Marine Weather and Tides
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:18AM||Sunset 4:46PM||Saturday November 28, 2020 10:53 PM CST (04:53 UTC)||Moonrise 4:00PM||Moonset 5:29AM||Illumination 99%|
7 Day Forecast for Marine Location Near Nevada, IAHourly EDIT Help
Area Discussion for - Des Moines, IA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KDMX 282330 AFDDMX
Area Forecast Discussion National Weather Service Des Moines IA 530 PM CST Sat Nov 28 2020
DISCUSSION. /Tonight through Saturday/ Issued at 212 PM CST Sat Nov 28 2020
High pressure centered over southern Missouri has allowed for clear skies today. In fact, the nearest clouds on GOES-East satellite are several hundred miles away in Oklahoma/southern Kansas or North Dakota. Abundant sunshine and southwest winds into the area allowed temperatures to climb into the mid to upper 50s by 2 pm for most locations.
Big changes are on the way, however, as a cold font draped across the northern plains will dive south and across Iowa Sunday morning. Southwesterly winds will shift to northwesterly with temperatures dropping rather substantially. Highs for Sunday will will have a hard time cracking 40 degrees with most places topping out in the mid 30s. This will be accompanied by gusty northwest winds behind the front thanks to a tightening pressure gradient with decent cold air advection and subsidence into the area. Model soundings indicate winds at the top of the mixed layer of 30-36 knots depending on model or location with sustained winds at 18-23 kts. Hi-res models such as the hrrr and href suggest better gusts will occur in the southern Nebraska/northern Kansas vicinity. Thus, have opted not to issue a wind advisory as the area remains a few knots shy of criteria. Regardless, it will be a cold and blustery day exacerbated by the relatively mild conditions seen Saturday. Temperatures will continue to drop Sunday evening and with brisk winds continuing overnight Monday morning wind chills will be rather unpleasant . in the single digits.
The forecast for the upcoming week is rather quiet with no precipitation chances in the current forecast at all. While the area will be moisture starved, this does not mean that the pattern is quiet. In fact, the atmospheric pattern over the upcoming week is quite complicated with a number of deep closed lows moving across the country with embedded shortwaves. At certain points the evolution of the systems resembles somewhat of a fujiwhara effect before lifting east. The split flow cuts off moisture to the area but the complicated pattern yields high uncertainty in the temperature forecast for the upcoming week as these systems drop out of Canada. Placement of these systems could result in fairly substantial differences in temperatures.
AVIATION. /For the 00Z TAFS through 00Z Sunday evening/ Issued at 530 PM CST Sat Nov 28 2020
Quiet aviation weather is expected overnight prior to a cold front arriving toward daybreak. Widespread VFR conditions are forecast along with southwest surface winds. The front is forecast to pass through the state on Sunday morning with very strong northwest winds on the backside. Have increased wind speeds and gusts during the day on Sunday and also have added additional cloudiness as climatologically very favorable for status development on backside of frontal passages this time of year. Have kept any ceilings VFR at this time given only limited support for status in guidance.
DMX WATCHES/WARNINGS/ADVISORIES. NONE.
DISCUSSION . Hagenhoff AVIATION . Cogil
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.
|Ames, Ames Municipal Airport, IA||9 mi||61 min||N 0||10.00 mi||Fair||37°F||30°F||76%||1015.4 hPa|
|Boone Municipal, IA||21 mi||59 min||WSW 8||10.00 mi||Fair||41°F||35°F||81%||1014.6 hPa|
|Ankeny Regional Airport, IA||24 mi||79 min||SSW 5||10.00 mi||Fair||43°F||32°F||66%||1015.9 hPa|
Link to 5 minute data for KAMW
Wind History from AMW (wind in knots)
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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.
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Other links: Northern Pacific Contential US Full GOES-East
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