LAUNCH CODE AVIATION FORECAST

US NAVAL ACADEMY KNAK

Aviation Weather Report for Us Naval Academy, Md

Current Conditions at
Annapolis/Naval Academy (KNAK)

64°F

Cloudy

Observed Oct 15, 08:54 PM EDT
64 minutes ago

Rel. humidity: 77%
Dew point: 57°F
Visibility: 10 mi
Pressure: 30.14 inHg
Flight rule: VFR

Sun AlmanacOct 15 · EDT

Naut. dawn: 6:17 AM
Civil dawn: 6:48 AM
Sunrise: 7:15 AM
Sunset: 6:29 PM
Civil dusk: 6:56 PM
Naut. dusk: 7:27 PM

Approximate - station coordinates

Wind Data
15 mph
120° from

Cloud level(s): Scattered at 2500 ft AGL; Scattered at 3400 ft AGL; Overcast at 5000 ft AGL

0.00 nautical miles from forecast point · MD, US · Elevation 6.6 ft · Times in forecast location’s zone

Raw METAR

KNAK 160054Z AUTO 12013KT 10SM SCT025 SCT034 OVC050 18/14 A3014 RMK AO2 SLP208 T01780139

Nearest available reports, up to two hours old. Nearby observations may differ from conditions at your launch site.

Weather in MD

Weather conditions & maps

Aviation weather resources

State / regionCity / location ICAO / station

Extended Forecast · Every 3 Hours

Aviation Weather Forecast at Us Naval Academy, Md

Three-hour spacing throughout. Opening columns use NBH; NBS begins Oct 16 06:00 UTC. NBH issued Oct 16 00:00 UTC. Missing NBH hours or fields show N/A. Hourly accumulation values are not substituted for three- or six-hour values.

Supplemental guidance — not a go/no-go decision. Do not rely on this page alone. Obtain a preflight briefing and verify actual conditions. Favorable symbols and phrases only reflect your selected limits. Pilot responsibility & terms

Switch to 24 Hour ForecastAll times UTC

Forecast for US NAVAL ACADEMY. Values align with the valid time in each column. N/A means unavailable.
DATE VALID TIME	Fri Oct 16							Sat Oct 17								Sun Oct 18								Mon Oct 19
HOUR UTC	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00

Sky conditionsCloud cover	Cloudy94%	Cloudy90%	Cloudy88%	Cloudy90%	Partly cloudy51%	Mostly clear24%	Clear9%	Mostly cloudy76%	Mostly cloudy65%	Cloudy90%	Cloudy90%	Mostly cloudy63%	Clear10%	Partly cloudy48%	Mostly clear26%	Mostly clear13%	Clear6%	Clear5%	Clear5%	Clear6%	Clear6%	Clear12%	Mostly clear19%	Mostly clear13%
Temperature°F	59	60	62	64	72	80	81	70	63	59	54	50	55	57	56	51	48	46	44	44	52	57	57	52
Heat index°F	—	—	—	—	—	83	84	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind chill°F	—	—	—	—	—	—	—	—	—	—	—	45	—	—	—	—	42	40	38	38	—	—	—	—
Wind directionFrom / degrees	SE130°	SSE150°	S190°	SSW200°	SSW210°	SSW200°	SSW200°	WNW300°	NW310°	WNW300°	NNW340°	N350°	N350°	N350°	N350°	N0°	N10°	N10°	NNE20°	NNE20°	NNE30°	NNE30°	NE40°	NE50°
Wind speedmph	6	6	7	9	12	13	12	12	10	10	13	15	16	18	17	14	14	13	13	10	10	9	8	5
Wind gustsmph	12	12	14	16	17	18	20	20	18	18	21	24	24	25	28	23	24	24	21	17	14	12	10	8
CeilingFeet AGL	2,700	1,300	600	500	600	Unlim.	Unlim.	6,000	4,500	3,500	1,800	2,700	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.	Unlim.
IFR ceiling chanceCeiling below 1,000 ft / %	7	27	39	57	45	2	3	6	3	3	11	9	8	3	3	1	2	2	2	2	3	2	2	1
Lowest cloud baseFeet AGL	2,600	1,300	600	500	600	900	22,000	5,000	4,500	3,500	1,800	2,700	2,300	2,200	7,000	Unlim.	Unlim.	Unlim.	Unlim.	28,000	28,000	Unlim.	28,000	28,000
VisibilityStatute miles	10.0	7.0	4.0	3.0	7.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0	10.0
IFR visibility chanceVisibility below 3 mi / %	0	7	11	19	13	0	0	0	0	0	0	2	6	1	0	0	0	0	0	0	2	2	0	0
Flight categoryCeiling + visibility	MVFR	MVFR	IFR	IFR	IFR	VFR	VFR	VFR	VFR	VFR	MVFR	MVFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR
Precipitation chance6 hours ending / %	35		46		24		69		64		37		7		2		1		2		2		5
Precipitation amount6 hours ending / inches	0.03		0.01		0.01		0.05		0.09		0.01		0.00		0.00		0.00		0.00		0.00		0.00
Thunderstorm chance3 hours ending / %	N/A	6	7	6	5	3	3	20	12	2	2	1	0	0	0	0	0	0	0	0	0	0	0	0
Rain probabilityIf precipitation occurs / %	11	46	41	56	13	2	3	64	26	29	60	19	7	7	1	1	1	0	1	1	3	5	5	7
Snow probabilityIf precipitation occurs / %	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
Snow amount6 hours ending / inches	0.0		0.0		0.0		0.0		0.0		0.0		0.0		0.0		0.0		0.0		0.0		0.0
Freezing rainIf precipitation occurs / %	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Ice amount6 hours ending / inches	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
Sleet probabilityIf precipitation occurs / %	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Mixing heightFeet AGL	600	1300	600	800	1400	2000	1500	600	900	1000	900	2600	4900	5900	5200	2600	2100	1700	1400	1300	2800	3500	3500	700
Transport wind directionMixed layer / from degrees	SE140°	SSE160°	S190°	SSW200°	SW220°	SSW210°	SW220°	NW310°	NW310°	NW310°	N350°	N350°	N350°	NNW340°	N350°	N0°	N0°	N10°	NNE20°	NNE20°	NE40°	NNE30°	NE40°	NE40°
Transport wind speedmph / mixed layer	13	13	13	15	18	18	16	17	18	17	21	24	26	28	24	21	18	16	16	14	12	12	9	9
Relative humidityPercent	100	100	100	100	81	69	65	84	90	83	93	93	61	51	47	54	61	60	65	68	50	43	45	61
Dew point°F	59	60	62	64	66	69	68	65	60	54	52	48	42	39	36	35	35	33	33	34	34	35	36	39
Temp / dew spread°F	0	0	0	0	6	11	13	5	3	5	2	2	13	18	20	16	13	13	11	10	18	22	21	13

VFRMVFRIFRLIFRN/A: unavailable · Unlim.: unlimited ceiling · AGL: above ground level

About this forecast

Flight category uses the more restrictive of forecast ceiling (CIG) and visibility. Lowest cloud base is shown separately and is not substituted for ceiling. Both inputs must be available to assign a category.

Rows marked 1 hour describe only the hour ending at that column. Six-hour blocks cover the displayed columns ending at their valid time. Edge blocks may cover only part of the displayed table; hover to see their full time range. A six-hour precipitation limit applies to all covered columns, without dividing its probability or amount. Other personal limits compare the forecast value at each column time, not every moment between forecasts.

Air Sports Flying Conditions compares only the limits you enable: a thumbs up means all selected limits are met, a thumbs down means at least one is exceeded, and a question mark means required data is missing. Click a symbol for details. This is a personal forecast comparison, not a flight clearance.

Snow, freezing-rain, sleet, and rain probabilities describe precipitation type if precipitation occurs. Snow and ice accumulation periods are specified in each row. Mixing height and transport winds describe the atmospheric mixing layer, not thermal strength or winds at a specific flight altitude.

Curves connect model forecast points for readability and do not add intermediate forecast values. Wind arrows point toward the direction of travel; compass labels show where the wind comes from. Wind chill and heat index are shown only in their applicable ranges. A dash in those rows means not applicable; N/A means required data is unavailable. Compare this guidance with observations, official aviation forecasts, and your preflight briefing.

View source NBS bulletin

 KNAK    NBM V5.0 NBS GUIDANCE    10/16/2026  0000 UTC
 DT /OCT  16            /OCT  17                /OCT  18                / 
 UTC  06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 
 FHR  06 09 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69 72 
 TXN        59          81          50          57          44          57
 XND         2           2           2           2           2           2
 TMP  60 62 64 72 80 81 70 63 59 54 50 55 57 56 51 48 46 44 44 52 57 57 52
 TSD   2  2  1  2  2  2  4  3  3  3  3  2  2  2  2  2  2  2  2  2  2  2  2
 DPT  60 62 64 66 69 68 65 60 54 52 48 42 39 36 35 35 33 33 34 34 35 36 39
 DSD   1  1  1  1  1  1  3  5  3  3  5  4  3  4  4  4  3  3  4  4  4  4  4
 WBG  60 61 63 71 78 75 68 61 56 52 48 53 54 50 46 44 42 40 41 49 54 51 48
 SKY  90 88 90 51 24  9 76 65 90 90 63 10 48 26 13  6  5  5  6  6 12 19 13
 SSD   8 10  8 33 22 20 29 33  9 10 37 16 39 40 19  8  6  7  6 10 15 30 13
 WDR  15 19 20 21 20 20 30 31 30 34 35 35 35 35 36  1  1  2  2  3  3  4  5
 WSP   5  6  8 10 11 10 10  9  9 11 13 14 16 15 12 12 11 11  9  9  8  7  4
 WSD   2  2  1  1  1  1  2  3  2  2  2  1  2  2  2  3  3  4  4  5  6  6  6
 GST  10 12 14 15 16 17 17 16 16 18 21 21 22 24 20 21 21 18 15 12 10  9  7
 GSD   2  3  3  2  2  3  4  4  3  3  3  2  2  3  3  4  5  6  6  7  8  9  9
 P06  35    46    24    69    64    37     7     2     1     2     2     5
 P12        67          70          79          12           2           5
 Q06   3     1     1     5     9     1     0     0     0     0     0     0
 Q12         4           6          10           0           0           0
 DUR         6           2           6           0           0           0
 T03   6  7  6  5  3  3 20 12  2  2  1  0  0  0  0  0  0  0  0  0  0  0  0
 T06  10    12    11    30    20     5     1     0     0     0     0     0
 T12        12          30          20           1           0           0
 PZR   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 PSN   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1  0  0  0
 PPL   0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 PRA  46 41 56 13  2  3 64 26 29 60 19  7  7  1  1  1  0  1  1  3  5  5  7
 S06   0     0     0     0     0     0     0     0     0     0     0     0
 SLV 140140140110100100120120110 63 39 33 28 26 21 18 16 18 19 23 29 35 40
 I06   0     0     0     0     0     0     0     0     0     0     0     0
 CIG  13  6  5  6-88-88 60 45 35 18 27-88-88-88-88-88-88-88-88-88-88-88-88
 IFC  27 39 57 45  2  3  6  3  3 11  9  8  3  3  1  2  2  2  2  3  2  2  1
 LCB  13  6  5  6  9220 50 45 35 18 27 23 22 70-88-88-88-88280280-88280280
 VIS  70 40 30 70100100100100100100100100100100100100100100100100100100100
 IFV   7 11 19 13  0  0  0  0  0  0  2  6  1  0  0  0  0  0  0  2  2  0  0
 MHT  13  6  8 14 20 15  6  9 10  9 26 49 59 52 26 21 17 14 13 28 35 35  7
 TWD  16 19 20 22 21 22 31 31 31 35 35 35 34 35 36  0  1  2  2  4  3  4  4
 TWS  11 11 13 16 16 14 15 16 15 18 21 23 24 21 18 16 14 14 12 10 10  8  8
 SOL   0  0  1 32 54 26  6  0  0  0  1 44 50 24  5  0  0  0  0 36 51 46 25

US CONUS Extremes

Current reports
2334 reporting stations

High temperature

90°FRed Bluff MuniKRBL · CA
Oct 15 05:54 PM PDT
Reported 64 min ago+4 tied stations

Low temperature

21°FBerthoud PassK0CO · CO
Oct 15 07:35 PM MDT
Reported 23 min ago

Highest wind

35 mphEllsworth AFBKRCA · SD
Oct 15 07:21 PM MDT
Reported 37 min ago+1 tied stations

Highest gust

54 mphMobridge MuniKMBG · SD
Oct 15 08:16 PM CDT
Reported 42 min ago

High altimeter

30.78 inHgMonarch PassKMYP · CO
Oct 15 07:35 PM MDT
Reported 23 min ago

Low altimeter

29.71 inHgMuskegon Cnty ArptKMKG · MI
Oct 15 09:44 PM EDT
Reported 14 min ago

High heat index

96°FBoca Raton ArptKBCT · FL
Oct 15 08:53 PM EDT
Reported 65 min ago

Low wind chill

14°FBerthoud PassK0CO · CO
Oct 15 07:35 PM MDT
Reported 23 min ago

About these extremes

Highest and lowest available station readings, not daily records. Reports must be no more than two hours old. US CONUS coverage includes the 48 contiguous states and D.C.; Alaska and Hawaii are excluded from the national summary. Mount Washington (KMWN) is excluded from the national summary but remains eligible for New Hampshire state extremes. Stations missing from the inventory or feed are not included.

Missing values are never zero. Invalid temperature, wind and altimeter values are excluded by field; gusts below sustained wind and dew points above temperature are rejected. Reports explicitly marked ASOS or AWOS NOT TRANSMITTING are omitted. Unusual readings can still be sensor errors. Heat index and wind chill appear only when applicable. Altimeter settings are not station pressure.

0 invalid fields and 0 non-transmitting station reports excluded in this scan. Times use the reporting METAR station’s verified timezone, including daylight saving time. UTC is labeled when a station timezone is unavailable. Report ages are calculated when this page loads.

Pilot responsibility & use of this forecast

Do not use this page as your only source for a flight decision. Launch Code provides supplemental, automated weather guidance. It is not a substitute for a complete preflight weather briefing, current observations, applicable aviation forecasts and advisories, or your assessment of actual conditions at the launch site and along your intended route.

You are responsible for deciding whether to launch, continue, divert, or land. Fly only within your training, experience, personal minimums, aircraft limitations, and applicable operating rules and qualifications. Verify the forecast location, issue time, and valid times. Recheck conditions before departure and throughout the flight; delay or cancel when conditions are uncertain or unsuitable.

Forecasts may be incomplete, delayed, incorrect, or different from the weather you encounter. Conditions can change rapidly. Missing data or a hazard not shown on this page does not mean that the hazard is absent. Air Sports Net does not guarantee the accuracy, completeness, timeliness, or suitability of this guidance for any flight.

A favorable symbol, color, or phrase is not a recommendation or authorization to fly. Personal-limit results compare only the available forecast values against the checks you enable. They do not evaluate every risk. Phrases such as “Go Fly” are optional display captions, not operational advice.

Obtain a preflight briefing and consult additional aviation weather sources. In the United States, visit Flight Service or call 1-800-WX-BRIEF. Use of this forecast is at your own risk and is subject to the Air Sports Net Terms of Use.

Graphics are not to scale and should not be scaled for interpolation.

US NAVAL ACADEMY KNAK

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