Spring rains-check river gauges

[scblade27]

Sorry, by "sucked out" I meant by humans. Your description of the water pressure and table is interesting though. I think I am getting a fairly good grasp of how it all works.

[Me]

I'm supposed to be figuring commissions for my sales team, but I'm not.... I am Googling hydrostatic vs hydraulic though. I think I need to ask physicist dive buddy.....

I need to go diving.....I was just there last week, but I guess I need to go back.

[Jerry]

It is called hydraulic gradient. It really isn't much different from a stream; water in an aquifer will flow from the high point to the low point. Reckon that's why springs are along the river. The river surface is the potentiometric surface for the aquifer at that point.

Flood water is only a temporary fix to spring flow; we need a lot of what we are getting right now. Alot of slow soaking rain.

Jerry

[JahJahwarrior]

SCBlade: yes, humans do also suck water from the aquifer, which can lower levels. It gets really interesting when you consider things such as irrigation. Water is pulled from the aquifer, and dropped on to the surface. Well, in Florida there are actually multiple aquifers: Surficial, Sand & Gravel, Biscayne, Intermediate and Floridan, generally separated by a confining unit of clayey limestone which is mostly impermeable. Crack do form in these layers (just like they form in all limestone: joints, fractures, etc, caused by many things such as the tidal bulge) and then water can move through. So, we pull water from, say, the Floridan or Intermediate aquifer, and spray it on our plants, where it then falls down and soaks in to the Surficial aquifer. We have not only reduced the hydraulic head of the Intermediate or Floridan, but we have increased the water weight on top of it. This will lead to sinkholes in extreme cases: look at when the most sinkholes form...I believe it's spring/early summer, march april may june, one of those months. Right about then, multiple factors can coincide to load up the surficial aquifer, such as those april showers that bring may flowers, right after a dry period when we've been irrigating from the deeper aquifers. Infact, if you watch, you'll probably notice that a lot of sinkholes form right around freezes as well: farmers irrigate their crops overnight...

I find this stuff fascinating, and after spending the semester in an independent study with a geology professor here at UCF, I might write up an "Idiots Guide to Florida Karst Formation and Processes" or something and submit it to one of the magazines. I'm by no means an expert, but I've learned a lot over the past few months and would love to have some good reason to summarize all my notes

[jeandiver]

Suwannee as of 4:45 PM EDT , Monday April 1st is up 1-2 feet from White Springs down to Dowling Park ... Sante Fe at Worthington Springs up about a foot.
Probably going to go up more too.
Which probably isn't a bad thing , considering we need this rain SO BADLY !!!

Beano

[Kelly Jessop]

but we don't know if Devil's Eye ever has.

I think they found some 300 year old wood shards in the cave indicating it has reversed in its history.

[RN]

South Georgia since last Saturday has gotten over 7 inches of rain in spots,and I understand the Chipola will hit high levels. That translates to watch river guages because not only do I expect Madison to be blown,but other places including the Mill pond can be adversely effected.

[tomhauburn]

I'm not sure where he works, but Tom Hundley posted this on his facebook. I know he lives in Lake City

"The weather played an early April Fools joke on work when a barn flew through the main power line feeding the plant I work at cutting power off to every piece of equipment I needed to do orders with. No a fun day.... At least as far as I know no one was injured in the tornado that I know of. It was too dark outside to see much though."

From the terrible sentence I wrote you can tell I was tired. Worked a 16 hour day that day. It was not much better today to come back in at 11am and find the plant still not working. As it turns out it was a greenhouse and not a barn. But it did get picked up as those were high power line that are a lot higher than the normal ones. I think they said they replaced 900 ft of line..or maybe it was 900 yard. I still pretty whipped. Only worked 13 hours today. Two more days and I am on Vacation if it does not get canceled on me due to the problems. I really need this one!

[fno]

I heard secondhanded from a buddy that made the drive up to Madison today that it is blown out. Not sure if it's closed yet.

[Bob Cree]

I am the buddy, and we made the drive - now it is first hand. Fno is correct, Madison is definitely closed. Martz Sink was almost half way full up the steps and milky/near zero viz. Then chased the high water going south. Had a ok dive vis wise at Peacock past Challenge yesterday - the Peanut line was good, Olsen to Challenge sucked, Crossover - ehh, but have no clue what happened since yesterday - I expect it is or is getting ugly. Last night after peacock we stopped by Little River after hours - it was Super Clear (last night)...so we decided to dive LR today before it went under, we got there today and it was just a tannic, inward flowing cyclone...man that happened fast. Immediately called Cathy at Dive Outpost this morning about Cow and she said a team had gone in this morning - milky basin and tannic in the upstream - they never found the mainline. 2 for 2 - we chased the river rise south again and had a nice scooter dive at Manatee today (Friday). Only two teams the whole day. A GUE couple on RB's were just exiting at Catfish where we dropped our shoes. We were the second team and went in at Freidman and back until our scooters said enough. Vis was reasonable, chunky up front and some particulate in the back. Exited at Catfish. Flow was down from normal, but still a bit above Ginnie.

The choices are narrow, but some good diving to be had.

Gonna be here for a couple of weeks, so trying to find info on the JB area. Anybody? (RN, I left you a voicemail).