MadALwx GraphCast Model
This graph represents the most recent forecast
model I have run.
GraphCast Info
Total Totals Index-commonly used stability index which combines temperatures at different levels and dew point.
| TT Index | Thunderstorm Activity |
| 44 | spotty, usually Weak Thundershowers |
| 46 | spotty, usually Moderate Thundershowers |
| 48 | usually Heavy Thundershowers |
| 50 | usually T-Storms, Hail possible |
| 52 | Severe T-Storms, Tornadoes possible |
| 56 | Severe T-Storms, Tornadoes likely |
WXSIM software uses the data collected by my weather station. I run forecast models at 6am (effective 6-10am, out 4 days), 9am (effective 9a-12p, out 4 days), 12pm (effective 12-3p, out 4 days), 3pm (effective 3p-6p, out 4 days), and 6pm (effective 6p-6a, out 4 days).
