dan11295 Posted August 28, 2012 Share Posted August 28, 2012 If Isaac was going to start moving due West instead of onshore would have to to it about now. So far movement is still NW. Link to comment Share on other sites More sharing options...
CoastalWx Posted August 28, 2012 Share Posted August 28, 2012 Isn't it almost about to make landfall the eye is already a tiny bit over land. Im I seeimg something wrong.. It's still over the water to the south. It's slowly organizing a little more. Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 28, 2012 Share Posted August 28, 2012 Isn't it almost about to make landfall the eye is already a tiny bit over land. Im I seeimg something wrong.. the large outer eye feature has been for some time, although calling that area land is pretty generous. Link to comment Share on other sites More sharing options...
turtlehurricane Posted August 28, 2012 Share Posted August 28, 2012 FWIW The Gustav surge at Shell Beach was 9.5 ft; looks like this will be easily beaten. Surge suddenly started dropping at the station on Lake Ponchartrain, though - not sure why. Good to know, just looked up Katrina and the surge was ~20 ft during that. Link to comment Share on other sites More sharing options...
Hoosier Posted August 28, 2012 Share Posted August 28, 2012 The Euro actually appears to deepen it after making landfall. While that solution seems a little suspicious, perhaps it is a reflection of the improving environment around the storm. Also, despite a potentially prolonged period of land interaction, isn't most of the area near the coast swampy/low terrain? That could cause slower weakening compared to having part of the core over more inhospitable terrain. Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 Not too shabby Link to comment Share on other sites More sharing options...
PSUBlizzicane2007 Posted August 28, 2012 Share Posted August 28, 2012 It's interesting to watch the radar out of Mobile right now... look at the outer rain band currently affecting the northwest Florida coast. You can see waves propagating through the rain band! Link to comment Share on other sites More sharing options...
ChrisM Posted August 28, 2012 Share Posted August 28, 2012 The Euro actually appears to deepen it after making landfall. While that solution seems a little suspicious, perhaps it is a reflection of the improving environment around the storm. Also, despite a potentially prolonged period of land interaction, isn't most of the area near the coast swampy/low terrain? That could cause slower weakening compared to having part of the core over more inhospitable terrain. It's not really what most would consider a "solid land mass". Check out this landsat image of LA, a lot of the terrain south of New Orleans is extremely low lying, swampy land like you said. I guess there will still be friction in play with the land that there is but in those southern most areas if you take a 5 square mile chunk maybe 2 or 3 of it will be actual land by area? http://gis.deq.state.la.us/map_inventory_files/data_files/map_numbers/2003/jpegs/200301007.jpg Link to comment Share on other sites More sharing options...
Sunny and Warm Posted August 28, 2012 Share Posted August 28, 2012 Not too shabby It no longer has a lopsided circulation and has great outflow atm. Seems to be in a strengthening mode and the best it's looked. Link to comment Share on other sites More sharing options...
tornadotony Posted August 28, 2012 Share Posted August 28, 2012 The inner eyewall is closed off now on KLIX radar. Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 Becoming an impressive system now. Malfunctioning or not, KMIS just reported a 92 knot gust. Stations nearby also show strong gusts. Secondary eye is becoming defined within the primary "wall" Link to comment Share on other sites More sharing options...
cast4 Posted August 28, 2012 Share Posted August 28, 2012 It also looks like the original larger eye is trying to fill in as well on KLIX. Link to comment Share on other sites More sharing options...
David Reimer Posted August 28, 2012 Share Posted August 28, 2012 Link to comment Share on other sites More sharing options...
wxsniss Posted August 28, 2012 Share Posted August 28, 2012 some disparity in how we are defining the "eye": if there's just one large spiral band vs. a defined circle if it's large (80 nm) that has already contacted land vs. if there's a smaller inner circle there does appear to be a smaller inner circle that i've marked in red. if you loop the radar, you'll see all echoes circling around it (from 4:34 CDT): Link to comment Share on other sites More sharing options...
Uncle Bobby Posted August 28, 2012 Share Posted August 28, 2012 Big, bad, beautiful. Link to comment Share on other sites More sharing options...
SACRUS Posted August 28, 2012 Share Posted August 28, 2012 Latest WV Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 Looks like my "meso-low" was in the embryonic stages of becoming an "eye" feature. Link to comment Share on other sites More sharing options...
David Reimer Posted August 28, 2012 Share Posted August 28, 2012 Very impressive structure has developed over the past hour. The smaller eye is about to make landfall near the mouth of the Mississippi, but I don't know if that will have any sort of negative effect since that's just marsh. Also of note, cloud to ground lightning strike just now near the NE eye wall. Link to comment Share on other sites More sharing options...
David Reimer Posted August 28, 2012 Share Posted August 28, 2012 NOAA2 3309A ISAAC HDOB 15 20120828 215430 2905N 08916W 6952 03014 9797 +150 +122 070036 036 /// /// 03 215500 2903N 08916W 6951 03011 9798 +146 +124 071033 034 /// /// 03 215530 2901N 08915W 6951 03008 9795 +147 +120 066029 031 /// /// 03 215600 2859N 08914W 6952 03003 9793 +145 +122 063026 026 /// /// 03 215630 2857N 08914W 6953 03000 9789 +145 +127 058025 026 /// /// 03 215700 2855N 08912W 6952 02994 9783 +148 +114 058026 026 /// /// 03 215730 2853N 08911W 6951 02993 9778 +148 +116 059025 025 /// /// 03 215800 2852N 08910W 6953 02988 9774 +147 +133 052025 026 /// /// 03 215830 2850N 08909W 6950 02988 9764 +149 +145 047019 020 /// /// 03 215900 2848N 08907W 6953 02981 9756 +154 +138 038013 016 /// /// 03 215930 2847N 08905W 6954 02978 9753 +153 +137 034008 010 /// /// 03 220000 2846N 08903W 6954 02974 9751 +151 +143 147004 006 021 002 00 220030 2846N 08901W 6953 02975 9745 +158 +143 189019 024 012 002 03 220100 2847N 08900W 6953 02980 9738 +168 +134 163029 030 023 001 00 220130 2849N 08858W 6950 02985 9739 +171 +129 154035 035 030 002 00 220200 2850N 08856W 6951 02986 9745 +171 +110 147040 041 036 001 00 220230 2852N 08855W 6952 02985 9750 +167 +122 150041 042 036 001 00 220300 2853N 08853W 6951 02989 9761 +157 +128 150039 040 037 001 00 220330 2855N 08851W 6952 02989 9762 +157 +132 151042 043 038 001 00 220400 2857N 08850W 6952 02992 9766 +156 +124 151044 045 038 000 00 Link to comment Share on other sites More sharing options...
turtlehurricane Posted August 28, 2012 Share Posted August 28, 2012 Very impressive structure has developed over the past hour. The smaller eye is about to make landfall near the mouth of the Mississippi, but I don't know if that will have any sort of negative effect since that's just marsh. Also of note, cloud to ground lightning strike just now near the NE eye wall. It's not even a marsh at this point, simply water and relatively small areas boxed off by levees. 7.5 ft of surge at Shell Beach. Surge in New Orleans rising again, up to 2.5 ft. Link to comment Share on other sites More sharing options...
Kaner587 Posted August 28, 2012 Share Posted August 28, 2012 NOAA2 3309A ISAAC HDOB 15 20120828 215430 2905N 08916W 6952 03014 9797 +150 +122 070036 036 /// /// 03 215500 2903N 08916W 6951 03011 9798 +146 +124 071033 034 /// /// 03 215530 2901N 08915W 6951 03008 9795 +147 +120 066029 031 /// /// 03 215600 2859N 08914W 6952 03003 9793 +145 +122 063026 026 /// /// 03 215630 2857N 08914W 6953 03000 9789 +145 +127 058025 026 /// /// 03 215700 2855N 08912W 6952 02994 9783 +148 +114 058026 026 /// /// 03 215730 2853N 08911W 6951 02993 9778 +148 +116 059025 025 /// /// 03 215800 2852N 08910W 6953 02988 9774 +147 +133 052025 026 /// /// 03 215830 2850N 08909W 6950 02988 9764 +149 +145 047019 020 /// /// 03 215900 2848N 08907W 6953 02981 9756 +154 +138 038013 016 /// /// 03 215930 2847N 08905W 6954 02978 9753 +153 +137 034008 010 /// /// 03 220000 2846N 08903W 6954 02974 9751 +151 +143 147004 006 021 002 00 220030 2846N 08901W 6953 02975 9745 +158 +143 189019 024 012 002 03 220100 2847N 08900W 6953 02980 9738 +168 +134 163029 030 023 001 00 220130 2849N 08858W 6950 02985 9739 +171 +129 154035 035 030 002 00 220200 2850N 08856W 6951 02986 9745 +171 +110 147040 041 036 001 00 220230 2852N 08855W 6952 02985 9750 +167 +122 150041 042 036 001 00 220300 2853N 08853W 6951 02989 9761 +157 +128 150039 040 037 001 00 220330 2855N 08851W 6952 02989 9762 +157 +132 151042 043 038 001 00 220400 2857N 08850W 6952 02992 9766 +156 +124 151044 045 038 000 00 973.8 extrapolated Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 NOAA just went through the smaller center and found a pressure of 973mbs with a 23 knot surface wind. Also, just noticed the SW eyewall has 48kft tops. Link to comment Share on other sites More sharing options...
wxsniss Posted August 28, 2012 Share Posted August 28, 2012 NOAA2 3309A ISAAC HDOB 15 20120828 215430 2905N 08916W 6952 03014 9797 +150 +122 070036 036 /// /// 03 215500 2903N 08916W 6951 03011 9798 +146 +124 071033 034 /// /// 03 215530 2901N 08915W 6951 03008 9795 +147 +120 066029 031 /// /// 03 215600 2859N 08914W 6952 03003 9793 +145 +122 063026 026 /// /// 03 215630 2857N 08914W 6953 03000 9789 +145 +127 058025 026 /// /// 03 215700 2855N 08912W 6952 02994 9783 +148 +114 058026 026 /// /// 03 215730 2853N 08911W 6951 02993 9778 +148 +116 059025 025 /// /// 03 215800 2852N 08910W 6953 02988 9774 +147 +133 052025 026 /// /// 03 215830 2850N 08909W 6950 02988 9764 +149 +145 047019 020 /// /// 03 215900 2848N 08907W 6953 02981 9756 +154 +138 038013 016 /// /// 03 215930 2847N 08905W 6954 02978 9753 +153 +137 034008 010 /// /// 03 220000 2846N 08903W 6954 02974 9751 +151 +143 147004 006 021 002 00 220030 2846N 08901W 6953 02975 9745 +158 +143 189019 024 012 002 03 220100 2847N 08900W 6953 02980 9738 +168 +134 163029 030 023 001 00 220130 2849N 08858W 6950 02985 9739 +171 +129 154035 035 030 002 00 220200 2850N 08856W 6951 02986 9745 +171 +110 147040 041 036 001 00 220230 2852N 08855W 6952 02985 9750 +167 +122 150041 042 036 001 00 220300 2853N 08853W 6951 02989 9761 +157 +128 150039 040 037 001 00 220330 2855N 08851W 6952 02989 9762 +157 +132 151042 043 038 001 00 220400 2857N 08850W 6952 02992 9766 +156 +124 151044 045 038 000 00 someone map these coordinates and compare to the inner small eye we're discussing Link to comment Share on other sites More sharing options...
PatrickSumner Posted August 28, 2012 Share Posted August 28, 2012 973.8 extrapolated It's certainly strengthening. Could we have a weak CAT 2 by landfall? Link to comment Share on other sites More sharing options...
David Reimer Posted August 28, 2012 Share Posted August 28, 2012 someone map these coordinates and compare to the inner small eye we're discussing I'm using the data in Google Earth and it is our small eye. Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 someone map these coordinates and compare to the inner small eye we're discussing Link to comment Share on other sites More sharing options...
lester Posted August 28, 2012 Share Posted August 28, 2012 someone map these coordinates and compare to the inner small eye we're discussing Link to comment Share on other sites More sharing options...
PennyForYourThoughts Posted August 28, 2012 Share Posted August 28, 2012 It's interesting to watch the radar out of Mobile right now... look at the outer rain band currently affecting the northwest Florida coast. You can see waves propagating through the rain band! Yeah, I was right underneath that band a few minutes ago here just to the east of Pensacola in Santa Rosa County. tornado warning for most of the county. Rough winds for a few but the power held up ok. Link to comment Share on other sites More sharing options...
Superstorm93 Posted August 28, 2012 Share Posted August 28, 2012 Winds have kicked up immensely in the NE quadrant of the large wall. Seeing a large amount of 85+ knot winds from KLIX radar. Link to comment Share on other sites More sharing options...
MGorse Posted August 28, 2012 Share Posted August 28, 2012 HURRICANE ISAAC TROPICAL CYCLONE POSITION ESTIMATE NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 500 PM CDT TUE AUG 28 2012 AT 500 PM CDT...2200 UTC...THE CENTER OF HURRICANE ISAAC WAS ESTIMATED BY NOAA DOPPLER WEATHER RADAR NEAR LATITUDE 28.7 NORTH...LONGITUDE 89.2 WEST...OR ABOUT 30 MILES SOUTH OF THE MOUTH OF THE MISSISSIPPI RIVER...AND ABOUT 105 MILES SOUTH-SOUTHEAST OF NEW ORLEANS LOUISIANA. A WIND GUST TO 71 MPH WAS RECENTLY REPORTED AT BOOTHEVILLE LOUISIANA. A SUSTAINED WIND OF 44 MPH WITH A GUST TO 55 MPH WAS OBSERVED WITHIN THE PAST HOUR AT LAKEFRONT AIRPORT IN NEW ORLEANS. A STORM SURGE OF 7.1 FEET WAS RECENTLY REPORTED AT A NATIONAL OCEAN SERVICE TIDE GAUGE AT SHELL BEACH LOUISIANA. A STORM SURGE OF 4.8 FEET WAS OBSERVED AT A NATIONAL OCEAN SERVICE TIDE GAUGE IN WAVELAND MISSISSIPPI. SUMMARY OF 500 PM CDT...2200 UTC...INFORMATION -------------------------------------------------- LOCATION...28.7N 89.2W ABOUT 30 MI...45 KM S OF THE MOUTH OF THE MISSISSIPPI RIVER ABOUT 105 MI...170 KM SSE OF NEW ORLEANS LOUISIANA MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...975 MB...28.79 INCHES $$ FORECASTER BROWN Link to comment Share on other sites More sharing options...
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