Marine Weather and Tides
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 6:34AM||Sunset 6:55PM||Friday September 17, 2021 10:25 AM CDT (15:25 UTC)||Moonrise 5:29PM||Moonset 2:50AM||Illumination 84%|
7 Day Forecast for Marine Location Near Florence, ALHourly EDIT Help
Area Discussion for - Huntsville, AL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KHUN 171433 AFDHUN
Area Forecast Discussion National Weather Service Huntsville AL 933 AM CDT Fri Sep 17 2021
NEAR TERM. (Rest of Today) Issued at 933 AM CDT Fri Sep 17 2021
Surface analysis this morning shows the remnants of Nicholas (maintaining a slight spin as evident on the KPOE and KSHV radars) over central LA. This feature will continue to help surge some excess tropical moisture northward. 12z BMX sounding already shows PW in excess of 2" while OHX has climbed to over 1.8". Add in the encroaching mid level trough from the west, and we will have enough to support increasing coverage of showers with some embedded thunderstorms through this evening. While rain chances are increasing, rainfall totals should generally remain below 0.75", outside of an isolated heavy downpour. Mostly cloudy skies will remain in place throughout the day, limiting temps this afternoon to the low 80s. Forecast from earlier package is on track and only minor amendments are anticipated.
SHORT TERM. (Tonight through Sunday) Issued at 302 AM CDT Fri Sep 17 2021
Convection will gradually wane over the course of the evening and expect a fairly tranquil night, save for some lingering precipitation along remnant outflow boundaries. Expect more of the same for Saturday and Sunday as we'll remain in this stagnant, wet pattern. The upper trough will slowly meander eastward, tapping into the moist air mass. Widespread showers and storms are expected to develop once again, especially during the afternoon/evening hours. With PWATs approaching 2", heavy downpours will continue to be a concern with any storms that can develop. As one might expect, overcast conditions and widespread rainfall during the afternoon will limit temperatures as highs in the upper 70s to around 80 degrees are expected both days.
LONG TERM. (Sunday night through Thursday) Issued at 302 AM CDT Fri Sep 17 2021
On Monday, a shortwave trough will be progressing across the Intermountain West. Strong ridging remains in place over the Mid Atlantic and Northeast during this time, so as the trough steadily moves eastward, southerly flow will be enhanced over the Southeast. Widespread rainfall with a few thunderstorms developing in the afternoon and evening are expected on Monday. The shortwave trough will push a surface low ahead of it over the Great Lakes region with an associated cold front sweeping through the Great Plains early next week. Likely showers and some storms are again possible on Tuesday as the cold front marches across the CONUS, but less coverage is expected compared to this weekend, allowing high temperatures to reach the low to mid 80s.
The stronger cold front sweeps through the area Tuesday night, but potentially not until Wednesday afternoon. Expect rain and storms ahead of the front, regardless of timing. Periodic heavy rainfall is possible, on top of already moist soils from the daily deluge of rain that will be the next several days. Localized flooding of poor drainage and low lying areas is possible, but not expected at this time. There remains some uncertainty with just how cool our temperatures will get behind the cold front with gusty north winds, but high temperatures in the mid 70s with lows in the low 50s are reasonable to close out next week underneath mostly clear skies. Needless to say, the weather will be fully cooperating with the first day of Fall on the 22nd. These temperatures may need to be lowered in future updates as confidence increases, potentially producing our first low temperature in the 40s since May 14th. For context and a fun climatological fact, the average day with our first low
AVIATION. (For the 12Z TAFS through 12Z Saturday morning) Issued at 640 AM CDT Fri Sep 17 2021
MVFR conditions will be the predominant flight category at each terminal for most of the day due to low ceilings as dense cloud cover lingers over the area. Showers and thunderstorms will increase by this afternoon as an area of low pressure approaches the region from the west. This activity will gradually wane by late this evening, but low stratus will create IFR conditions by late tonight into early Saturday morning.
HUN WATCHES/WARNINGS/ADVISORIES. AL . NONE. TN . NONE.
NEAR TERM . Barron SHORT TERM . AMP.24 LONG TERM . 30 AVIATION . AMP.24
For more information please visit our website at weather.gov/huntsville.
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|Muscle Shoals, North West Alabama Regional Airport, AL||6 mi||32 min||SSE 7||10.00 mi||Overcast||80°F||71°F||74%||1018.4 hPa|
Link to 5 minute data for KMSL
Wind History from MSL (wind in knots)
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