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April 3-4, 2012-SVR WX POTENTIAL
04-05-2012, 02:31 AM
Post: #11
April 3-4, 2012-SVR WX POTENTIAL
[Image: ww0141_radar.gif]

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04-05-2012, 07:59 AM
Post: #12
April 3-4, 2012-SVR WX POTENTIAL
http://www.severestudios.com/cgi-bin/pla...bb&uid=496

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04-05-2012, 08:00 AM
Post: #13
April 3-4, 2012-SVR WX POTENTIAL
[Image: ww0142_radar.gif]

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04-05-2012, 09:24 AM
Post: #14
April 3-4, 2012-SVR WX POTENTIAL
Brett Adair appears to be in position in Central Bama:

http://content.wdtinc.com/popout/index.p...26&O=10216


Phelps is leaving Lafayette:

http://content.wdtinc.com/popout/index.p...26&O=10237

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04-06-2012, 06:24 AM
Post: #15
April 3-4, 2012-SVR WX POTENTIAL
3-D view of Texas severe weather from the TRMM Precipitation Radar satellite.

[Image: 636820main1_tornadic_tstms_4apr12_0133_u...ar-673.jpg]

Quote:TRMM's Precipitation Radar (PR) data gathered above northeastern Texas on April 3, 8:33 p.m. CDT were used to provide a 3-D view of the intensity and vertical distribution of precipitation. PR data showed that some of the powerful storms within this area were pushing up to heights above about 8 miles (13 km). (Credit: NASA/SSAI, Hal Pierce)

http://www.nasa.gov/topics/earth/feature...20405.html

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04-06-2012, 07:10 PM
Post: #16
April 3-4, 2012-SVR WX POTENTIAL
dkmac Wrote:3-D view of Texas severe weather from the TRMM Precipitation Radar satellite.

[Image: 636820main1_tornadic_tstms_4apr12_0133_u...ar-673.jpg]



http://www.nasa.gov/topics/earth/feature...20405.html

Looks like Sam Rayburn & Toledo Bend Lakes should be at their normal stage levels after this.

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04-23-2012, 06:51 AM (This post was last modified: 04-23-2012 06:51 AM by Joe-Nathan.)
Post: #17
April 3-4, 2012-SVR WX POTENTIAL
A NWS REPORT FROM SVR T-STORM NEAR BUNKIE, LA:

http://www.srh.noaa.gov/lch/?n=e040512

[COLOR="#B22222"]Bunkie Supercell
[/COLOR]

April 5, 2012

Quote: During the early morning hours of April 5, 2012, an upper level low pressure area was centered over Central Oklahoma where it had been meandering for the previous couple of days. Extending South from this low was a weak cold front which was draped across Southeast Texas and had been producing light showers and thunderstorms during the evening of April 4. As the front pushed slowly to the East, it collided with a swath of very unstable air located across Avoyelles, Vernon and Rapides parishes. Just before midnight, a few thunderstorm cells began to develop across this area. By 12:20 AM on the morning of the 5th, only a single, although intensifying, thunderstorm cell remained.

At 12:50 AM, the thunderstorm began to exhibit a classic supercellular appearance on radar. National Weather Service meteorologists issued a severe thunderstorm warning at 12:55 AM for Western Avoyelles, North Central Evangeline, and Southeastern Rapides parishes. The warning emphasized that the storm would produce damaging hail capable of extensive property damage and serious injury.

[Image: BunkieSupercell.jpg]
KPOE radar reflectivity near Bunkie, LA at 1:04 AM April 5, 2012

The first report of hail (marble size, two miles Northeast of Bunkie) was received by the NWS at 1:11 AM through its Facebook page. Moments later, the Bunkie Fire Department reported Golf ball size hail in the city of Bunkie. Several more reports were received over the next 20 minutes with the size of reported hail getting larger. Eventually, reports of Baseball to Softball size hail, which had damaged numerous windows, vehicles and homes were coming in from the Bunkie police department as well as the general public.

[Image: VIL.jpg]
Vertically Integrated Liquid (VIL) from KPOE at 1:04 AM April 5, 2012. White areas indicate possible hail development.

[Image: CandaceBain.jpg]
Photo Courtesy: KALB and Candace Bain

As the storm continued to the East, hail reports were received from the towns of Evergreen (Golf ball, 1:18 AM) and Cottonport (Golf ball 1:24 AM).

At 1:40 AM, the supercell thunderstorm began to display an appendage on radar indicative of possible tornado development. NWS meteorologists issued a tornado warning for the storm at 1:44 AM for South Central Avoyelles and North Central St Landry parishes.

At 1:55 AM, after coordination with local area offices, the Storm Prediction Center issued Tornado Watch 141 for Vernon, Rapides, Avoyelles, Allen, Evangeline and St Landry parishes. This watch would later be extended to the south to cover the Atchafalaya basin and the coast.

Additional thunderstorms developed across St Mary parish around 3:30 AM on the morning of the 5th which warranted an additional Severe Thunderstorm Warning at 3:37 AM. Several reports of quarter size hail were received across Morgan City, Patterson and Amelia, but as the airmass was slightly more stable across southern portions of the area, the hail was not able to develop to the size seen across Avoyelles and Rapides parishes. Eventually this activity pushed east into Southeastern Louisiana where it dissipated.

A NWS Storm Survey team was dispatched to determine the official cause of the damage being reported. After investigation, it was determined that despite the issuance of both a tornado watch and warning, no tornado actually touched down. All reported damage was caused by a combination of very large hail and strong straight line winds. The summary of the team's findings can be found below...

THE REST AT:
http://www.srh.noaa.gov/lch/?n=e040512

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