Houston we have a problem
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Houston, We Have A Problem. Houston Area Floods and Southern LA Floods Due to Tropical Storm Allison Keith Stellman And Carolyn Levert. Synoptic Situation. Meteorological Situation for June 8. Low level center northwest of HGX drifting S Daytime heating 250 E-W Jet across MEX

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Houston, We Have A Problem

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Houston, We Have A Problem

Houston Area Floods

and

Southern LA Floods

Due to Tropical Storm Allison

Keith Stellman

And

Carolyn Levert


Synoptic Situation


Meteorological Situation for June 8

  • Low level center northwest of HGX drifting S

  • Daytime heating

  • 250 E-W Jet across MEX

  • Deep WCD (~5200 m)

    • LCH WCD (4800 m)


Role of Upper Level Jet

12Z 0609

(Sat Morn)

00Z 0609

(Fri Eve)

06Z 0609

(Midnight)


PW and Thickness

12z 0609

00z 0609

06z 0609


Houston Rainfall

June 3-9 Rainfall Totals

June 8-9 Rainfall Totals


Pictures

I-45 looking north

I-10


Pictures Cont’


South LA Floods


South LA Floods


Pictures

Amite/Comite Rivers near

Baton Rouge, LA


Deaths in Southeast Texas

  • 22 deaths from June 8-9 flooding:

    • 10 in vehicles

    • 9 on foot

    • 3 electrocutions


Conclusions

  • Sea breeze front initiated convection

  • Gravity wave

  • Outflow from thunderstorms in Louisiana

  • Upper level dynamics

  • Surface low

  • High PWs

  • Thickness values decreasing


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