SOARING FORECAST FOR SEATTLE, WA DATE...4/29/2025...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 | -0.5 | 60 | 106 5000 FT ASL | 1.6 | 64 | 126 6000 FT ASL | 3.2 | 67 | 159 7000 FT ASL | 4.6 | 70 | 196 8000 FT ASL | 6.3 | 73 | 229 9000 FT ASL | 8.2 | 77 | 253 10000 FT ASL | 10.0 | 81 | 279 11000 FT ASL | 11.1 | 83 | 319 12000 FT ASL | 12.1 | 86 | 363 13000 FT ASL | 13.3 | 89 | 407 14000 FT ASL | 14.8 | 92 | 439 15000 FT ASL | 16.5 | 96 | 461 HEIGHT OF THE -3 THERMAL INDEX....3067 TOP OF THE LIFT............4297 SEATTLE, WA MAX TEMPERATURE FORECAST.........61 DEGREES F FIRST USABLE LIFT..........56 DEGREES F HEIGHT OF FIRST USABLE LIFT..........3231 FT ASL GREAT BASIN SOARING INDEX (max lift)...110 FT/MIN UPPER LEVEL WINDS - Height (Feet Above MSL) | Direction | Speed (knots) Morning #### Afternoon 4000 265 17 #### 239 10 5000 271 16 #### 241 10 6000 274 18 #### 276 8 7000 272 22 #### 303 15 8000 273 21 #### 314 19 9000 274 22 #### 313 22 10000 279 21 #### 311 24 11000 292 23 #### 310 27 12000 300 24 #### 308 29 13000 298 26 #### 308 32 14000 291 27 #### 310 34 15000 280 28 #### 312 35 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.