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 5:33AM||Sunset 8:35PM||Saturday July 4, 2020 10:49 PM MDT (04:49 UTC)||Moonrise 8:31PM||Moonset 4:53AM||Illumination 100%|
7 Day Forecast for Marine Location Near Nunn, COHourly EDIT Help
Area Discussion for - Denver/Boulder, CO  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KBOU 050151 AFDBOU
Area Forecast Discussion National Weather Service Denver/Boulder CO 751 PM MDT Sat Jul 4 2020
UPDATE. Issued at 751 PM MDT Sat Jul 4 2020
Showers and thunderstorms have cleared out of the mountains and I-25 corridor with clearing skies spreading across the forecast area. Areas of showers and thunderstorms remain over Morgan, Washington and Lincoln Counties, but trends show the intensity and coverage decreasing. Shower activity over the plains should be completely ended by about 9 PM. Winds have also been decreasing, and impact on evening outdoor activities should be minimal after sunset.
SHORT TERM. (This evening through Sunday) Issued at 254 PM MDT Sat Jul 4 2020
There is broad "Denver Cyclone" circulation going at this time. Convection is going over the mountains and foothills and has recently commenced along Douglas/Elbert County border northward to DIA line. There is some drying/lowering of the dew points in the downsloping off the Palmer ridge. For example; DIA's dew point temperature is 42 F at present time. The motion of the storms is non-existent. Models keep upper ridging over the CWA tonight and Sunday, with weak southwesterly flow aloft tonight and weak west- northwesterly flow aloft on Sunday. The QG Omega fields show neutral vertical velocity for the first two periods. The low level winds should continue stays quo through early this evening, then normal drainage patterns. Models have some form of easterlies on Sunday from 18Z onward. Moisture wise, Precipitable water values are only a tad lower Sunday afternoon than they are, suppose to be, early this evening. The highest CAPE proggs for this evening are over the southeastern CWA, mainly Lincoln County. For Sunday afternoon, the highest values are over the mountains and foothills. For pops this evening, will mainly gave "chance"s through mid/late evening, then nothing overnight. For Sunday aftenoon's pops, 20%-50%s with the highest in the mountains. Sunday's high temperatures look close to today's highs.
LONG TERM. (Sunday night through Saturday) Issued at 143 PM MDT Sat Jul 4 2020
Sunday night through Tuesday, upper level high pressure will extend from the Desert Southwest into the Central Plains States with an upper level trough of low pressure over the western United States. North central and northeastern Colorado will be under the influence of a southwesterly flow aloft with some lingering subtropical moisture over the area. This pattern will lead to very warm temperatures along with isolated to scattered high based afternoon and evening showers and thunderstorms through the period. The main threat with the storms will be gusty winds and dangerous cloud to ground lightning. However, local moisture convergence due to boundary interactions could result in a couple of stronger storms with locally heavy rain and small hail across the plains east of Denver Sunday night and Monday. Drier conditions on Tuesday will lead to elevated fire weather conditons.
On Wednesday, the models are showing the upper high over Desert Southwest flattening with a drier westerly flow aloft over Colorado. This pattern should result in dry weather across the CWA with above normal temperatures continuing. The combination of low relative humidity and increasing westerly winds will lead to increasing fire danger across the high country.
Hot and mostly dry weather is expected Thursday through Saturday as the upper level ridge of high pressure builds over Rocky Mountain Region and Central Plains States. Temperatures could reach 100 degrees across some plains locations on Friday and Saturday. The continued above normal temperatures and low relative humidity will keep the fire danger elevated across the high country through the period.
AVIATION. (For the 00Z TAFS through 00Z Sunday evening) Issued at 751 PM MDT Sat Jul 4 2020
Storms have moved east of the Denver area airports and no more impacts to aviation are expected tonight. Southerly winds should prevail overnight. Unlimited ceilings and visibilities will prevail through tomorrow morning, but another round of showers and thunderstorms are expected in the afternoon.
BOU WATCHES/WARNINGS/ADVISORIES. None.
UPDATE . Dankers SHORT TERM . RJK LONG TERM . JK AVIATION . Dankers
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.
|Fort Collins/Loveland - Northern Colorado Regional Airport, CO||16 mi||53 min||SSW 8||10.00 mi||Fair||65°F||55°F||70%||1015.5 hPa|
|Greeley, Greeley-Weld County Airport, CO||21 mi||53 min||SW 10||10.00 mi||Fair||68°F||55°F||65%||1017 hPa|
Link to 5 minute data for KFNL
Wind History from FNL (wind in knots)
|1 day ago||E||E||SE|
|2 days ago||SE||S||E||Calm||N||N||N||N||N||NE||E||SE||SE||SE||S||S||SE|
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GEOS Local Image of CentralPlains 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 (0,6,7,8)(on/off)  Help
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