Memphis Weather Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:20 PM, Indystorm said: Just a caveat to remember prior comments not to take GFS pressures quite literally. Focus on the rapidly deepening trend. Even with that caution this is concerning. Expand Exactly. Nobody should be running with a sub 900 pressure but there is a clear trend for intensification. And IR imagery very clearly shows that the inner core has been relatively undisrupted which means once the broader circulation is offshore and fluxes are back to being more directly ocean-based...there's not much for at least a steady deepening up to the keys if not farther. Link to comment Share on other sites More sharing options...
HKY_WX Posted September 9, 2017 Share Posted September 9, 2017 The CDO started exploding literally the minute it got off Cuba. That's a pretty good indication the inner core is fully intact. This storm is a beast mayne. Link to comment Share on other sites More sharing options...
CheeselandSkies Posted September 9, 2017 Share Posted September 9, 2017 First U.S. tornado warning associated with Irma out for the Everglades City area. Link to comment Share on other sites More sharing options...
forecasterjack Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:29 PM, Raine1212 said: I asked this question in the other thread, could someone please answer, trying to prepare Could someone tell me if this is possible and tell me how much raine please, i am in the red area Expand To figure out how much rain is likely at your place, go here: https://weather.us/forecast/ensemble and type in your town. Then you'll be able to compare all the ECMWF ensemble guidance for rainfall, wind gusts, and other parameters. You'll be able to see the mean, max, min, and 10th/90th percentile forecasts for each parameter to show you the range of possible outcomes. It looks like you could get quite a bit of rain! Link to comment Share on other sites More sharing options...
Indystorm Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:33 PM, CheeselandSkies said: First U.S. tornado warning associated with Irma out for the Everglades City area. Expand Yes, and SPC now has a tornado watch out for all of south Florida and the Keys until Midnight. Link to comment Share on other sites More sharing options...
MattPetrulli Posted September 9, 2017 Share Posted September 9, 2017 Nice banding developing/coming into range with the CDO. Eyewall and circulation are also increasingly looking better. Link to comment Share on other sites More sharing options...
Memphis Weather Posted September 9, 2017 Share Posted September 9, 2017 http://www.nhc.noaa.gov/refresh/graphics_at1+shtml/154304.shtml?inundation#contents Surge Map just updated post 11a Advisory and predictably has gotten much more dire for SW FL as well as Tampa area. Link to comment Share on other sites More sharing options...
eyewall Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:39 PM, MattPetrulli said: Nice banding developing/coming into range with the CDO. Eyewall and circulation are also increasingly looking better. Expand The Cuba exit is pretty apparent now on radar and sat imagery. Link to comment Share on other sites More sharing options...
Hoosier Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:20 PM, Indystorm said: Just a caveat to remember prior comments not to take GFS pressures quite literally. Focus on the rapidly deepening trend. Even with that caution this is concerning. Expand This. The guidance showing rapid deepening is seeing something. Nobody knows for sure how deep or just how much the winds will respond, but there is a solid window of time over the bath water. Link to comment Share on other sites More sharing options...
Amped Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 1:51 PM, Lookout said: a little different though...Ike had a lot more interaction with cuba...it went across/interacted with.. the entire length of cuba... FWIW, right now irma is a bit north of the 0z euro last night...and if it continues on this path it would be significantly north...not in miles per se but just the fact the euro had irma actually fully inland over the next few hours. The reason i find this is interesting is that irma might/should be in a little better shape than the euro showed it to be when it moves away from cuba which is important i think considering how much the euro restrengthens it...929 mbs at landfall. Expand GFS was way faster with the 12z track. This may have been one of the reasons. Link to comment Share on other sites More sharing options...
Master of Disaster Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:33 PM, CheeselandSkies said: First U.S. tornado warning associated with Irma out for the Everglades City area. Expand HUH? There were two this morning alone. Link to comment Share on other sites More sharing options...
wxsniss Posted September 9, 2017 Share Posted September 9, 2017 Judging center from radar, Irma would have to track south/southwest from current position to be at the 2pm position depicted by the 0z Euro (which had it roughly 20 miles inland, between Morón and Ciego de Ávila)... Link to comment Share on other sites More sharing options...
Master of Disaster Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:45 PM, CheeselandSkies said: Oh. Didn't know that. Expand Yea Collier County about 9am or so. Link to comment Share on other sites More sharing options...
audioguy3107 Posted September 9, 2017 Share Posted September 9, 2017 If you look at the last several frames of the AVN satellite loop, The CDO is literally exploding in size as well, it contracted quite a bit over the last 12 hours, but seems to be rapidly expanding in size as well as intensity. That didn't take long. Link to comment Share on other sites More sharing options...
donsutherland1 Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:42 PM, Hoosier said: This. The guidance showing rapid deepening is seeing something. Nobody knows for sure how deep or just how much the winds will respond, but there is a solid window of time over the bath water. Expand And some past hurricanes have deepened explosively over the Florida Straits. Link to comment Share on other sites More sharing options...
eyewall Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:47 PM, CheeselandSkies said: I could swear the last few frames of the Key West reflectivity loop it's hooking back to the left (toward Cuba), but that might just be a mirage caused by the rotation. Expand There will be wobbles but the general turn is starting. Link to comment Share on other sites More sharing options...
Rtd208 Posted September 9, 2017 Share Posted September 9, 2017 Irma is really starting to look good on the Goes-16 IR as she pulls away from Cuba IMO. Link to comment Share on other sites More sharing options...
USCG RS Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:46 PM, audioguy3107 said: If you look at the last several frames of the AVN satellite loop, The CDO is literally exploding in size as well, it contracted quite a bit over the last 12 hours, but seems to be rapidly expanding in size as well as intensity. That didn't take long.The cloud Tops are really cooling as well. Her core is in very good shape. There is no sheer to speak of. The outflow is good in all quadrants. Of course water Temps. She is primed for RI. Link to comment Share on other sites More sharing options...
Quincy Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:38 PM, Indystorm said: Yes, and SPC now has a tornado watch out for all of south Florida and the Keys until Midnight. Expand Yeah, the tornado threat is really going to ramp up tonight. Low to mid level wind profiles will become increasing favorable tonight and a nocturnal tornado threat will be a major concern. An outbreak of relatively short-lived tornadoes seems like a realistic possibility tomorrow over central/South Florida given the degree of low level shear and favorable positioning on the right side of the storm's track. 12z 3km NAM: Link to comment Share on other sites More sharing options...
wkd Posted September 9, 2017 Share Posted September 9, 2017 HRRR doesn't appear to have done too well on their 15Z run. Link to comment Share on other sites More sharing options...
jpeters3 Posted September 9, 2017 Share Posted September 9, 2017 Analyzed shear looks very weak at the moment, which may be why models are indicating a bout of rapid intensification. Link to comment Share on other sites More sharing options...
wxsniss Posted September 9, 2017 Share Posted September 9, 2017 In addition to being at least 20 miles north of where 0z Euro progged for 2pm, current location of Irma is on the northernmost end of 0z EPS members. Link to comment Share on other sites More sharing options...
bobbutts Posted September 9, 2017 Share Posted September 9, 2017 Clearly looking better organized last few hours. If I extrapolate the track from the radar last few hours it's heading just about directly at Key West. Link to comment Share on other sites More sharing options...
JerseyWeatherGuys Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 4:53 PM, USCG RS said: On 9/9/2017 at 4:46 PM, audioguy3107 said: If you look at the last several frames of the AVN satellite loop, The CDO is literally exploding in size as well, it contracted quite a bit over the last 12 hours, but seems to be rapidly expanding in size as well as intensity. That didn't take long. Expand The cloud Tops are really cooling as well. Her core is in very good shape. There is no sheer to speak of. The outflow is good in all quadrants. Of course water Temps. She is primed for RI. Expand Link to comment Share on other sites More sharing options...
jacindc Posted September 9, 2017 Share Posted September 9, 2017 Helpful graphic from cranky: Link to comment Share on other sites More sharing options...
Amped Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 5:03 PM, wxsniss said: In addition to being at least 20 miles north of where 0z Euro progged for 2pm, current location of Irma is on the northernmost end of 0z EPS members. Expand Happened with Mathew last year around the time it hit this latitude. I don't know if this will shift the landfall point but it's certainly hitting florida a few hours sooner than expected. Link to comment Share on other sites More sharing options...
Hurricane Agnes Posted September 9, 2017 Share Posted September 9, 2017 Have been watching the convection and it really started firing up once the eye cleared the coast of Cuba - https://www.lightningmaps.org/?lang=en#y=25.2265;x=-79.6598;z=6;t=3;m=sat;r=0;s=0;o=0;b=0.00;n=0;d=2;dl=2;dc=0; Link to comment Share on other sites More sharing options...
csnavywx Posted September 9, 2017 Share Posted September 9, 2017 Amazing how well it is coast-following. There's still enough of a westward/southward steering component left to keep it close to the coast once the torque component weakens. This behavior should end once it rounds the bend near La Teja. Link to comment Share on other sites More sharing options...
f2tornado Posted September 9, 2017 Share Posted September 9, 2017 On 9/9/2017 at 3:59 PM, mudaddict said: That's 850 guys Expand But that's only 46mb above the (likely over-zealously modeled) 896 core. Basically accurate for the top floors of taller skyscrapers near the core. Tampa has many. The NHC will commonly note to prepare for one SS category higher in hi-rise buildings. Link to comment Share on other sites More sharing options...
winterymix Posted September 9, 2017 Share Posted September 9, 2017 Movement away from the Cuban coast is very slow so far but the northward expansion of the CDO is explosive. I wonder if the NNE expansion hints at at shift very slight toward the right for the next few hours. Link to comment Share on other sites More sharing options...
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