Midmorn : 5500 mega-thaums. Well within normal parameters.
Latemorn : 1000 mega-thaums. Drastic drop in power accompanied by a dimming of light.
Noon: 4200 mega-thaums. Slight increase in power, still low but approaching normal.
Early afternoon: Sudden spike to 7000 mega-thaums. My Prayers to Samani were answered as the Heart of the Sea did not explode and the Heart's power levels quickly returned to 4700 mega-thaums.
Late afternoon: 3000 mega-thaums. Low power accompanied by random fluctuations of colour.