The tornado sirens just sounded in Madison, and we can't tell why. The radar shows a spot of red north/northeast of Madison, maybe clipping Madison's north side, but TV, radio and weather radio show no warnings. Edit: now there's a special weather statement online and on TV indicating a strong thunderstorm near Sun Prairie moving northeast. "Funnel clouds, pea sized hail, winds greater than 30mph and brief heavy downpours are possible with this storm." Siren worthy, but not warning worthy. Hmm.