Rip76 wrote: ↑Mon Jul 08, 2024 12:07 pm
So many trees down in the Woodlands.
Sorry to hear that. In CLL things have been getting real the last couple of hours N40 G60. Propped up the fence on one side. Some branched are broken. If this keeps up much longer there will be more trees down.
Power is out for part of College Station. We're lucky so far.
I mean, and this is the wrap around west side! Huntsville and Madisonville get getting pounded
My class is in applied science/biomechanics - so I took the opportunity to introduce the fluid drag equation.
Fd = 1/2Cd • Ap • rho • v[sqr]
So, air velocity is a power function. Therefore, the strength of 80 mph hurricane winds is FOUR times greater than a TS with 40 mph winds. Y'all are seing this for real.
When Beryl’s winds were 160 mph the force generated by the wind was 4X greater than at 80 mph and 16X greater than 40 mph. Imagine a storm 16X more forceful than our tropical storm conditions!
To calculate energy we would integrate the proportional change in velocity.
If Fd = v[sqr], then Energy = C + 1/3∆v[cubed]
So Beryl as a 160 mph cat 5 had winds that produced 21/3X more energy than 40 mph TS winds.
The N40 G60 winds we've been seeing in CLL late this morning and early this afternoon are enough for me! Wow, that last gust was close to 70 mph (Jim Cantore kneeling)
I can't imagine E70 G 90 near the coast.