Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Saturday
• 
• High: 70 °
• Low: 32 °
• Clear

• Sunday
• 
• High: 68 °
• Low: 32 °
• Clear

• Monday
• 
• High: 66 °
• Low: 32 °
• Partly Cloudy

• Tuesday
• 
• High: 64 °
• Low: 34 °
• Partly Cloudy

• Wednesday
• 
• High: 59 °
• Low: 34 °
• Partly Cloudy

Area forecast discussion...updated 
National Weather Service Salt Lake City Utah 
418 PM MDT Sat may 25 2013 


Update...updated aviation section. 


&& 


Synopsis...a warm and breezy southwest flow will prevail today. An 
unsettled pattern will develop across the region beginning early 
next week. 


&& 


Discussion...a large and fairly cold trough remains across the 
Pacific northwest this afternoon. Deep southwesterly flow remains 
in place ahead of the trough across much of the western United 
States. Several disturbances are embedded within this flow across 
the Great Basin and can be discerned on afternoon satellite 
imagery. These shortwaves have helped to increase winds across 
much of the area this afternoon and evening. The biggest impact 
with these winds will continue to be rough chop on area lakes 
through this evening and occasional strong crossed winds on east- 
west routes. 


Another warm and windy day is on tap for Sunday...with 
temperatures near to slightly above todays readings. Again...those 
with small boats on area lakes should be prepared for rough chop 
and high profile vehicles and those towing boats and trailers 
should be prepared for occasional cross winds on mainly east-west 
routes. 


Sufficient midlevel moisture will likely be in place by Sunday 
afternoon to trigger a few high based showers and thunderstorms 
across far northern Utah as a disturbance rides by to the north. 
Midlevel moisture is expected to increase a bit further south on 
Monday...which may spread the threat of high based convection 
further south across the remainder of northern and central Utah. A 
weak cold front will cross the state Sunday night which will cool 
temperatures down a bit for Monday. 


Attention then turns a period of unsettled weather that will 
develop Tuesday and continue through most of the remainder of the 
forecast. A negatively titled trough is expected to move through 
the area Tuesday into Wednesday. Sufficient moisture appears to be 
present with this trough with precipitable water values nearing 
0.70 inches to allow for a widespread precipitation threat across 
much of the County Warning Area. Given the global model solutions have become 
quite similar with this system...started to significantly increase 
probability of precipitation Tuesday...along with higher quantitative precipitation forecast values. If the models 
continue to remain consistent...these probability of precipitation will likely have to 
increase further. Most models bring another disturbance embedded 
within the longwave trough through the area later Wednesday into 
Thursday. Started increasing probability of precipitation in this period...and lowered 
temperatures a bit. 


The main message is that this weekend into Monday will be fairly 
warm with near to above normal temperatures...followed by a 
period of unsettled conditions for much of next week. Expect 
temperatures to be near to below normal...with above normal 
chances of precipitation. Confidence has increased above 
yesterdays levels that this pattern will come to fruition. 


&& 


Aviation...northerly winds across the slc terminal expected 
through around 03z. A 20 percent chance that the southerly 
surface winds will overtake through 03z as well. Southeast winds 
will return after 03z. Otherwise expect VFR conditions to 
continue through the valid taf period. 


&& 


Fire weather...upper level trough near the West Coast will keep the 
district under deep southwest flow aloft through early next week. 
This afternoon...gusty south winds and relative humidity values 
below 15 percent are occurring in many valley locations across the 
state. After poor overnight relative humidity recovery anticipate 
that we will see similar conditions once again on Sunday ahead of an 
approaching front. Although weather conditions will reach critical 
thresholds in many areas...fuels remain non-critical at this time 
per latest reports. There is also the threat for isolated dry 
thunderstorms across northern Utah on Sunday. 


A weak cold front front will move into the state Sunday night which 
will bring cooler temperatures...diminished winds...and increased 
relative humidity values to the state on Monday. A series of weak 
systems will then bring an increased threat of precipitation as well 
as cooler temperatures and higher relative humidity values during the middle of 
next week. 


&& 


Slc watches/warnings/advisories... 
Utah...none. 
Wyoming...none. 
&& 


$$ 


Public.........Kruse 
fire weather...Graham 
aviation.......Young 


For more information from National oceanic and atmospheric administration/S National Weather Service visit... 
http://weather.Gov/saltlakecity (all lower case) 


For frequently asked questions about the area forecast discussion 
visit... 
http://weather.Gov/saltlakecity/general/afd_faqs.Php (all lower case)