ATL: ARLENE - Remnants
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- cycloneye
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Re: ATL: INVEST 95L - Discussion
Remains at 50%
TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT TUE JUN 28 2011
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
CLOUDINESS AND SHOWERS ACCOMPANYING A BROAD AREA OF LOW PRESSURE
OVER THE BAY OF CAMPECHE HAVE CHANGED LITTLE IN ORGANIZATION
OVERNIGHT. UPPER-LEVEL WINDS ARE FORECAST TO GRADUALLY BECOME MORE
CONDUCIVE FOR DEVELOPMENT DURING THE NEXT COUPLE OF DAYS. THERE IS
A MEDIUM CHANCE...50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST-NORTHWESTWARD AT
5 TO 10 MPH. AN AIR FORCE RESERVE UNIT HURRICANE HUNTER PLANE IS
SCHEDULED TO INVESTIGATE THE AREA THIS AFTERNOON...IF NECESSARY.
REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINS AND GUSTY WINDS
SHOULD CONTINUE OVER PORTIONS OF EASTERN MEXICO OVER THE NEXT DAY
OR TWO.
ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
$$
FORECASTER PASCH/BERG
TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT TUE JUN 28 2011
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
CLOUDINESS AND SHOWERS ACCOMPANYING A BROAD AREA OF LOW PRESSURE
OVER THE BAY OF CAMPECHE HAVE CHANGED LITTLE IN ORGANIZATION
OVERNIGHT. UPPER-LEVEL WINDS ARE FORECAST TO GRADUALLY BECOME MORE
CONDUCIVE FOR DEVELOPMENT DURING THE NEXT COUPLE OF DAYS. THERE IS
A MEDIUM CHANCE...50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL
CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST-NORTHWESTWARD AT
5 TO 10 MPH. AN AIR FORCE RESERVE UNIT HURRICANE HUNTER PLANE IS
SCHEDULED TO INVESTIGATE THE AREA THIS AFTERNOON...IF NECESSARY.
REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINS AND GUSTY WINDS
SHOULD CONTINUE OVER PORTIONS OF EASTERN MEXICO OVER THE NEXT DAY
OR TWO.
ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
$$
FORECASTER PASCH/BERG
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- wxman57
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Re: ATL: INVEST 95L - Discussion
Still nothing there but a wave. No evidence of any LLC on surface obs. The wave is just kicking up some 15-25 kt winds across the region. Winds and seas will be higher near thunderstorms, that's it. In fact, the wave axis appears to be past 95W now, as is evident in surface obs and in MIMIC-TPW imagery. No need for any recon today, it will likely be canceled.
MIMIC loop - note the wave axis near 95W:
http://cimss.ssec.wisc.edu/tropic/real- ... /main.html
Here's a plot with surface obs and wave axis identified.
MIMIC loop - note the wave axis near 95W:
http://cimss.ssec.wisc.edu/tropic/real- ... /main.html
Here's a plot with surface obs and wave axis identified.
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- cycloneye
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Re: ATL: INVEST 95L - Discussion
From the 8 AM Discussion:
...SPECIAL FEATURE...
BROAD LOW PRESSURE CONTINUES TO COVER THE SRN GULF OF MEXICO
WITH A 1007 MB SURFACE LOW LOCATED NEAR 20N93W...JUST E OF A
TROPICAL WAVE ALONG 94W/95W. CURRENTLY A LARGE AREA OF NUMEROUS
MODERATE/SCATTERED STRONG CONVECTION IS E OF THE LOW CENTER OVER
THE YUCATAN PENINSULA FROM 18N-22N BETWEEN 86W-93W. UPPER LEVEL
WINDS ARE CURRENTLY NOT FAVORABLE FOR DEVELOPMENT...BUT COULD
BECOME SO OVER THE NEXT COUPLE OF DAYS. REGARDLESS OF
DEVELOPMENT...SIGNIFICANT MOISTURE WILL REMAIN OVER THE SRN GULF
AND YUCATAN PENINSULA LIKELY SUPPORTING STRONG
SHOWERS/THUNDERSTORMS ALONG WITH GUSTY WINDS AS THE SYSTEM
DRIFTS WNW OVER THE NEXT 48 HOURS.
...SPECIAL FEATURE...
BROAD LOW PRESSURE CONTINUES TO COVER THE SRN GULF OF MEXICO
WITH A 1007 MB SURFACE LOW LOCATED NEAR 20N93W...JUST E OF A
TROPICAL WAVE ALONG 94W/95W. CURRENTLY A LARGE AREA OF NUMEROUS
MODERATE/SCATTERED STRONG CONVECTION IS E OF THE LOW CENTER OVER
THE YUCATAN PENINSULA FROM 18N-22N BETWEEN 86W-93W. UPPER LEVEL
WINDS ARE CURRENTLY NOT FAVORABLE FOR DEVELOPMENT...BUT COULD
BECOME SO OVER THE NEXT COUPLE OF DAYS. REGARDLESS OF
DEVELOPMENT...SIGNIFICANT MOISTURE WILL REMAIN OVER THE SRN GULF
AND YUCATAN PENINSULA LIKELY SUPPORTING STRONG
SHOWERS/THUNDERSTORMS ALONG WITH GUSTY WINDS AS THE SYSTEM
DRIFTS WNW OVER THE NEXT 48 HOURS.
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- cycloneye
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Re: ATL: INVEST 95L - Discussion
12z Best Track
AL, 95, 2011062812, , BEST, 0, 198N, 927W, 25, 1006, DB
AL, 95, 2011062812, , BEST, 0, 198N, 927W, 25, 1006, DB
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- cycloneye
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Re: ATL: INVEST 95L - Models
12z Models
Still SHIP has a minimal TS at landfall.
Still SHIP has a minimal TS at landfall.
Code: Select all
WHXX01 KWBC 281236
CHGHUR
TROPICAL CYCLONE GUIDANCE MESSAGE
NWS NATIONAL HURRICANE CENTER MIAMI FL
1236 UTC TUE JUN 28 2011
DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.
PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE
AND SUBTROPICAL CYCLONE INFORMATION.
ATLANTIC OBJECTIVE AIDS FOR
DISTURBANCE INVEST (AL952011) 20110628 1200 UTC
...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...
110628 1200 110629 0000 110629 1200 110630 0000
LAT LON LAT LON LAT LON LAT LON
BAMS 19.8N 92.7W 20.5N 94.6W 20.9N 96.4W 21.0N 98.1W
BAMD 19.8N 92.7W 20.4N 94.0W 20.7N 95.3W 20.9N 96.8W
BAMM 19.8N 92.7W 20.4N 94.3W 20.7N 95.9W 20.9N 97.6W
LBAR 19.8N 92.7W 20.5N 94.1W 21.4N 95.9W 22.2N 97.9W
SHIP 25KTS 31KTS 38KTS 45KTS
DSHP 25KTS 31KTS 38KTS 36KTS
...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...
110630 1200 110701 1200 110702 1200 110703 1200
LAT LON LAT LON LAT LON LAT LON
BAMS 21.1N 99.7W 21.1N 102.8W 21.1N 106.5W 21.5N 110.2W
BAMD 21.0N 98.5W 21.0N 102.1W 21.2N 106.0W 21.6N 109.8W
BAMM 20.9N 99.3W 20.7N 102.8W 20.7N 106.6W 20.9N 110.6W
LBAR 23.0N 100.1W 24.4N 104.0W 26.8N 108.1W 29.7N 110.5W
SHIP 51KTS 64KTS 69KTS 65KTS
DSHP 30KTS 27KTS 30KTS 26KTS
...INITIAL CONDITIONS...
LATCUR = 19.8N LONCUR = 92.7W DIRCUR = 285DEG SPDCUR = 5KT
LATM12 = 19.5N LONM12 = 91.5W DIRM12 = 290DEG SPDM12 = 6KT
LATM24 = 19.0N LONM24 = 90.3W
WNDCUR = 25KT RMAXWD = 60NM WNDM12 = 20KT
CENPRS = 1006MB OUTPRS = 1010MB OUTRAD = 180NM SDEPTH = M
RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM
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- cycloneye
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Re: ATL: INVEST 95L - Discussion
First SSD Dvorak classification for 95L:
28/1215 UTC 20.4N 93.2W T1.0/1.0 95L -- Atlantic
http://www.ssd.noaa.gov/PS/TROP/tdpositions.html
The floater is now up for 95L.
28/1215 UTC 20.4N 93.2W T1.0/1.0 95L -- Atlantic
http://www.ssd.noaa.gov/PS/TROP/tdpositions.html
The floater is now up for 95L.
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Re: ATL: INVEST 95L - Discussion
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Re: ATL: INVEST 95L - Discussion
LOOP: http://wwwghcc.msfc.nasa.gov/cgi-bin/ge ... umframes=7
Looks like an LLC might be forming. As noted above you can see west moving storms near the northern coast.
Shear is decreasing rapidly.
Looks like an LLC might be forming. As noted above you can see west moving storms near the northern coast.
Shear is decreasing rapidly.
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M a r k
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- wxman57
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Re:
HURAKAN wrote:http://img830.imageshack.us/img830/6503/61357493.jpg
based on the visible image loops, this is where the LLC appears to be forming
I can see what looks like a small eddy there. It's rotating westward for now but should turn SW soon. Just to the north, the buoy reports a rising pressure and decreasing easterly wind. I don't think that eddy is a significant feature. I would look a little farther south for any LLC to form (19.8N/93.6W - just outside the bottom edge of that circle). Surface obs in southern Mexico still don't show any westerly winds, but it's possible there could be a small weak low to the north that isn't quite extending to the coast yet.
Recon will likely be canceled for today. Any development would be tomorrow, not long before it moves inland.
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- Hylian Auree
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Imo there has been a lot of improvement compared to yesterday. The spinning and convection seem to be consolidating, compared to yesterday's broad and disorganized gyre. Last night I was somewhat dubious about giving it a 50% chance of development, but if the trend + abating wind shear continues, I think we could be seeing code red by 2 PM.
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- cycloneye
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Re: ATL: INVEST 95L - Recon
Recon is a go for this afternoon. Here is todays TCPOD for Wednesday and Thursday.
Code: Select all
NOUS42 KNHC 281500
WEATHER RECONNAISSANCE FLIGHTS
CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
1100 AM EDT TUE 28 JUNE 2011
SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
VALID 29/1100Z TO 30/1100Z JUNE 2011
TCPOD NUMBER.....11-028
I. ATLANTIC REQUIREMENTS
1. SUSPECT AREA (BAY OF CAMPECHE)
FLIGHT ONE -- TEAL 72
A. 29/1800Z
B. AFXXX 02AAA INVEST
C. 29/1500Z
D. 21.0N 95.50W
E. 29/1730Z TO 29/2200Z
F. SFC TO 10,000 FT
FLIGHT TWO -- TEAL 73
A. 30/1200Z
B. AFXXX 0301A CYCLONE
C. 30/0915Z
D. 21.5N 97.0W
E. 30/1130Z TO 30/1600Z
F. SFC TO 10,000 FT.
2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.
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- cycloneye
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Re: ATL: INVEST 95L - Discussion
Hey Peeps,I just posted at the recon thread that the plane will go this afternoon as there are any remarks of cancellations.
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- cycloneye
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Re:
HURAKAN wrote:I think there could be a problem with the RECON info, both today and tomorrow say the same info.
What do you mean Sandy?
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- HURAKAN
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Re: Re:
cycloneye wrote:HURAKAN wrote:I think there could be a problem with the RECON info, both today and tomorrow say the same info.
What do you mean Sandy?
today and tomorrow say the same thing:
SUSPECT AREA (BAY OF CAMPECHE)
FLIGHT ONE -- TEAL 72
A. 29/1800Z
B. AFXXX 02AAA INVEST
C. 29/1500Z
D. 21.0N 95.50W
E. 29/1730Z TO 29/2200Z
F. SFC TO 10,000 FT
FLIGHT TWO -- TEAL 73
A. 30/1200Z
B. AFXXX 0301A CYCLONE
C. 30/0915Z
D. 21.5N 97.0W
E. 30/1130Z TO 30/1600Z
F. SFC TO 10,000 FT.
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