Seguimento América do Norte - 2015

Felipe Freitas

Cumulonimbus
Registo
11 Fev 2012
Mensagens
3,766
Local
Florianópolis, Santa Catarina, Brasil
Nenhum aviso de tornado está mais em vigor neste momento, porém tempestades estão se formando entre Mississippi e Alabama e alguns tornados são possíveis durante a madrugada.

Asfalto arrancado em Ashland, MS.
CW9abxsUQAE-ja1.jpg
 
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luismeteo3

Furacão
Registo
14 Dez 2015
Mensagens
17,112
Local
Fatima (320m)
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
300 AM CST THU DEC 24 2015

.DISCUSSION...

THE PATTERN WE`VE BEEN IN THIS MONTH REMINDS ME OF DECEMBER
1982 WHEN WE ALSO HAD A STRONG EL NINO THAT RESULTED IN TORNADOES
IN THE SOUTHEASTERN U.S. AND ONE HERE IN TENNESSEE. NASHVILLE HAD
ITS WARMEST CHRISTMAS ON RECORD BACK IN 1982. LOOKS LIKE THE
PATTERN WILL CONTINUE WITH VERY WARM TEMPS FOR THIS TIME OF THE
YEAR AS WE GO THROUGH CHRISTMAS AND INTO THE WEEKEND WITH LARGE
SCALE SOUTHERLY FLOW FROM TROPICS AND JET STREAM BEING MUCH
FARTHER NORTH THAN USUAL. RAINFALL TOTALS HERE IN THE MID STATE
OVER THE NEXT SEVEN DAYS COULD RANGE FROM 3 TO 4 INCHES.


CURRENTLY SURFACE FRONT ALONG THE TENNESSEE RIVER WILL MOVE EAST
TODAY AND PULL UP ALONG THE ALABAMA STATE LINE AND UP ALONG THE
PLATEAU DURING THE AFTERNOON. I HAVE KEPT CHANCE POPS RUNNING FAR
EASTERN MIDDLE TENNESSEE AND ALONG THE PLATEAU AND DOWN NEAR
ALABAMA BORDER DURING THE DAY. FRONT WILL RETURN NORTH TONIGHT AS
A WARM FRONT AND THIS WILL INCREASE POPS FOR MID STATE AND HAVE
INCLUDED THUNDER. ON FRIDAY MODELS HAVE INVERTED TROUGH ON FRONTAL
BOUNDARY WITH WIDESPREAD SHOWERS AND THUNDERSTORMS LIKELY. ON
SATURDAY A VERY WARM DAY WITH MID STATE WELL WITHIN WARM SECTOR
AND GOOD SOUTHERLY BREEZES WITH SCATTERED SHOWERS AND THUNDERSTORMS
AS SURFACE BOUNDARY WILL HAVE PUSHED A LITTLE FARTHER NORTHWARD
DUE TO STRONGER SURFACE RIDGING FROM ATLANTIC LESSING RAIN CHANCES
A BIT FOR SATURDAY. A VERY DEEP AND SHARP WESTERN U.S. UPPER
TROUGH WILL DIG DOWN INTO THE NORTHERN PART OF OLD MEXICO WITH
LOW CLOSING OFF AND BECOMING CUT OFF AT LEAST FOR SATURDAY NIGHT
OVER EL PASO. UPPER LOW WORKS OUT INTO NORTH TEXAS ON MONDAY AND
TAKES ON NEGATIVE TILT AS IT SWINGS UP THROUGH ARKANSAS AND LOWER
MISSISSIPPI VALLEY DURING THE DAY MONDAY. 120 KNOT SPEED MAX NOSES
INTO WESTERN AND MIDDLE TENNESSEE MONDAY AFTERNOON AND MONDAY
NIGHT. MUCAPES GO TO 500 J/KG WHILE SURFACE LI`S GO TO -2. THIS IS
STILL A WAYS OUT IN MODELS BUT SOMETHING TO WATCH.
I HAVE SHOWER
AND THUNDERSTORMS CHANCES INCREASING SUNDAY INTO MONDAY AS THIS
SYSTEM APPROACHES.

.CLIMATE...NOTHING OFFICIAL ON TORNADO COUNT FROM LAST EVENINGS
TWISTERS HERE IN MIDDLE TENNESSEE BUT IT LOOKS LIKE POSSIBLY 4
TOUCHED DOWN. 1 IN PERRY COUNTY...2 IN WAYNE COUNTY AND 1 IN
SMITH/DEKALB. THERE WERE 2 FATLITIES IN PERRY COUNTY. ALL IN ALL I
THINK THIS IS PROBABLY THE WORST OUTBREAK OF DECEMBER TORNADOES
IN MORE THAN A HALF A CENTURY IN TERMS OF NUMBER AND FATALITIES.
 
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luismeteo3

Furacão
Registo
14 Dez 2015
Mensagens
17,112
Local
Fatima (320m)
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
529 AM EST THU DEC 24 2015

.Near Term [Through Today]...
Training convection developed and persisted overnight across SE
Alabama in a zone of enhanced low-level convergence and broad
low-level warm advection. Have seen some very heavy rainfall
totals overnight with Flash Flooding in portions of SE Alabama. In
addition, the last few hours have seen increased organization
within the convection, with a number of rotating supercells being
observed on radar. SPC mesoanalysis shows an increasingly
favorable environment for severe storms, with low-level shear
increasing along with an increase in instability. Threat for
isolated tornadoes will continue through mid-morning for SE
Alabama into SW Georgia.
 
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luismeteo3

Furacão
Registo
14 Dez 2015
Mensagens
17,112
Local
Fatima (320m)
Tornado Watch

TORNADO WATCH OUTLINE UPDATE FOR WT 568
NWS STORM PREDICTION CENTER NORMAN OK
510 AM EST THU DEC 24 2015

TORNADO WATCH 568 IS IN EFFECT UNTIL 1000 AM EST FOR THE
FOLLOWING LOCATIONS

GAC021-037-053-061-079-099-145-153-169-171-193-19 7-199-207-215-
225-231-239-243-249-259-261-263-269-273-289-293-3 07-241500-
/O.NEW.KWNS.TO.A.0568.151224T1010Z-151224T1500Z/

GA
. GEORGIA COUNTIES INCLUDED ARE

BIBB CALHOUN CHATTAHOOCHEE
CLAY CRAWFORD EARLY
HARRIS HOUSTON JONES
LAMAR MACON MARION
MERIWETHER MONROE MUSCOGEE
PEACH PIKE QUITMAN
RANDOLPH SCHLEY STEWART
SUMTER TALBOT TAYLOR
TERRELL TWIGGS UPSON
WEBSTER
$$


ATTN...WFO...BMX...FFC...TAE...
 
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Felipe Freitas

Cumulonimbus
Registo
11 Fev 2012
Mensagens
3,766
Local
Florianópolis, Santa Catarina, Brasil
Tempestades são esperadas hoje, para uma pequena área do AR, LA e TN e centro e norte do Mississippi e Alabama.
Duas áreas apresentaram forte rotação durante a manhã, sendo uma no MS e outra no AL, porém até o momento não há relatos que um tornado foi registrado.

Ontem tivemos 4 tornados reportados, sendo três na Califórnia e um na Geórgia.

Tempo severo deve seguir por pelo menos mais três dias, afetando principalmente TX, LA, OK, MS, AR e LA.