WxDecoder

1TT1 Weather Washington County Air 1 Base Heliport

Brenham, TexasElevation 280 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KCLL · 19 NM NW · 15 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 · KCLL
WIND
080@3
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 visibility 10 SM. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 60F, 1% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tuesday: Slight Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 60 SE 4 kt – 1%
Tuesday Slight Chance Showers And Thunderstorms 81/63 E 4 kt – 23% Thunderstorms in the forecast
Wednesday Partly Sunny then Chance Showers And Thunderstorms 83/63 SE 9 kt – 32%
Thursday Partly Sunny 82/64 E 9 kt – 1%
Friday Mostly Cloudy then Chance Showers And Thunderstorms 78/63 E 9 kt – 25%
Saturday Partly Sunny then Slight Chance Showers And Thunderstorms 82/65 SE 4 kt – 20%
Sunday Mostly Sunny 84/67 SE 4 kt – 4%
Monday Mostly Sunny 86 S 9 kt – 12%

Source: National Weather Service (office HGX). Forecast issued 0207Z.

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 1TT1. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 30 ft

H1
Dimensions
30 x 30 ft
Surface
Concrete (good)
Edge lights
FLD
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
280 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2342Z 6:42 PM
Sunrise
1235Z 7:35 AM
Loggable night
0007Z (7:07 PM local) → 1210Z (7:10 AM local)
end of evening to start of morning civil twilight
Position lights required
2342Z (6:42 PM local) → 1235Z (7:35 AM local)
sunset to sunrise (91.209)
Night passenger currency
0042Z (7:42 PM local) → 1135Z (6:35 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

Washington County Air 1 Base Heliport is in Brenham, Texas. Field elevation 280 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerKEVIN DERAMUS
Manager phone979-277-6267
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA1TT1
SectionalHOUSTON
Center (ARTCC)HOUSTON
Flight service (AFSS)MONTGOMERY COUNTY
RegionTexas
CountryUnited States
Coordinates30.3054, -96.2052
Distance from city13 NM NE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

1TT1 traffic patterns

2026-07-21 to 2026-10-22, 11 days observed · data 2026-10-25

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.6
AVG OPS/DAY
1.3
Activity trend over 8 days: flat, from 1 to 1 operations per dayOperations trend (8 days)

Busiest day: Tue · Busiest month: Jul

FLEET MIX
Helicopter 100%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC45 (Helicopter) · ~3 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›EC45 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

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

1TT1 has no on-field report. Nearest reporting station: KCLL (19 NM NW, VFR).

KCLL Easterwood Field
19 NM NW
VFR
KCFD Coulter Field
25 NM N
VFR
KDWH David Wayne Hooks Memorial Airport
37 NM SE
VFR
KCXO Conroe-North Houston Regional Airport
41 NM E
VFR
KUTS Huntsville Regional Airport
42 NM NE
VFR
KELA Eagle Lake Airport
43 NM S
VFR
AIRPORT REMARKS

Operational remarks

›REF: ASN 2022-ASW-8477-NRA
›PRIM INGRESS/EGRESS 175 DEGS; SRY INGRESS/EGRESS 354 DEGS.
›KDERAMUS@WASHINGTONCOUNTYTX.GOV
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗1TT1 on OurAirports
FREQUENTLY ASKED
Does 1TT1 have a METAR?
No on-field METAR is issued for 1TT1. This page uses the nearest reporting station as a reference.
Does 1TT1 have a TAF?
No TAF is issued directly for 1TT1. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 1TT1?
1TT1 sits at 280 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 1TT1?
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.