Jump to content
  • Member Statistics

    17,588
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

End of July 2012 obs/discussion


Ian

Recommended Posts

  • Replies 1.1k
  • Created
  • Last Reply

MESOSCALE DISCUSSION 1606

NWS STORM PREDICTION CENTER NORMAN OK

0208 PM CDT THU JUL 26 2012

AREAS AFFECTED...PORTIONS VA...ERN WV...DC...MD...DE.

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 261908Z - 262115Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...TSTM POTENTIAL IS INCREASING OVER THIS AREA...AS AIR MASS

CONTINUES TO DESTABILIZE SE OF WW 524. BEING NEAR SRN PERIPHERY OF

FAVORABLE MIDLEVEL WINDS AND DEEP SHEAR...POTENTIAL EXISTS FOR

SUFFICIENT TSTM ORGANIZATION TO WARRANT WW...AND CONVECTIVE TRENDS

WILL BE MONITORED ACCORDINGLY. DAMAGING GUSTS ARE PRIMARY

CONCERN...AND MRGL SVR HAIL IS POSSIBLE.

DISCUSSION...18Z SFC MESOANALYSIS SHOWED QUASISTATIONARY LEE TROUGH

WITH WEAK CONFLUENCE NEAR FDK-LYH-MTV LINE. FARTHER

E...BETTER-DEFINED CONFLUENCE BAND WAS EVIDENT BETWEEN RDU-RIC-DCA

THEN NEWD OVER HARFORD COUNTY MD. AIR MASS BETWEEN THESE BOUNDARIES

HAS HEATED QUITE STRONGLY...WITH SFC TEMPS MID-UPPER 90S AND DEW

POINTS UPPER 60S TO 70S F CONTRIBUTING TO MLCAPE 3000-4500 J/KG.

THIS IS DERIVED FROM MODIFIED 12Z AND 18Z RAOBS AND FCST

SOUNDINGS...DISCOUNTING SITES WITH ANOMALOUSLY HIGH/80S F SFC DEW

POINTS. 18Z IAD RAOB INDICATED WEAK CINH STILL REMAINING...AS WELL

AS STABLE LAYER BETWEEN 500-650 MB...EACH OF WHICH MAY BE MITIGATING

DEEP CONVECTIVE DEVELOPMENT SO FAR. HOWEVER...CONTINUED

HEATING/DESTABILIZATION SHOULD SUPPORT TSTM INITIATION/GROWTH DURING

NEXT FEW HOURS INVOF EITHER BOUNDARY. VIS IMAGERY ACCORDINGLY

DEPICTS PATCHES OF DEEPENING CU/TCU BETWEEN I-95 CORRIDOR AND BLUE

RIDGE...ESPECIALLY NEAR RIC. VWP AND OBSERVED/FCST SOUNDINGS

SUGGEST 25-35 KT EFFECTIVE SHEAR MAGNITUDES IN SUPPORT OF ORGANIZED

MULTICELLULAR POTENTIAL.

..EDWARDS/HART.. 07/26/2012

Link to comment
Share on other sites

So...no storms for us? ;)

Convective temperature is used when there is no mechanical lift, there's plenty of mechanical lift coming down from PA if it can make it down here.. plus, that's the cap strength in one place, it may be weaker or stronger in other areas.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...