textproduct: Pendleton

KEY MESSAGES

- Light precipitation continues for parts of the Blues and Cascades through tonight. Winds remain mostly light with the possible exception of the La Grande area on Tuesday.

- Dry conditions will resume tomorrow with a more substance pattern due to an amplifying ridge through the week.

- Uncertainty increases heading towards the weekend, with no clear consensus on a synoptic solution.

DISCUSSION

Dense fog from earlier this morning has since mostly dissipated, with lingering showers in the Foothills and Cascades. Precipitation will continue through the night as a shortwave continues making its way through the region. Expecting conditions to continue to dry as we go through the night tonight as a ridge begins to amplify over the PacNW over the next several days. Ridging will bring us more benign weather after a short break burst of moisture today. This will result in high pressure to settle into the area allowing for the stratus deck and fog to re-develop over the next couple of days. More than likely we will have the same areas of concern as before for dense fog in parts of the Basin, Foothills, and Kittitas Valley. Despite under the influence of a ridge and high pressure, there is small potential for some breezy winds in the La Grande area Tuesday morning thru Wednesday afternoon. Pressure gradient differences between BKE and MEH are in the 6-8 mb range, although NBM is not picking up any potential for wind advisory criteria to take place. An edit to La Grande's winds later on if confidence increases for breezier conditions.

The forecast becomes a bit questionable going into Friday onwards, as the ridge begins to weakens and heads east. Clusters on this matter tend to want to lean on a wetter solution, as 68% of members want to lean on a stronger oncoming shortwave with light precipitation by Saturday morning, while that increases to 74% by Sunday morning. Although, most of the members want to bring light precipitation into the area by the weekend, it's still a bit uncertain how the synoptic plays out going into the weekend. Although it is worth noting that any wet solution does not depict significant precipitation amounts, sans the 22% of members that bring moderate to heavy precip into the Cascades over the weekend. All in all it's a system with plenty of time for monitoring for now.

Preliminary Point Temps/PoPs

PDT 33 52 34 50 / 0 10 0 0 ALW 38 54 38 51 / 10 10 10 0 PSC 34 50 33 50 / 0 20 0 0 YKM 31 47 33 48 / 0 30 0 0 HRI 32 51 33 50 / 0 10 0 0 ELN 31 42 33 44 / 10 50 10 0 RDM 26 53 28 58 / 0 0 0 0 LGD 31 50 33 54 / 10 10 0 0 GCD 29 51 31 56 / 0 0 0 0 DLS 37 51 36 52 / 10 20 0 0

PDT WATCHES/WARNINGS/ADVISORIES

WA...None. OR...None.