Author Archives: AWXVTEC FEED
Severe weather analysis 430 pm
Supercell storms continue in NE MS/NW AL this afternoon in warm, unstable air mass. Normally, storms in a summerlike air mass would not generally rotate, but these storms have two factors allowing some rotation. 1. A leftover mesoscale circulation, 50-100 … Continue reading
Surprise Storms
A round of isolated thunderstorms has fired up over East Alabama early this morning, and although they are heavy, they are not severe. Storms like this can surprise us sometimes when we have relatively dry air in place down here … Continue reading
More items from wave Monday
In the long post on the Monday morning gravity wave, I mentioned that the UAH MIPS wind profiler observed the downward and upward motions that caused the rapid changes in surface pressure and therefore the strong winds. Thanks to Dustin … Continue reading
Gravity wave Monday morning
(Raw Doppler velocity image at 104 am CDT from NEXRAD. Areas of green scattered in the bright red indicate “folding”, or velocities greater than the radar can interpret (>57 knots, 65 mph). The gravity wave/wake low that moved across much of … Continue reading
Storm Chase – Huntsville
My boss Kevin Knupp and I were in a meeting, but we couldn’t keep our eyes off the radar as a supercell formed over Limestone County, and developed a nice hook echo NW of Huntsville. We finally jumped up, threw … Continue reading
Friday storm chase video
Click here to watch Part 1 Click here to watch Part 2 I took my Dad storm chasing on Friday…it was his first tornado chase (his only other storm chase was to Hurricane Ike’s outer rain bands and near the … Continue reading
Gravity wave warning
A gravity wave is causing a rapid drop in pressure at the back edge of the rain area over Alabama tonight. The winds will blow into the low pressure, from the east or northeast to the west, and may gust … Continue reading
Storm chase
So far, we followed a supercell from Moulton to Cotaco, about 40 miles, saw a wall cloud with 2 possible funnels near Moulton, then we got ahead of the wall cloud and had to join some people in an underground … Continue reading
1105 am weather update
Update to previous post. SPC is also planning to issue a tornado watch for much of north Alabama soon. UAH Mobile Doppler radar will be out today, and I will be going chasing with Sid Coleman. Headed to Moulton, AL … Continue reading
Tornado/hail threat today
The data are starting to look more favorable for an outbreak of severe weather today, including very large hail and isolated tornadoes, especially over the northern half of Alabama. A cold front extends from a low pressure area in SE … Continue reading
