WxDecoder
18NH

Catholic Medical Center Heliport

Manchester, New HampshireElevation 252 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KMHT · 4 NM SE · More than 1 hour old
Ceiling 12,000 ft, visibility 10 SM, rain.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMHT
WIND
190@8
steady
VISIBILITY
10 SM
16.1 km
CEILING
12,000 ft
lowest BKN/OVC
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 180° at 11 kt, visibility 10 SM, temperature 21C. Treat this as supplemental, not an aviation observation. Forecast suggests thursday chance rain showers then mostly sunny, high near 83F, low near 55F, 72% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Thursday: winds up to 30 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Thursday Chance Rain Showers then Mostly Sunny 83/55 SW 17 kt 30 kt 72% Strong winds in the forecast
Friday Sunny 75/51 NW 9 kt – 0%
Saturday Sunny 77/58 SW 4 kt – 20%
Sunday Chance Rain Showers 78/61 SW 9 kt – 42%
Monday Mostly Sunny 79/55 NW 9 kt – 5%
Tuesday Mostly Sunny 80/63 S 9 kt – 18%
Wednesday Slight Chance Rain Showers then Partly Sunny 81 NW 9 kt – 16%

Source: National Weather Service (office GYX). Forecast issued 0455Z.

AIR QUALITY

Air quality index

31 Good
Primary pollutant: Ozone
Ozone 31 · PM2.5 31 · PM10 9

Interior Rockingham County, NH · observed 2026-09-09 23:00 EST · Source: AirNow (US EPA). Air-quality data for situational awareness, not an official health advisory.

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 18NH. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway

H1
Dimensions
44 x 44 ft
Surface
Asphalt (good)
Edge lights
PERI
RWY H1

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

FIELD CONDITIONS

Field elevation

Field elevation
252 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2307Z 7:07 PM
Sunrise
1019Z 6:19 AM
Loggable night
2335Z (7:35 PM local) → 0951Z (5:51 AM local)
end of evening to start of morning civil twilight
Position lights required
2307Z (7:07 PM local) → 1019Z (6:19 AM local)
sunset to sunrise (91.209)
Night passenger currency
0007Z (8:07 PM local) → 0919Z (5:19 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

Catholic Medical Center Heliport is in Manchester, New Hampshire. Field elevation 252 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerCATHOLIC MEDICAL CENTER
Manager phone603-668-3545
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA18NH
SectionalNEW YORK
Center (ARTCC)BOSTON
Flight service (AFSS)BANGOR
RegionNew Hampshire
CountryUnited States
Coordinates42.9916, -71.4742
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSee remarks
BeaconWhite-green-yellow (heliport)
AIRCRAFT ACTIVITY

18NH traffic patterns

2026-07-03 to 2026-08-05, 4 days observed · data 2026-09-08

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.7
AVG OPS/DAY
1
Activity trend over 3 days: flat, from 1 to 1 operations per dayOperations trend (3 days)

Busiest day: Sat · Busiest month: Aug

FLEET MIX
Helicopter 100%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC45 (Helicopter) · ~3 landings/mo
›EC35 (Helicopter) · ~0 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

18NH has no on-field report. Nearest reporting station: KMHT (4 NM SE, VFR).

KMHT Manchester-Boston Regional Airport
4 NM SE
VFR
KASH Nashua Airport / Boire Field
13 NM S
VFR
KCON Concord Municipal Airport
13 NM N
VFR
KLWM Lawrence Municipal Airport
23 NM SE
VFR
KAFN Jaffrey Airfield Silver Ranch Airport
26 NM SW
VFR
KPSM Portsmouth International Airport at Pease
29 NM E
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC BOSTON APCH AT 603-594-5551.
›PRVDD VFR OPS & PVT USE ONLY; INGRESS/EGRESS APRXLY 190-210 DEG MAG HDG & 010-030 DEG MAG HDG; NO EGRESS TO THE W OF PAD.
›FOR PERI LGTS CALL 603-668-3545.
›30 FT BLDG 141 FT W OF PAD.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗18NH on OurAirports
FREQUENTLY ASKED
Does 18NH have a METAR?
No on-field METAR is issued for 18NH. This page uses the nearest reporting station as a reference.
Does 18NH have a TAF?
No TAF is issued directly for 18NH. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 18NH?
18NH sits at 252 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 18NH?
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.