WeatherNation TV Inc. is offering its TV service to Gulf Coast TV stations and cable systems at no charge during Tropical Storm (perhaps turning into Hurricane) Isaac. WHNO-TV 20 and its parent company, LeSea Broadcasting, which recently signed an affiliation agreement with WeatherNation, has decided to accelerate the launch of WeatherNation for its New Orleans viewers on digital Channel 20.2. Cut-ins of WeatherNation will also be available on Channel 20. WeatherNation says it has more than a dozen meteorologists tracking Isaac and its aftermath, and it has meteorologists on the ground in New Orleans and Florida…DIRECTV is launching a dedicated 24/7 "Tropical Storm Isaac Information" channel that will provide live broadcasts from local stations in markets affected by the storm to DIRECTV viewers nationwide. It will air on viewer channels 325 and 349. DIRECTV plans to provide continuous coverage until the storm has diminished in strength…Miss.-based C Spire Wireless is waiving the one-time $10 activation charge and the $4.50 monthly service fee for Wireless Priority Service (WPS), giving eligible emergency response agencies and personnel a higher-priority network connection as Tropical Storm Isaac hits Mississippi and Alabama Gulf Coast. Designated public-health officials and first responders now can dial *272 before the destination phone number on pre-authorized mobile phones to access the next available wireless channel on the C Spire network, thereby increasing the probability of call completion during this storm. The $0.75 per minute fee still stands.