Heat ##wave causes fires in Baltimore and Philadelphia . Several cities from Raleigh , North Carolina , to Newark , New Jersey , hit triple digits . Heat advisories are in effect until Wednesday evening in the Northeast . Heinrich said the waterpark is reminding visitors via its loudspeakers to drink fluids -- and making it easier for them to do so . New York sets up cooling towers , warns not to open fire hydrants without spray ##ing .
Heat ##wave causes fires in Baltimore and Philadelphia . Several cities from Raleigh , North Carolina , to Newark , New Jersey , hit triple digits . Heat advisories are in effect until Wednesday evening in the Northeast . New York sets up cooling towers , warns not to open fire hydrants without spray ##ing .