Marine Weather and Tides
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 5:28AM||Sunset 7:40PM||Monday May 22, 2017 2:32 PM MST (21:32 UTC)||Moonrise 3:27AM||Moonset 4:11PM||Illumination 8%|
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7 Day Forecast for Marine Location Near Utting, AZHourly EDIT Help
Area Discussion for - Phoenix, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 kpsr 221627|
area forecast discussion
national weather service phoenix az
927 am mst Mon may 22 2017
High pressure building in from the west will continue a gradual
warming trend across the region through the middle of the week, with
high temperatures rising well above 100 degrees at many lower desert
locations. Somewhat cooler temperatures are likely to return by the
latter portion of next week as low pressure once again moves into
the western us.
The main story today and the next couple of days will be the heat.
12z 500 mb analysis showed 581 dm heights across northern arizona
and 584 dm heights across southern arizona, placing the central
deserts somewhere between the two. Heights will gradually increase
and peak tomorrow through Wednesday, with the highest heights, and
thus the warmest temperatures, across the western portions of our
cwa closer to the ridge axis. The heatrisk will be greatest on
Wednesday where values will be flirting with heat warning
criteria, and if models begin to trend warmer, a heat watch or
warning may be issued for portions of our cwa.
Hard-to-ignore strong pacific upper ridging remains just off-shore
of the u.S. West coast this early morning. Trailing and elongated
shortwave off the large upper low near the great lakes is moving
through northern arizona currently but do little by way of keeping
the anticipated temperature warming at bay today. Building
subtropical ridge heights, part of the larger northeast pacific
ridge core, will deflect any of the minimal height falls from the
passing shortwave today resulting in warmer high temperatures
today over readings from Sunday. Sensible wx impacts associated
with the upper shortwave could be some CU fields over the rim and
an isolated shower or two over the rim and white mountains by the
early afternoon. Approx 10 dam increase in the 1000-500mb surface
along with a few degree warmer start to the day should result in 3
to 4 degrees of aftn high temperature warming over Sunday's obs
- bringing forecast values 8 to 10 degrees above normal for the
Ridging will fully transition into the area Tuesday and Wednesday
with 500mb heights 585dam or greater and 850mb temps 25-26c.
Daytime temperature warming trend will continue over today's above
average warmth, adding a degree or two each afternoon Tuesday and
Wednesday. While these temperatures are above seasonal normals,
atmospheric parameters of heights and temps are not outside of
seasonal naefs/esrl percentile ranges. Heatrisk levels with these
temperatures do rise into the moderate to borderline high
categories and given the recent stretch of cooler weather over the
previous week, this warming could catch folks off-guard. By
Wednesday, upper trough heights begin to flatten as a strong low
pressure feature enters the pacific northwest. Wednesday will be|
the peak of our warming however, as warmer temperatures aloft are
transferred surface-ward under better mechanical mixing after the
ridge axis clears to our east.
Temperatures Thursday through next weekend will return to more
seasonal readings as long-wave troughing returns over the western
conus. Lowering heights and slight cool advection will create
gradient driven wind increases, especially across the peninsular
ranges between san diego-el centro Wednesday and then regionally
on Thursday. Gusty surface winds, west to southwesterly in nature,
will sweep into the area and could generate some patchy blowing
dust at times Wednesday for the imperial area and then across
southeast ca for Thursday. High temperatures tumble to readings
100 degrees or cooler Thursday and could stay below triple digit
readings through the weekend as longwave troughing holds over the
region, keeping elevated thicknesses and warmth removed from the
South-central arizona including kphx, kiwa, and ksdl, and southeast
california/southwest arizona including kipl and kblh:
light winds will prevail through Monday generally following their
typical diurnal directions. Skies will remain clear with no other
Aviation discussion not updated for amended tafs.
Thursday through Monday:
a minor cooldown will occur Thursday and Friday, with highs in the
90s forecast for both days across the lower deserts. Dry
conditions will continue to support single-digit rh values each
afternoon. Westerly wind speeds will be strongest on Thursday,
when gusts of 30-40 mph (locally stronger) are forecast to occur.
This will likely create elevated fire weather conditions,
especially across southeast california and the lower colorado
river valley. Winds should weaken into Friday, but will still be
breezy amidst slightly cooler temperatures. A warming trend will
commence on Saturday and Sunday, with high temperatures in the
upper 90s making a return. Winds will be light this weekend area-
wide high pressure builds over the great basin.
Spotter information statement
Spotter reports should not be needed.
Visit us on facebook, twitter, and at weather.Gov/phoenix
previous discussion... Nolte
fire weather... Rogers
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|Blythe, Blythe Airport, CA||50 mi||40 min||Var 3||10.00 mi||Fair||104°F||24°F||6%||1009.1 hPa|
Wind History from BLH (wind in knots)
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|2 days ago||N|
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