Storm Station
Harmon, North Dakota
47° 69°/44°
Clear· Feels like 46°·Light air 4 mph WNW
Partly cloudy, with a low around 46. Northwest wind around 6 mph.
0UV Low
22Air quality
70%Humidity
0%Cloud
Now
2:30 AM
47feels46
now, clear
Today
Sep 27
6944
overcast
Mon
Sep 28
6352
86%
15mph
rain heavy
Tue
Sep 29
7756
53%
overcast
Wed
Sep 30
7454
18mph
overcast
Thu
Oct 1
6248
14mph
clear day
Fri
Oct 2
6844
19mph
overcast
Sat
Oct 3
7255
10%
20mph
drizzle light
47°
69°44°
63°52°
77°56°
74°54°
62°48°
68°44°
72°55°

As of 2:30 AM in Harmon, North Dakota.

What is measuring near here

The 6 instruments nearest Harmon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.0 miles away.

measured now4 instruments

Mandan #1S2020

At a soil climate station/12.9 mi away/1,930 ft/189 ft above here

temp, humidity, soil temp, soil moisture

Rank-

MandamY19

At an airfield/13.1 mi away/1,942 ft/201 ft above here

temp, wind, gust, visibility, precip, pressure

Rank152of 198

Washburn ESS US-83ND026

Beside a road/24.6 mi away/1,869 ft/128 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

Moffit 3 SE [CCOOP]MFTN8

At a river or reservoir gauge/39.6 mi away/1,798 ft/57 ft above here

temp, wind, gust, humidity, pressure

Rank144of 198

measured daily2 instruments

Mandan 8.7 NWND-MT-21

In a volunteer observer's own ground/3.0 mi away/1,825 ft/84 ft above here

precip, snowfall, snow depth

Rank-

Experiment StationMESN8

On a farm or research station/9.9 mi away/1,706 ft/35 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Mandam, drawn

The nearest airport reporting now, 13.1 mi from Harmon. From its report of Sep 27, 2026, 2:35 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Mandam, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT Y19FIG. A THE SKY OVER MANDAMSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMandam, the skySTATION REPORT · ASOS Y19TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-Y19-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

51.8 F with a dew point of 46.4 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up.

Chart of the air at Mandam: temperature 51.8 degrees Fahrenheit and dew point 46.4, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT Y19FIG. B THE AIR AT MANDAMTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,200 FT ABOVE THE STATION, AT 45.1 FTEMPERATURE 51.8 FDEW POINT 46.4 FSPREAD 5.4 FRELATIVE HUMIDITY 82 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEMandam, the airSTATION REPORT · ASOS Y19TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-Y19-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Mandam, north up: blowing from 290 degrees, the west northwest, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT Y19FIG. C THE WIND AT MANDAMPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMandam, the windSTATION REPORT · ASOS Y19TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-Y19-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Mandam, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in North Dakota

21 places, each with its own forecast and its own instruments.

Near Harmon

The nearest places, each with its own forecast and the instruments nearest it.