Live/Water/Alaska/Healy - Nenana River

Healy - Nenana River

A water gauge in Yukon-koyukuk, Alaska. Its stage was 2,003.95 ft as of Oct 1, 9:15 AM AKDT.

Gauge NRWA2Yukon-koyukuk, AlaskaEvery gauge in Alaska

Stage now: 2,003.95 ftreported Oct 1, 9:15 AM AKDT
24 hour change: Fell 0.05 ftsince Sep 30, 9:15 AM
Rank: 541of 1,023 in Alaska, Oct 16
Elevation: 2,093 ftabove sea level
Area: Yukon-koyukuk
Position: 63.4578° N, 148.8031° W
Record since: 2011

Water level

Healy - Nenana 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.

30 days

Latest: 2,003.95 ftOct 1, 9:15 AM
Highest: 2,005.16 ftSep 16, 5:45 PM
Lowest: 2,003.95 ftSep 30, 2:15 PM
Range: 1.21 fthighest less lowest
Change: Fell 0.47 ftsince Sep 15, 8:45 PM
Readings: 1,462

The readings these charts were drawn from, as a table

Day	High ft	Low ft	Average ft	Last ft	Readings
Oct 1	2,004.00	2,003.95	2,003.98	2,003.95	38
Sep 30	2,004.04	2,003.95	2,003.99	2,003.98	96
Sep 29	2,004.11	2,004.04	2,004.08	2,004.04	96
Sep 28	2,004.19	2,004.11	2,004.16	2,004.12	96
Sep 27	2,004.27	2,004.19	2,004.23	2,004.19	96
Sep 26	2,004.37	2,004.26	2,004.32	2,004.28	96
Sep 25	2,004.50	2,004.37	2,004.43	2,004.37	96
Sep 24	2,004.71	2,004.51	2,004.60	2,004.51	96
Sep 23	2,004.99	2,004.72	2,004.84	2,004.72	68
Sep 22	2,005.07	2,004.96	2,005.03	2,004.99	95
Sep 21	2,004.96	2,004.73	2,004.85	2,004.96	96
Sep 20	2,004.85	2,004.72	2,004.78	2,004.74	96
Sep 19	2,004.86	2,004.78	2,004.82	2,004.85	96
Sep 18	2,005.03	2,004.79	2,004.88	2,004.79	96
Sep 17	2,005.16	2,005.04	2,005.12	2,005.04	96
Sep 16	2,005.16	2,004.47	2,004.94	2,005.11	96
Sep 15	2,004.47	2,004.41	2,004.44	2,004.47	13

How it reports

Rank: 541of 1,023 in Alaska, Oct 16
Schedule: every houron the hour's :15
Reports received, 24 hours: 20 of 2483.3% of its schedule
Reports received, 7 days: 164 of 16897.6% of its schedule, 165 reports in all
Longest silence, 7 days: 4 hoursfrom Oct 15, 3:15 PM
Latest report: Oct 15, 7:15 PMlocal time
Time to reach Storm Station: 31 min9 in 10 within 32 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 score95.6of 100

Alaska median: 96.0the median score of 1,023 stations
Scoring higher: 537stations in Alaska
Sharing its score: 11ranks 538 to 548
Points deducted: 4.44.2 arrival, 0.2 reports received
Counted at the median: Accuracy, instrument checks, forecast checknot measured at this station; Alaska median 100.0, 100.0, 100.0
Next above: AAKA2rank 540; ahead on reports received 100% against 99.4%
Next below: PMOA2rank 542; behind on reports received 99.4% against 97.0%

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.

Reports receivedweight 3599.434.8 of 35 pointsAlaska median 98.8167 of 168 scheduled reports received in 7 days
Arrivalweight 1057.75.8 of 10 pointsAlaska median 86.1half its reports arrived within 31 min
Continuityweight 10100.010.0 of 10 pointsAlaska median 100.0longest silence 2 h, on a schedule of one report every 60 min
Accuracyweight 20-20.0 of 20 points, at the medianAlaska median 100.0-
Instrument checksweight 15-15.0 of 15 points, at the medianAlaska median 100.0-
Forecast checkweight 10-10.0 of 10 points, at the medianAlaska median 100.0-

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 Healy - Nenana River

Gauges

Weather instruments

Places

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.