First official Tropical Wave of the season

#1 Postby **drezee** » Mon May 21, 2007 5:48 am

TROPICAL WAVE...THE FIRST TRACKED ON OUR SFC MAP IN 2007...IS
LOCATED ALONG 21W/22W S OF 10N MOVING W ABOUT 15 KT. THIS WAVE
APPEARS TO HAVE MOVED OFF THE AFRICAN COAST AROUND 06Z ON SAT
BASED ON SATELLITE AND SFC DATA OVER THE PAST FEW DAYS. THE WAVE
PLACEMENT WAS BASED ON LOW TO MID LEVEL CURVATURE SEEN ON NIGHT
CHANNEL VIS IMAGES WHICH ALSO SEEMED TO MESH WELL WITH A SHIP
AND BUOY REPORT SURROUNDING THE FEATURE. THE BUOY...CALL SIGN
31006...HAS BEEN PARTICULARLY HELPFUL SHOWING THE WIND VEER MORE
TOWARD THE E POSSIBLY INDICATING THE APPROACH OF THE WAVE AXIS.
HOWEVER...EARLY MORNING'S VIS IMAGERY SUGGESTS THAT THE WAVE
AXIS COULD BE FURTHER W BASED ON THE SHAPE OF THE LOW-MID LEVEL
CLOUD FIELD...SO THE FORWARD SPEED OF THE WAVE MIGHT BE CLOSER
TO 20 KT. THIS WEAK FEATURE IS LOW-LATITUDE AND IT'S MAIN
FUNCTION IS PERTURBING THE ITCZ SLIGHTLY. SCATTERED MODERATE
CONVECTION IS WITHIN 180 NM E OF THE WAVE AXIS.

#2 Postby **StormTracker** » Mon May 21, 2007 6:25 am

drezee wrote:TROPICAL WAVE...THE FIRST TRACKED ON OUR SFC MAP IN 2007...IS
LOCATED ALONG 21W/22W S OF 10N MOVING W ABOUT 15 KT. THIS WAVE
APPEARS TO HAVE MOVED OFF THE AFRICAN COAST AROUND 06Z ON SAT
BASED ON SATELLITE AND SFC DATA OVER THE PAST FEW DAYS. THE WAVE
PLACEMENT WAS BASED ON LOW TO MID LEVEL CURVATURE SEEN ON NIGHT
CHANNEL VIS IMAGES WHICH ALSO SEEMED TO MESH WELL WITH A SHIP
AND BUOY REPORT SURROUNDING THE FEATURE. THE BUOY...CALL SIGN
31006...HAS BEEN PARTICULARLY HELPFUL SHOWING THE WIND VEER MORE
TOWARD THE E POSSIBLY INDICATING THE APPROACH OF THE WAVE AXIS.
HOWEVER...EARLY MORNING'S VIS IMAGERY SUGGESTS THAT THE WAVE
AXIS COULD BE FURTHER W BASED ON THE SHAPE OF THE LOW-MID LEVEL
CLOUD FIELD...SO THE FORWARD SPEED OF THE WAVE MIGHT BE CLOSER
TO 20 KT. THIS WEAK FEATURE IS LOW-LATITUDE AND IT'S MAIN
FUNCTION IS PERTURBING THE ITCZ SLIGHTLY. SCATTERED MODERATE
CONVECTION IS WITHIN 180 NM E OF THE WAVE AXIS.

Whooop there it is!!!

#3 Postby **cycloneye** » Mon May 21, 2007 6:26 am

Here we go with the start of the long parade of waves that every hurricane season march from east to west.Of the average of 60 waves,only a handfull of them go ahead and develop into more stronger systems.

Sjones · #4 Postby **Sjones** » Mon May 21, 2007 6:37 am

TROPICAL WAVE...THE FIRST TRACKED ON OUR SFC MAP IN 2007...IS
LOCATED ALONG 21W/22W S OF 10N MOVING W ABOUT 15 KT. THIS WAVE
APPEARS TO HAVE MOVED OFF THE AFRICAN COAST AROUND 06Z ON SAT
BASED ON SATELLITE AND SFC DATA OVER THE PAST FEW DAYS. THE WAVE
PLACEMENT WAS BASED ON LOW TO MID LEVEL CURVATURE SEEN ON NIGHT
CHANNEL VIS IMAGES WHICH ALSO SEEMED TO MESH WELL WITH A SHIP
AND BUOY REPORT SURROUNDING THE FEATURE. THE BUOY...CALL SIGN
31006...HAS BEEN PARTICULARLY HELPFUL SHOWING THE WIND VEER MORE
TOWARD THE E POSSIBLY INDICATING THE APPROACH OF THE WAVE AXIS.
HOWEVER...EARLY MORNING'S VIS IMAGERY SUGGESTS THAT THE WAVE
AXIS COULD BE FURTHER W BASED ON THE SHAPE OF THE LOW-MID LEVEL
CLOUD FIELD...SO THE FORWARD SPEED OF THE WAVE MIGHT BE CLOSER
TO 20 KT. THIS WEAK FEATURE IS LOW-LATITUDE AND IT'S MAIN
FUNCTION IS PERTURBING THE ITCZ SLIGHTLY. SCATTERED MODERATE
CONVECTION IS WITHIN 180 NM E OF THE WAVE AXIS.

WOOT WOOT! The Season's On!!!!!

Extremeweatherguy · #5 Postby **Extremeweatherguy** » Mon May 21, 2007 6:37 am

I am amazed at how active the eastern Atlantic looking already! We might see more early-season systems than usual it seems once that moisture finally is able to work into the Caribbean and GOM.

#6 Postby **O Town** » Mon May 21, 2007 6:38 am

THIS WEAK FEATURE IS LOW-LATITUDE AND IT'S MAIN
FUNCTION IS PERTURBING THE ITCZ SLIGHTLY.

Interesting.

#7 Postby **AnnularCane** » Mon May 21, 2007 9:42 am

I thought there was already a first wave of the season. Actually, I think I remember two of those.

#8 Postby **cycloneye** » Mon May 21, 2007 1:16 pm

This wave was dropped by TPC at the 2:05 PM EDT discussion as there is no data to support a wave in that area.

TROPICAL WAVE PREVIOUSLY LOCATED NEAR 21W/22W HAS BEEN REMOVED
FROM THE 12Z SURFACE ANALYSIS. VISIBLE SATELLITE IMAGERY HAS
INDICATED NO LOW-LEVEL CIRCULATION PRESENT IN THE REGION.
INSTEAD...NORTH FLOW IS PREDOMINATE IN THE LOWER LEVELS. IN
ADDITION...COMPUTER MODELS...SATELLITE DERIVED VORTICITY...AND
RECENT BUOY OBSERVATIONS ARE NOT SUPPORTIVE OF THE EXISTENCE OF
A TROPICAL WAVE. THE REGION WILL CONTINUE TO BE MONITORED FOR
MORE CONCLUSIVE DATA.

#9 Postby **HURAKAN** » Mon May 21, 2007 1:21 pm

The party didn't last very long!!! You guys almost caused news crews to flock in the Cape Verde Islands!!!!

#10 Postby **AnnularCane** » Mon May 21, 2007 1:35 pm

Maybe the poor little wave was jinxed.

First official Tropical Wave of the season

First official Tropical Wave of the season

Re: First official Tropical Wave of the season

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