Archive for April, 2011

TWISTEX Field Operations for April 28, 2011

Thursday, April 28th, 2011

Currently in a southern suburb of Birmingham, AL Yesterday: Historic tornado outbreak in Dixie Alley yesterday with a reported 162 tornadoes (as of SPC this morning).  All of the severe weather parameters were textbook perfect, with sickle-shaped hodographs everywhere in Mississippi and Alabama, and with incredible low level ...

TWISTEX Field Operations for April 26, 2011

Tuesday, April 26th, 2011

Currently in Palestine, Texas April 24: Witnessed three tornadoes near Baird, TX.  One of those tornadoes was a large multi-vortex tornado along the forward flank of the supercell. Original target two days ago was around the Abilene, TX area. Forward-flank tornadoes are very difficult to deploy instruments on, as ...

TWISTEX Field Operations for April 23, 2011

Tuesday, April 26th, 2011

Currently on the road from St. Louis, MO Yesterday, April 22: We had an original target of a few miles north of the St. Louis, MO area, where a warm front was lifting northward providing excellent low level (0-1 km) shear.  Model data suggested that storms would fire along ...

Start of TWISTEX 2011

Tuesday, April 26th, 2011

Currently in Norman, Oklahoma Our program objectives are described in detail on our website: www.twistex.org The following items will be new for this year: * X-band RADAR provided by EWR located in St. Louis, MO. * Revised tornado in-situ instrument with additional wind speed measurement capability and acoustics monitoring.  A new wind speed ...