textproduct: Seattle/Tacoma
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
A strong and stable ridge will remain in place through the middle of the week. A cool trough will keep snow levels low moving toward the weekend.
SHORT TERM /TODAY THROUGH TUESDAY/
Strong high pressure remains in place leading to ongoing dry and stable weather conditions. There's patchy shallow fog in the interior this morning with temperatures in the upper 20s and 30s. Expect highs around 50. We'll see similar conditions through Tuesday. 33
LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/
High pressure keeps western WA dry through at least Wednesday (and possibly Thursday). Rain/snow chances increase toward Friday and the weekend as weak disturbances pass through in NW flow. The air mass will be cooler with lower snow levels. Probabilities of lowland snow (1" or greater) are less than 10%. Fraser River outflow winds are possible too (affecting the NW Interior) on Saturday. 33
AVIATION
Latest satellite imagery shows patchy fog forming from PAE northwards, the southern interior, and near the Kitsap Peninsula. Outside of fog, VFR with mostly clear skies early this morning. Terminals with a NE breeze should remain fog free this morning, but there is still a 20-30% chance of low clouds forming resulting in IFR/LIFR cigs after 12Z. VFR conditions for the majority of terminals after 21Z, with the exception of BLI, where conditions may only improve to MVFR. Another chance for IFR/LIFR possible Sunday night, with current probabilities at 20-40% after 06Z. Again, similar to the past days, winds will be a factor on whether it will be fog or low clouds.
KSEA...VFR with clear skies early this morning. Patchy fog may form near the river valleys, but NE winds 6-10 kt should hinder fog development at the terminal. That said, there is a 20% chance of IFR/LIFR cigs due to low clouds between 12Z-18Z. If low clouds do form, they are expected to scatter out in the afternoon, giving way to VFR with mostly clear skies. NE winds 5-7 kt will continue at the terminal this afternoon. Another chance (20-30%) for IFR/LIFR cigs after 09Z.
29
MARINE
High pressure and generally light offshore winds through the middle of the week. 33
HYDROLOGY
No river flooding is expected over the next 7 days.
SEW WATCHES/WARNINGS/ADVISORIES
WA...None. PZ...None.
IMPORTANT This is an independent project and has no affiliation with the National Weather Service or any other agency. Do not rely on this website for emergency or critical information: please visit weather.gov for the most accurate and up-to-date information available.
textproduct.us is built and maintained by Joshua Thayer.