SOARING FORECAST FOR SEATTLE, WA DATE...4/27/2026...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 | 1.1 | 62 | 111 5000 FT ASL | 2.5 | 65 | 147 6000 FT ASL | 3.2 | 66 | 202 7000 FT ASL | 3.6 | 67 | 262 8000 FT ASL | 4.2 | 68 | 323 9000 FT ASL | 4.7 | 69 | 379 10000 FT ASL | 5.4 | 71 | 431 11000 FT ASL | 6.4 | 73 | 479 12000 FT ASL | 8.2 | 77 | 502 13000 FT ASL | 9.5 | 80 | 546 14000 FT ASL | 10.7 | 82 | 586 15000 FT ASL | 12.0 | 85 | 623 HEIGHT OF THE -3 THERMAL INDEX....2083 TOP OF THE LIFT............3149 SEATTLE, WA MAX TEMPERATURE FORECAST.........60 DEGREES F FIRST USABLE LIFT..........60 DEGREES F HEIGHT OF FIRST USABLE LIFT..........3231 FT ASL GREAT BASIN SOARING INDEX (max lift)...0 FT/MIN UPPER LEVEL WINDS - Height (Feet Above MSL) | Direction | Speed (knots) Morning #### Afternoon 4000 249 3 #### 244 17 5000 325 5 #### 235 10 6000 342 7 #### 228 5 7000 339 9 #### 249 5 8000 334 12 #### 277 6 9000 333 14 #### 301 8 10000 333 16 #### 321 12 11000 338 18 #### 326 16 12000 343 22 #### 327 18 13000 344 25 #### 324 19 14000 346 27 #### 321 20 15000 349 30 #### 320 21 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.