March Arb Airport to Baltimore/Washington International Thurgood Marshall RIV → BWI

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

• SIGMET C10C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 12:55 am PDT (07:55 UTC). Over the route from 569 to 659 nm out.
  as issued

  WSUS32 KKCI 120555
  MKCC WST 120555
  CONVECTIVE SIGMET 10C
  VALID UNTIL 0755Z
  CO NM
  FROM 20NNE PUB-40WSW LAA-30WSW CIM-50WSW ALS-50ESE HBU-20NNE PUB
  AREA TS MOV FROM 22040KT. TOPS TO FL340.

• SIGMET E22E: thunderstorms (a convective SIGMET) up to 40,000 ft, moving from the southwest at 20 knots, until 12:55 am PDT (07:55 UTC). Over the last 80 nm of the route.
  as issued

  WSUS31 KKCI 120555
  MKCE WST 120555
  CONVECTIVE SIGMET 22E
  VALID UNTIL 0755Z
  NY NJ PA DE MD VA DC WV AND MA RI DE NJ NY CSTL WTRS
  FROM 40E HTO-80SSW ACK-100ESE SIE-30SW CSN-40SSE JST-40E HTO
  AREA EMBD TS MOV FROM 24020KT. TOPS TO FL400.

• AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the first 100 nm of the route.
• AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 40 to 689 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 170 to 369 nm out.
• AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 210 to 719 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 250 to 300 nm out.
• AIRMET TANGO 1W: 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, 639 nm along the route.
• AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 709 to 1228 nm out.
• AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 499 nm of the route.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1748 to 1907 nm out.
• AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 110 nm of 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 RIV.

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

Not fetched just now.

At BWI when you get there the forecast at the estimated arrival, 1:45 pm EDT (17:45 UTC)

BWI has no terminal forecast; use the nearest airport that does.

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

• 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 15 nm from the route, 150 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
• 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 13 nm from the route, 1248 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
• 6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 10 nm from the route, 1598 nm along the route · a VIP movement · until 12 October · ZID
• 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC
• 4/9383 WASHINGTON, DC., USA 5 nm from the route, at the destination end · security · ZDC
• 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 6 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at RIV 6:18 pm PDT (01:18 UTC), at BWI 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 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.