sas and Saline Rivers, shown in table 2, is applicable to those parts of. the streams in the Coastal Plain of Pulaski and Saline Counties. Estimates of water-supply characteristics for two tributary streams. (sites 5 and 14, pi. 1) in the Coastal Plain are shown in table 3.
Circulation problems in the arm are often caused by hardening of the arteries. Circulation problems in any part of the body tend to come from fatty deposits in the blood vessels called plaque. The deposits can harden, constrict the flow of blood, or break off to form clots and blockages in any area of the body.
You could have a very mild case of Raynaud's phenomenon. This is where the blood vessels that bring blood to the tips of the fingers contract more than they are supposed to in response to cold weather. In its most severe form Raynaud's can cut off blood flow to the point where tissue in the fingers begins to die. You did not report any numbness or tingling in this area which suggests that the blood flow is still adequate. I don't think this is related to your arthritis.