This blog provides updated forecasts and comments on current weather or other topics
Monday, July 13, 2009
Amazing Amounts of Lightning
There were nearly 35,000 lightning strikes over the area over the 48h period ending this morning around 7:30 AM. Pretty amazing. The graphic above is from the national lightning network-- a series of sensors that can receive the electromagnetic pulses produced by lightning.
You will notice there is positive and negative lightning strikes indicated. Most cloud to ground strikes are negative, and only a small proportion are positive.