Thursday, May 23, 2013

NSW East Coast Low 23-24 May 2013

An East Coast Low developed overnight off the Mid North Coast of NSW. ALready significant rainfalls have occured with a flood watch for the Bellinger and Nambucca Rivers.


This morning the low is east of Coffs Harbour and expected to move N then NE. The shear profile later today supports a possible tornado mainly in the coastal area. The BoM warning reflects the threat


seqldnensw_vis_latest


for destructive winds, heavy rain and damaging surf

for people in the Northern Rivers and Mid North Coast forecast districts


Issued at 6:43 am EST on Friday 24 May 2013.


RAIN, WIND AND SURF INCREASING ON THE NORTH COAST TODAY.

Weather Situation


A low pressure centre off the Mid North Coast is deepening. Rain, wind and surf will increase along the Mid North Coast and Northern Rivers during Friday, with destructive wind gusts possible from intense periods of rain along the coastal fringe.


Destructive wind gusts of up to 125 km/h are forecast for the Mid North Coast forecast district during Friday, extending to the Northern Rivers forecast district during late afternoon or evening.


Very heavy surf which may lead to localised damage and coastal erosion is forecast for the Mid North Coast forecast district. Beach conditions in these areas could be dangerous and people should stay well away from the surf and surf exposed areas.


Heavy rain which may lead to flash flooding is forecast for the Mid North Coast forecast district and southern parts of the Northern Rivers forecast district.


The State Emergency Service advises that people should:


Move vehicles under cover or away from trees.

Secure or put away loose items around your house, yard and balcony.

Keep clear of fallen power lines.

Don’t drive, ride or walk through flood water.

Keep clear of creeks and storm drains.

If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.


For emergency help in floods and storms, ring your local SES Unit on 132 500.



NSW East Coast Low 23-24 May 2013

Tuesday, May 21, 2013

Tornadoes Texas and Arkansas

ww0207_radarMore tornadoes are expected some significant ones within bowing segments along the extensive squall line that already exists across Arkansas and Texas. The most likely risk for severe weather will be high winds.



Tornadoes Texas and Arkansas

Monday, May 20, 2013

Tornadoes Oklahoma and North Texas 20th May 2013

ww0191_radarThere are some tornadoes expected again today in Oklahoma and Texas. Tornado watches extend into Kansas and Missouri as well as most of Oklahoma and north and central Texas. Reports of damage in Moore along I-40.



Tornadoes Oklahoma and North Texas 20th May 2013

Extreme Storm News image



Tornado from Daniel Shaw in Kansas! Nice! More tornadoes will be posted from Oklahoma



Extreme Storm News image

Sunday, May 19, 2013

Oklahoma City Supercells and tornadoes 20th May 2013

Tornado Oklahoma City radar 19 May 2013


 


503PM CDT EXTREMELY LARGE AND VIOLENT TORNADO JUST NORTHEAST OF OKLAHOMA CITY NEAR CARNEY OKLAHOMA. THIS IS AN EF4/EF5 TORNADO. THE ONLY WAY TO SURVIVE THIS TORNADO IS BELOW GROUND. BASHAM


Oklahoma City Supercells and tornadoes 20th May 2013

Friday, May 17, 2013

Moderate Risk including giant hail 19th May 2013

day2otlk_1730Read the following notes from the SPC for a Moderate Risk in NW Kansas and SW Nebraska:


LATEST SHORT RANGE MODEL GUIDANCE INSISTS STRONG HEATING WILL OCCUR ACROSS SERN CO INTO NWRN TX. THIS SHOULD ALLOW DRYLINE TO MIX TO A POSITION NEAR THE OK BORDER…ARCING NWWD TO A SFC LOW OVER WRN KS BY 19/00Z. WITH SFC DEW POINTS EXPECTED TO RISE WELL INTO THE MID-UPPER 60S EAST OF THE DRYLINE…EXTREME INSTABILITY MAY DEVELOP ALONG A CORRIDOR FROM WRN OK INTO NWRN KS WHERE SBCAPE COULD EXCEED 4000 J/KG. AS TEMPERATURES WARM INTO THE LOWER 90S ACROSS THE TX PANHANDLE INTO SWRN KS INHIBITION WILL BE NEGATED AND DISCRETE SUPERCELL STRUCTURES ARE EXPECTED TO DEVELOP. HAVE INCREASED THE SEVERE PROBS ACROSS PORTIONS OF KS/NEB AS THIS PORTION OF THE CNTRL PLAINS SHOULD EXPERIENCE STRONGER DEEP LAYER SHEAR…POTENTIALLY SUPPORTIVE OF TORNADOES. LATEST 12Z NAM FORECAST SOUNDINGS STRONGLY SUPPORT SUPERCELLS ACROSS THE MDT RISK REGION WITH SBCAPE IN EXCESS OF 4000 J/KG WITH SFC-6KM SHEAR ON THE ORDER OF 40KT. ADDITIONALLY…VERY LARGE HAIL MAY ACCOMPANY ANY SUPERCELLS THAT DEVELOP SATURDAY. LATEST FORECAST HAIL ALGORITHMS SUGGEST HAIL COULD EASILY EXCEED BASEBALL SIZE WITH ORGANIZED ACTIVITY.


Interestingly, the last line indicates the possibility of extremely large hailstones and there is talk of the possibility of long tracked tornadoes if the storms can move further east into moisture.



Moderate Risk including giant hail 19th May 2013

Thursday, May 16, 2013

Supercell Beast Central Oklahoma 26th April 2013



Supercell Beast Central Oklahoma 26th April 2013

Texas tornadoes 15th May 2013



Wedge Tornado near Cleburne, TX – May 15 2013


Today saw some supercells developing with tornado warnings. A wedge tornado caused fatalities south of Dallas after dark as the nocturnal jet really raced in.



Texas tornadoes 15th May 2013

Tuesday, May 14, 2013

Extreme Storm News image

Slow moving thunderstorm observed from near Lismore, NSW this afternoon. Spotted one powerful staccato lightning bolt as the cell cleared to the east on sunset..




Extreme Storm News image

Wednesday, May 8, 2013

Supercell NW Texas Video 15th April 2013

This video depicts the transition of one supercell to another and then the last supercell with beaver tail followed by nice structure with setting sun.



Supercell NW Texas Video 15th April 2013

Thursday, May 2, 2013

Extreme Storm News image


Separation is beginning to occur at this point and a thick beaver tail emerging. Fascinating is the supercell!



Extreme Storm News image

Wednesday, May 1, 2013

Extreme Storm News image

Tail end charlie supercell storm near Grandfield, Oklahoma 17th April




Extreme Storm News image

Latest news image

This is what the supercell then become so I hope it gives some perspective of how it all transformed!




Latest news image

Latest news image

This is what the supercell then become so I hope it gives some perspective of how it all transformed!




Latest news image

My quick image post

The image below is the beginning of the major incredible structured supercell!




My quick image post