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HDOB 35
Winds picking up to the NE
Moderator: S2k Moderators
Ptarmigan wrote:rnmm wrote:Are we at our 28 year average yet?!?!?!?!
Jerry came in 1989. There was a 9 year gap with October hurricanes between 1886 and 1895. Than a 43 year gap between 1895 to 1938. Following that, 11 year gap between 1938 and 1949. Between October 1949 and October 1989, you got a 40 year gap.
In regards to Lee, the models are not looking good for Texas.
psyclone wrote:you guys in baton rouge look to be riding the line at this point. there could be a very tight precip gradient in your area that would be virtually impossible to nail down beforehand. kinda of a nowcasting situation at this point. one well placed convective burst could easily yield several inches of rain yet such events are impossible to forecast well in advance. i guess an analog would be northern snowstorm where you go from a couple of inches to a foot in a 40 mile span. tough to get a handle on it until the flakes are flying.
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MESOSCALE DISCUSSION 2100
NWS STORM PREDICTION CENTER NORMAN OK
1132 PM CDT FRI SEP 02 2011
AREAS AFFECTED...SOUTHERN LA AND EXTREME SOUTHERN MS/AL
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 030432Z - 030630Z
NORTH-NORTHEAST PERIPHERAL BANDS OF TROPICAL STORM LEE MAY POSE AN
ISOLATED/MAINLY BRIEF TORNADO THREAT ACROSS SOUTHERN LA COASTAL
AREAS /ESPECIALLY SOUTHEAST LA/ AND PERHAPS EXTREME SOUTHERN MS/AL
THROUGH THE EARLY MORNING HOURS OF SATURDAY. WHILE ANY THREAT MAY
REMAIN VERY ISOLATED...A TORNADO WATCH MAY NEED TO BE CONSIDERED.
AS PER LATEST NHC GUIDANCE...TROPICAL STORM LEE IS EXPECTED TO
CONTINUE A SLOW GENERAL NORTHWARD DRIFT TOWARD THE LA COAST AS IT
GRADUALLY INTENSIFIES THROUGH EARLY SATURDAY. THE NORTH-NORTHEAST
PERIPHERAL WIND FIELD HAS SHOWN A GRADUAL STRENGTHENING INLAND
THROUGH THE EVENING...AS PER THE 01Z OBSERVED RAOB FROM SLIDELL LA
AND TRENDS OF LIX/MOB WSR-88D VWP DATA...WITH SOME ADDITIONAL
STRENGTHENING ANTICIPATED OVERNIGHT AS TROPICAL STORM LEE MOVES A
BIT CLOSER/MODESTLY INTENSIFIES.
IT SEEMS PROBABLE THAT WEAK BUOYANCY/LOW-LEVEL LAPSE RATES INLAND
AMID CLOUD COVER/PRECIPITATION WILL TEND TO LIMIT THE
CERTAINTY/MAGNITUDE OF A TORNADO THREAT...ALTHOUGH
LIGHTNING-PRODUCING CONVECTIVE BANDS CONTINUE TO PERSIST LATE THIS
EVENING SOUTH OF THE HOUMA VICINITY. NONETHELESS...ADJUSTMENTS TO
THE AFOREMENTIONED 01Z LIX RAOB AND LATEST LIX/MOB WSR-88D VWP DATA
IS INDICATIVE OF 0-1 KM SRH ON THE ORDER OF 150-225 M2/S2...GIVEN
THE EAST-SOUTHEASTERLY COMPONENT OF THE LOW-LEVEL FLOW IN VICINITY
OF A NEAR-SHORE CONFLUENCE AXIS. WITH A VERY MOIST AIRMASS /MIDDLE
70S F SURFACE DEWPOINTS/...THE DEGREE OF SHEAR/SRH WILL PROVIDE THE
POTENTIAL FOR EMBEDDED LOW-TOPPED SUPERCELLS CAPABLE OF ISOLATED
TORNADOES.
PTrackerLA wrote:The latest GFS shows us still receiving 5"-10" of rain. Lee looks to sit directly over Lafayette for some bit of time, we'll see. About to have the heaviest squalls yet move in from the east, a solid mass of yellow and orange radar returns.
http://radar.weather.gov/radar.php?rid= ... 1&loop=yes
PTrackerLA wrote:The latest GFS shows us still receiving 5"-10" of rain. Lee looks to sit directly over Lafayette for some bit of time, we'll see. About to have the heaviest squalls yet move in from the east, a solid mass of yellow and orange radar returns.
http://radar.weather.gov/radar.php?rid= ... 1&loop=yes
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