Storm Station
Kupreanof, Alaska
48°
Rain· Feels like 45°·Light breeze 7 mph ESE
Rain. Cloudy, with a low around 43. Southeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
-UV
-Air quality
97%Humidity
95%Cloud

What is measuring near here

The 4 instruments nearest Kupreanof, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.0 miles away.

measured now2 instruments

PetersburgPAPG

At an airfield/2.0 mi away/87 ft/51 ft below here

temp, wind, gust, visibility, precip, pressure

Rank1of 846

Blaquiere PointBQPA2

Beside a road/22.9 mi away/66 ft/72 ft below here

temp, pavement temp, wind, visibility, precip

Rank476of 846

measured daily2 instruments

Petersburg AirportPSG

At an airfield/2.2 mi away/98 ft/40 ft below here

snowfall, snow depth, precip, high, low

Rank-

Wrangell 8.7 NNWAK-WP-6

In a volunteer observer's own ground/32.7 mi away/33 ft/105 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Petersburg, drawn

The nearest airport reporting now, 2.0 mi from Kupreanof. From its report of Sep 27, 2026, 12:56 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,900 ft; the ceiling is 1,900 ft; visibility 10 mi or more.

Section of the sky over Petersburg, height above the station to scale: overcast cloud with its base at 1,900 feet, the ceiling at 1,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PAPGFIG. A THE SKY OVER PETERSBURGSECTION, 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 SHEETOVC 1,900 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPetersburg, the skySTATION REPORT · ASOS PAPGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-PAPG-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

48.0 F with a dew point of 46.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 1,900 ft.

Chart of the air at Petersburg: temperature 48.0 degrees Fahrenheit and dew point 46.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 1,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PAPGFIG. B THE AIR AT PETERSBURGTHE 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 500 FT ABOVE THE STATION, AT 45.5 FLOWEST CLOUD REPORTED, OVC 1,900 FTTEMPERATURE AND DEW POINT 48.0 F, 46.0 FRELATIVE HUMIDITY 93 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 POINTTITLEPetersburg, the airSTATION REPORT · ASOS PAPGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-PAPG-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Petersburg, north up: blowing from 320 degrees, the 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 PAPGFIG. C THE WIND AT PETERSBURGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPetersburg, the windSTATION REPORT · ASOS PAPGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-PAPG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Alaska

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

Near Kupreanof

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