MC Clellan Airfield to Robert Gray Army Airfield MCC → GRK

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

• SIGMET W24W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the south at 35 knots, until 6:55 am PDT (13:55 UTC). Near the route, 338 nm along the route.
  as issued

  WSUS33 KKCI 121155
  MKCW WST 121155
  CONVECTIVE SIGMET 24W
  VALID UNTIL 1355Z
  UT NV
  FROM 40ESE ELY-50NW BCE-60S ILC-50SW ILC-40ESE ELY
  AREA TS MOV FROM 20035KT. TOPS TO FL300.

• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 139 nm of the route.
• AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 90 nm out.
• AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 209 to 507 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 269 to 378 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 338 to 527 nm out.
• AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 408 to 467 nm out.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 438 to 776 nm out.
• AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 1054 nm along the route.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from MCC.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

• E170 at 20,000 ft, 21 nm south, 4:49 am PDT (11:49 UTC): light chop turbulence, remarks: ZFW82. 955 nm along the route, 21 nm south of the line.
  as filed, and in English

  HOB UA /OV HOB030020/TM 1149/FL200/TP E170/TB CONS LGT CHOP/RM ZFW82

  Report

  a routine report filed through HOB

  Where

  20 nm northeast (030°) of HOB

  Time

  11:49 UTC

  Height

  at 20,000 ft

  Aircraft

  E170

  Turbulence

  continuous light chop

  Remarks

  ZFW82

• B737 at 38,000 ft, 31 nm southwest, 4:05 am PDT (11:05 UTC): light chop turbulence, wind 306° at 27 knots. 1183 nm along the route, 31 nm southwest of the line.
  as filed, and in English

  BWD UA /OV SJT094066/TM 1105/FL380/TP B737/WV 306027KT/TB LGT CHOP CONS/RM AWC-WEB

  Report

  a routine report filed through BWD

  Where

  66 nm east (094°) of SJT

  Time

  11:05 UTC

  Height

  at 38,000 ft

  Aircraft

  B737

  Wind

  from 306° at 27 knots

  Turbulence

  light chop continuous

  Remarks

At GRK when you get there the forecast at the estimated arrival, 3:14 pm CDT (20:14 UTC)

Wind from the south-southeast at 9 knots, a broken layer at 1,500 feet marginal VFR

The whole forecast for GRK

• From Mon 3:00 am CDT (08:00 UTC): wind from the south-southeast at 9 knots, a broken layer at 1,500 feet
• Changing between Mon 11:00 am CDT (16:00 UTC) and 12:00 pm CDT (17:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 5,000 feet
• Changing between Mon 5:00 pm CDT (22:00 UTC) and 6:00 pm CDT (23:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 10,000 feet
• Changing between Mon 10:00 pm CDT (03:00 UTC) and 11:00 pm CDT (04:00 UTC) to: wind from the south-southeast at 9 knots, a broken layer at 1,000 feet

The forecast for MCC, the departure

• From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
• From Mon 6:00 am PDT (13:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
• From Mon 5:00 pm PDT (00:00 UTC): wind from the north-northwest at 6 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

• 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 18 nm from the route, at the departure end · security · until 1 November · ZOA
• 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 7 nm from the route, 806 nm along the route · security · starts tomorrow · ZAB

Daylight

Sunset at MCC 6:30 pm PDT (01:30 UTC), at GRK 7:02 pm CDT (00:02 UTC) (civil twilight ends 7:26 pm CDT (00:26 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.