textproduct: Pendleton

KEY MESSAGES

- Warm to hot, dry, and breezy to locally windy conditions will continue through the week. Elevated fire weather concerns to continue in the Columbia Basin and Kittitas Valley.

DISCUSSION

Convection over the Blue Mountains and Wallowa County will taper off and/or exit to the northeast over the next few hours. Farther west, there is a very low (5-10%) chance of high-based showers developing over the Columbia Basin overnight. /86

Temperatures will cool off tomorrow and through the week with an oncoming shortwave allowing high temperatures to drop in the upper 80s to low 90s through much of the lower elevated regions (70-90% chance). Breezy winds will continue with tight pressure gradient formation via shortwaves and oncoming low pressure systems with sustained winds of 10 to 25 mph from the west and northwest. Otherwise, not anticipating precipitation with the lack of moisture and low precipitable water values. Temperatures remain steady in the upper 80s to low 90s through the rest of the week (70-90% chance). /95

AVIATION /06Z TAFS THROUGH 06Z THURSDAY/

VFR conditions are forecast at all sites for the next 24 hours. Breezy winds will persist into the night for wind-prone sites within the Columbia Basin, with more variable winds for central Oregon sites.

There is a very low (5-10%) chance of high-based showers developing overnight across the Columbia Basin, but confidence was too low to include any mention in the 06Z TAFs.

PDT has observed reductions in VSBY down to as low as 5-6SM the past few mornings around sunrise due to smoke from the nearby North Cayuse wildfire. Westerly to southwesterly winds overnight tonight should keep VFR conditions in place (80% confidence) Wednesday morning. /86

FIRE WEATHER

Dry air with breezy winds will persist through the Columbia Basin and Kittitas Valley through at least Friday/Saturday (70-90% chance) allowing elevated fire weather concerns to prevail. Isolated areas across WA690, WA691, and OR691 could reach red flag criteria through the week. /95

Preliminary Point Temps/PoPs

PDT 59 88 55 87 / 0 0 0 0 ALW 65 90 60 88 / 0 0 0 0 PSC 64 93 57 91 / 0 0 0 0 YKM 60 92 57 91 / 0 0 0 0 HRI 63 91 58 90 / 0 0 0 0 ELN 57 82 54 83 / 0 0 0 0 RDM 52 86 48 86 / 0 0 0 0 LGD 59 88 53 87 / 30 0 0 0 GCD 55 90 51 89 / 10 0 0 0 DLS 61 85 58 87 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES

WA...OR...None.