its rays hit the north end with more density.

Most rivers flow north to south and man made reservoirs are dammed at the narrow deepest area of a river valley, thus the south end is deeper water, the north end shallow. Shallow water warms faster than the deeper water. The north west area usually get the longest period of sun light to warm the water.

Hope that helps!

Tom

PS, most bass jargon comes from the heartland of bassdom, big reserviors.

Thanks Tom iv got a tournament the 10-13 of april we have a huge warming trend coming the water temp is 45 now (well that's what Internet says) any tips the water should be stained and is up and rising

Raising water levels flood new feeding zones! Bass usually move up when water raises and pull back when it falls. Spring up Fall down is an old saying that means the direction the bass are facing.

Generally the larger bass tend to stay near ingress areas where the water is flooding and don't move too far back into new areas. You only talking about 2 weeks, think early pre spawn, maybe water temps rising about 10 degrees.

Tom

Good info about the angle of the sun and warming the water. Also most cold front weather comes from the northwest and the north west section of the lake is often protected by the bank of the lake, hills next to lake, forests along the north west bank. This all helps shelter the water in this area. The south end gets the full effects of the cold fronts and their winds.

Most rivers flow north to south and man made reservoirs are dammed at the narrow deepest area of a river valley, thus the south end is deeper water, the north end shallow. Shallow water warms faster than the deeper water. The north west area usually get the longest period of sun light to warm the water.

Hope that helps!

Tom

PS, most bass jargon comes from the heartland of bassdom, big reserviors.

like usually tom is right, but also The north side get some relief(wind block) from the north wind.  Where the south side takes on the north wind and it cools it.

Thx tom so say if the water temp is about 54-58 what and where should be a good key area to target

Aside from what's stated above, south winds are usually warmer. Wind will actually push surface water and stack it up so a warmer south wind will stack warmer water on the north end of the lake. (this effect is minimalized if there's  a lot of current in the area)

Northwest end always warms faster.