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Updated: February 28, 2001
See definitions.
Maryland And Delaware. -- Streamflow increased throughout the entire bi-state area. In Western Maryland and on the upper Potomac River, streamflow increased, moving from the below into the normal range. In Central Maryland, flows increased slightly, and moved from the normal into the below normal range. Flows on the lower Potomac River increased, and moved from the below into the normal range. In north east Maryland, flows increased, and remain in the normal range. On the Eastern Shore, streamflow increased, also remaining in the normal range.
Contents of the Baltimore reservoir system increased, and near month's end were 87 percent of capacity. End of month contents = 66,370 million gallons.
Ground-water levels, near months end, were below average throughout most of the bi-state area: In western Maryland, ground water levels rose, and remain in the below-average range. In west-central Maryland, ground water levels increased,and remain in the below-average range. In central Maryland, water levels increased, also remaining in the below-average range. On the Eastern Shore, water levels rose, and remain in the above-average range.
[% = percent; ft³/s =
cubic feet per second; in. = inches; Date = day of month;
1 = Includes diversions for water supply; * = Above normal range; #
= Below normal range]
|
Station name |
Discharge |
Runoff |
Cumulative runoff |
Maximum |
Minimum |
|||
|
Mean |
Percent of |
Total |
Percent of |
Departure |
||||
|
Potomac R at |
4150 |
80 |
1.38 |
3.41 |
48 |
-3.69 |
8940 |
2320 |
|
Seneca C at |
#102 |
76 |
1.05 |
4.49 |
68 |
-2.11 |
210 |
76 |
|
Potomac R near |
11400 |
71 |
1.03 |
2.92 |
41 |
-4.18 |
27600 |
7780 |
|
Deer C near |
110 |
74 |
1.21 |
5.01 |
68 |
-2.39 |
157 |
88 |
|
Choptank R near |
254 |
117 |
2.34 |
7.04 |
105 |
+0.34 |
605 |
154 |
Normal is defined as the median (50th percentile) of long-term monthly-mean discharge or monthly total runoff. The normal range is defined as discharge or runoff falling between the 75th and 25th percentiles of long-term records.
|
Well number |
Well name |
Previous month |
Reporting month |
||
|
Date measured |
Level |
Date measured |
Level |
||
|
GA-Bc 1 |
Accident |
01-30 |
12.05 |
02-27 |
10.43 |
|
WA-Be 2 |
Fort Frederick |
01-30 |
32.51 |
02-27 |
30.56 |
|
MO-Eh 20 |
Fairland |
01-30 |
13.35 |
02-27 |
12.61 |
|
Jd 42-03 |
Camden |
01-30 |
6.17 |
02-26 |
5.77 |
|
Name |
Date measured |
Water level |
Departure from
average |
Change since
previous month |
Change since
previous year |
Last reversal |
|
|
Change |
Date |
||||||
|
Accident |
02-27 |
10.43 |
-0.58 |
+1.62 |
-2.20 |
+1.62 |
Feb 2001 |
|
Fort Frederick |
02-27 |
30.56 |
-2.07 |
+1.95 |
+2.03 |
+3.49 |
Dec 2000 |
|
Fairland |
02-27 |
12.61 |
-1.18 |
+0.74 |
-1.57 |
+1.73 |
Nov 2000 |
|
Camden |
02-26 |
5.77 |
+0.54 |
+0.40 |
+1.24 |
+0.81 |
Dec 2000 |
Last day: 7870 cubic feet per second (estimated).
Reference period: 1971 to 2000.
Total flow into the Chesapeake Bay was about 41.7 billion gallons per day, (BGD) 61 percent of average. February average: 68.0 BGD.
The three largest rivers flowing into the Chesapeake Bay contributed about 80 percent of total inflow in January, with individual contributions of:
|
River |
Percentage of total
inflow |
|
|
|
|
Susquehanna River |
57 |
|
Potomac River |
23 |
|
James River |
8 |
|
|
|
|
Total |
88 |
|
Other rivers |
12 |
Period of record: 1937 to Present.
Monthly Water Conditions in the Chesapeake Bay Region
Northeast Regional Climate Center (from Cornell University)
Northeast Climate Impacts - monthly
For additional information, contact:
info@md.water.usgs.gov or call 410-238-4200.