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Live/Water/Maryland/Ellicott City - Hudson Branch

Ellicott City - Hudson Branch

A water gauge in Howard County, Maryland. Its stage was 253.44 ft as of Oct 16, 12:00 AM EDT.

Gauge ECHM2Howard County, MarylandEvery gauge in Maryland

Stage now
253.44 ftreported Oct 16, 12:00 AM EDT
24 hour change
No changesince Oct 15, 12:00 AM
Elevation
326 ftabove sea level
County
Howard County
Position
39.2687° N, 76.8097° W
Record since
2016

Water level

Ellicott City - Hudson Branch

Stage is the height of the water's surface above the gauge's own fixed zero, in feet, not the depth of the water. Every point drawn is a reading the gauge sent, at the time it sent it.

Water level, 24 hours at Ellicott City - Hudson Branch: the water from 253.44 to 253.44 feet of stage, the latest 253.44 feet.WATER LEVEL, 24 HOURSFTHIGH 253.44 FT, OCT 15, 1:00 AM · LOW 253.44 FT, OCT 15, 1:00 AM253.40253.42253.44253.46253.483 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16253.44
Latest
253.44 ftOct 16, 12:00 AM
Highest
253.44 ftOct 15, 1:00 AM
Lowest
253.44 ftOct 15, 1:00 AM
Range
0.00 fthighest less lowest
Change
No changesince Oct 15, 1:00 AM
Readings
24
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 12:00 AM253.44
Oct 15, 11:00 PM253.44
Oct 15, 10:00 PM253.44
Oct 15, 9:00 PM253.44
Oct 15, 8:00 PM253.44
Oct 15, 7:00 PM253.44
Oct 15, 6:00 PM253.44
Oct 15, 5:00 PM253.44
Oct 15, 4:00 PM253.44
Oct 15, 3:00 PM253.44
Oct 15, 2:00 PM253.44
Oct 15, 1:00 PM253.44
Oct 15, 12:00 PM253.44
Oct 15, 11:00 AM253.44
Oct 15, 10:00 AM253.44
Oct 15, 9:00 AM253.44
Oct 15, 8:00 AM253.44
Oct 15, 7:00 AM253.44
Oct 15, 6:00 AM253.44
Oct 15, 5:00 AM253.44
Oct 15, 4:00 AM253.44
Oct 15, 3:00 AM253.44
Oct 15, 2:00 AM253.44
Oct 15, 1:00 AM253.44
Water level, 7 days at Ellicott City - Hudson Branch: the water from 253.43 to 254.41 feet of stage, the latest 253.44 feet.WATER LEVEL, 7 DAYSFTHIGH 254.41 FT, OCT 11, 11:25 AM · LOW 253.43 FT, OCT 11, 9:00 PM253.3253.5253.8254.0254.3254.5254.8Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16253.44
Latest
253.44 ftOct 16, 12:00 AM
Highest
254.41 ftOct 11, 11:25 AM
Lowest
253.43 ftOct 11, 9:00 PM
Range
0.98 fthighest less lowest
Change
No changesince Oct 9, 12:55 AM
Readings
187
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 12:00 AM253.44
Oct 15, 11:00 PM253.44
Oct 15, 10:00 PM253.44
Oct 15, 9:00 PM253.44
Oct 15, 8:00 PM253.44
Oct 15, 7:00 PM253.44
Oct 15, 6:00 PM253.44
Oct 15, 5:00 PM253.44
Oct 15, 4:00 PM253.44
Oct 15, 3:00 PM253.44
Oct 15, 2:00 PM253.44
Oct 15, 1:00 PM253.44
Oct 15, 12:00 PM253.44
Oct 15, 11:00 AM253.44
Oct 15, 10:00 AM253.44
Oct 15, 9:00 AM253.44
Oct 15, 8:00 AM253.44
Oct 15, 7:00 AM253.44
Oct 15, 6:00 AM253.44
Oct 15, 5:00 AM253.44
Oct 15, 4:00 AM253.44
Oct 15, 3:00 AM253.44
Oct 15, 2:00 AM253.44
Oct 15, 1:00 AM253.44
Oct 15, 12:00 AM253.44
Oct 14, 11:00 PM253.44
Oct 14, 10:00 PM253.44
Oct 14, 9:00 PM253.44
Oct 14, 8:00 PM253.44
Oct 14, 7:00 PM253.44
Oct 14, 6:00 PM253.44
Oct 14, 5:00 PM253.44
Oct 14, 4:00 PM253.44
Oct 14, 3:00 PM253.44
Oct 14, 2:00 PM253.44
Oct 14, 1:00 PM253.44
Oct 14, 12:00 PM253.44
Oct 14, 11:00 AM253.44
Oct 14, 10:00 AM253.44
Oct 14, 9:00 AM253.44
Oct 14, 8:00 AM253.44
Oct 14, 7:00 AM253.44
Oct 14, 6:00 AM253.44
Oct 14, 5:00 AM253.44
Oct 14, 4:00 AM253.44
Oct 14, 3:00 AM253.44
Oct 14, 2:00 AM253.44
Oct 14, 1:00 AM253.44
Oct 14, 12:00 AM253.44
Oct 13, 11:00 PM253.44
Oct 13, 10:00 PM253.44
Oct 13, 9:00 PM253.44
Oct 13, 8:00 PM253.44
Oct 13, 7:00 PM253.44
Oct 13, 6:00 PM253.44
Oct 13, 5:00 PM253.44
Oct 13, 4:00 PM253.44
Oct 13, 3:00 PM253.44
Oct 13, 2:00 PM253.44
Oct 13, 1:00 PM253.44
Oct 13, 12:00 PM253.44
Oct 13, 11:00 AM253.44
Oct 13, 10:00 AM253.44
Oct 13, 9:00 AM253.44
Oct 13, 8:00 AM253.44
Oct 13, 7:00 AM253.44
Oct 13, 6:00 AM253.44
Oct 13, 5:00 AM253.44
Oct 13, 4:00 AM253.44
Oct 13, 3:00 AM253.44
Oct 13, 2:00 AM253.44
Oct 13, 1:00 AM253.44
Oct 13, 12:00 AM253.44
Oct 12, 11:00 PM253.44
Oct 12, 10:00 PM253.44
Oct 12, 9:00 PM253.44
Oct 12, 8:00 PM253.44
Oct 12, 7:00 PM253.44
Oct 12, 6:00 PM253.44
Oct 12, 5:00 PM253.44
Oct 12, 4:00 PM253.44
Oct 12, 3:00 PM253.44
Oct 12, 2:00 PM253.44
Oct 12, 1:00 PM253.44
Oct 12, 12:00 PM253.44
Oct 12, 11:00 AM253.44
Oct 12, 10:00 AM253.44
Oct 12, 9:00 AM253.44
Oct 12, 8:00 AM253.44
Oct 12, 7:00 AM253.44
Oct 12, 6:00 AM253.44
Oct 12, 5:00 AM253.44
Oct 12, 4:00 AM253.44
Oct 12, 3:00 AM253.44
Oct 12, 2:00 AM253.44
Oct 12, 1:00 AM253.44
Oct 12, 12:00 AM253.44
Oct 11, 11:00 PM253.44
Oct 11, 10:00 PM253.44
Oct 11, 9:00 PM253.43
Oct 11, 8:00 PM253.46
Oct 11, 7:00 PM253.51
Oct 11, 6:00 PM253.58
Oct 11, 5:50 PM253.58
Oct 11, 4:30 PM253.78
Oct 11, 3:45 PM254.06
Oct 11, 2:40 PM254.08
Oct 11, 1:55 PM254.17
Oct 11, 12:50 PM253.95
Oct 11, 11:55 AM254.19
Oct 11, 10:45 AM254.24
Oct 11, 9:30 AM253.96
Oct 11, 8:00 AM253.75
Oct 11, 7:55 AM253.69
Oct 11, 6:00 AM253.44
Oct 11, 5:00 AM253.44
Oct 11, 4:00 AM253.44
Oct 11, 3:00 AM253.44
Oct 11, 2:00 AM253.44
Oct 11, 1:00 AM253.44
Oct 11, 12:00 AM253.44
Oct 10, 11:00 PM253.44
Oct 10, 10:00 PM253.44
Oct 10, 9:00 PM253.44
Oct 10, 8:00 PM253.44
Oct 10, 7:00 PM253.44
Oct 10, 6:00 PM253.44
Oct 10, 5:00 PM253.44
Oct 10, 4:00 PM253.44
Oct 10, 3:00 PM253.44
Oct 10, 2:00 PM253.44
Oct 10, 1:00 PM253.44
Oct 10, 12:00 PM253.44
Oct 10, 11:00 AM253.44
Oct 10, 10:00 AM253.44
Oct 10, 9:00 AM253.44
Oct 10, 8:00 AM253.44
Oct 10, 7:00 AM253.44
Oct 10, 6:00 AM253.44
Oct 10, 5:00 AM253.44
Oct 10, 4:00 AM253.44
Oct 10, 3:00 AM253.44
Oct 10, 2:00 AM253.44
Oct 10, 12:55 AM253.44
Oct 9, 11:55 PM253.44
Oct 9, 10:55 PM253.44
Oct 9, 9:55 PM253.44
Oct 9, 8:55 PM253.44
Oct 9, 7:55 PM253.44
Oct 9, 6:55 PM253.44
Oct 9, 5:55 PM253.44
Oct 9, 4:55 PM253.44
Oct 9, 3:55 PM253.44
Oct 9, 2:55 PM253.44
Oct 9, 1:55 PM253.44
Oct 9, 12:55 PM253.44
Oct 9, 11:55 AM253.44
Oct 9, 10:55 AM253.44
Oct 9, 9:55 AM253.44
Oct 9, 8:55 AM253.44
Oct 9, 7:55 AM253.44
Oct 9, 6:55 AM253.44
Oct 9, 5:55 AM253.44
Oct 9, 4:55 AM253.44
Oct 9, 3:55 AM253.44
Oct 9, 2:55 AM253.44
Oct 9, 1:55 AM253.44
Oct 9, 12:55 AM253.44
Water level, 30 days at Ellicott City - Hudson Branch: the water from 253.43 to 254.41 feet of stage, the latest 253.44 feet.WATER LEVEL, 30 DAYSFTHIGH 254.41 FT, OCT 11, 11:25 AM · LOW 253.43 FT, SEP 21, 7:20 PM253.3253.5253.8254.0254.3254.5254.8Sep 16Sep 21Sep 26Oct 1Oct 6Oct 11253.44
Latest
253.44 ftOct 16, 12:00 AM
Highest
254.41 ftOct 11, 11:25 AM
Lowest
253.43 ftSep 21, 7:20 PM
Range
0.98 fthighest less lowest
Change
No changesince Sep 16, 12:50 AM
Readings
747
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 16253.44253.44253.44253.441
Oct 15253.44253.44253.44253.4424
Oct 14253.44253.44253.44253.4424
Oct 13253.44253.44253.44253.4424
Oct 12253.44253.44253.44253.4424
Oct 11254.41253.43253.83253.4443
Oct 10253.44253.44253.44253.4423
Oct 9253.44253.44253.44253.4424
Oct 8253.44253.44253.44253.4423
Oct 7253.44253.44253.44253.4423
Oct 6253.44253.44253.44253.4424
Oct 5253.44253.44253.44253.4424
Oct 4253.44253.44253.44253.4424
Oct 3253.44253.44253.44253.4424
Oct 2253.44253.44253.44253.4424
Oct 1253.44253.44253.44253.4424
Sep 30253.44253.44253.44253.4424
Sep 29253.44253.44253.44253.4424
Sep 28253.44253.44253.44253.4424
Sep 27253.44253.44253.44253.4424
Sep 26253.44253.43253.44253.4424
Sep 25253.44253.44253.44253.4424
Sep 24253.44253.44253.44253.4424
Sep 23253.46253.44253.44253.4424
Sep 22253.73253.44253.52253.4427
Sep 21253.96253.43253.52253.4431
Sep 20253.70253.44253.47253.4426
Sep 19253.44253.44253.44253.4422
Sep 18253.44253.44253.44253.4424
Sep 17253.44253.44253.44253.4424
Sep 16253.44253.44253.44253.4424

How it reports

Schedule
every houron the hour's :00 and :55
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
168 of 168100% of its schedule, 185 reports in all
Longest silence, 7 days
65 minfrom Oct 10, 12:55 AM
Latest report
Oct 15, 11:00 PMlocal time
Time to reach Storm Station
13 min9 in 10 within 16 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.

Ranking Statistics

247 score98.4of 100

Maryland median
89.0the median score of 736 stations
Scoring higher
87stations in Maryland
Sharing its score
10ranks 88 to 97
Points deducted
1.60.8 forecast check, 0.6 arrival, 0.2 accuracy
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Maryland median 99.0, 100.0, 92.1
Next above
LTCM2rank 93; ahead on longest silence 63 min against 65 min
Next below
CGSrank 97; behind on reports received 100% against 99.6%
Sharing its rank
1other stations, equal on every measure

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 35100.035.0 of 35 pointsMaryland median 82.1168 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1094.19.4 of 10 pointsMaryland median 94.0half its reports arrived within 13 min
  3. Continuityweight 10100.010.0 of 10 pointsMaryland median 100.0longest silence 65 min, on a schedule of one report every 60 min
  4. Accuracyweight 20-19.8 of 20 points, at the medianMaryland median 99.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianMaryland median 100.0-
  6. Forecast checkweight 10-9.2 of 10 points, at the medianMaryland median 92.1-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (3 h), none for 72 (72 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F

Near Ellicott City - Hudson Branch

How to read a gauge

A gauge measures the height of the water where it stands, its stage, in feet above a fixed mark at that gauge. Two gauges' stages are not comparable: each is measured from its own mark, and a reservoir's is often its height above sea level.

The stage shown is the latest the gauge reported, with the time it reported it. Storm Station hears each gauge on its own schedule and ranks it among its state's stations by its 247 score, how reliably it reports and how its readings hold up: that is its 247 rank.