Argentina Severe Weather Outbreak Possible in Next 18hrs< cal. from 18:00 GMT

METD Int
Argentina

concerning for severe weather

The GFS forecast shows that a massive mid range trough is just off the
shore of Chile.
This trough is a good which can create many things
The first feature will be it will not be a zonal flow that is the
trough digs in argentina-chile border.The jet at present is situated
behind it and will move to areas near Catamarca,Ar and interestingly
the pressure is expected to be 990mb only. in next 18hrs
THIS MEANS IT IS INTENSE LOW PRESSURE SYSTEM.
The jet will be near catamarca and as there will be availability of
CAPE chance of severe weather outbreak increases.Also Humidity will be
present which helps in strengthining of thunderstorm. I don't have any
update on HELICITY as There are no models within my range showing
them.
This system will cause heavy rains as well in there areas. Tornado
chances might be there as everything is good.....

another powerful system is digging in slowly in the outlook of RIDGE
for N.hemisphere but is actually a trough as i always say.
This is to the very south of argentina near puerto natales,CHILE.
This is weaker than the one mentioned above as the central pressure
would be 996mb
But this is unfavourable as the position would be in lower 40s. The
temperatures there are low and dewpoint is less. so we can just expect
rains and no thunderstorm

So METD now aims to catch the action from the system of pressure
gradient 990mb which knocks very soon in argentina-chile border.
It will be exciting to see what a system of 990mb does as last day a
system of 996mb created supercells!!!!

Stay tuned for updates only on METD Int

METD
Akshay

METD STARTS TRACKING ARGENTINA WEATHER

METD Hq,

 

With the already onset of tornadoes with hails in southern hemisphere, TVN's Reed Timmer my teacher in this field has set out to Argentina to catch tornadoes. Likewise METD also desires to catch the science of tornadoes in southern hemisphere on internet.

SO we have decided that We will track argentinas weather and inform you about Severe WEather outbreaks.

Argentina is famous for tornadoes as We have Tornado alley in usa.This is a peak time for tornadoes like we have april-may in USA.

 

AS on the prelimenary track day,WE have discovered that Argentina today was subjected to Low pressure.

The pressure over North-eastern and south western argentina was low to 998mb but it was higher in north of the country to 1007mb apx.

There has been clouds since last few hours and they have warm core<thunderstorm core> but now it looks it has lost it.

Though the GFS forecasting for severe weather in argentina looks good we dont have someone to tell the RUC model and also to provide datas like twisterdata.com does. I have found some links which can help us to track. But still would be challenging.......

 

encl- CLouds over argentina and pressure of 996mb in southern argentina

 

For akshay's gyaan readers I am sorry I am unable to give time but you can see the discussions on facebook.com/astrophysics

we have opened a Facebook METD weather fan page face

 

http://www.facebook.com/pages/METD-WEATHER/375172700693?ref=mf#/pages/METD-WEATHER/375172700693

 

you can get to see all actions right here

 

I WILL BE BACK ON AKSHAY'S GYAAN WITH SOME NEW IDEA VERY SOON

TILL THEN HAPPY HOLIDAYS AND HAPPY NEW YEAR

Akshay

Blizzard warning once more in Northern USA after Getting to Oklahoma and Tornado watches

METD WEATHER,USA
Akshay Deoras,LEAD Weather investigator

Yesterday there was a severe weather outbreak in USA as whole.
First there were record breaking tornadoes in southern side in
Lousiana. A total of 25 tornadoes happened in 2 days and they were
quite destructive.
At present 300mb forecast shows intense jets of 100 knots which will
progress as the day progresses to the south. This system will settle
over Dakotas and will bring heavy snow, Also Heavy winds 35-45mph and
low visibility will add to blizzard conditions and NWS has already
issued BLIZZARD WARNING.

snow depth model which has been newly introduced on twisterdata.com (c) TVN
shows that within 24 hours more than 24" of snow is likely to be
accumulated in parts of WIsconsin and will be 8-15" in south dakota.

BLizzard warnings have been issued for North-south
Dakota,Nebraska,North-east Kansas.

At the same time, NWS has issued tornado watches for Florida,South
carolina,Georgia.
Tornado watches are no. 810,811.
Tornadoes will happen very soon probably in next 5 hours at the warned areas.
For Blizzard in Oklahoma,
The blizzard produced impressive snow totals of 4 to 10 inches from
Amarillo to Wichita Falls to northwest Dallas to 12 to 15 inches
across southwest to central Oklahoma.
These snow totals smashed existing records for northwest Texas to
Oklahoma City with a white Christmas now guaranteed.
The heavy snow will be accompanied by winds gusting in excess of 50
miles per hour creating whiteout conditions throughout the Central and
Northern Plains through the day today.
Freezing rain will result starting this morning in western North
Carolina and southwest Virginia expanding northward into the interior
portions of the Northeast today.
As the day moves forward, rain will invade the eastern portions of the
Mid-Atlantic reaching Southeast New York by this afternoon.
The rain is expected to come down moderately to heavy at times
combining with melting snow to produce localized flooding problems
from Washington D.C. to New York city tonight into Saturday.
Saturday, the change from wintry mix to freezing rain to rain will
continue northward across the remainder of Upstate New York and New
England.

Latest report from Silver spring is showing 0 deg celcius and freezing
rains are due there from 10 am EST also there w'd be winds upto 35mph
there.
Keep tracking METD for details

DECEMBER IS DEFINATELY HISTORIC FOR WEATHER

CAN BE ANOTHER HISTORIC DAY IN USA WITH REFRENCE TO WEATHER.TORNADO CHANCES NOW MODERATE

METD WEATHER

ALERT FOR SEVERE STORMS CAPABLE OF PRODUCING TORNADOES

AT PRESENT SPC HAS SHIFTED TO MODERATE RISK FOR SEVERE STORMS.

THIS LOW PRESSURE SYSTEM INDEED IS A BIG ONE AS THE AIR PRESSURE CENTERED OVER NORTH-EAST OKLAHOMA IS OVER 996mb. 

Intense low pressure jets more than 50 knot jet are present. Actually a lot of moisture is being provided by this system from the atlantic which is actually helping the thunderstorm to split into supercells. 

SPC has issued Mesoscale discussion and watches for tornadoes and it has to be a historical day. 

AS the day progresses, this system will move in the missourie valley and a shifting warmfront will help in some more severe outbreak. the chance of Hails also is there and might be as large as 1 inch golf ball..The EHI but natural also good and positioned over coast. So there has to be a coastal flood warning

This system will deactivate only when the cold front arrives that is expected by evening

Keep tracking us and for another 12 hours turn to spc.noaa.gov as it is time for shut down for METD due to a night here.

A TORNADO WATCH ALSO HAS BEEN ISSUED

#807 UNTIL 100 PM CST

THE NWS STORM PREDICTION CENTER 

HAS ISSUED A    TORNADO WATCH

 FOR PORTIONS OF             

   SMALL PART OF SOUTH-CENTRAL

 AND SOUTHEASTERN ARKANSAS  

         LOUISIANA EXCEPT FAR

 NORTHWEST AND FAR SOUTHEAST 

PORTIONS           PORTIONS OF 

WESTERN MISSISSIPPI          

 PORTIONS OF EAST TEXAS     

      COASTAL WATERS      

  EFFECTIVE THIS THURSDAY

 MORNING AND AFTERNOON FROM

 450 AM UNTIL    100 PM CST. 

       TORNADOES...HAIL TO 1

 INCH IN DIAMETER...THUNDERSTORM

 WIND GUSTS    TO 75 MPH...AND 

DANGEROUS LIGHTNING ARE POSSIBLE

 IN THESE AREAS.

METD 

AKSHAY

Tornadoes happening in southern section and heavy snows and blizzards up in the north

Tornadoes dominating in the south

A severe weather alert is still on after the southern USA was
dominated by more than dozen of tornado. METD has missed little in
this forecasting as we were dealing with some local problems. The RUC
forecast showed a drastic change in The CAPE and EHI values which
facilated over 12 tornadoes in Texas east,Lousiana.
The day has begun again and so shall the action. The RADAR is showing
that thunderstorm in lousiana is splitting into supercells and they
are surely capable of producing tornadoes.
Tornado warnings are in effect.
It is a squall line system

The countries which might be affected from hails,high winds and tornadoes are
catahoula,franklin,west
caroll,concordia,ashley,richland,tensas,morehouse,chicot.

These warnings are upto 1 pm.A warm front and cold front together are
helping in developement of tornadoes

Keep up with ur tornado preparedness things and keep tracking
spc.noaa.gov for details

HEAVY SNOW STORM AND THUNDERSTORM IN USA IN 48 HRS

 METD WEATHER STATION 

ALERT DEPT ALERT FOR WINTER STORM AND THUNDERSTORM A powerful low pressure system is moving in the country from the north western side. This is bringing snowfall on its way. At present The RUC forecast for 300mb shows trough is digging in from Washington state,There is another one digging in directly from south-western states. SO infact, we w'd be having a joint effect of this two troughs over central and southern areas. At first this trough will enter and mix with the southern trough. There will be low level jets of 50 knots over south dakota which will bring rains in the form of heavy snowfall. By the time the snow ends on

Version:1.0 StartHTML:0000000168 EndHTML:0000003251 StartFragment:0000000471 EndFragment:0000003234

Christmas Day, significant accumulations will have occurred. Present indications are that 7 to 10 inches of total snow will fall across far western Nebraska, with 8 to 14 inches in the Imperial, North Platte, and Valentine areas. In the Broken Bow and O'Neill areas, 12 to 18 inches are expected. Significant blowing and drifting snow is also expected Thursday into Christmas as a result of strong winds. The combination of wind and snow in the Plains could lead to blizzard or near blizzard conditions in parts of Kansas and Nebraska, possibly into other areas as well SO travellers during christmas must set out early as if they want to travel west, Then These snowy conditions will prevent them from doing so. THUNDERSTORM IN SOUTH The Powerful low level system with 120 knot jet will bring heavy rains in the south. Actually there will be a thunderstorm which might be capable of producing isolated thunderstorms.However the chance of Tornadoes will be less as the CAPE is limited for tornadoes. though there would be extreme wind shears..The EHI are also down. The low level jets of 50 knot will bring heavy rains in southeast texas and southwest lousiana also in pensacola . NWS has issued Flood Warnings across southern states like lousiana,southeast texas.Some thunderstorms are possible in the Desert Southwest. NWS has also issued winter storm warning for Nebraska areas. MERRY X'MAS TO ALL METD READERS.

Stay tuned for Updates  

METD 

Akshay

CURRENT PHOTOS OF WINTER STORM IN WASHINGTON DC AREA 2009

BLIZZARD HAPPENING NEAR WASHINGTON DC

BLIZZARD CONDITIONS HAVE NOW MOVED TO WASHINGTON AND SURROUNDING AREAS

AS HAD EXPECTED BY METD, THE LOW PRESSURE IN AREAS OF DC AND NEARBY AREAS.THIS IS CAUSING BLIZZARD CONDITIONS IN AREAS FROM LEXINGTON PARK,FREDERICKSBURG,ANNAPOLIS,BELAIR. 

THE PRESENT REPORT FROM WASHINGTON DC SAYS THAT THERE IS HEAVY SNOW AND TEMPERATURE IS -3.8 C.WIND IS ABOUT 16.1 KM/HR 

THIS IS INDEED A HISTORIC WINTER STORM

METD

AKSHAY

MASSIVE WINTER STORM ACROSS EAST USA THIS WEEKEND. HEAVY SNOW ACCUMULATION POSSIBLE

METD ALERT DEPT
ALERT FOR HEAVY SNOW

The 300 mb forecast shows that there will be a heavy activity that
will begin this midnight Eastern time in usa. The trough with 100
knots+ value is currently setting over eastern states of usa like
maryland,virginia,New york, and the surrounding states. This is
expected to bring heavy rains which will convert to snow as the
temperatures are below the freezing point. The 100 knot trough will
activate the system. As Day <saturday> falls another powerful system
will move north which will have 140 knots jets that will hit right
around saturday evening to afternoon hours. This will be the real
show. The 72 accumulated precipitaion from this hour shows that it
would be about 5-7" accumulation of snow in areas of
Maryland,Baltimore,Washington,Newyork etc. bUT NATURAL,LOW LEVEL JETS
OF 60 KNOTTS WILL BE THERE AT THE WARNED AREAS.These incredible
precipitation totals can be attributed to the NAM predicting the
coastal storm to "bomb out", or drop 12 mb in 12 hours, with the
minimum central pressure dipping to around 975 mb by Saturday night!
The resulting intense pressure gradient on the backside of the storm
will cause blizzard conditions with gusts to near 50 mph.THE COASTAL
AREAS IN THESE WARNED AREAS WILL HAVE HEAVY RAINS AS THERE IS WARM AIR
FROM COASTAL AREAS.

NWS has released Winter warnings for these areas activating from
Friday Midnight to sunday morning. I am sure this can be a historic
one and people will enjoy a lot.

my relatives in silver spring,MD will get a turn to catch this winter
storm as well and I am expecting some good phtotos from here as well.

For my relatives here is a warning

SNOW ACTION STARTS FRIDAY NIGHT AND WILL BE HEAVY ON 16:00 HRS ON
SATURDAY WITH SNOW ACCUMULATING TO 5"+

And here is spc's take on it
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-
FREDERICK VA-CLARKE-LOUDOUN-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-
FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-WESTERN MINERAL-EASTERN MINERAL-
INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK...
WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...
WALDORF...ST MARYS CITY...FROSTBURG...CUMBERLAND...WINCHESTER...
LEESBURG...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...
FALLS CHURCH...MARTINSBURG...CHARLES TOWN...EMORYVILLE...
HARTMANSVILLE...KEYSER...FORT ASHBY
405 AM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.
* PRECIP TYPE...SNOW.

* ACCUMULATIONS...HEAVY SNOW WITH ACCUMULATIONS OF 5 TO 10 INCHES
THROUGH SUNSET SATURDAY. LOCALLY HIGHER AMOUNTS POSSIBLE...
MAINLY IN OR NEAR SOUTHERN MARYLAND. ADDITIONAL ACCUMULATIONS
EXPECTED SATURDAY NIGHT.

* TIMING...SNOW WILL BEGIN LATE FRIDAY NIGHT AND WILL CONTINUE
THROUGH SUNDAY MORNING.

* TEMPERATURES...UPPER 20S TO LOWER 30S THROUGH THE EVENT IN THE
BALTIMORE WASHINGTON METROPOLITAN AREA...MID TO UPPER 20S ACROSS
WESTERN MARYLAND.

* WINDS...10 TO 20 MPH THROUGH THE EVENT...WITH GUSTS OF 25 TO
30 MPH SATURDAY AND SUNDAY.

STAY TUNED FOR UPDATES-
AKSHAY DEORAS

Blizzard Warning across Michigan uptil 4PM EST

This winter storm has been a great one and probably a Historic one. It is the first winter storm that is being chased on METD. There was Blizzard warning across most of areas in north USA day before yesterday . Now Michigan has been targeted by snow. There is a blizzard warning across Grand rapids,Michigan. Currently it is -8.2 Deg Celcius in Grand Rapids.the visibility is almost 0.8 Kilometers. It is snow freezing rain. The blizzard warning is upto 4pm EST.

Recently there has been a fresh heavy snow as METD had said in Northern India. 

METD

Akshay

Tornado warnings in EASTERN MISSUORIE,WESTERN AND NORTH CENTRAL ALBAMA

METD ALERT DEPT

The powerful trough which has dug into the southern plains might bring tornadoes in parts like eastern missuorie and N central and western Albama

There is a little but sufficient energy present in the atmosphere to activate the process of supercell formation from the squall lines of thunderstorms. SPC calls it " GREATEST SEVERE THREAT" Warm fornt is lifting slowly towards AND EXTENDS FROM SRN THROUGH W-CNTRL AL INTO N-CNTRL MS WHERE IT INTERSECTS A COLD FRONT. A 70+ Kt low level jet has advected in this area. There are changing shears of winds. Despite of cold in the upper areas,this region is pretty active with dewpoints ranging 60F.Instability is 500joules as had mentioned above.STORMS WILL CONTINUE DEVELOPING AND TRAIN NEWD WITHIN ZONE OF ASCENT ASSOCIATED WITH PRE-FRONTAL CONFLUENCE BANDS AND THE LOW LEVEL JET. Moisture is available in this area. ALREADY SQUALLS ARE SPLITTING INTO ISOLATED THUNDERSTORMS WHICH ARE GETTING CONVERTED TO SUPERCELLS.SPC HAS RELEASED A MESO. DISCUSSION ON IT

AREAS AFFECTED...ERN MS THROUGH WRN AND N CNTRL AL..

TORNADO OUTBREAK IS MOSTLY AS THE EHI'S ARE AT VALUE OF 4-5

FLASH FLOOD WARNINGS HAVE BEEN ISSUED AS WELL

METD

AKSHAY

HEAVY SNOWFALL AND RAINS IN NORTHERN INDIA

THE CURRENT 300MB FORECAST SHOWING A THUNDERSTORM CLOUDS APPROACHING TOWARDS NORTHERN INDIA


A powerful layer of jet stream is approaching northern india with 140mph. there is a strong possibility of convection of air. there will be rainy clouds due to this phenomena from the Mediterranean sea. there will be heavy snow in the higher altitudes region including parts of himachal pradesh like district Kyelong etc. There will be rains in the lower altitude regions like Jammu.

the ground conditions are favourable for snowfall
This jet stream will reach in about 24 hours. So we can expect rains more than 10mm and snows equally. There will be snowaccmulation which will increase the snow level in valley areas. there might be a 3-5" snowfall in parts of central J&K.


So stay alerted and tune for updates

METD
Akshay

BLIZZARD WARNING ACROSS COLORADO

METD ALERT DEPT

WARNING FOR BLIZZARD IN COLORADO

A STORM SYSTEM IS SWEEPING CURRENTLY ACROSS COLORADO. THERE ARE
ALREADY LOW TEMPERATURES IN AREAS OF COLORADO LIKE GRAND
JUNCTION,DURANGO,BLANDING ETC.

Clouds will be on the increase this late night at the time when a
powerful storm structure will progress from the west. this will cause
rainfall in the form of snow in the northeast of Utah mountains and
northern and central parts of Colorado. the expected snowfall in this
areas would be about 6-12". THE NEXT 24HR 300MB SYSTEM shows that
another powerful storm system would sweep across Many parts of usa
including colorado. The 120 knot value is good for causing heavy
widespread snowfall in southern colorado creating blizzard conditions.
A BLIZZARD IS A CONDITION WHEN THERE IS INTERACTION OF HIGH PRESSURE
SYSTEM WITH A LOW PRESSURE SYSTEM IN THE PRESENCE OF LOW TEMP,STORNG
WINDS.

Stay tuned for updates

METD
AKSHAY

ACTION AFTER A BREAK

METD ALERT DEPT

USA

THE SOUTHERN STORM IS IMPACTING STATES LIKE ALBAMA SOUTH,FLORIDA PANHANDLE,SOUTHWEST GEORGIA

SYNOPSIS

A SOUTHERN STORM IS MOVING TOWARDS SOUTH EAST. DAMAGING HAILS,HIGH WINDS AND TORNADOES ARE POSSIBLE IN AREAS MENTIONED ABOVE..

MORE THREAT IS TO THE COAST IN BETWEEN PENSACOLA AND PANAMA CITY.

THE 850MB SHOWS MANY LOW LEVEL JETS IN THESE AREAS WHICH WOULD BE FOLLOWED BY A LOW PRESSURE AREA.

THE CONDITIONS OF MOISTURE AND INSTABILITY IS PERFECT IN THIS REGION DUE TO COASTAL WINDS

THERE ARE LARGE CHANGING SHEARS WITH DIRECTION<HELICITY> IN THIS AREA. THE EHI 0-1KM SOARS TO 8 NEAR PANAMA CITY

AS THE EVENING GOES AHEAD, THE CHANCE OF RAINS INCREASES IN THESE AREAS

HERES' SPC UPDATE

   EFFECTIVE THIS WEDNESDAY MORNING FROM 310 AM UNTIL 1000 AM CST.THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

   MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH OF MOBILE    ALABAMA TO 35 MILES NORTHEAST OF TALLAHASSEE FLORIDA.  FOR A    COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE    UPDATE (WOUS64 KWNS WOU7).

---

http://windows.microsoft.com/shop Find the right PC for you.