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Nov. 16th-17th Severe Event


Quincy

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SPC stays with enhanced risk 

 

.CNTRL PLAINS THIS EVENING  
 
A PLUME OF RICHER LOW-LEVEL MOISTURE CHARACTERIZED BY MID 50S  
DEWPOINTS CONTINUES TO RAPIDLY ADVECT NWD IMMEDIATELY AHEAD OF  
DISCRETE SUPERCELLS. THE 17/00Z DDC RAOB EXHIBITED A SUBSTANTIAL  
INCREASE IN BOUNDARY LAYER MOISTURE --COMPARED TO THE 17/20Z RAOB--  
AND COUPLED WITH THE LEADING EDGE OF STRONGER MID-LEVEL  
COOLING...MODERATE BUOYANCY AMIDST AN ENLARGING HODOGRAPH WILL  
SUPPORT A THREAT FOR LONGER-LIVED SUPERCELLS CAPABLE OF MEDIUM TO  
LONGER-TRACK SIGNIFICANT TORNADOES DURING THE EVENING HOURS. HAVE  
EXPANDED THE 10 PERCENT SIGNIFICANT TORNADO PROBABILITIES TO ACCOUNT  
FOR THE FAVORABLE DOWNSTREAM ENVIRONMENT FROM NEAR THE NEB/KS BORDER  
SWD INTO SWRN KS. STRONGER DEEP LAYER FORCING FOR ASCENT AND THE  
RAPID EWD PROGRESSION OF THE PACIFIC FRONT INTO THE REGION FROM THE  
W WILL PROMOTE UPSCALE GROWTH OF STORMS INTO SMALL BOWS/LINE  
SEGMENTS WITH THE PRIMARY THREAT WITH THE LATER ACTIVITY BEING ISOLD  
DMGG WINDS.  
 
...W TX AND TX PANHANDLE EWD THROUGH OK AND N-CNTRL/CNTRL TX LATER  
TONIGHT...  
AN INCREASINGLY MOIST AIRMASS IS FORECAST TO SURGE NWD TONIGHT AS A  
SLY LLJ INTENSIFIES WITH THE RICHER MOISTURE FORECAST ALONG AND S OF  
A NWD-MOVING DIFFUSE FRONTAL ZONE FORECAST TO MOVE INTO OK LATER  
TONIGHT. AS THE UPPER TROUGH AND SPEED MAX NOSE INTO THE HIGH  
PLAINS THIS EVENING AND OVERNIGHT...STRENGTHENING WIND FIELDS WILL  
FAVOR A MIXED MODE OF SUPERCELLS AND LINE SEGMENTS THROUGH THE  
EVENING. ATTENDANT THREATS FOR TORNADOES /POSSIBLY STRONG/...HAIL  
AND WIND WILL ACCOMPANY ANY SUPERCELL ACTIVITY. AS THE PACIFIC  
FRONT RAPIDLY MOVES EWD ACROSS THE HIGH PLAINS THIS  
EVENING...ADDITIONAL STORMS WILL DEVELOP AND LIKELY COALESCE INTO A  
BROKEN SQUALL LINE. THE UPSCALE GROWTH INTO A SEVERE-WIND PRODUCING  
SQUALL LINE IS FORECAST. HOWEVER...THE STRONG MOISTURE TRANSPORT  
AND STRENGTHENING LOW-LEVEL SHEAR /EFFECTIVE SRH AROUND 400 M2 PER  
S2/ WILL LEND THE POSSIBILITY FOR A CONTINUED TORNADO THREAT  
PERSISTING INTO THE OVERNIGHT HOURS AS THE BAND OF STORMS MOVES EWD

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THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA...

* UNTIL 815 PM CST

* AT 720 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO
WAS LOCATED OVER ELMWOOD...OR 13 MILES SOUTH OF BEAVER...MOVING
NORTHEAST AT 45 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS 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.

* LOCATIONS IMPACTED INCLUDE...
BEAVER...GATE AND KNOWLES.

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Last time we had anything like this in the Panhandles was probably 5/15/03 or 6/8/95. This is an incredible event unfolding.

 

This could be a case where the SPC was too conservative. I'll wait and see where all the chips fall first, but my first impression this morning was that a 10% tornado area was too low. Many of you on here already expressed the same general sentiment.

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Codman AGAIN.

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CST FOR
SOUTHEASTERN ROBERTS COUNTY...

AT 731 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED OVER CODMAN...OR NEAR MIAMI...MOVING NORTHEAST AT 50 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS 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.

LOCATIONS IMPACTED INCLUDE...
MIAMI...LORA AND CODMAN.

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Codman AGAIN.

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CST FOR

SOUTHEASTERN ROBERTS COUNTY...

AT 731 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS

LOCATED OVER CODMAN...OR NEAR MIAMI...MOVING NORTHEAST AT 50 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS 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.

LOCATIONS IMPACTED INCLUDE...

MIAMI...LORA AND CODMAN.

The Evansville of Texas

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Codman AGAIN.

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CST FOR

SOUTHEASTERN ROBERTS COUNTY...

AT 731 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS

LOCATED OVER CODMAN...OR NEAR MIAMI...MOVING NORTHEAST AT 50 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS 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.

LOCATIONS IMPACTED INCLUDE...

MIAMI...LORA AND CODMAN.

If I'm reading right, Codman is a ghost town, with only a couple people there tops, so it's probably not hitting much.

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SPC stays with enhanced risk 

 

.CNTRL PLAINS THIS EVENING  

 

A PLUME OF RICHER LOW-LEVEL MOISTURE CHARACTERIZED BY MID 50S  

DEWPOINTS CONTINUES TO RAPIDLY ADVECT NWD IMMEDIATELY AHEAD OF  

DISCRETE SUPERCELLS. THE 17/00Z DDC RAOB EXHIBITED A SUBSTANTIAL  

INCREASE IN BOUNDARY LAYER MOISTURE --COMPARED TO THE 17/20Z RAOB--  

AND COUPLED WITH THE LEADING EDGE OF STRONGER MID-LEVEL  

COOLING...MODERATE BUOYANCY AMIDST AN ENLARGING HODOGRAPH WILL  

SUPPORT A THREAT FOR LONGER-LIVED SUPERCELLS CAPABLE OF MEDIUM TO  

LONGER-TRACK SIGNIFICANT TORNADOES DURING THE EVENING HOURS. HAVE  

EXPANDED THE 10 PERCENT SIGNIFICANT TORNADO PROBABILITIES TO ACCOUNT  

FOR THE FAVORABLE DOWNSTREAM ENVIRONMENT FROM NEAR THE NEB/KS BORDER  

SWD INTO SWRN KS. STRONGER DEEP LAYER FORCING FOR ASCENT AND THE  

RAPID EWD PROGRESSION OF THE PACIFIC FRONT INTO THE REGION FROM THE  

W WILL PROMOTE UPSCALE GROWTH OF STORMS INTO SMALL BOWS/LINE  

SEGMENTS WITH THE PRIMARY THREAT WITH THE LATER ACTIVITY BEING ISOLD  

DMGG WINDS.  

 

...W TX AND TX PANHANDLE EWD THROUGH OK AND N-CNTRL/CNTRL TX LATER  

TONIGHT...  

AN INCREASINGLY MOIST AIRMASS IS FORECAST TO SURGE NWD TONIGHT AS A  

SLY LLJ INTENSIFIES WITH THE RICHER MOISTURE FORECAST ALONG AND S OF  

A NWD-MOVING DIFFUSE FRONTAL ZONE FORECAST TO MOVE INTO OK LATER  

TONIGHT. AS THE UPPER TROUGH AND SPEED MAX NOSE INTO THE HIGH  

PLAINS THIS EVENING AND OVERNIGHT...STRENGTHENING WIND FIELDS WILL  

FAVOR A MIXED MODE OF SUPERCELLS AND LINE SEGMENTS THROUGH THE  

EVENING. ATTENDANT THREATS FOR TORNADOES /POSSIBLY STRONG/...HAIL  

AND WIND WILL ACCOMPANY ANY SUPERCELL ACTIVITY. AS THE PACIFIC  

FRONT RAPIDLY MOVES EWD ACROSS THE HIGH PLAINS THIS  

EVENING...ADDITIONAL STORMS WILL DEVELOP AND LIKELY COALESCE INTO A  

BROKEN SQUALL LINE. THE UPSCALE GROWTH INTO A SEVERE-WIND PRODUCING  

SQUALL LINE IS FORECAST. HOWEVER...THE STRONG MOISTURE TRANSPORT  

AND STRENGTHENING LOW-LEVEL SHEAR /EFFECTIVE SRH AROUND 400 M2 PER  

S2/ WILL LEND THE POSSIBILITY FOR A CONTINUED TORNADO THREAT  

PERSISTING INTO THE OVERNIGHT HOURS AS THE BAND OF STORMS MOVES EWD

Not bashing SPC at all, in fact just the opposite as they have been spot on, but I'm surprised there hasn't been an upgrade to a Moderate Risk given the number of TORs and the usage of enhanced wording.  

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Not bashing SPC at all, in fact just the opposite as they have been spot on, but I'm surprised there hasn't been an upgrade to a Moderate Risk given the number of TORs and the usage of enhanced wording.  

I agree, I expected the update by 10am and it didn't happen...then I figured 2pm...didn't happen.  Interesting for sure.  I'm worried the tor threat is going to persist much further east than currently anticipated.

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not a PDS this time

 

may go west of town

 

C211-393-170200-  
/O.CON.KAMA.TO.W.0040.000000T0000Z-151117T0200Z/  
HEMPHILL TX-ROBERTS TX-  
744 PM CST MON NOV 16 2015  
 
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CST FOR  
NORTHWESTERN HEMPHILL AND NORTHEASTERN ROBERTS COUNTIES...  
 
AT 743 PM CST...A CONFIRMED TORNADO WAS LOCATED 7 MILES WEST OF  
CANADIAN...MOVING NORTHEAST AT 35 MPH.  
 
HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL.  
 
SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.  

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Not bashing SPC at all, in fact just the opposite as they have been spot on, but I'm surprised there hasn't been an upgrade to a Moderate Risk given the number of TORs and the usage of enhanced wording.  

 

Probably not going have the coverage in wind and hail reports for a moderate. Maybe you could argue a 15% and hatched tornado threat to bump it up, but looking at the reports map it would have been an exceedingly small area in hindsight.

 

I think if you look at the progression of the outlooks from 06z on, they did a very good job at capturing the changing mesoscale conditions and highlighting the most at risk areas.

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large tornado reported near Miami TX, 10 min ago

 

--

 

741 PM CST MON NOV 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CST FOR
SOUTHEASTERN ROBERTS COUNTY...

 

--

AT 740 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED NEAR MIAMI...MOVING NORTHEAST AT 45 MPH.
 

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ULLETIN - EAS ACTIVATION REQUESTED  
TORNADO WARNING  
NATIONAL WEATHER SERVICE AMARILLO TX  
751 PM CST MON NOV 16 2015  
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A  
 
* TORNADO WARNING FOR...  
LIPSCOMB COUNTY IN THE PANHANDLE OF TEXAS...  
NORTHERN HEMPHILL COUNTY IN THE PANHANDLE OF TEXAS...  
 
* UNTIL 845 PM CST  
 
* AT 750 PM CST...A CONFIRMED TORNADO WAS LOCATED JUST NORTHWEST OF  
CANADIAN... MOVING NORTHEAST AT 35 MPH.  

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