ATL: HARVEY - Post-Tropical - Discussion

[artist]

Usaf
URNT15 KNHC 252001
AF307 1909A HARVEY HDOB 21 20170825
195230 2716N 09626W 6970 02673 9439 +169 +146 246047 053 046 001 03
195300 2717N 09627W 6961 02667 9427 +160 +153 246034 043 038 001 01
195330 2719N 09628W 6972 02639 9415 +161 +154 241020 030 034 001 00
195400 2720N 09629W 6965 02645 9408 +166 +146 250008 016 030 001 03
195430 2721N 09630W 6967 02644 //// +157 //// 021010 015 023 000 05
195500 2723N 09632W 6966 02652 //// +156 //// 039027 032 029 002 01
195530 2724N 09633W 6971 02661 9441 +156 +156 038042 047 047 003 01
195600 2725N 09635W 6966 02693 9473 +153 //// 038057 064 079 005 01
195630 2726N 09636W 6967 02721 9518 +146 //// 045070 073 094 008 01
195700 2727N 09637W 6964 02758 9578 +145 +145 048090 103 097 014 00
195730 2728N 09639W 6973 02785 9645 +136 +136 044103 107 092 040 03
195800 27

[Nimbus]

Bastardi is now saying that Texas will be spared the worst of the hurricane since Harvey will be making landfall over a less populated area.

How true is this if one of the landfall points are Corpus Christi which has a population of nearly 325000?

JB probably means the northern eyewall might track over Tivoli which is open fields.

The storm is forecast to stall though so its not very reassuring.
I would probably be in back on the third floor of a parking garage about now with my weather radio and a couple days of basic bug out supplies.

[jdjaguar]

Are the planes releasing silver iodide to try to induce an EWRC? I know they did it for Matthew, Ike, and Sandy (although the greater area of strong winds may have caused more damage than a more intense smaller eyes was) and it generally kept them below max strength.

Under the guidelines of the Clean Water Act by the EPA, silver iodide is considered a hazardous substance, a priority pollutant, and as a toxic pollutant.

i sure hope not.

[Kingarabian]

Usaf
URNT15 KNHC 252001
AF307 1909A HARVEY HDOB 21 20170825

Yeah winds still the same.

[Hammy]

Max winds are in all quadrants now based on the latest pass.

[HurricaneRyan]

Are the planes releasing silver iodide to try to induce an EWRC? I know they did it for Matthew, Ike, and Sandy (although the greater area of strong winds may have caused more damage than a more intense smaller eyes was) and it generally kept them below max strength.

Where are you receipts for these claims?

[Iune]

Are the planes releasing silver iodide to try to induce an EWRC? I know they did it for Matthew, Ike, and Sandy (although the greater area of strong winds may have caused more damage than a more intense smaller eyes was) and it generally kept them below max strength.

Project Stormfury ended in 1983, and the last storm seeded was in 1971 (Hurricane Ginger)

[jdjaguar]

Are the planes releasing silver iodide to try to induce an EWRC? I know they did it for Matthew, Ike, and Sandy (although the greater area of strong winds may have caused more damage than a more intense smaller eyes was) and it generally kept them below max strength.

Um...what?

poster is alluding to Project Stormfury, which was allegedly discontinued in 1971, and disbanded in 1981.

[Hurricane Andrew]

Eye is becoming extremely round, heavy convection almost completely surrounds it. Should keep ramping up.

http://weather.cod.edu/satrad/exper/?pa ... o1-13-96-1

[GCANE]

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 25th day of the month at 20:07Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF98-5307
Storm Number & Year: 09 in 2017
Storm Name: Harvey (flight in the North Atlantic basin)
Mission Number: 19
Observation Number: 09
A. Time of Center Fix: 25th day of the month at 19:54:10Z
B. Center Fix Coordinates: 27°20'N 96°29'W (27.3333N 96.4833W)
B. Center Fix Location: 63 statute miles (101 km) to the ESE (117°) from Corpus Christi, TX, USA.
C. Minimum Height at Standard Level: 2,605m (8,547ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 98kts (~ 112.8mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 11 nautical miles (13 statute miles) to the SE (142°) of center fix
F. Maximum Flight Level Wind Inbound: From 234° at 112kts (From the SW at ~ 128.9mph)
G. Location of Maximum Flight Level Wind Inbound: 14 nautical miles (16 statute miles) to the SE (140°) of center fix
H. Minimum Sea Level Pressure: 942mb (27.82 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 14°C (57°F) at a pressure alt. of 3,050m (10,007ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 17°C (63°F) at a pressure alt. of 3,052m (10,013ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 15°C (59°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Closed
M. Eye Shape & Diameter: Circular with a diameter of 15 nautical miles (17 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: 700mb
O. Navigational Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 1 nautical mile

Remarks Section:
Maximum Flight Level Wind: 117kts (~ 134.6mph) which was observed 20 nautical miles (23 statute miles) to the ESE (102°) from the flight level center at 18:30:30Z
Dropsonde Surface Wind at Center: From 290° at 11kts (From the WNW at 13mph)
Maximum Flight Level Temp: 18°C (64°F) which was observed 6 nautical miles to the SE (144°) from the flight level center

[artist]

000
URNT12 KNHC 252007
VORTEX DATA MESSAGE AL092017
A. 25/19:54:10Z
B. 27 deg 20 min N
096 deg 29 min W
C. 700 mb 2605 m
D. 98 kt
E. 142 deg 11 nm
F. 234 deg 112 kt
G. 140 deg 14 nm
H. 942 mb
I. 14 C / 3050 m
J. 17 C / 3052 m
K. 15 C / NA
L. CLOSED
M. C15
N. 12345 / 7
O. 0.02 / 1 nm
P. AF307 1909A HARVEY OB 09
MAX FL WIND 117 KT 102 / 20 NM 18:30:30Z
CNTR DROPSONDE SFC WIND 290 / 11 KT
MAX FL TEMP 18 C 144 / 6 NM FROM FL CNTR
;

[galaxy401]

Just want to wish everyone in Texas the best of wishes. Looks like Harvey is make one last burst of strength. Going to be a huge mess in that area. Be careful everyone there...

[floridasun78]

good thing alot people left beach area this going worst and Wilma hope not bad as Andrew

[Garnetcat5]

just saw on twitter some guy show the euro calling for 60 inches of rain in corpus! That mod l isn't used for that is it? Omg people can get very panicked over that information

[Ntxw]

Eye is becoming extremely round, heavy convection almost completely surrounds it. Should keep ramping up.

http://weather.cod.edu/satrad/exper/?pa ... o1-13-96-1

Eye has been warming and continues so. GOES 16 better resolution has been quite a handy tool for that.

[Kazmit]

[newtotex]

just saw on twitter some guy show the euro calling for 60 inches of rain in corpus! That mod l isn't used for that is it? Omg people can get very panicked over that information

That would be awful. Especially for the Houston area. I have friends in Richmond that live on the river and I'm worried they're not taking it as seriously as they should

[AubreyStorm]

Vía Levi Cowan

2:54pm CDT recon pass into #Harvey found pressure of 942mb w/ 11kt surface winds, so possibly 941mb. Still dropping, Harvey strengthening.

[Portaransas]

If it could just jog a little more north, it would landfall on a wildlife refuge...very sparsely populated there and Port Aransas/ Rockport and Corpus would be somewhat spared at least the wind damage. Hoping for that.

[Hypercane_Kyle]

Dropsonde just picked up 113 knots at the 955mb level, practically right above the surface.