| Location |
Low-End
Amount |
Expected
Amount |
High-End
Amount |
Chance of Seeing More Than |
| Alexandria, VA |
3″ |
7″ |
12″ |
99% |
98% |
96% |
89% |
72% |
50% |
15% |
0% |
| Annapolis, MD |
2″ |
8″ |
11″ |
95% |
94% |
91% |
79% |
63% |
43% |
8% |
0% |
| Baltimore, MD |
1″ |
7″ |
10″ |
95% |
92% |
88% |
76% |
56% |
33% |
3% |
0% |
| Bel Air, MD |
<1″ |
6″ |
10″ |
91% |
87% |
81% |
67% |
48% |
27% |
4% |
0% |
| Bethesda, MD |
4″ |
7″ |
12″ |
100% |
98% |
96% |
90% |
73% |
50% |
15% |
0% |
| Centreville, VA |
3″ |
6″ |
12″ |
100% |
98% |
96% |
88% |
70% |
48% |
13% |
0% |
| Charlottesville, VA |
1″ |
4″ |
8″ |
95% |
90% |
82% |
60% |
35% |
16% |
1% |
0% |
| Culpeper, VA |
2″ |
5″ |
10″ |
99% |
97% |
94% |
79% |
53% |
28% |
3% |
0% |
| Cumberland, MD |
2″ |
7″ |
12″ |
97% |
96% |
93% |
82% |
64% |
44% |
10% |
0% |
| Dumfries, VA |
3″ |
6″ |
11″ |
99% |
97% |
95% |
83% |
62% |
38% |
6% |
0% |
| Elkton, MD |
0″ |
6″ |
10″ |
89% |
84% |
78% |
61% |
42% |
23% |
2% |
0% |
| Franklin, WV |
3″ |
5″ |
11″ |
100% |
100% |
98% |
89% |
65% |
39% |
7% |
0% |
| Frederick, MD |
1″ |
7″ |
10″ |
94% |
91% |
87% |
74% |
55% |
33% |
3% |
0% |
| Fredericksburg, VA |
1″ |
6″ |
8″ |
96% |
93% |
88% |
70% |
43% |
17% |
0% |
0% |
| Front Royal, VA |
3″ |
6″ |
12″ |
100% |
98% |
96% |
87% |
69% |
46% |
13% |
0% |
| Hagerstown, MD |
1″ |
6″ |
10″ |
94% |
91% |
85% |
70% |
48% |
25% |
2% |
0% |
| Harrisonburg, VA |
2″ |
4″ |
9″ |
99% |
96% |
92% |
73% |
46% |
23% |
3% |
0% |
| Keysers Ridge, MD |
4″ |
9″ |
15″ |
99% |
98% |
97% |
92% |
82% |
67% |
32% |
3% |
| La Plata, MD |
3″ |
6″ |
11″ |
99% |
98% |
96% |
85% |
65% |
41% |
8% |
0% |
| Leesburg, VA |
3″ |
7″ |
12″ |
99% |
98% |
96% |
88% |
71% |
48% |
13% |
0% |
| Lexington Park, MD |
1″ |
5″ |
9″ |
97% |
94% |
89% |
69% |
42% |
19% |
1% |
0% |
| Lineboro, MD |
<1″ |
6″ |
11″ |
90% |
86% |
80% |
66% |
48% |
30% |
8% |
0% |
| Luray, VA |
3″ |
5″ |
11″ |
100% |
99% |
96% |
84% |
61% |
38% |
9% |
0% |
| Martinsburg, WV |
1″ |
7″ |
11″ |
95% |
92% |
88% |
75% |
55% |
32% |
4% |
0% |
| Mount Storm, WV |
4″ |
8″ |
13″ |
100% |
99% |
97% |
92% |
79% |
60% |
22% |
1% |
| Oakland, MD |
4″ |
9″ |
14″ |
100% |
99% |
97% |
93% |
82% |
67% |
29% |
3% |
| Orange, VA |
1″ |
5″ |
9″ |
96% |
93% |
86% |
66% |
40% |
20% |
1% |
0% |
| Petersburg, WV |
3″ |
6″ |
12″ |
100% |
99% |
97% |
87% |
64% |
40% |
12% |
0% |
| Prince Frederick, MD |
3″ |
6″ |
12″ |
98% |
97% |
95% |
84% |
67% |
47% |
15% |
0% |
| Rockville, MD |
3″ |
7″ |
12″ |
98% |
97% |
95% |
86% |
69% |
47% |
12% |
0% |
| Romney, WV |
3″ |
7″ |
12″ |
99% |
98% |
96% |
89% |
73% |
50% |
13% |
0% |
| Silver Spring, MD |
4″ |
7″ |
12″ |
100% |
98% |
96% |
90% |
73% |
50% |
15% |
0% |
| Spruce Knob, WV |
4″ |
6″ |
13″ |
100% |
100% |
99% |
95% |
78% |
55% |
18% |
1% |
| Staunton, VA |
1″ |
3″ |
9″ |
97% |
95% |
88% |
65% |
41% |
21% |
3% |
0% |
| Upper Marlboro, MD |
3″ |
7″ |
12″ |
98% |
97% |
95% |
85% |
68% |
47% |
12% |
0% |
| Warrenton, VA |
3″ |
6″ |
11″ |
100% |
99% |
96% |
88% |
68% |
44% |
9% |
0% |
| Washington, DC |
4″ |
7″ |
13″ |
100% |
98% |
96% |
90% |
73% |
51% |
16% |
0% |
| Westminster, MD |
1″ |
6″ |
11″ |
94% |
91% |
86% |
73% |
54% |
34% |
7% |
0% |
| Winchester, VA |
3″ |
7″ |
12″ |
100% |
99% |
96% |
89% |
70% |
46% |
10% |
0% |
|