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 7:03AM||Sunset 6:14PM||Tuesday February 18, 2020 8:13 AM MST (15:13 UTC)||Moonrise 3:36AM||Moonset 1:52PM||Illumination 26%|
7 Day Forecast for Marine Location Near Picture Rocks, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KTWC 181052 AFDTWC
Area Forecast Discussion National Weather Service Tucson AZ 350 AM MST Tue Feb 18 2020
SYNOPSIS. Dry conditions with above normal daytime temperatures through Thursday. A few showers may develop Friday, then scattered to numerous to prevail Friday night and Saturday as a weather system moves across the area. A chance of showers exists Saturday evening mainly east of Tucson, then dry conditions return Sunday into Monday.
DISCUSSION. Clear skies prevail across southeast Arizona early this morning along with light surface winds. Generally zonal flow aloft will continue across the area into Wednesday. This pattern will translate into sunny skies or a few cirriform clouds today, then increasing cirriform clouds from the south tonight into early Wednesday. Clouds are expected to decrease Wednesday afternoon followed by clear skies later Wednesday night.
Various 18/00Z models continue to depict upper ridge amplification over this forecast area Thursday ahead of a deepening low pressure system near the California coast. Flow aloft will become increasingly southwesterly Thursday night as the upper ridge axis moves east of the area, and low pressure aloft becomes centered west of southern California. The upshot is for dry conditions to continue Thursday into Thursday night, and most likely Friday morning as well.
Thereafter, a few showers should develop Friday afternoon especially east of a Safford-Sierra Vista line as the upper low approaches the southern California coast. The 18/00Z GFS/GEFS and ECMWF/ECENS were in fairly decent agreement regarding the expected precip potential starting Friday evening and continuing into Saturday as the upper low moves eastward into southern California by midday Saturday. As such, forecast confidence has increased regarding start/end timing of rainfall and high elevation mountain snow, as well as projected liquid amounts and snow accumulations associated with this system.
At any rate, the official forecast continues with isolated to scattered showers favoring locales east of Tucson Friday evening, then scattered to numerous showers across much of the area late Friday night into Saturday afternoon. The upper low is progged to fill while moving rapidly eastward into eastern New Mexico by daybreak Sunday. As such, isolated to scattered showers mostly east of Tucson Saturday evening followed by a return of dry conditions late Saturday night. Dry conditions will then prevail Sunday into Monday under northwesterly flow aloft.
The event total rainfall amounts are presently forecast to generally range up to around 0.30 inch in the valleys, and mainly from 0.10" to 0.50" across the mountains. However, liquid amounts approaching 0.80" may ultimately occur across the White Mountains. Event total snowfall amounts of 2-6 inches should be limited to above 8000 feet.
High temperatures this afternoon and Wednesday will range about 5-9 degrees above normal. Even warmer temperatures are on tap Thursday, and portions of the Tucson metro area may reach or exceed 80 degrees. A cooling trend will prevail Friday into Saturday followed by warmer temperatures returning especially next Monday.
AVIATION. Valid through 19/12Z. SKC-FEW clouds above 20k ft MSL into this afternoon becoming SCT-BKN clouds above 20k ft MSL later tonight and into Wednesday morning. Surface wind variable in direction under 12 kts. Aviation discussion not updated for TAF amendments.
FIRE WEATHER. Dry conditions with above normal daytime temperatures through Thursday. A few showers should develop Friday, especially during the afternoon hours, then scattered to numerous showers Friday night into Saturday. Expect isolated to scattered showers mainly east of Tucson Saturday evening, then dry conditions return Sunday into Monday. 20-foot winds will be terrain driven under 15 mph through Wednesday. Some gusty east to southeast winds should occur at times Thursday afternoon into Friday, then gusty southwest winds Saturday afternoon. Somewhat less wind to prevail Sunday into Monday, although occasional west to northwest afternoon gusts are forecast to occur.
TWC WATCHES/WARNINGS/ADVISORIES. None.
DISCUSSION . Francis AVIATION . Michael FIRE WEATHER . Michael
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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.
|Davis-Monthan Air Force Base, AZ||19 mi||4.3 hrs||ESE 7||10.00 mi||Fair||44°F||34°F||71%||1012.3 hPa|
|Tucson, Tucson International Airport, AZ||19 mi||4.3 hrs||S 3||10.00 mi||Fair||46°F||33°F||61%||1012.9 hPa|
Link to 5 minute data for KTUS
Wind History from TUS (wind in knots)
|1 day ago||SE||S||S||SE||S||S||S||S||NW||N||N||N||N||Calm||Calm||S||S||S||SE||SE||SE||SE|
|2 days ago||SE||S||SE||S||S||Calm||Calm||NE||W||N||N||N||Calm||SW||S||S||SE||SE||SE||SE |
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GEOS Local Image of Southwest 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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Tucson, AZ (10,2,3,4)(on/off)  Help
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