Marine Weather and Tides
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 5:49AM||Sunset 6:47PM||Wednesday April 14, 2021 3:20 AM MST (10:20 UTC)||Moonrise 7:26AM||Moonset 9:19PM||Illumination 6%|
7 Day Forecast for Marine Location Near Douglas, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KTWC 140922 AFDTWC
Area Forecast Discussion National Weather Service Tucson AZ 223 AM MST Wed Apr 14 2021
SYNOPSIS. Dry weather will continue through the end of the work week with afternoon breeziness each day. Daytime high temperatures will remain above normal today, lowering to near normal starting Thursday. There will be a slight chance of showers mainly across the White Mountains Saturday into early next week.
DISCUSSION. A fairly benign day of weather is expected today with some increase in cirroform clouds this afternoon. The area remains under dry westerly flow aloft as an upper low has taken residence across the northern half of Nevada. This will continue to result in some enhancement to the afternoon breezes due as the pressure gradient remains fairly tight. Expect temperatures to be several degrees above normal today.
As the upper low shifts east Thursday, expect continued breezy conditions with some locally windy conditions east of Tucson. A Fire Weather Watch remains in effect Thursday east of Tucson. See Fire Weather discussion below for additional information. Temperatures will drop several more degrees Thursday with considerable high level cloudiness.
A weak southern stream disturbance will stay mainly south of our area Friday afternoon into Friday night. However, we can't rule out some virga mainly near the International border. For this weekend our attention will turn to the north as the backside of a trough looks to slide down from Utah into northern Arizona Saturday then into southern Arizona Sunday. Still some differences in the ensembles in terms of how far west this system will be, though the trends have been a bit more to the west over the past 24 hours. Moisture availability will be fairly limited but a slight chance to lower end chance of showers looks good in the White Mountains Saturday afternoon, then pushing southward along the AZ/NM border on Sunday. Given the steep lapse rates and some modest instability, a lightning strike or two can't be ruled out Sunday. A remaining shower or two is possible across the White Mountains Monday with dry conditions elsewhere. Otherwise, expect near to slightly below normal temperatures this weekend into early next week with some afternoon breezes, especially Friday and Saturday. A return to drier and warmer conditions is expected by the middle of next week.
AVIATION. Valid through 15/12Z. SCT-BKN clouds AOA 20k ft MSL thru the forecast period. SFC wind less than 12 kts and variable in direction thru 14/17Z and then again aft 15/06Z. Between 14/17Z and 15/06Z, SLY/SWLY SFC wind at 14- 20 kts with gusts to 25-30 kts. Aviation discussion not updated for TAF amendments.
FIRE WEATHER. Breezy winds will continue each afternoon and early evening through the upcoming weekend. Expect the strongest winds on Thursday when critical fire weather thresholds are likely to be reached east of Tucson, with 20-ft winds from a southwest to west directly at 20 to 25 mph and gusts to 35-40 mph. A Fire Weather Watch is in effect Thursday afternoon and early evening roughly east of a line from Sonoita to Hannagan Meadow. Minimum RH values will continue to be in the single digits to lower teens through Saturday. Dry weather will prevail through Friday, with a slight chance of showers in the White Mountains Saturday and maybe farther south near the New Mexico line Sunday into Monday. Temperatures will remain above normal today and then cool to near normal/slightly below normal Thursday through Monday.
TWC WATCHES/WARNINGS/ADVISORIES. Fire Weather Watch from Thursday afternoon through Thursday evening for AZZ151>154.
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