textproduct: Pendleton

KEY MESSAGES

- Diurnal breezes through Saturday.

- Warmer and dry through the weekend and into next week.

- Fire weather concerns emerge over the holiday weekend.

DISCUSSION

The upper trough that had been over the western states will slowly weaken today. The flow is expected to become more westerly Friday into Saturday and southwesterly by Sunday.

With this change in flow, temperatures are expected to warm and will be pushing 90 in the lower elevations by Saturday and well into the 90s by Monday. After much of the last week seeing below normal temperatures, by early next week temperatures will average 5 to 10 degrees above normal. By Monday and Tuesday, HeatRisk will be Moderate across much of the Columbia Basin, Yakima and Kittitas Valleys and portions of the Columbia Gorge.

In the southwest flow on Monday, there will be some low (<20 percent) shower and even lower thunderstorm chances, mainly over the central and eastern mountains of Oregon.

Otherwise, the week looks relatively dry.

Withe the warming temperatures, humidity values will decrease into the teens and with the diurnal breezes, especially on Saturday there will be enhanced fire weather concerns, especially for the Columbia Basin and Kittitas Valley. Will need to monitor these areas for any headlines moving forward.

AVIATION /12Z TAFS THROUGH 12Z FRIDAY/

VFR conditions with winds generally 10 kts or less are expected at all TAF sites, except DLS where afternoon and early evening gusts to around 25 kts are anticipated once again.

Preliminary Point Temps/PoPs

PDT 80 52 84 53 / 0 0 0 0 ALW 81 57 85 59 / 0 0 0 0 PSC 83 54 88 56 / 0 0 0 0 YKM 82 54 87 55 / 0 0 0 0 HRI 82 54 87 57 / 0 0 0 0 ELN 77 50 82 52 / 0 0 0 0 RDM 79 43 85 48 / 0 0 0 0 LGD 80 50 83 52 / 0 0 0 0 GCD 82 48 86 50 / 0 0 0 0 DLS 79 56 85 57 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES

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