Storm Station
Riverdale, Michigan
46°
Mostly clear· Feels like 45°·Light air 4 mph NNW
Sunny, with a high near 73. North northeast wind around 7 mph.
-UV
-Air quality
100%Humidity
14%Cloud

What is measuring near here

The 5 instruments nearest Riverdale, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now3 instruments

Alma [CCOOP]ALMM4

At a river or reservoir gauge/8.5 mi away/768 ft/24 ft below here

temp, wind, gust, humidity, pressure

Rank2of 407

AlmaAMN

At an airfield/8.6 mi away/754 ft/38 ft below here

temp, wind, gust, visibility, precip, pressure

Rank293of 407

M46Mm0711MC145

Beside a road/12.6 mi away/945 ft/153 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Vestaburg 1.7 SMI-MT-13

In a volunteer observer's own ground/3.6 mi away/909 ft/117 ft above here

precip, snowfall, snow depth

Rank-

Mount PleasantMTPM4

At a cooperative observer's station/14.2 mi away/794 ft/2 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Alma, drawn

The nearest airport reporting now, 8.6 mi from Riverdale. From its report of Sep 27, 2026, 9:15 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 Alma, 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 AMNFIG. A THE SKY OVER ALMASECTION, 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 MORE0510TITLEAlma, the skySTATION REPORT · ASOS AMNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-AMN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

51.8 F with a dew point of 48.2 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up.

Chart of the air at Alma: temperature 51.8 degrees Fahrenheit and dew point 48.2, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AMNFIG. B THE AIR AT ALMATHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATES 800 FT ABOVE THE STATION, AT 47.3 FTEMPERATURE 51.8 FDEW POINT 48.2 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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 POINTTITLEAlma, the airSTATION REPORT · ASOS AMNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-AMN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Alma, north up: blowing from 350 degrees, the north, 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 AMNFIG. C THE WIND AT ALMAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAlma, the windSTATION REPORT · ASOS AMNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-AMN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mount Pleasant (MTPM4), 14.2 miles from here, read 21 Sep, 07:00. measured daily

Elsewhere in Michigan

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

Near Riverdale

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