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April 1-3 Severe Threat


1900hurricane

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1 minute ago, Jim Martin said:

mcd0404.gif

Mesoscale Discussion 0404
   NWS Storm Prediction Center Norman OK
   0206 PM CDT Sun Apr 02 2017

   Areas affected...Portions of far east Texas into central LA

   Concerning...Tornado Watch 110...

   Valid 021906Z - 022000Z

   The severe weather threat for Tornado Watch 110 continues.

   SUMMARY...The risk for significant tornadoes is increasing across
   Particularly Dangerous Situation Tornado Watch 110.

   DISCUSSION...Echo tops in association with supercell clusters and
   quasi-linear convective segments containing embedded supercells have
   exhibited notable increasing trends per radar imagery. This activity
   is intensifying within a warm advection plume preceding a midlevel
   shortwave trough spreading across Texas. Pressure falls have been
   increasing in magnitude within the open warm sector from parts of
   the lower Sabine Valley eastward through central LA, south of a warm
   front analyzed from south of Shreveport to north of Alexandria LA.
   This suggests that increasing deep ascent will continue to encourage
   convective sustenance/intensification. The VAD wind profile at POE
   indicates a substantially curved hodograph in the lowest 3 km above
   ground, with around 400 m2/s2 of 0-1-km SRH. Rotating updrafts will
   remain likely as convection spreads eastward/east-northeastward
   across the region. The risk for significant tornadoes is increasing,
   along with damaging winds and severe hail.

   ..Cohen.. 04/02/2017


   ATTN...WFO...JAN...LCH...SHV...
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SEVERE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
212 PM CDT SUN APR 2 2017  
  
LAC079-021945-  
/O.CON.KLCH.TO.W.0030.000000T0000Z-170402T1945Z/  
RAPIDES LA-  
212 PM CDT SUN APR 2 2017  
   
..TORNADO EMERGENCY FOR ALEXANDRIA  
  
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR NORTH  
CENTRAL RAPIDES PARISH...  
          
AT 211 PM CDT, A CONFIRMED LARGE AND DESTRUCTIVE TORNADO WAS LOCATED  
OVER ALEXANDRIA, MOVING NORTH AT 30 MPH.  
  
TORNADO EMERGENCY FOR ALEXANDRIA. THIS IS A  
PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!  
  
HAZARD...DEADLY TORNADO.   
  
SOURCE...RADAR CONFIRMED TORNADO.   
  
IMPACT...YOU ARE IN A LIFE-THREATENING SITUATION. FLYING DEBRIS MAY   
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES   
         WILL BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES,   
         BUSINESSES, AND VEHICLES IS LIKELY AND COMPLETE DESTRUCTION   
         IS POSSIBLE.   

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9 minutes ago, huronicane said:

Any live stream coming out of Alexandria? Watching one Facebook live stream and it's pretty awful...talking primarily about the hail and hardly focused on the tornado threat...

http://www.weathernationtv.com/video/  Brett Adair is near this stream, they say the are working to get local pics. 

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Friend of mine was on the Alexandria storm.  At least one large tornado was on the ground when he shot it but the video looks like there might have been another in the back as well.  There were two couplets visible on radar at the time.  Going to be a lot of damage in that town.

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1 minute ago, geddyweather said:

New circulation has split off from the old one and is located near the Ball, LA area. It appears the amateur radio stations in the Alexandria area are down. It also may be difficult to get reports as storms continue to train over the area.

.NEW.KSHV.TO.W.0042.170402T1929Z-170402T2015Z/  
  
BULLETIN - EAS ACTIVATION REQUESTED  
TORNADO WARNING  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
229 PM CDT SUN APR 2 2017  
  
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A  
  
* TORNADO WARNING FOR...  
  SOUTHEASTERN GRANT PARISH IN NORTH CENTRAL LOUISIANA...  
  CENTRAL LA SALLE PARISH IN NORTH CENTRAL LOUISIANA...  
  
* UNTIL 315 PM CDT  
  
* AT 228 PM CDT, A TORNADO WAS REPORTED OVER BALL, OR NEAR PINEVILLE,  
  MOVING NORTHEAST AT 35 MPH.  
  
  HAZARD...TORNADO AND QUARTER SIZE HAIL.   
  
  SOURCE...RADAR INDICATED ROTATION.   
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Ended up being a total bust here around BCS.  I was on a couple of cells with rotation, but they never looked very strong.  A notable abscense of lightning and strong wind here.  I did not see any hail, but there are reports of some moderately large hail in the area.  When the OFB surged in front of the southern storms, I called it and came back home.

Paramters were definitely weaker here than advertised, but they still look incredible in Lousiana.

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5 minutes ago, janetjanet998 said:

.NEW.KSHV.TO.W.0042.170402T1929Z-170402T2015Z/  
  
BULLETIN - EAS ACTIVATION REQUESTED  
TORNADO WARNING  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
229 PM CDT SUN APR 2 2017  
  
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A  
  
* TORNADO WARNING FOR...  
  SOUTHEASTERN GRANT PARISH IN NORTH CENTRAL LOUISIANA...  
  CENTRAL LA SALLE PARISH IN NORTH CENTRAL LOUISIANA...  
  
* UNTIL 315 PM CDT  
  
* AT 228 PM CDT, A TORNADO WAS REPORTED OVER BALL, OR NEAR PINEVILLE,  
  MOVING NORTHEAST AT 35 MPH.  
  
  HAZARD...TORNADO AND QUARTER SIZE HAIL.   
  
  SOURCE...RADAR INDICATED ROTATION.   

Rotation looks very impressive now east of Ball LA 

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