Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 6:41AM||Sunset 7:25PM||Wednesday April 1, 2020 3:03 AM MDT (09:03 UTC)||Moonrise 11:05AM||Moonset 1:33AM||Illumination 58%|
7 Day Forecast for Marine Location Near Englewood, COHourly EDIT Help
Area Discussion for - Denver/Boulder, CO  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KBOU 010245 AFDBOU
Area Forecast Discussion National Weather Service Denver/Boulder CO 845 PM MDT Tue Mar 31 2020
UPDATE. Issued at 839 PM MDT Tue Mar 31 2020
Radar showing some light showers over northeast Weld and Logan counties this evening. Most of this likely virga so will hold off adding pops to those grids as they should die off shortly. Otherwise just some minor adjustments to the temperatures and winds.
SHORT TERM. (This evening through Wednesday) Issued at 330 PM MDT Tue Mar 31 2020
Moderate westerly flow aloft has been generating areas of mountain wave cloudiness, both over the mountains and out onto the plains. Temperatures have warmed nicely, and breezy conditions have been confined to the 25 to 30 MPH range. Decreasing winds are expected by evening as surface de-couple from the flow aloft.
Wednesday will be mostly dry and a few degrees warmer as west- southwesterly flow aloft continues across the state. By afternoon, moisture aloft will begin increasing over the mountains as a weak weather disturbance approaches from the northwest. Light snow will begin to develop by evening over the mountains. Sensible weather on the plains will wait until later tomorrow night.
LONG TERM. (Wednesday night through Tuesday) Issued at 330 PM MDT Tue Mar 31 2020
Moderately strong west-southwesterly flow aloft is progged Wednesday night for the forecast area. At that time, there is a pretty decent upper trough northwest of Colorado over the northern Rockies. On Thursday, that west-southwesterly flow aloft increases as the trough nears us. The bottom of that upper trough moves across the CWA Friday morning, with 70-90 knot zonal jet level flow in place Friday afternoon and night. There is weak upward vertical velocity progged for the CWA Wednesday night well into Thursday night. Subsidence is progged on Friday with neutral forcing Friday night. The approaching upper trough helps drag a cold front into the CWA, with upslope flow behind it, Wednesday evening. The low level wind and pressure fields keep northeasterly upslope low level flow over the plains and foothills all day Thursday and much of Thursday night. Southeasterlies are progged on Friday with normal drainage patterns Friday night. Moisture increases in the lower levels of the plains Wednesday night. Moisture gets fairly deep over much of the CWA Thursday and Thursday evening. Then moisture decreases into Friday before increasing again Friday afternoon. There is some minor CAPE around Wednesday evening, then again late day Thursday. There is a bit of measurable precipitation on the QPF fields Wednesday night, mainly over the northwestern half of the CWA. There is better coverage by Thursday afternoon and evening for much of the CWA, although amounts are not substantial. There is a tiny bit of measurable precipitation in the high country on Friday. The forecast soundings show it cold enough for snow by 12Z Thursday morning for the plains. There could be some rain over the southern half of the plains Thursday afternoon, then all snow Thursday evening. For temperatures, Thursday's highs should be about 9-18 C colder than Wednesday's highs. Fairly significant! Friday's highs will be a tad colder than Thursday's. For the later days, Saturday through Tuesday, models have southwesterly flow aloft for us through Tuesday. The moisture is not great, maybe enough for a few late day showers mainly in the alpine areas. Temperatures will be above seasonal normals Sunday through Tuesday.
AVIATION. (For the 00Z TAFS through 00Z Wednesday evening) Issued at 839 PM MDT Tue Mar 31 2020
No aviation impact tonight and Wednesday morning as ceilings and visibilities remain unrestricted. Winds will be generally out of the south overnight and southwesterly until late Wednesday afternoon, when it may transition to west/northwest ahead of an approaching cold front.
BOU WATCHES/WARNINGS/ADVISORIES. None.
UPDATE . Cooper SHORT TERM . Dankers LONG TERM . RJK AVIATION . Cooper
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Denver - Centennial Airport, CO||12 mi||70 min||N 0||10.00 mi||Fair||41°F||24°F||51%||1007 hPa|
|Buckley Air Force Base Airport, CO||14 mi||65 min||S 8||10.00 mi||A Few Clouds||41°F||25°F||54%||1006 hPa|
|Broomfield / Jeffco, CO||17 mi||74 min||W 8||10.00 mi||Fair||46°F||23°F||40%||1009.8 hPa|
|Denver, Denver International Airport, CO||22 mi||70 min||SW 11||10.00 mi||A Few Clouds||45°F||26°F||48%||1004.7 hPa|
|Erie Municipal Airport, CO||23 mi||57 min||N 0||10.00 mi||Partly Cloudy||41°F||25°F||53%||1010.5 hPa|
Link to 5 minute data for KAPA
Wind History from APA (wind in knots)
|1 day ago||SW|
|2 days ago||S||SW||S||S||SW||Calm||Calm||N||E||E||S||E||E||SE||SE||Calm||SW||Calm||S||SE |
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GEOS Local Image of EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Denver/Boulder, CO (5,6,7,8)(on/off)  Help
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