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Live/Water/Maryland/Columbia - Little Patuxent River

Columbia - Little Patuxent River

A water gauge in Howard County, Maryland. Its stage was 289.50 ft as of Oct 16, 11:40 AM EDT.

Gauge CSEM2Howard County, MarylandEvery gauge in Maryland

Stage now
289.50 ftreported Oct 16, 11:40 AM EDT
24 hour change
Rose 0.01 ftsince Oct 15, 11:40 AM
Elevation
311 ftabove sea level
County
Howard County
Position
39.2077° N, 76.8573° W
Record since
2016

Water level

Columbia - Little Patuxent River

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 Columbia - Little Patuxent River: the water from 289.48 to 289.50 feet of stage, the latest 289.50 feet.WATER LEVEL, 24 HOURSFTHIGH 289.50 FT, OCT 15, 10:40 PM · LOW 289.48 FT, OCT 15, 4:40 PM289.44289.46289.48289.50289.52289.543 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM289.50
Latest
289.50 ftOct 16, 11:40 AM
Highest
289.50 ftOct 15, 10:40 PM
Lowest
289.48 ftOct 15, 4:40 PM
Range
0.02 fthighest less lowest
Change
Rose 0.01 ftsince Oct 15, 12:40 PM
Readings
24
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 11:40 AM289.50
Oct 16, 10:40 AM289.50
Oct 16, 9:40 AM289.50
Oct 16, 8:40 AM289.50
Oct 16, 7:40 AM289.50
Oct 16, 6:40 AM289.50
Oct 16, 5:40 AM289.49
Oct 16, 4:40 AM289.48
Oct 16, 3:40 AM289.49
Oct 16, 2:40 AM289.49
Oct 16, 1:40 AM289.49
Oct 16, 12:40 AM289.48
Oct 15, 11:40 PM289.49
Oct 15, 10:40 PM289.50
Oct 15, 9:40 PM289.49
Oct 15, 8:40 PM289.49
Oct 15, 7:40 PM289.49
Oct 15, 6:40 PM289.48
Oct 15, 5:40 PM289.48
Oct 15, 4:40 PM289.48
Oct 15, 3:40 PM289.49
Oct 15, 2:40 PM289.49
Oct 15, 1:40 PM289.49
Oct 15, 12:40 PM289.49
Water level, 7 days at Columbia - Little Patuxent River: the water from 289.31 to 292.71 feet of stage, the latest 289.50 feet.WATER LEVEL, 7 DAYSFTHIGH 292.71 FT, OCT 11, 3:45 PM · LOW 289.31 FT, OCT 10, 7:45 AM289290291292293294Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16289.50
Latest
289.50 ftOct 16, 11:40 AM
Highest
292.71 ftOct 11, 3:45 PM
Lowest
289.31 ftOct 10, 7:45 AM
Range
3.40 fthighest less lowest
Change
Rose 0.17 ftsince Oct 9, 12:45 PM
Readings
210
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 11:40 AM289.50
Oct 16, 10:40 AM289.50
Oct 16, 9:40 AM289.50
Oct 16, 8:40 AM289.50
Oct 16, 7:40 AM289.50
Oct 16, 6:40 AM289.50
Oct 16, 5:40 AM289.49
Oct 16, 4:40 AM289.48
Oct 16, 3:40 AM289.49
Oct 16, 2:40 AM289.49
Oct 16, 1:40 AM289.49
Oct 16, 12:40 AM289.48
Oct 15, 11:40 PM289.49
Oct 15, 10:40 PM289.50
Oct 15, 9:40 PM289.49
Oct 15, 8:40 PM289.49
Oct 15, 7:40 PM289.49
Oct 15, 6:40 PM289.48
Oct 15, 5:40 PM289.48
Oct 15, 4:40 PM289.48
Oct 15, 3:40 PM289.49
Oct 15, 2:40 PM289.49
Oct 15, 1:40 PM289.49
Oct 15, 12:40 PM289.49
Oct 15, 11:40 AM289.49
Oct 15, 10:40 AM289.49
Oct 15, 9:40 AM289.49
Oct 15, 8:40 AM289.50
Oct 15, 7:40 AM289.49
Oct 15, 6:40 AM289.49
Oct 15, 5:40 AM289.50
Oct 15, 4:40 AM289.51
Oct 15, 3:40 AM289.52
Oct 15, 2:40 AM289.52
Oct 15, 1:40 AM289.53
Oct 15, 12:40 AM289.53
Oct 14, 11:40 PM289.54
Oct 14, 10:40 PM289.54
Oct 14, 9:40 PM289.54
Oct 14, 8:40 PM289.55
Oct 14, 7:40 PM289.55
Oct 14, 6:40 PM289.56
Oct 14, 5:40 PM289.56
Oct 14, 4:40 PM289.56
Oct 14, 3:40 PM289.57
Oct 14, 2:40 PM289.57
Oct 14, 1:45 PM289.57
Oct 14, 12:45 PM289.57
Oct 14, 11:40 AM289.58
Oct 14, 10:40 AM289.58
Oct 14, 9:40 AM289.59
Oct 14, 8:40 AM289.59
Oct 14, 7:40 AM289.59
Oct 14, 6:45 AM289.61
Oct 14, 5:40 AM289.61
Oct 14, 4:40 AM289.62
Oct 14, 3:45 AM289.63
Oct 14, 2:40 AM289.64
Oct 14, 1:40 AM289.64
Oct 14, 12:45 AM289.65
Oct 13, 11:45 PM289.65
Oct 13, 10:40 PM289.66
Oct 13, 9:45 PM289.67
Oct 13, 8:40 PM289.68
Oct 13, 7:40 PM289.69
Oct 13, 6:40 PM289.70
Oct 13, 5:40 PM289.71
Oct 13, 4:45 PM289.73
Oct 13, 3:45 PM289.73
Oct 13, 2:40 PM289.75
Oct 13, 1:45 PM289.76
Oct 13, 12:40 PM289.77
Oct 13, 11:45 AM289.78
Oct 13, 10:45 AM289.80
Oct 13, 9:40 AM289.81
Oct 13, 8:40 AM289.83
Oct 13, 7:45 AM289.85
Oct 13, 6:45 AM289.87
Oct 13, 5:45 AM289.89
Oct 13, 4:40 AM289.91
Oct 13, 3:45 AM289.93
Oct 13, 2:45 AM289.95
Oct 13, 1:40 AM289.98
Oct 13, 12:45 AM290.02
Oct 12, 11:45 PM290.06
Oct 12, 10:40 PM290.09
Oct 12, 9:40 PM290.13
Oct 12, 8:45 PM290.17
Oct 12, 7:40 PM290.22
Oct 12, 6:40 PM290.28
Oct 12, 5:45 PM290.34
Oct 12, 4:40 PM290.42
Oct 12, 3:45 PM290.49
Oct 12, 2:40 PM290.58
Oct 12, 1:40 PM290.69
Oct 12, 12:45 PM290.80
Oct 12, 11:40 AM290.95
Oct 12, 10:40 AM291.15
Oct 12, 9:40 AM291.41
Oct 12, 8:45 AM291.61
Oct 12, 7:40 AM291.77
Oct 12, 6:40 AM291.80
Oct 12, 5:45 AM291.72
Oct 12, 4:55 AM291.44
Oct 12, 3:45 AM291.04
Oct 12, 2:40 AM290.92
Oct 12, 1:45 AM291.00
Oct 12, 12:45 AM291.18
Oct 11, 11:40 PM291.43
Oct 11, 10:45 PM291.69
Oct 11, 9:40 PM292.06
Oct 11, 8:45 PM292.38
Oct 11, 7:40 PM292.55
Oct 11, 6:45 PM292.65
Oct 11, 5:45 PM292.71
Oct 11, 4:40 PM292.71
Oct 11, 3:45 PM292.71
Oct 11, 2:40 PM292.57
Oct 11, 1:55 PM292.40
Oct 11, 12:40 PM292.17
Oct 11, 11:50 AM291.98
Oct 11, 10:50 AM290.94
Oct 11, 9:50 AM290.21
Oct 11, 8:45 AM289.64
Oct 11, 7:40 AM289.47
Oct 11, 6:45 AM289.36
Oct 11, 5:45 AM289.34
Oct 11, 4:40 AM289.33
Oct 11, 3:45 AM289.33
Oct 11, 2:45 AM289.33
Oct 11, 1:45 AM289.33
Oct 11, 12:45 AM289.33
Oct 10, 11:40 PM289.33
Oct 10, 10:40 PM289.33
Oct 10, 9:40 PM289.33
Oct 10, 8:40 PM289.33
Oct 10, 7:45 PM289.33
Oct 10, 6:45 PM289.33
Oct 10, 5:45 PM289.33
Oct 10, 4:45 PM289.33
Oct 10, 3:45 PM289.33
Oct 10, 2:45 PM289.33
Oct 10, 1:45 PM289.33
Oct 10, 12:45 PM289.33
Oct 10, 11:45 AM289.33
Oct 10, 10:45 AM289.32
Oct 10, 9:45 AM289.32
Oct 10, 8:45 AM289.31
Oct 10, 7:45 AM289.31
Oct 10, 6:45 AM289.33
Oct 10, 5:45 AM289.33
Oct 10, 4:45 AM289.33
Oct 10, 3:45 AM289.33
Oct 10, 2:45 AM289.33
Oct 10, 1:45 AM289.33
Oct 10, 12:45 AM289.33
Oct 9, 11:45 PM289.33
Oct 9, 10:45 PM289.33
Oct 9, 9:45 PM289.33
Oct 9, 8:45 PM289.33
Oct 9, 7:45 PM289.33
Oct 9, 6:45 PM289.33
Oct 9, 5:45 PM289.33
Oct 9, 4:45 PM289.33
Oct 9, 3:45 PM289.33
Oct 9, 2:45 PM289.33
Oct 9, 1:45 PM289.33
Oct 9, 12:45 PM289.33
Water level, 30 days at Columbia - Little Patuxent River: the water from 289.25 to 292.71 feet of stage, the latest 289.50 feet.WATER LEVEL, 30 DAYSFTHIGH 292.71 FT, OCT 11, 3:45 PM · LOW 289.25 FT, SEP 17, 5:50 AM289290291292293294Sep 16Sep 21Sep 26Oct 1Oct 6Oct 11289.50
Latest
289.50 ftOct 16, 11:40 AM
Highest
292.71 ftOct 11, 3:45 PM
Lowest
289.25 ftSep 17, 5:50 AM
Range
3.46 fthighest less lowest
Change
Rose 0.23 ftsince Sep 16, 12:50 PM
Readings
766
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 16289.50289.48289.49289.5012
Oct 15289.53289.48289.50289.4924
Oct 14289.65289.54289.58289.5424
Oct 13290.02289.65289.80289.6524
Oct 12291.80290.06291.01290.0639
Oct 11292.71289.33291.22291.4351
Oct 10289.33289.31289.33289.3324
Oct 9289.34289.32289.33289.3324
Oct 8289.35289.33289.34289.3424
Oct 7289.35289.34289.35289.3523
Oct 6289.39289.36289.37289.3624
Oct 5289.43289.39289.41289.3924
Oct 4289.46289.41289.43289.4324
Oct 3289.54289.45289.48289.4723
Oct 2289.85289.35289.45289.6427
Oct 1289.38289.36289.37289.3724
Sep 30289.39289.37289.38289.3823
Sep 29289.44289.39289.41289.3924
Sep 28289.58289.44289.49289.4424
Sep 27289.62289.50289.57289.6024
Sep 26289.64289.38289.43289.6224
Sep 25289.47289.40289.43289.4024
Sep 24289.67289.48289.55289.4824
Sep 23290.49289.68290.08289.6823
Sep 22290.50289.70290.14290.4928
Sep 21289.75289.34289.42289.7525
Sep 20289.65289.29289.43289.4325
Sep 19289.34289.31289.32289.3122
Sep 18289.45289.34289.38289.3424
Sep 17289.48289.25289.35289.4525
Sep 16289.28289.27289.27289.2812

How it reports

Schedule
every houron the hour's :40 and :45
Reports received, 24 hours
24 of 24100% of its schedule
Reports received, 7 days
168 of 168100% of its schedule, 206 reports in all
Longest silence, 7 days
65 minfrom Oct 10, 11:40 PM
Latest report
Oct 16, 12:40 AMlocal time
Time to reach Storm Station
13 min9 in 10 within 18 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 score98.0of 100

Maryland median
89.0the median score of 736 stations
Scoring higher
109stations in Maryland
Sharing its score
7ranks 110 to 116
Points deducted
2.01.1 arrival, 0.8 forecast check, 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
MD-PG-43rank 109; ahead on 247 score 98.1 against 98.0
Next below
GRDM2rank 111; behind on reports received 100% against 99.4%

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 1089.59.0 of 10 pointsMaryland median 94.0half its reports arrived within 15 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 Columbia - Little Patuxent River

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.