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Tempo Severo EUA - 2020


Felipe F
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Hoje tivemos quase uma centena de reports de ventos fortes na Costa Leste (NY, CT, PA, NJ, MD)

Fortes tempestades já começaram no TX e deve seguir para OK nas próximas horas.

O maior risco vai ser granizo para ambos os estados.

 

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Amanhã o risco de tornados fortes segue aumentando.

O maior risco vai ser entre OKC e Dallas.

 

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MD 443 graphic

SUMMARY...Threat for all severe hazards, including a strong tornado,
   has increased across southeast TX.

   DISCUSSION...Ongoing supercell entering Walker and Houston Counties
   has shown trends towards more organization and deviant right motion
   over the past 15 minutes. This trend suggest maturation into a
   supercell is near-complete or complete. Given the lack of storms and
   the moist and unstable air mass downstream, the overall environment
   appears favorable for continue storm persistence and perhaps
   additional strengthening. Recent mesoanalysis estimate STP of 6-7
   exists in this region. All severe hazards, including a strong
   tornado, are possible with this supercell and any additional mature
   development over the region.
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BASED ON RECENT RADAR AND ENVIRONMENTAL DATA, A STRONG TO INTENSE   TORNADO WITH POTENTIAL PEAK WINDS OF 130 TO 165 MPH (EF2-EF3) IS   LIKELY ONGOING.     DISCUSSION...DISCUSSION   RECENT RADAR SIGNATURES FROM KGRK AS OF 2250Z REVEAL AN INTENSE   SUPERCELL CHARACTERIZED BY A 0.5 DEGREE ROTATIONAL VELOCITY OF AT   LEAST 70 KT. A TORNADIC DEBRIS SIGNATURE HAS ALSO BEEN NOTED ON   RECENT RADAR SCANS. THESE SIGNATURES ARE OCCURRING IN AN ENVIRONMENT   CHARACTERIZED BY STP BETWEEN 5 AND 6. PREVIOUS SIGNATURES WITHIN   SIMILAR ENVIRONMENTS PRODUCED TORNADO-DAMAGE-ESTIMATED WIND SPEEDS   FROM 130 TO 165 MPH AND CONFIDENCE IS HIGH FOR A STRONG TO INTENSE   TORNADO. A LONGER-TRACK TORNADO IS ONGOING AND MAY CONTINUE BASED ON   THE ROTATIONAL VELOCITY DURATION AND THE STORM MOVING WITHIN A   FAVORABLE DOWNSTREAM ENVIRONMENT.

 

 

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