Storm Station
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On a farm or research station

DCP network, identified by the register

Identifier
USBR-HVMT
Latitude
46.67561 N
Longitude
111.98915 W
Elevation
-
Rank
789of 1,053 in Montana, Oct 16
Observed
12:00 AMMDT, 1 hour ago
Air temperature
24.1F
Dew point
23.6F
Relative humidity
98%
Wind
0mph
Gust
2mph

Ranking Statistics

On the radar over Helena Valley, MT (HVMT)ReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

On a farm or research station

Drawn as the kind of place it stands at. 20 instruments in Montana stand at one.

Station charts

Helena Valley, MT (HVMT) Report

Rank 789 of 1,053 in Montana, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Ranking Statistics

247 score83.6of 100

Montana median
91.1the median score of 1,053 stations
Scoring higher
787stations in Montana
Sharing its score
3ranks 788 to 790
Points deducted
16.49.3 accuracy, 4.6 arrival, 2.1 forecast check, 0.4 reports received
Counted at the median
Forecast checknot measured at this station; Montana median 78.7
Next above
GPRM8rank 788; ahead on reports received 99.4% against 98.8%
Next below
LCPM8rank 790; behind on reports received 98.8% against 85.7%

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 3598.834.6 of 35 pointsMontana median 98.8166 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1054.45.4 of 10 pointsMontana median 80.4half its reports arrived within 33 min
  3. Continuityweight 10100.010.0 of 10 pointsMontana median 100.0longest silence 2 h, on a schedule of one report every 60 min
  4. Accuracyweight 2053.510.7 of 20 pointsMontana median 86.7its temperature against the airport station KHLN, 4.9 miles away, over 165 readings: typical difference 5.0 °F beyond a steady offset of -3.3 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsMontana median 100.00 of 165 readings failed their check against its reference station
  6. Forecast checkweight 10-7.9 of 10 points, at the medianMontana median 78.7-

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 2.0 °F of its reference, typically, none beyond 8.5 °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
Rank
789of 1,053 in Montana, Oct 16
Schedule
every houron the hour's :00
Reports received, 24 hours
23 of 2495.8% of its schedule
Reports received, 7 days
166 of 16898.8% of its schedule
Days reported, 30 days
-
Longest silence, 7 days
2 hoursfrom Oct 12, 3:00 AM
Latest report
Oct 16, 6:00 AMlocal time
Time to reach Storm Station
33 min9 in 10 within 33 min
Against its reference, 30 days
-3.5 °Fcooler than the airport station KHLN, 4.9 miles away, on average over 174 readings; typical difference 6.1 °F

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

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

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

Chart of the 1,053 ranked stations in Montana on Oct 16 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 0; 10 to 19 per cent, 0; 20 to 29 per cent, 11; 30 to 39 per cent, 0; 40 to 49 per cent, 29; 50 to 59 per cent, 43; 60 to 69 per cent, 25; 70 to 79 per cent, 133; 80 to 89 per cent, 69; 90 to 99 per cent, 405; 100 per cent, 338. Helena Valley, MT (HVMT) received 98.8 per cent, 166 of 168 scheduled reports, rank 789 of 1,053.WHERE IT RANKS IN MONTANA, Oct 16THIS ONE: 98.8%, 166 OF 168, RANK 789 OF 1,053PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 910 to 1920 to 291130 to 3940 to 492950 to 594360 to 692570 to 7913380 to 896990 to 99405100338STATIONS, LOG SCALE
Chart of Helena Valley, MT (HVMT)'s rank in Montana by how it reported, day by day, from 2026-10-09 to 2026-10-16: 2026-10-09 rank 1,047 of 1,048; 2026-10-10 rank 1,047 of 1,049; 2026-10-11 rank 1,040 of 1,054; 2026-10-12 rank 1,031 of 1,057; 2026-10-13 rank 1,021 of 1,059; 2026-10-14 rank 997 of 1,057; 2026-10-15 rank 838 of 1,056; 2026-10-16 rank 789 of 1,053.ITS RANK IN MONTANA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 9Oct 11Oct 13Oct 15Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%338
90 to 99%405
80 to 89%69
70 to 79%133
60 to 69%25
50 to 59%43
40 to 49%29
30 to 39%0
20 to 29%11
10 to 19%0
0 to 9%0
DayRankStations rankedShare received
Oct 16, 20267891,05398.8%
Oct 15, 20268381,05685.7%
Oct 14, 20269971,05771.4%
Oct 13, 20261,0211,05957.1%
Oct 12, 20261,0311,05743.4%
Oct 11, 20261,0401,05429.1%
Oct 10, 20261,0471,04914.8%
Oct 9, 20261,0471,04814.2%

Station report

Helena Valley, MT (HVMT), in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 16 the noon sun stands 34 degrees above the horizon at 46.68 N, and the day is 10 h 42 min long. Level ground there takes 56 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Helena Valley, MT (HVMT), angles true: on Oct 16 it stands 34 degrees above the horizon, against 67 at the June solstice, 43 at the equinoxes and 20 at the December solstice; the day is 10 h 42 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT USBR-HVMTFIG. E THE SUN AT HELENA VALLEY, MT (HVMT)ELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 67°EQUINOXES 43°DECEMBER SOLSTICE 20°OCT 16, 34°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 42 MINLEVEL GROUND TAKES 56 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 46.68 N; THE SUN'S DECLINATION -9.1°TITLEHelena Valley, MT (HVMT), the sunSTATION REPORT · DCP USBR-HVMTTYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-USBRHVMT-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A data collection platform. Its sensors, as its network builds them.

Elevation of a data collection platform, Helena Valley, MT (HVMT), each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT USBR-HVMTFIG. F THE INSTRUMENTELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READANTENNA, SENDING BY SATELLITE-AIR TEMPERATURE-PRECIPITATION GAUGE-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEHelena Valley, MT (HVMT), the instrumentSTATION REPORT · DCP USBR-HVMTTYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-USBRHVMT-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001

What it seesMoon and tides FB-CLK-003Hurricane FB-EVT-043Nor'easter FB-EVT-066Flash flood FB-EVT-100Coastal flood FB-EVT-105

What this instrument measures for

1 place reads it as one of the nearest to it.

Near Helena Valley, MT (HVMT)

Gauges

Weather instruments

Places