May 18 (1)
| No cloud cover (transparent) |
| Cloud Cover |
May 19 (2)
| No cloud cover (transparent) |
| Cloud Cover |
May 20 (3)
| No cloud cover (transparent) |
| Cloud Cover |
Baseline (April) - May 20 (5)
| Minimal power change |
| Minor power change |
| Medium power change |
| High power change |
| Very significant power loss |
Baseline (April) - May 18 (6)
| Minimal power change |
| Minor power change |
| Medium power change |
| High power change |
| Very significant power loss |
May 20 - May 19 (8)
| Minimal power change |
| Minor power change |
| Medium power change |
| High power change |
| Very significant power loss |
May 19 - May 18 (9)
| Minimal power change |
| Minor power change |
| Medium power change |
| High power change |
| Very significant power loss |
Tracts in Houston MSA (Geometry from USCB, Stats from FEMA NRI) (10)
| 0.020000 - 22.190001 |
| 22.190002 - 45.410000 |
| 45.410001 - 66.790001 |
| 66.790002 - 84.680000 |
| 84.680001 - 99.970001 |
|