Friday, April 26, 2013

April 25-28, 2011 Tornado Outbreak Part 2

April 26 was the first high risk day of the outbreak. This was the 20z day 1 convective outlook, followed by the probabilities.
20110426 2000 UTC Day 1 Outlook Graphic
Tornado
20110426 2000 UTC Day 1 Tornado Probabilities Graphic
Wind
20110426 2000 UTC Day 1 Damaging Wind Probabilities Graphic
Hail
20110426 2000 UTC Day 1 Large Hail Probabilities Graphic
Obviously, there was great concern that day, and as the urgency of the situation began to increase, several watches were issued, including three PDS Tornado Watches.
WW0215 Probability
WW0217 Radar
WW0222 Radar
Tornado reports stretched from Texas up to New York on that day, with the strongest tornado being an EF3 that caused major damage to Fort Campbell, Kentucky.

Note the time that the third PDS Tornado Watch expires. This is where the first round of storms across Mississippi and Alabama on the 27th began. The squall line, as well as the rest of the 27th will be discussed later today and tomorrow.

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