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[追击雷暴]美国东南部2.23-24日龙卷风爆发过程,2008年以来最大规模的2月爆发,已确认:EF3:4 EF2:5 EF1:29 EF0:19

楼主#
更多 发布于:2016-02-23 11:10
SPC目前评级已经达到了Moderate,2月比较罕见的过程了。

图片:QQ图片20160223171305.gif


龙卷风评级高达15%,去年一整年都没见过几次(貌似就1次)
[beta于2016-04-01 11:35编辑了帖子]
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三旋共舞
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发布于:2016-02-23 11:24
坐等爆发。


 SPC AC 221715

   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1115 AM CST MON FEB 22 2016

   VALID 231200Z - 241200Z

   ...THERE IS A MDT RISK OF SVR TSTMS FROM PORTIONS OF SERN LA INTO
   SRN PARTS OF MS/AL AND THE FL PANHANDLE...

   ...THERE IS AN ENH RISK OF SVR TSTMS FROM CNTRL LA EWD INTO CNTRL AL
   AND INTO SWRN GA AND THE FL PANHANDLE...

   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS SERN TX EWD INTO
   MS/AL/GA AND THE FL BIG BEND...

   ...THERE IS A MRGL RISK OF SVR TSTMS SURROUNDING THE SLIGHT RISK...

   ...THERE IS A MRGL RISK OF SVR TSTMS FOR PORTIONS OF COASTAL SC...

   ...SUMMARY...
   SEVERE THUNDERSTORMS CAPABLE OF DAMAGING WINDS AND TORNADOES WILL BE
   LIKELY OVER PORTIONS OF THE GULF COAST STATES TUESDAY.  A FEW OF THE
   TORNADOES MAY BE STRONG...ESPECIALLY TUESDAY AFTERNOON AND INTO
   TUESDAY NIGHT.

   ...SE TX EWD ACROSS THE CNTRL GULF COAST AND INTO GA/FL...
   A SPEED MAX OVER THE RIO GRANDE VALLEY WILL ROUND THE BASE OF AN
   INTENSIFYING MID-LEVEL TROUGH/EVOLVING CLOSED LOW AS IT MOVES INTO
   THE CNTRL GULF COAST AFTER DARK.  RAPID INTENSIFICATION OF A SURFACE
   LOW IS EXPECTED FROM SERN TX NEWD INTO NRN MS/WRN TN DURING THE
   PERIOD.  A FRONTAL ZONE LOCATED OVER THE REGION DURING THE DAY 1
   PERIOD IS FORECAST TO ADVANCE NWD FROM THE CNTRL GULF COASTAL REGION
   FARTHER N INTO THE LOWER MS VALLEY.  SHOWER/STORM ACTIVITY WILL
   LIKELY BE ONGOING TUESDAY MORNING ACROSS PORTIONS OF ERN/SERN TX
   WITHIN A STRENGTHENING WAA REGIME.  ALL HAZARDS MAY ACCOMPANY THE
   STRONGER STORMS ACROSS TX BEFORE A COLD FRONT SWEEPS SEWD THROUGH
   THE REGION BY THE EARLY AFTERNOON.  AS WEAK TO MODERATE BUOYANCY
   DEVELOPS INLAND...A MORE SUBSTANTIAL SEVERE RISK WILL DEVELOP DURING
   THE DAY COINCIDENT WITH SURFACE HEATING ACROSS THE LOWER MS VALLEY.

   A MESSY MODE AND MIX OF SUPERCELLS AND LINE SEGMENTS WILL LIKELY
   EVOLVE BOTH NEAR THE EWD-SWEEPING COLD FRONT AND WITH MORE CELLULAR
   ACTIVITY IN CLUSTERS WITHIN ONE OR MORE PRE-FRONTAL CONFLUENCE
   BANDS.  WITH TIME...DMGG WINDS AND THE POTENTIAL FOR TORNADOES WILL
   INCREASE AS SHEAR PROFILES UNDERGO FURTHER STRENGTHENING /EFFECTIVE
   SRH 300-500+ M2 PER S2/.  DESPITE STRENGTHENING FORCING FOR ASCENT
   OWING IN PART TO THE ARRIVAL OF STRONGER MID-LEVEL HEIGHT
   FALLS...VERY STRONG CROSS-BOUNDARY FLOW AND 70+ KT OF MID-LEVEL FLOW
   OVERSPREADING THE WARM SECTOR WILL SUPPORT A CONTINUED RISK FOR
   TORNADIC SUPERCELLS --ALONG WITH THE RISK FOR A COUPLE OF STRONG
   TORNADOES-- AFTER DARK AS THE SEVERE THREAT SHIFTS EWD.

   ...COASTAL SC...
   A MARGINAL SEVERE RISK MAY DEVELOP LATE OVERNIGHT TUESDAY AS
   MOISTURE OVER THE GULF STREAM SPREADS INLAND AND ACTS TO DESTABILIZE
   THE AIR MASS ACROSS THIS REGION.  SHEAR PROFILES WILL SUPPORT STORM
   ORGANIZATION BUT MODEST BUOYANCY WILL TEND TO LIMIT THE OVERALL
   SEVERE THREAT.

   ..SMITH.. 02/22/2016

   CLICK TO GET WUUS02 PTSDY2 PRODUCT

   NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z
   CURRENT UTC TIME: 0336Z (11:36AM), RELOAD THIS PAGE TO UPDATE THE TIME
[三旋共舞于2016-02-23 11:36编辑了帖子]
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海外追风者
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2楼#
发布于:2016-02-24 06:53
来了来了
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发布于:2016-02-24 09:37
有一个PDS
1条评分, 金钱 +1
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    金钱 1
    最好加上报文。
    2016-02-24 10:59
。。。。。。。。
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4楼#
发布于:2016-02-24 11:04

图片:Cb8VHY8WoAA9KC7.jpg


今天这波不是很给力,有点要破产的味道...不过就在2小时之前阿拉巴马州Gulf Shores南部出现了较为强烈的回转,可能出现较强龙卷风。
PS:根据最新消息该回转已经消散= =
[beta于2016-02-24 11:31编辑了帖子]
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5楼#
发布于:2016-02-24 11:14

图片:QQ图片20160224111359.jpg


图片:QQ图片20160224111714.png


刚才NWS Mobile发出数个龙卷风警报且NiceVille西北部已经有龙卷风着陆。
PS:图片来源于@海外追风者
[beta于2016-02-24 11:20编辑了帖子]
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禾愛糖
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6楼#
发布于:2016-02-24 19:03
https://www.youtube.com/watch?v=SkZsyCrrK_c
LA Tornado
看破壞,至少有EF2
從前的我打倒今天的我。

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发布于:2016-02-24 20:02
禾愛糖锛歨ttps://www.youtube.com/watch?v=SkZsyCrrK_c
LA Tornado
看破壞,至少有EF2
鍥炲埌鍘熷笘
这个风毁其实一点也不强,也就是EF1上限-EF2下限的程度
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fxhopexi
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发布于:2016-02-25 01:39
那是最美好的时代,那是最糟糕的时代;那是智慧的年头,那是愚昧的年头;那是信仰的时期,那是怀疑的时期;那是光明的季节,那是黑暗的季节;那是希望的春天,那是失望的冬天;我们拥有一切,我们一无所有; 我们全都在直奔天堂,我们全都在直奔相反的方向------简而言之,那时跟现在非常相象,某些最喧嚣的权威坚持要用形容词的最高级来形容它。说它好,是最高级的;说它不好,也是最高级的。 广告贴: http://bbs.typhoon.gov.cn/read.php?tid=73794&fid=65
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发布于:2016-02-25 10:59
看维基,似乎昨天有一个龙卷风被评级为EF3,是佛州的Ferry-Pass龙卷风,不过NWS的风毁调查还在进行中,不排除有更多EF3出现,另外楼上发的路易斯安娜Plattenville龙卷风灾情挺大的,除了2人死亡之外至少还造成了31人受伤
[beta于2016-02-25 15:17编辑了帖子]
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