Baltimore/Washington International Thurgood Marshall to Boeing Fld/King County International BWI → BFI

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

• SIGMET C11C: thunderstorms (a convective SIGMET) up to 40,000 ft, moving from the west at 35 knots, until 2:55 am EDT (06:55 UTC). Over the route from 429 to 449 nm out.
  as issued

  WSUS32 KKCI 130455
  MKCC WST 130455
  CONVECTIVE SIGMET 11C
  VALID UNTIL 0655Z
  MI WI LH LS LM
  FROM 40ESE YQT-60NE ASP-30ENE ECK-30SSE GRR-40SE DLH-40ESE YQT
  AREA EMBD TS MOV FROM 25035KT. TOPS TO FL400.

• AIRMET SIERRA 6E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the route from 80 to 169 nm out.
• AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 120 to 179 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). Over the route from 439 to 638 nm out.
• AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 897 to 1266 nm out.
• AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 1724 to 1734 nm out.

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 BWI.

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

• E75L at 22,000 ft, 17 nm south, 10:45 pm EDT (02:45 UTC): light turbulence, remarks: zse. 1884 nm along the route, 17 nm south of the line.
  as filed, and in English

  EPH UA /OV EPH081019/TM 0245/FL220/TP E75L/TB CONS LGT/RM /ZSE

  Report

  a routine report filed through EPH

  Where

  19 nm east (081°) of EPH

  Time

  02:45 UTC

  Height

  at 22,000 ft

  Aircraft

  E75L

  Turbulence

  continuous light

  Remarks

  zse

At BFI when you get there the forecast at the estimated arrival, 6:02 pm PDT (01:02 UTC)

Wind from the south at 4 knots, visibility more than 6 miles, overcast at 10,000 feet VFR

BFI:

TAF KBFI 122320Z 1300/1324 31005KT P6SM SKC FM130300 00000KT P6SM SCT250 FM130800 14003KT P6SM SCT250 FM131000 15004KT P6SM OVC100 FM132000 18004KT P6SM OVC100

BWI:

TAF KBWI 130258Z 1303/1406 24003KT P6SM FEW250 FM131400 21007KT P6SM SCT250

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

• 4/9383 WASHINGTON, DC., USA 12 nm from the route, at the departure end · security · ZDC
• 6/8992 Monroe, MI, Thursday, October 15, 2026 Local 1 nm from the route, 349 nm along the route · a VIP movement · starts Thursday 15 October · ZOB
• 6/8927 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local 5 nm from the route, 1684 nm along the route · a VIP movement · starts tomorrow · ZSE
• 6/8923 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local 15 nm from the route, 1704 nm along the route · a VIP movement · starts tomorrow · ZLC

Notices to air missions closures and things out of service at both ends; airspace, navigation aids and obstructions near the line

BWI: 24 notices in force. runway 10/28 closed all of them, grouped →

• closed Taxiway G between taxiway R and Midfield Cargo Ramp closed until Sun 15 Nov, 4:00 pm EST (21:00 UTC) · BWI 10/011
  as issued

  !BWI 10/011 BWI TWY G BTN TWY R AND MIDFIELD CARGO RAMP CLSD 2610012104-2611152100

• closed Taxiway F between maintenance Ramp and Midfield Cargo Ramp closed until Sat 17 Oct, 5:00 pm EDT (21:00 UTC) · BWI 10/010
  as issued

  !BWI 10/010 BWI TWY F BTN MAINT RAMP AND MIDFIELD CARGO RAMP CLSD 2610012011-2610172100

• closed Taxiway V closed until Sat 17 Oct, 5:00 pm EDT (21:00 UTC) · BWI 10/009
  as issued

  !BWI 10/009 BWI TWY V CLSD 2610012010-2610172100

• closed Taxiway U1 closed until Sat 17 Oct, 5:00 pm EDT (21:00 UTC) · BWI 10/006
  as issued

  !BWI 10/006 BWI TWY U1 CLSD 2610012009-2610172100

BFI: 18 notices in force. all of them, grouped →

364 notices near the line, the first 30 (airspace and special activity within 25 nm, navigation aids within 25 nm, obstructions within 5 nm):

• Navigation aid ILS runway 19R localizer out of service until Wed 14 Oct, 7:59 pm EDT (23:59 UTC) · 0 nm along the route, 24 nm off the line · ADW 10/009
  as issued

  !ADW 10/009 ADW NAV ILS RWY 19R LOC U/S 2610071111-2610142359

• Obstruction tower lights (ASR 1272911) 39°16′N 76°34′W (0.2 nautical miles northeast 4MD) 217.2FT (198.2FT above ground level) out of service until Wed 18 Nov, 9:51 am EST (14:51 UTC) · 0 nm along the route, 8 nm off the line · 4MD 07/622
  as issued

  !DCA 07/622 4MD OBST TOWER LGT (ASR 1272911) 391626.40N0763405.70W (0.2NM NE 4MD) 217.2FT (198.2FT AGL) U/S 2607211452-2611181451

• Obstruction tower lights (ASR 1036155) 39°13′N 76°58′W (8.2 nautical miles east W50) 848.8FT (253.0FT above ground level) out of service until Sat 6 Feb, 7:05 am EST (12:05 UTC) · 10 nm along the route, 6 nm off the line · W50 10/220
  as issued

  !DCA 10/220 W50 OBST TOWER LGT (ASR 1036155) 391308.70N0765829.10W (8.2NM E W50) 848.8FT (253.0FT AGL) U/S 2610091205-2702061205

• Obstruction tower lights (ASR 1239090) 39°14′N 77°08′W (0.5 nautical miles northeast W50) 778.9FT (126.0FT above ground level) out of service until Tue 3 Nov, 2:47 pm EST (19:47 UTC) · 20 nm along the route, 7 nm off the line · W50 07/171
  as issued

  !DCA 07/171 W50 OBST TOWER LGT (ASR 1239090) 391458.00N0770841.70W (0.5NM NE W50) 778.9FT (126.0FT AGL) U/S 2607061947-2611031947

• Obstruction tower lights (ASR 1036150) 39°20′N 77°16′W (5.9 nautical miles southeast FDK) 981.0FT (371.1FT above ground level) out of service until Tue 20 Oct, 1:00 pm EDT (17:00 UTC) · 30 nm along the route, 5 nm off the line · FDK 09/013
  as issued

  !FDK 09/013 FDK OBST TOWER LGT (ASR 1036150) 392056.10N0771650.20W (5.9NM SE FDK) 981.0FT (371.1FT AGL) U/S 2609081228-2610201700

• Obstruction tower lights (ASR 1027620) 39°24′N 77°21′W (1.1 nautical miles ESE FDK) 520.0FT (82.0FT above ground level) out of service until Sat 31 Oct, 9:47 am EDT (13:47 UTC) · 30 nm along the route, 6 nm off the line · FDK 08/001
  as issued

  !FDK 08/001 FDK OBST TOWER LGT (ASR 1027620) 392445.00N0772105.00W (1.1NM ESE FDK) 520.0FT (82.0FT AGL) U/S 2608021347-2610311347

• Obstruction tower lights (ASR 1042820) 39°28′N 77°04′W (2.9 nautical miles WNW 2W2) 1111.9FT (298.9FT above ground level) out of service until Fri 16 Oct, 5:40 am EDT (09:40 UTC) · 30 nm along the route, 8 nm off the line · 2W2 07/518
  as issued

  !DCA 07/518 2W2 OBST TOWER LGT (ASR 1042820) 392847.60N0770439.80W (2.9NM WNW 2W2) 1111.9FT (298.9FT AGL) U/S 2607180940-2610160940

• Obstruction tower lights (ASR 1041741) 39°25′N 77°24′W (1.2 nautical miles WNW FDK) 462.3FT (179.1FT above ground level) out of service until Sat 5 Dec, 7:32 pm EST (00:32 UTC) · 40 nm along the route, 5 nm off the line · FDK 09/011
  as issued

  !FDK 09/011 FDK OBST TOWER LGT (ASR 1041741) 392517.50N0772404.20W (1.2NM WNW FDK) 462.3FT (179.1FT AGL) U/S 2609062332-2612060032

• Obstruction tower lights (ASR 1026697) 39°47′N 77°40′W (5.6 nautical miles NNE HGR) 1118.8FT (298.6FT above ground level) out of service until Sat 14 Nov, 8:13 pm EST (01:13 UTC) · 60 nm along the route, 10 nm off the line · HGR 10/001
  as issued

  !HGR 10/001 HGR OBST TOWER LGT (ASR 1026697) 394729.30N0774028.90W (5.6NM NNE HGR) 1118.8FT (298.6FT AGL) U/S 2610010114-2611150113

• Obstruction tower lights (ASR 1037322) 39°38′N 77°44′W (3.9 nautical miles SSW HGR) 834.0FT (213.9FT above ground level) out of service until Thu 29 Oct, 7:59 pm EDT (23:59 UTC) · 60 nm along the route, 3 nm off the line · HGR 08/035
  as issued

  !HGR 08/035 HGR OBST TOWER LGT (ASR 1037322) 393846.00N0774439.00W (3.9NM SSW HGR) 834.0FT (213.9FT AGL) U/S 2608291603-2610292359

• Obstruction tower lights (ASR 1329857) 39°42′N 77°40′W (2.6 nautical miles east HGR) 623 ft (157 ft above ground level) out of service until Tue 13 Oct, 2:02 am EDT (06:02 UTC) · 60 nm along the route, 4 nm off the line · HGR 08/033
  as issued

  !HGR 08/033 HGR OBST TOWER LGT (ASR 1329857) 394242.10N0774014.50W (2.6NM E HGR) 623FT (157FT AGL) U/S 2608290647-2610130602

• Obstruction tower lights (ASR 1207940) 39°42′N 78°10′W (1.3 nautical miles northwest W35) 849.1FT (149.0FT above ground level) out of service until Sat 5 Dec, 11:00 pm EST (04:00 UTC) · 80 nm along the route, 7 nm off the line · W35 09/082
  as issued

  !EKN 09/082 W35 OBST TOWER LGT (ASR 1207940) 394236.30N0781054.00W (1.3NM NW W35) 849.1FT (149.0FT AGL) U/S 2609071126-2612060400

• Obstruction tower lights (ASR 1204340) 40°01′N 78°34′W (4.4 nautical miles southwest HMZ) 1564.0FT (309.1FT above ground level) out of service until Sun 22 Nov, 11:00 pm EST (04:00 UTC) · 100 nm along the route, 3 nm off the line · HMZ 08/284
  as issued

  !AOO 08/284 HMZ OBST TOWER LGT (ASR 1204340) 400151.10N0783435.00W (4.4NM SW HMZ) 1564.0FT (309.1FT AGL) U/S 2608241133-2611230400

• Navigation aid ILS runway 21 outer marker out of service until Thu 9 Dec 2027, 4:11 pm EST (21:11 UTC), estimated · 100 nm along the route, 22 nm off the line · AOO 06/261
  as issued

  !AOO 06/261 AOO NAV ILS RWY 21 OM U/S 2606181513-2712092111EST

• Obstruction tower lights (ASR 1239440) 40°00′N 78°40′W (9 nautical miles southwest HMZ) 1,636 ft (313 ft above ground level) out of service until Thu 19 Nov, 3:49 pm EST (20:49 UTC), estimated · 110 nm along the route, 4 nm off the line · HMZ 10/048
  as issued

  !AOO 10/048 HMZ OBST TOWER LGT (ASR 1239440) 400045.00N0784058.70W (9NM SW HMZ) 1636FT (313FT AGL) U/S 2610051451-2611192049EST

• Obstruction tower lights (ASR 1204638) 39°57′N 78°50′W (9.6 nautical miles ESE 2G9) 2961.0FT (315.0FT above ground level) out of service until Mon 28 Dec, 11:00 pm EST (04:00 UTC) · 110 nm along the route, 7 nm off the line · 2G9 09/327
  as issued

  !AOO 09/327 2G9 OBST TOWER LGT (ASR 1204638) 395725.90N0785003.80W (9.6NM ESE 2G9) 2961.0FT (315.0FT AGL) U/S 2609301132-2612290400

• Obstruction tower lights (ASR 1239440) 40°00′N 78°40′W (9.0 nautical miles WSW HMZ) 1635.2FT (312.0FT above ground level) out of service until Thu 5 Nov, 4:27 pm EST (21:27 UTC) · 110 nm along the route, 4 nm off the line · HMZ 09/270
  as issued

  !AOO 09/270 HMZ OBST TOWER LGT (ASR 1239440) 400045.00N0784058.70W (9.0NM WSW HMZ) 1635.2FT (312.0FT AGL) U/S 2609212128-2611052127

• Navigation aid ILS runway 33 glide path out of service until Thu 15 Oct, 4:00 pm EDT (20:00 UTC), estimated · 120 nm along the route, 12 nm off the line · JST 10/017
  as issued

  !JST 10/017 JST NAV ILS RWY 33 GP U/S 2610082154-2610152000EST

• Obstruction tower lights (ASR 1287440) 40°10′N 78°49′W (8.6 nautical miles south JST) 2554.8FT (258.9FT above ground level) out of service until Thu 4 Feb, 1:15 pm EST (18:15 UTC) · 120 nm along the route, 6 nm off the line · JST 10/014
  as issued

  !JST 10/014 JST OBST TOWER LGT (ASR 1287440) 401024.40N0784912.30W (8.6NM S JST) 2554.8FT (258.9FT AGL) U/S 2610071815-2702041815

• Obstruction tower lights (ASR 1203440) 40°00′N 79°03′W (2.6 nautical miles WSW 2G9) 2499.0FT (307.1FT above ground level) out of service until Mon 30 Nov, 6:59 pm EST (23:59 UTC) · 120 nm along the route, 9 nm off the line · 2G9 09/011
  as issued

  !AOO 09/011 2G9 OBST TOWER LGT (ASR 1203440) 400055.10N0790343.60W (2.6NM WSW 2G9) 2499.0FT (307.1FT AGL) U/S 2609011610-2611302359

• Obstruction tower lights (ASR 1026249) 40°07′N 79°00′W (5.6 nautical miles northeast 2G9) 2500.0FT (290.0FT above ground level) out of service until Wed 25 Nov, 1:47 pm EST (18:47 UTC) · 120 nm along the route, 3 nm off the line · 2G9 08/321
  as issued

  !AOO 08/321 2G9 OBST TOWER LGT (ASR 1026249) 400752.10N0790025.40W (5.6NM NE 2G9) 2500.0FT (290.0FT AGL) U/S 2608271747-2611251847

• Obstruction tower lights (ASR 1038031) 39°58′N 78°55′W (5.5 nautical miles southeast 2G9) 2606.0FT (316.9FT above ground level) out of service until Sun 1 Nov, 10:45 pm EST (03:45 UTC) · 120 nm along the route, 10 nm off the line · 2G9 08/042
  as issued

  !AOO 08/042 2G9 OBST TOWER LGT (ASR 1038031) 395828.40N0785540.10W (5.5NM SE 2G9) 2606.0FT (316.9FT AGL) U/S 2608040245-2611020345

• Obstruction tower lights (ASR 1287440) 40°10′N 78°49′W (8.6 nautical miles south JST) 2554.8FT (258.9FT above ground level) out of service until Fri 20 Nov, 10:14 am EST (15:14 UTC) · 120 nm along the route, 6 nm off the line · JST 07/078
  as issued

  !JST 07/078 JST OBST TOWER LGT (ASR 1287440) 401024.40N0784912.30W (8.6NM S JST) 2554.8FT (258.9FT AGL) U/S 2607231514-2611201514

• Obstruction tower lights (ASR 1223757) 40°10′N 78°58′W (8.8 nautical miles northeast 2G9) 2279.2FT (256.9FT above ground level) out of service until Thu 19 Nov, 3:33 pm EST (20:33 UTC) · 120 nm along the route, 3 nm off the line · 2G9 07/230
  as issued

  !AOO 07/230 2G9 OBST TOWER LGT (ASR 1223757) 401053.80N0785857.70W (8.8NM NE 2G9) 2279.2FT (256.9FT AGL) U/S 2607222033-2611192033

• Obstruction tower lights (ASR 1029616) 40°01′N 79°05′W (3.7 nautical miles WSW 2G9) 2649.0FT (419.0FT above ground level) out of service until Tue 13 Oct, 7:59 pm EDT (23:59 UTC) · 120 nm along the route, 10 nm off the line · 2G9 07/151
  as issued

  !AOO 07/151 2G9 OBST TOWER LGT (ASR 1029616) 400132.00N0790543.00W (3.7NM WSW 2G9) 2649.0FT (419.0FT AGL) U/S 2607132045-2610132359

• Navigation aid DME out of service until Fri 6 Dec 2030, 3:00 pm EST (20:00 UTC), estimated · 130 nm along the route, 18 nm off the line · IHD 08/049
  as issued

  !AOO 08/049 IHD NAV DME U/S 2608042220-3012062000EST

• Obstruction tower lights (ASR 1027525) 40°09′N 79°25′W (6.0 nautical miles ENE P45) 2447.8FT (500.0FT above ground level) out of service until Tue 3 Nov, 8:45 pm EST (01:45 UTC) · 140 nm along the route, 10 nm off the line · P45 08/060
  as issued

  !AOO 08/060 P45 OBST TOWER LGT (ASR 1027525) 400919.80N0792542.30W (6.0NM ENE P45) 2447.8FT (500.0FT AGL) U/S 2608060045-2611040145

• Navigation aid ILS runway 24 outer marker out of service until Fri 8 Jan, 3:00 pm EST (20:00 UTC), estimated · 140 nm along the route, 4 nm off the line · LBE 05/008
  as issued

  !LBE 05/008 LBE NAV ILS RWY 24 OM U/S 2605271152-2701082000EST

• Navigation aid ILS runway 05 localizer out of service until further notice · 140 nm along the route, 25 nm off the line · VVS 10/256
  as issued

  !AOO 10/256 VVS NAV ILS RWY 05 LOC U/S 2510301820-PERM

• Obstruction tower lights (ASR 1216718) 40°28′N 79°28′W (9.0 nautical miles northeast 5G8) 1515.1FT (305.1FT above ground level) out of service until Wed 23 Dec, 12:57 am EST (05:57 UTC) · 150 nm along the route, 7 nm off the line · 5G8 09/289
  as issued

  !AOO 09/289 5G8 OBST TOWER LGT (ASR 1216718) 402852.20N0792809.90W (9.0NM NE 5G8) 1515.1FT (305.1FT AGL) U/S 2609240457-2612230557

From the FAA's notice service (NOTAMs), the site's copy refreshed every few minutes; last checked a minute ago. The FAA has so far issued eFlight its test feed, which misses some notices (checked against the FAA's own search on 12 October: about a third missing at Santa Barbara and Burbank, none at Atlanta or Las Vegas); the request for the full feed is with the FAA. Times are local to the field. This is for planning; the legal briefing comes from Flight Service or the FAA's own tools.

Daylight

Sunset at BWI 6:31 pm EDT (22:31 UTC), at BFI 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times.