Tuesday, April 26, 2011

The Worst Yet to Come??? w/UPDATES

Wow! What a night for following severe weather. While I was busy focusing on a rotating wall cloud near Little Rock AR on LIVE streaming video, a monster tornado was tearing through Vilonia AR north-northeast of Little Rock. Unspeakable damage. Hard to describe other than, as one person said, "The town is gone." Why, there were reports that roads had been scoured by the tornado.

More severe weather expected in the same vicinity. A HIGH risk for severe weather exists for today down that way. More strong tornadoes expected. I'll be preparing a list of reports from those storms later.

What about our weather? I'll tell ya, at my location, the rainfall amounts have really slackened off. I have only recorded a little over 4" since Friday while some nearby locations have reported an excess of 6-8". I have had no severe weather, although winds were quite gusty early this morning that were non-t'storm related.

Also, notice the river levels above. I chose to update the amount at 11am because there has been an apparent miniscule drop on the Upper Gauge at McAlpine from 30.17ft to 30.15ft. Actually, the levels here have been fluctuating up/down in small amounts but appears to have stabilized overall.

Stay right here as I check for upcoming severe weather chances and possible flooding rains for later today thru late Wednesday.
----------------------------
7:30pm
Possible tornado betw Hartford and Beaver Dam
SR Helicity values are supporting tornadic cells across the region, including Louisville. Especially south and east of Louisville.

6:50pm
Possible tornado touchdown with injuries in Hopkins county in west KY
Earlier TVS south of Pine Bluff AR produced golf ball size hail and larger across Star City and Gould but no tornado.

6:10pm
Storm reports:
Webster county Wall cloud with Funnel; nickel to quarter size hail
Caldwell county Funnel close to touching ground near Princeton; up to golf ball size hail

5:53pm
New Tornado Watch includes Louisville. Instability increasing.

5:37pm
I'm detecting a Tornado Vortex Signature south of Pine Bluff AR

5:15pm
In western KY, reports of hail 0.88" in Benton and Tri City. Golf ball size hail along KY/TN border in Weakley county, TN.

5:05pm
Earlier, I was talking about the SR Helicity values approaching dangerous levels right now.
I found this latest NWS product Forecast Discussion...that pertains primarily for tomorrow.

SEVERE WEATHER IS A THREAT FOR WEDNESDAY AFTERNOON AND EVENING. AS
MID-LEVEL WINDS INCREASE AND THE NOSE OF THE UPPER JET MOVES INTO
SOUTHERN ILLINOIS WEDNESDAY AFTERNOON...STORM RELATIVE
HELICITIES...A MEASURE OF THE AMOUNT WIND SHEAR IN THEATMOSPHERE...WILL BECOME EXCEPTIONALLY HIGH. ONE LIMITING FACTOR FOR
SEVERE WEATHER TOMORROW WILL BE A POSSIBLE LACK OF INSTABILITY DUE
TO WIDESPREAD PRECIPITATION AND CLOUDINESS. HOWEVER...SHOULD ANY
DISCRETE STORMS DEVELOP...THEY WILL BE CAPABLE OF PRODUCING
TORNADOES. ONE OR MORE LINES OF STORMS OR BOWING SEGMENTS MAY ALSO
DEVELOP...AND MAY PRODUCE WIDESPREAD DAMAGING WINDS.

4:45pm
This just in...The dam at Lake Jericho in Henry county HAS BEEN DEEMED SAFE, and nearby residents that had evacuated can return home.

4:25pm
I am concerned about the SR Helicity values exceeding dangerous levels in southwest and southern KY. This is indicative of a potentially dangerous setup with tornadoes expected from Ft Campbell to Bowling Green.
Tornado Watches do reach up into western KY now.
4:10pm
Tornado Watches are going up for many areas hit hard yesterday with severe weather. Storms are beginning to fire and rapidly intensify. I've been looking at the numbers from the SPC. LI's at -11 in some places; SR Helicity values reaching dangerous levels in NE Texas. On the heels of a strong swly jet some 60-80 kts, tornadoes will be breaking out in many locations in AR, OK, and northeast TX within a couple of hours.

3:20pm
Power outages in Arkansas - Entergy reporting about 60,000 customers without power including some 11,500 in Little Rock.
At least 7 fatalities, including 4 from Vilonia.

2:40pm
This Nicholas county road in Kentucky breaks apart due to flooding rains and has caused instability in the ground below it. The road is closed until repairs are made; this main bus route will have to find an alternative route until then.



1:20pm
Latest on Poplar Bluff MO levee breach.
http://www.kentucky.com/2011/04/26/1719954/rain-swollen-rivers-threaten-midwest.html
Wow. Some 15" rain has fallen over the last 4 days there.
Here is a CoCoRaHS 24-hour report from Butler county in Poplar Bluff

Still awaiting engineering inspection report of Lake Jericho near Sulfer KY in Henry county.

MS

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