Seguimiento general en EEUU

Avatar de Usuario
stormchaserAlberto
Mensajes: 7520
Registrado: Jue Feb 20, 2014 2:34 am
Ubicación: Río Tercero,Córdoba.
Contactar:

Re: Seguimiento general en EEUU

Mensajepor stormchaserAlberto » Vie Dic 08, 2017 11:03 pm

Arrancó el tiempo severo por Florida. Ya salió una discusión a mesoescala.
Imagen
SPOILER - El siguiente texto está oculto. Presioná en la barra para mostrarlo.
Mesoscale Discussion 1791
NWS Storm Prediction Center Norman OK
0716 PM CST Fri Dec 08 2017

Areas affected...central Florida

Concerning...Severe potential...Watch possible

Valid 090116Z - 090345Z

Probability of Watch Issuance...60 percent

SUMMARY...Some increase in severe threat might occur this evening
into the overnight over central Florida. Primary threats will be a
few locally strong to damaging wind gusts and perhaps a couple of
tornadoes. Trends will continue to be monitored for a possible WW.

DISCUSSION...This evening a quasi-stationary front extends from the
Gulf Stream southwest across north central FL to about 70 miles
north of Tampa Bay where it transitions to a cold front. This front
will begin to accelerate southeast as a weak surface low develops
over the Gulf stream. The 00Z evening RAOB data from Tampa and
Melbourne indicate weak lapse rates, but around 1000-1200 J/kg
MLCAPE supported by a very moist boundary layer. Storms continue
developing along NW-SE oriented front with the stronger cells just
offshore and northwest of the Tampa area. Radar trends indicate
modest organization with some bowing segments and marginal supercell
structures including weak mid-level updraft rotation. Despite weak
forcing aloft, a persistent southwesterly low-level jet and
southeast acceleration of the front might contribute to some
increase in intensity this evening or overnight. Additional storms
developing offshore within a pre-frontal convergence band could also
move inland. The kinematic environment will remain favorable for
organized storms. However, given the limiting factors including loss
of daytime heating, weak forcing aloft and a modest thermodynamic
environment, confidence in a more robust severe risk is not
particularly high. Therefore any watch issuance will ultimately
depend on convective trends.

..Dial/Grams.. 12/09/2017

Imagen
SPOILER - El siguiente texto está oculto. Presioná en la barra para mostrarlo.
Mesoscale Discussion 1792
NWS Storm Prediction Center Norman OK
1147 PM CST Fri Dec 08 2017

Areas affected...central through south Florida

Concerning...Severe potential...Watch unlikely

Valid 090547Z - 090645Z

Probability of Watch Issuance...20 percent

SUMMARY...Storms may pose at least a marginal risk for a few locally
strong wind gusts and possibly a brief tornado into the early
morning. At this time, overall threat does not appear sufficient for
a watch, but trends will continue to be monitored.

DISCUSSION...Thunderstorms continue developing along and behind a
southeast-advancing cold front located from near Daytona Beach to
near the Tampa Bay area. The warm sector remains marginally unstable
with weak lapse rates and around 1000 J/kg MLCAPE within an
environment characterized by 35-45 kt effective bulk shear and
modest low-level hodographs. Given the positive orientation of the
upper trough, the deeper forcing for ascent will remain in the post
frontal regime. However, frontal convergence and a weak cap will
likely sustain convection through the early morning hours. Other
storms will persist within pre-frontal warm sector, though overall
tendency has been for this activity to weaken as it moves inland.
Latest HRRR runs indicate some intensification might occur toward
09Z, but other CAMS show an overall weakening trend. Current
thinking is that storms may occasionally develop bowing segments and
marginal supercell structures next several hours with strongest
storms likely in frontal zone. A marginal thermodynamic environment
and poor phasing of the deeper ascent and warm sector will remain
limiting factors for a more robust severe threat. Nevertheless, a
few locally strong to damaging wind gusts and a brief tornado remain
possible in this region through early morning.

..Dial/Grams.. 12/09/2017

Imagen
SPOILER - El siguiente texto está oculto. Presioná en la barra para mostrarlo.
Mesoscale Discussion 1793
NWS Storm Prediction Center Norman OK
0502 AM CST Sat Dec 09 2017

Areas affected...Southern FL

Concerning...Severe potential...Watch unlikely

Valid 091102Z - 091300Z

Probability of Watch Issuance...20 percent

SUMMARY...A few strong wind gusts, and perhaps even a brief tornado,
are possible across southern FL over the next several hours.

DISCUSSION...Regional radar imagery shows a line of storms extending
from western Glades County southwestward to about 40 miles
west-northwest of EYW. Overall convective system is moving slowly
southeastward while storms embedded within the line are moving
northeastward (240 degrees) at 30-35 kt. Storm trends have shown
gradual intensification over the past hour or so with the storms
entering Hendry and Collier counties now showing 30 dBZ reaching
over 30 kft. Additionally, the surface observation at APF recently
measured a gust of 51 kt. Instability is limited (i.e. less than
1000 J/kg of MLCAPE on the latest mesoanalysis) and some convective
inhibition exists but given the increasing forcing for ascent and
the high theta-e airmass, occasionally strong updrafts are still
possible. Strongly sheared environment will also favor rotation
within the strongest storms, supporting the potential for a few
strong wind gusts and perhaps a tornado. Limited spatial extent and
marginal/transient nature of the threat are expected to preclude the
need for a watch.

..Mosier.. 12/09/2017
Dome, dome, dome..The life is a dome

Avatar de Usuario
jcvq
Mensajes: 2513
Registrado: Vie Abr 02, 2010 1:24 pm
Ubicación: Olivos - Pcia de Buenos Aires

Re: Seguimiento general en EEUU

Mensajepor jcvq » Mar Dic 12, 2017 2:47 pm

Nieve en el estado de Missippi.
miss2.JPG

missi1.JPG
Saludos,
Julio

Avatar de Usuario
Stormy
Mensajes: 489
Registrado: Vie Abr 07, 2017 5:19 pm
Ubicación: La Plata

Re: Seguimiento general en EEUU

Mensajepor Stormy » Jue Dic 21, 2017 2:02 pm

Primera entrada de aire polar importante de la temporada para los EE.UU. Miren el derrumbe térmico que le caerá a NY en los próximos días.

Imagen
Última edición por Stormy el Sab Dic 23, 2017 2:05 pm, editado 1 vez en total.
mateix escribió:pamperos que hacen disparar la T...

Avatar de Usuario
Ezequiel15
Mensajes: 9576
Registrado: Lun Ene 23, 2012 4:18 pm
Ubicación: Isidro Casanova (Oeste GBA).
Contactar:

Re: Seguimiento general en EEUU

Mensajepor Ezequiel15 » Sab Dic 23, 2017 12:01 pm

Pero esa información es para el Central Park.
In GFS we don't trust
Los datos que escribo en Clima siempre son de OCBA.

dariusg
Mensajes: 3035
Registrado: Mar Feb 02, 2010 12:45 pm
Ubicación: Paraná, Entre Ríos

Re: Seguimiento general en EEUU

Mensajepor dariusg » Sab Dic 23, 2017 12:55 pm

estare en new york del 17 al 20 de enero, tirenme algo de nieve gracias ja
http://www.wunderground.com/weatherstat ... =IENTRERO8
Twitter:http://www.twitter.com/dardigior
msn:dgiorgio@hotmail.com
instagram: dario.digiorgio
face:dario di giorgio

Avatar de Usuario
Ernest
Mensajes: 8458
Registrado: Vie Jul 17, 2009 10:54 pm
Ubicación: Villa Urquiza, Ciudad de Buenos Aires

Re: Seguimiento general en EEUU

Mensajepor Ernest » Mar Dic 26, 2017 12:54 pm

1,30 metros de nieve en 30 horas en Erie, Pensylvania, a orillas del lago del mismo nombre.
Lake effect a todo trapo.

http://www.weathernationtv.com/news/eri ... emergency/
Did you want to talk about the weather, or were you just making chitchat?

Mi página en facebook: MeteoMundo

Avatar de Usuario
Juan José Frías
Mensajes: 292
Registrado: Sab Abr 19, 2014 8:15 pm
Ubicación: 26°31′00″S 61°10′00″O (Pampa del Infierno)-Chaco, Argentina.

Re: Seguimiento general en EEUU

Mensajepor Juan José Frías » Jue Dic 28, 2017 9:20 pm

Terrible el frío en Estados Unidos; saben si es una entrada de aire polar normal o es algo que sucede pocas veces?; por ejemplo en Memphis, no recuerdo haber visto un pronostico de 4 días completamente bajo cero..

luciano sl sf
Mensajes: 2867
Registrado: Mar Dic 11, 2012 6:29 pm
Ubicación: San Lorenzo, Santa Fé

Re: Seguimiento general en EEUU

Mensajepor luciano sl sf » Vie Dic 29, 2017 11:43 am

Nueva york lleva tres dias por debajo de los 0ºC Y parece que por ocho dias mas no van a poder quebrar esa barrera. Una belleza!
Montreal unos 600 km al norte ya tuvo maximas debajo de los -20ºC y en los proximos dias podrian tener minimas inferiores a -30ºC!
Adjuntos
30-12-2017.png
04-01-2018.png

Avatar de Usuario
mateix
Mensajes: 4713
Registrado: Mié Abr 11, 2012 10:35 am

Re: Seguimiento general en EEUU

Mensajepor mateix » Vie Dic 29, 2017 6:54 pm

xD qué belleza esos tonos violáceos!

16º ahora en Denver, CO, en la antesala de la masa ártica que, al parecer, será de corta duración y mucho intensa que en el este y mid-west.

Avatar de Usuario
stormchaserAlberto
Mensajes: 7520
Registrado: Jue Feb 20, 2014 2:34 am
Ubicación: Río Tercero,Córdoba.
Contactar:

Re: Seguimiento general en EEUU

Mensajepor stormchaserAlberto » Sab Dic 30, 2017 3:20 pm

Se va de mambo esto!
Imagen
Dome, dome, dome..The life is a dome


Volver a “Seguimiento Internacional”

¿Quién está conectado?

Usuarios navegando por este Foro: No hay usuarios registrados visitando el Foro y 1 invitado