Squall line tornadoes have a tendency to surprise. They are ephemeral and often evade detection, forming and dying in the interludes between the scans of most radar systems. They are also ...

Most large and violent tornadoes come from supercells. Image Credit: NOAA A “bow echo” is a radar signature of a squall line that “bows out” as winds fall behind the line and ...

These tornadoes often spin up within minutes and sometimes go undetected on radar. They don’t always ... So the next time you hear about a squall line in the forecast, take it seriously.

The series of radar images below from the Albany Doppler radar and Instant Doppler 6 show show the squall line as it progressed across the region through the evening. Albany Doppler radar image at ...

The radar-indicated storm ... which has experienced hours of blustery winds but is still in line for squall line impacts. The city's outage map recorded about 1,543 customers without power ...

The squall line is now past Tallahassee and the severe weather warning has expired, but forecasters have extended a tornado watch until 3 p.m. for the area. The storm has spawned radar indicated ...

The squall line weakens as it moves into the Catskills after 8pm. Pockets of heavy rain could continue to around midnight east of Binghamton. Total rain could range from around a half inch to over ...