Holly Hills, CO Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Holly Hills, CO

June 15, 2024 2:55 PM MDT (20:55 UTC) Change Location
Sunrise 5:29 AM   Sunset 8:31 PM
Moonrise 2:26 PM   Moonset 1:41 AM 
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7 Day Forecast for Marine Location Near Holly Hills, CO
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Area Discussion for - Denver/Boulder, CO
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Area Forecast Discussion National Weather Service Denver/Boulder CO 1127 AM MDT Sat Jun 15 2024


- A return to hot and mainly dry weather this weekend into early next week.

- Snowmelt producing minor impacts from high streams. Gradually diminishing flows next week.

- Cooler for Tuesday and Wednesday

Issued at 1122 AM MDT Sat Jun 15 2024

Satellite shows cumulus clouds slowly growing across the higher elevations this morning, though radar is still quiet. Temperatures have warmed into the 80s across the plains and should continue to warm to around 90F this afternoon. Isolated/widely scattered high-based showers remain possible this afternoon, with gusty outflow winds as the main hazard.

SHORT TERM /Through tonight/
Issued at 248 AM MDT Sat Jun 15 2024

An upper level ridge pattern begins over northeastern Colorado.
Westerly flow and weak mid-level moisture will result in isolated showers mainly west of the Divide. Dry air aloft and low PWATs hint that these showers could produce little to no rainfall. Model soundings display decent DCAPE values between 600-800 J/kg meaning showers could produce wind gusts up to 40 mph. CAMs suggests a shower or two crossing into the lower elevations mainly along the Palmer Divide by late afternoon until early evening. Additionally, warm temperatures return this afternoon.
Areas west of the Divide could reach the upper 60s to upper 70s this afternoon. Temperatures across the urban corridor and plains increase above normal reaching the 90s. Tonight, above normal low temperatures are expected.

LONG TERM /Sunday through Friday/
Issued at 248 AM MDT Sat Jun 15 2024

The overall pattern Sunday through Monday will have SW flow aloft over the area. At the sfc, it appears nern CO will have to contend with a boundary associated with convection to the north both days.
Exactly how far south this boundary will be is a big question mark at this time. It could stay along the CO-NE border area both days or end up further south near a Denver to Akron line. North of this boundary temps will likely be in the 85-90 degree range while south of it readings will be in the mid to upper 90s. In addition, higher dewpoints will be in place north of the boundary with decent MLCAPE both days. However, with that being said, there is a decent capping inversion in place both days which will likely prevent convective development along and north of the boundary. As a result, have kept pops in the isolated category both days near the CO-NE border.

By Tue, little change is expected to the overall pattern aloft as SW flow aloft will continue. A cold front is still expected to move across nern CO late Mon night thru Tue morning. This will lead to a more stable airmass across the plains thru the aftn.
Over the higher terrain, there could be some isold high based tstms in the aftn. As far as highs, readings will drop into the upper 70s to mid 80s across the plains.

For Tue night into early Wed, there are considerable differences in the handling of low level moisture across the area. The GFS has a stronger sfc high pres building into the area with deeper low level moisture remaining to the south and east. Meanwhile, the ECMWF has deeper moisture returning by Tue night. As a result, it has nocturnal convection developing over portions of the plains overnight into early Wed. At this point, confidence is low in either solution so have just left a slight chc of storms across portions of the plains.

As for the rest of Wed, SW flow aloft will remain over the area.
Both the ECMWF and GFS indicate a return of better low moisture across the higher terrain by Wed aftn with increasing MLCAPE. As a result this may lead to sct tstms. Across the plains, it looks more stable by aftn so will only keep in a slight chc of storms. Highs on Wed will still be slightly below seasonal normals across nern CO.

Looking ahead to Thu and Fri, the flow aloft will remain SW.
Meanwhile, the low level flow across the plains will become southeast allowing for deeper low level moisture to return. As a result, will see increasing MLCAPE with at least a slight chc of aftn and evening tstms. Finally, highs will rise back above seasonal levels across nern CO.

AVIATION /18Z TAFS through 18Z Sunday/
Issued at 1122 AM MDT Sat Jun 15 2024

VFR through the TAF period. Still a slight chance of a high based shower or two this afternoon. Main impacts would be from variable/gusty outflow winds with little precipitation expected.
Winds should remain light through the afternoon hours outside any outflow. Drainage flow is expected to prevail overnight.

Low confidence in the wind forecast tomorrow as a weak frontal push, a Denver cyclone, or a well mixed southwest flow are all possible by midday Sunday. For now have opted to keep a fairly light northeast in at DEN.

Issued at 248 AM MDT Sat Jun 15 2024

Elevated flows continue in the mountain streams, with Flood Advisories remaining in effect for the streams above Granby and Grand Lake. Remain alert of the dangers of water that is running high and cold. Flows are expected to gradually decrease next week as the peak snowmelt is passing by.


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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KAPA CENTENNIAL,CO 11 sm62 mincalm10 smPartly Cloudy84°F37°F19%29.94
KBKF BUCKLEY AFB,CO 11 sm57 minS 0910 smMostly Cloudy86°F34°F16%29.91
KBJC ROCKY MOUNTAIN METROPOLITAN,CO 16 sm48 minS 07G1410 smMostly Cloudy Showers in Vicinity 86°F36°F17%29.90
KDEN DENVER INTL,CO 18 sm62 minvar 0410 smPartly Cloudy91°F37°F15%29.89
KEIK ERIE MUNI,CO 21 sm20 minSSE 0410 smMostly Cloudy90°F39°F17%29.84
KCFO COLORADO AIR AND SPACE PORT,CO 22 sm68 minWSW 0510 smClear90°F28°F11%29.92
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