US-0640 Weather Forseth Field

Arena, WisconsinElevation 800 ftSmall airport

OFF-FIELD REFERENCE

Nearest report: KLNR · 11 NM NW · 57 min old

No ceiling, visibility 10 SM.

No on-field report, so no field flight category. Conditions at the field may differ.

OFF-FIELD REFERENCE · KLNR

WIND

030@8

steady

VISIBILITY

10 SM

16.1 km

CEILING

None

no BKN/OVC layer

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 40° at 4 kt, visibility 10 SM, temperature 12C. Treat this as supplemental, not an aviation observation. Forecast suggests monday mostly cloudy, high near 61F, low near 44F, 3% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Thursday: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Monday	Mostly Cloudy	61/44	NE 9 kt	–	3%
Tuesday	Partly Sunny	70/53	SE 9 kt	–	4%
Wednesday	Partly Sunny	72/55	S 9 kt	–	58%
Thursday	Showers And Thunderstorms Likely	71/48	W 4 kt	–	58%	Thunderstorms in the forecast
Friday	Chance Rain Showers	69/51	SE 4 kt	–	49%
Saturday	Chance Rain Showers	68/51	SE 4 kt	–	52%
Sunday	Chance Rain Showers	68	S 4 kt	–	31%

Source: National Weather Service (office MKX). Forecast issued 0752Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND

Crosswind calculator

No runway layout is available for US-0640. Enter a runway number or heading to estimate wind components.

RUNWAYS

Runway detail & declared distances

1 runway

10/28

Dimensions

2,500 x 75 ft

Surface

Turf

RWY 10

RWY 28

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

800 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

2301Z 6:01 PM

Sunrise

1226Z 7:26 AM

Loggable night

2331Z (6:31 PM local) → 1157Z (6:57 AM local)

end of evening to start of morning civil twilight

Position lights required

2301Z (6:01 PM local) → 1226Z (7:26 AM local)

sunset to sunrise (91.209)

Night passenger currency

0001Z (7:01 PM local) → 1126Z (6:26 AM local)

1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Forseth Field is in Arena, Wisconsin. Field elevation 800 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPrivately owned

UsePrivate use

TypeSmall airport

ManagerDAVE FORSETH

Manager phone608-753-2229

CHARTS & AIRSPACE

ICAO / IATAUS-0640

SectionalCHICAGO

Center (ARTCC)CHICAGO

Flight service (AFSS)GREEN BAY

RegionWisconsin

CountryUnited States

Coordinates43.0916, -89.9980

Distance from city6 NM SW

SERVICES & LIGHTING

Control towerNon-towered

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

US-0640 has no on-field report. Nearest reporting station: KLNR (11 NM NW, VFR).

KLNR Tri-County Regional Airport

11 NM NW

VFR

KMSN Dane County Regional Truax Field

29 NM E

VFR

KPDC Prairie Du Chien Municipal Airport

50 NM W

VFR

KJVL Southern Wisconsin Regional Airport

51 NM SE

VFR

KDBQ Dubuque Regional Airport

VFR

AIRPORT REMARKS

Operational remarks

›WE DO NOT OBJECT TO THE PROPOSAL HOWEVER, BE ADVISED IT DOES NOT MEET FAA AIRPORT DESIGN STANDARDS AS DESCRIBED IN FAA ADVISORY CIRCULAR 150/5300-13 TITLED "AIRPORT DESIGN". SOME OF THE STANDARDS NOT MET INCLUDE: ? - OBJECT FREE ZONE FOR SMALL AIRCRAFT WITH APPROACH SPEEDS OVER 50 KNOTS (BASED ON AERIAL IMAGERY [HANGAR, TREE ON WEST END]) ? - THRESHOLD SITING CRITERIA (BASED ON AERIAL IMAGERY [TREE ON WEST END, SOUTH OF RUNWAY]) NOTE: THIS IS NOT AN ALL-INCLUSIVE LIST. REFERENCE AC 150/5300-13 TITLED "AIRPORT DESIGN". BECAUSE THIS IS A PROPOSED PRIVATE-USE AIRPORT, ALL OPERATORS PROCEED AT THEIR OWN RISK. THE PROPONENT MUST MEET ALL STATE AND LOCAL REQUIREMENTS. TO ENHANCE THE SAFETY OF OPERATIONS, WE RECOMMEND: 1. ALL OPERATIONS ARE CONDUCTED IN VFR WEATHER CONDITIONS. 2. THE LANDING AREA IS LIMITED TO PRIVATE USE ONLY. 3. A NON-OBSTRUCTING WIND INDICATOR IS MAINTAINED ADJACENT TO THE TAKEOFF/LANDING AREA. 4. NO NIGHT OPERATIONS ARE CONDUCTED UNLESS THE RUNWAY AND WIND INDICATOR ARE LIT. 5. NO TERRAIN OR OBSTACLES PENETRATE THE 20:1 (1 FT RISE FOR EVERY 20 FT FROM THE RUNWAY END) VISUAL APPROACH/ DEPARTURE SURFACE AT LEAST 100 FT WIDE OR AS WIDE AS THE RUNWAY (WHICHEVER IS WIDER) AND EXTENDING INTO THE APPROACH AREA FROM THE LANDING THRESHOLD FOR EACH RUNWAY END. THE THRESHOLD MAY BE DISPLACED TO PROVIDE A CLEAR 20:1 SURFACE PROVIDED ENOUGH LANDING DISTANCE REMAINS FOR SAFE OPERATIONS IN THE AIRCRAFT TO BE USED. 6. UNAUTHORIZED PERSONS ARE RESTRICTED FROM ACCESS...

›FOR CD CTC CHICAGO ARTCC AT 630-906-8921.

OFFICIAL LINKS & SOURCES

↗Search NOTAMs (official FAA NOTAM Search)

↗US-0640 on OurAirports

FREQUENTLY ASKED

Does US-0640 have a METAR?

No on-field METAR is issued for US-0640. This page uses the nearest reporting station as a reference.

Does US-0640 have a TAF?

No TAF is issued directly for US-0640. Use the nearest TAF-issuing field as a planning reference.

What is the field elevation at US-0640?

US-0640 sits at 800 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for US-0640?

No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.

This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.