SOARING FORECAST FOR SEATTLE, WA DATE...4/26/2026...12Z (Based on model generated sounding profile) THERMAL INDEX (TI), TEMPERATURE of CONVECTION (TOC) and POTENTIAL LIFT at each level HEIGHT | TI | TOC | POTENTIAL LIFT 4000 FT ASL | -1.4 | 63 | 168 5000 FT ASL | -0.3 | 65 | 215 6000 FT ASL | 0.2 | 66 | 273 7000 FT ASL | 0.5 | 67 | 336 8000 FT ASL | 0.6 | 67 | 410 9000 FT ASL | 0.6 | 67 | 480 10000 FT ASL | 0.8 | 68 | 546 11000 FT ASL | 1.5 | 69 | 600 12000 FT ASL | 2.9 | 72 | 637 13000 FT ASL | 4.5 | 75 | 674 14000 FT ASL | 6.0 | 79 | 708 15000 FT ASL | 7.2 | 81 | 745 HEIGHT OF THE -3 THERMAL INDEX....2575 TOP OF THE LIFT............5610 SEATTLE, WA MAX TEMPERATURE FORECAST.........66 DEGREES F FIRST USABLE LIFT..........61 DEGREES F HEIGHT OF FIRST USABLE LIFT..........3231 FT ASL GREAT BASIN SOARING INDEX (max lift)...249 FT/MIN UPPER LEVEL WINDS - Height (Feet Above MSL) | Direction | Speed (knots) Morning #### Afternoon 4000 016 12 #### 273 4 5000 012 9 #### 269 5 6000 017 9 #### 273 6 7000 023 9 #### 303 6 8000 035 9 #### 317 8 9000 048 11 #### 322 11 10000 055 12 #### 321 15 11000 046 14 #### 322 20 12000 033 16 #### 324 22 13000 022 18 #### 328 22 14000 014 20 #### 336 23 15000 009 23 #### 346 24 IT IS EMPHASIZED...THIS EXPERIMENTAL SOARING FORECAST INFORMATION IS NOT CONTINUOUSLY MONITORED. THIS INFORMATION IS VALID ONLY FOR THE INDICATED SITE AREA AND FREQUENTLY WILL NOT APPLY TO OTHER AREAS IN THE REGION.