-------------- Original message from Mark Kiester <mkeurope@xxxxxxxxxxx>: --------------
National Weather Service Jacksonville
Significant Severe Weather Incident Overnight
April 2, 2009
National Weather Service - Jacksonville conducted a briefing on the high potential for a severe weather incident this afternoon and more so, overnight. They are concerned that conditions are developing into what is likely to be a significant severe weather outbreak.
NWS Jax stated that the conditions forming are very similar to those in the Midwest severe storms: long lived rotating super cells that can produce long lived tornadoes.
The Storm Prediction Center has placed the whole Southeastern United States under a MODERATE RISK for severe weather. This, according to NWS Jax, is very rare. This means we have a 15% chance of tornadic activity (also rare) and a 30% chance of hail and strong winds.
The weather event is likely to be in two phases: thunderstorm development later this morning into afternoon (11 AM - 7 PM) due to daytime heating followed by a lull. Then a squall line is expected to move through the area around 9 PM overnight until 6 AM.
During this time, severe weather is expected. Continued monitoring of the situation is highly recommended.
I would also advise you review the NWS Jax online weather web briefing at:
http://www.srh.noaa.gov/jax/vHLS/Severe_Weather_Today/player.html
Please share this information with your personnel, particularly those agencies with overnight shifts.
THE BOTTOM LINE:
· Alachua County is under Flood Watch until Friday Morning
· Alachua County is under Tornado Watch until 3 PM today (subject to extension)
· We have a moderate risk of severe weather (a rarity in our area)
· 15% of tornadic activity associated with the systems (very high)
· 30% chance of hail and high winds (also high)overnight
· Additional system passing through on Sunday
David A. Donnelly, FPEM, CPM
Emergency Management Chief
Alachua County Public Safety
Please note our new office hours for Alachua County Emergency Management will be Monday – Thursday, 7 AM to 5:30 PM.
Rediscover Hotmail®: Now available on your iPhone or BlackBerry Check it out.
To unsubscribe from GCCMail, please go to http://gccfla.org/. Sign in to the Members Area, scroll down to the "About Me" box, and click the Unsubscribe button in the Email section. There are also links in the headers of this message that you can use if you know how to access them.
�
To unsubscribe from GCCMail, please go to http://gccfla.org/. Sign in to the Members Area, scroll down to the "About Me" box, and click the Unsubscribe button in the Email section. There are also links in the headers of this message that you can use if you know how to access them.