Cristobal is now a tropical storm as it threatens the Gulf Coast No Comments Uncategorized Cristobal has strengthened into a tropical storm on Friday, the National Hurricane Center says. Cristobal has strengthened into a tropical storm on Friday, the National Hurricane Center says. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)