Yellow Evan Posted August 8, 2014 Share Posted August 8, 2014 Looks W maybe a hair N of W looking at the satellite. Looking at it now, probs due W movement. Link to comment Share on other sites More sharing options...
WEATHER53 Posted August 8, 2014 Share Posted August 8, 2014 How high are the mountains? Will the low end cat 1 aspect limit the upwelling and thus the trailer stays major? Link to comment Share on other sites More sharing options...
Yellow Evan Posted August 8, 2014 Share Posted August 8, 2014 How high are the mountains? Will the low end cat 1 aspect limit the upwelling and thus the trailer stays major? 13.8K feet. Link to comment Share on other sites More sharing options...
Absolute Humidity Posted August 8, 2014 Share Posted August 8, 2014 Weather Channel just aired Timmer's location with a back shot FWIW. Link to comment Share on other sites More sharing options...
Yellow Evan Posted August 8, 2014 Share Posted August 8, 2014 Recon's going out, but may not make it in time. Link to comment Share on other sites More sharing options...
boulderrr Posted August 8, 2014 Share Posted August 8, 2014 Looks like recon found the center and the pressure is up to 994mb. Link to comment Share on other sites More sharing options...
wxmeddler Posted August 8, 2014 Share Posted August 8, 2014 997mb on the "eye" sonde BUT the windspeed at the sfc was 175° at 18kts. So, it didn't nail the center. Link to comment Share on other sites More sharing options...
Yellow Evan Posted August 8, 2014 Share Posted August 8, 2014 Recon looks messed up. Somehow still a hurricane at 6z. Link to comment Share on other sites More sharing options...
The_Global_Warmer Posted August 8, 2014 Share Posted August 8, 2014 Has a tropical system ever delivered snow to the peaks out there? This is on the wiki hurricane page for Hawaii but it doesn't say it happened in a TC. It would obviously need to be later in the year. Link to comment Share on other sites More sharing options...
Chinook Posted August 8, 2014 Share Posted August 8, 2014 On the PHTO sounding, the wet-bulb zero is close to 600mb or 4400meters. That's a little above 13800 ft peaks. PHWA radar is showing the center is about 38 nautical miles (44-45 miles) from the nearest land. Interestingly, it is showing biological echoes (gray, on the left side) instead of rain, in the region you would think would be the rainy eyewall. Link to comment Share on other sites More sharing options...
tmagan Posted August 8, 2014 Share Posted August 8, 2014 On the PHTO sounding, the wet-bulb zero is close to 600mb or 4400meters. That's a little above 13800 ft peaks. PHWA radar is showing the center is about 38 nautical miles (44-45 miles) from the nearest land. Interestingly, it is showing biological echoes (gray, on the left side) instead of rain, in the region you would think would be the rainy eyewall. 2014_08_08_0641z_PHWA_iselle1_BR_and_hydrometeor.png I would think the gray would be sea salt/sea spray. Link to comment Share on other sites More sharing options...
Srain Posted August 8, 2014 Share Posted August 8, 2014 Iselle is making landfall between Kalapana and Panaluu (Black Sand Beach) based on radar imagery. Link to comment Share on other sites More sharing options...
Srain Posted August 8, 2014 Share Posted August 8, 2014 Downed trees, power outages and flooding reported across the E facing areas of the Big Island. Link to comment Share on other sites More sharing options...
uofmiami Posted August 8, 2014 Share Posted August 8, 2014 On the PHTO sounding, the wet-bulb zero is close to 600mb or 4400meters. That's a little above 13800 ft peaks. PHWA radar is showing the center is about 38 nautical miles (44-45 miles) from the nearest land. Interestingly, it is showing biological echoes (gray, on the left side) instead of rain, in the region you would think would be the rainy eyewall. 2014_08_08_0641z_PHWA_iselle1_BR_and_hydrometeor.png Here is why you saw biological echoes. Impressive pick up by the WSR! http://westhawaiitoday.com/hurricane-season-2014/release-hydrogen-sulfide-puna-geothermal-venture-plant-contained Link to comment Share on other sites More sharing options...
olafminesaw Posted August 8, 2014 Share Posted August 8, 2014 It's bizarre how the island appears to be eating the storm on radar. http://radar.weather.gov/radar.php?rid=HWA&product=N0Z&overlay=11101111&loop=yes Link to comment Share on other sites More sharing options...
Ginx snewx Posted August 8, 2014 Share Posted August 8, 2014 It's bizarre how the island appears to be eating the storm on radar. http://radar.weather.gov/radar.php?rid=HWA&product=N0Z&overlay=11101111&loop=yesMts blocking radar beam, great velocity loops, tugged NW Link to comment Share on other sites More sharing options...
IsentropicLift Posted August 8, 2014 Share Posted August 8, 2014 The land interaction seems to be tightning the circulation Link to comment Share on other sites More sharing options...
Ginx snewx Posted August 8, 2014 Share Posted August 8, 2014 Sudden flare up of cloud tops at landfall, siggy TS conditions Link to comment Share on other sites More sharing options...
dan11295 Posted August 8, 2014 Share Posted August 8, 2014 The mountains are just going to wring out the moisture from this storm, with the flow slamming right into them. Link to comment Share on other sites More sharing options...
texankitcat Posted August 8, 2014 Share Posted August 8, 2014 Woke up at 05:00 am expecting to see that Iselle had moved in already and wreaking it's havoc only to find it had slowed and weakened. Looks like rain will be the most dangerous feature of this storm. I shudder to think what 18-20 inches is going to do to the Windward side of the island. Flooding is going to be a major problem. Rock and land slides will most certainly occur along Highway 19 since that is the most vulnerable with the steep mountain ravines it winds through and the raging creeks which will become rivers with debris building up under bridges. That is always the area where slides are at their worst during even minor storms. Highway 19 becomes Highway 11 through Hilo and continues around the southern tip of the Island will also most likely close due to flooding/downed trees etc. with this area taking the brunt of the wind. Once that happens, Hilo will be cut off until the roads are cleared and opened. That will take a while. Saddlie Road which cuts through the center of the Island is a wasteland of poorly maintained bumpy road through an endless landscape of flat Lava fields which won't help flash flooding concerns. You get stuck there and you are on your own. Not a safe option at the best of conditions. Link to comment Share on other sites More sharing options...
texankitcat Posted August 8, 2014 Share Posted August 8, 2014 Official landfall in Pahala. That is a community South of Volcano National Park. Naalehu which is very close to Pahala is the major dairy town of the Big Island. Not a good place to have landfall. . Link to comment Share on other sites More sharing options...
Yellow Evan Posted August 8, 2014 Share Posted August 8, 2014 WTPA63 PHFO 081245 TCUCP3 TROPICAL STORM ISELLE TROPICAL CYCLONE UPDATE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP092014 245 AM HST FRI AUG 8 2014 ...CENTER OF ISELLE MAKES LANDFALL... THE CENTER OF TROPICAL STORM ISELLE MADE LANDFALL AT ABOUT 230 AM HST...1230 UTC...ALONG THE KAU COAST ON THE BIG ISLAND...ABOUT 5 MILES EAST OF PAHALA. SUMMARY OF 245 AM HST...1245 UTC...INFORMATION ---------------------------------------------- LOCATION...19.2N 155.4W ABOUT 40 MI...64 KM SSW OF HILO HAWAII ABOUT 225 MI...365 KM SE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...60 MPH...100 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1001 MB...29.56 INCHES $$ FORECASTER BIRCHARD Link to comment Share on other sites More sharing options...
dan11295 Posted August 8, 2014 Share Posted August 8, 2014 Flooding is obviously the big threat. Rainfall rates >4" hour now occuring on the island based on radar estimates. Link to comment Share on other sites More sharing options...
Srain Posted August 8, 2014 Share Posted August 8, 2014 Link to comment Share on other sites More sharing options...
Hvward Posted August 8, 2014 Share Posted August 8, 2014 Lots of lightning at landfall near the eye. Link to comment Share on other sites More sharing options...
thewxmann Posted August 8, 2014 Share Posted August 8, 2014 Iselle is decoupling. The MLC looks like it's being blocked/slowed down by Mauna Kea on the Big Island, while the (old) LLC might have been destroyed altogether. Latest satellite indicates a new LLC on the lee-side of Mauna Kea back out in the Pacific way out in front of the convection. Lee cyclogenesis in action. Link to comment Share on other sites More sharing options...
texankitcat Posted August 8, 2014 Share Posted August 8, 2014 Iselle is decoupling. The MLC looks like it's being blocked/slowed down by Mauna Kea on the Big Island, while the (old) LLC might have been destroyed altogether. Latest satellite indicates a new LLC on the lee-side of Mauna Kea back out in the Pacific way out in front of the convection. Lee cyclogenesis in action. You mean Mauna Loa? Link to comment Share on other sites More sharing options...
Chinook Posted August 8, 2014 Share Posted August 8, 2014 Official landfall in Pahala. That is a community South of Volcano National Park. Naalehu which is very close to Pahala is the major dairy town of the Big Island. Not a good place to have landfall. . There were some inward/outward base velocities in the 62-64 knot range at the time of landfall. The eye of the 'cane looks a little more like an ear. base velocity is at 2.5 degrees Link to comment Share on other sites More sharing options...
blueheronNC Posted August 8, 2014 Share Posted August 8, 2014 Saddlie Road which cuts through the center of the Island is a wasteland of poorly maintained bumpy road through an endless landscape of flat Lava fields which won't help flash flooding concerns. You get stuck there and you are on your own. Not a safe option at the best of conditions. Not anymore. As of last year, most of it has been upgraded to a smooth-as-silk, well-paved and well-marked highway (Daniel Inouye highway). Speed limit is 55 mph almost the entire stretch. It's an easy cruise in good conditions. Link to comment Share on other sites More sharing options...
It's Always Sunny Posted August 8, 2014 Share Posted August 8, 2014 Looks like the convection has expanded a bit once it made landfall with cloud tops warming. http://www.ssd.noaa.gov/PS/TROP/floaters/09E/flash-rb-short.html Link to comment Share on other sites More sharing options...
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