Cyril E King Airport to Washington Dulles International STT → IAD

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

• SIGMET E21E: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 25 knots, until 3:55 am AST (07:55 UTC). Over the route from 1049 to 1119 nm out.
  as issued

  WSUS31 KKCI 120555
  MKCE WST 120555
  CONVECTIVE SIGMET 21E
  VALID UNTIL 0755Z
  NC VA CSTL WTRS
  FROM 160SE SIE-190SE ECG-140ESE ILM-120E ORF-160SE SIE
  AREA TS MOV FROM 24025KT. TOPS TO FL350.
  REF INTL SIGMET LIMA SERIES.

• SIGMET E22E: thunderstorms (a convective SIGMET) up to 40,000 ft, moving from the southwest at 20 knots, until 3:55 am AST (07:55 UTC). Over the last 40 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: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1069 to 1129 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 120 nm of the route.
• AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 100 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 STT.

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

• E145 at 800 ft, 39 nm southwest, 2:07 am AST (06:07 UTC): a routine report with nothing remarked on. 1318 nm along the route, 39 nm southwest of the line.
  as filed, and in English

  RIC UA /OV RIC340001/TM 0607/FL008/TP E145

  Report

  a routine report filed through RIC

  Where

  1 nm north (340°) of RIC

  Time

  06:07 UTC

  Height

  at 800 ft

  Aircraft

  E145

At IAD when you get there the forecast at the estimated arrival, 12:14 pm EDT (16:14 UTC)

Wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet marginal VFR

The whole forecast for IAD

• From Mon 2:00 am EDT (06:00 UTC): wind from the north-northwest at 12 knots, visibility 5 miles, light rain, mist, overcast at 600 feet
• From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, overcast at 1,000 feet
• From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
• From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 11 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 3,500 feet
• From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, a broken layer at 3,500 feet
• From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 3 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for STT, the departure

• From Mon 2:00 am AST (06:00 UTC): wind from the east at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
• From Mon 9:00 am AST (13:00 UTC): wind from the east-southeast at 10 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,500 feet
• From Mon 7:00 pm AST (23:00 UTC): wind from the east at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet

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

• 6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 20 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
• 4/9383 WASHINGTON, DC., USA 2 nm from the route, at the destination end · security · ZDC
• 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

Daylight

Sunset at STT 5:59 pm AST (21:59 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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.