Tropical Major Hurricane Laura

[BufordWX]

Dang, the SPC went up to an enhanced risk for Louisiana in the day 1 update. Driven by 10% tornado probabilities.

 

[jackendrickwx]

945.4mb on the latest recon, we'll get the NE eyewall data soon
EDIT: this was with 54kt sfmr winds

 

[Tarheel1]

Didn’t Andrew intensify right up till landfall? I know it was initially rated a Cat 4, but then upgraded to a Cat 5. The damage from that was ridiculous!

 

[snowlover91]

Cloud tops rapidly cooling, getting that donut look which you typically see in high end cat 4 to cat 5 storms.

 

[Snowfan]

858
URNT15 KNHC 262011
AF307 2313A LAURA HDOB 34 20200826
200130 2736N 09245W 6971 02684 9440 +193 +102 284014 027 030 001 03
200200 2738N 09244W 6955 02699 9445 +183 +096 293003 008 025 002 00
200230 2738N 09244W 6955 02699 9440 +188 +087 037005 010 024 002 00
200300 2742N 09244W 6983 02673 9446 +187 +093 078010 012 024 001 03
200330 2743N 09242W 6960 02697 9449 +178 +096 095015 017 023 000 00
200400 2744N 09241W 6957 02697 9442 +184 +094 107018 021 022 001 03
200430 2745N 09240W 6967 02684 9446 +179 +094 115020 022 026 001 00
200500 2747N 09238W 6966 02686 9448 +175 +099 106021 023 024 000 00
200530 2748N 09237W 6967 02681 9432 +189 +103 115029 031 029 002 00
200600 2749N 09235W 6962 02686 9437 +181 +120 125037 044 043 003 00
200630 2750N 09234W 6966 02691 9455 +170 +132 126059 065 067 004 00
200700 2751N 09233W 6974 02694 9475 +160 +137 128078 084 098 003 00
200730 2752N 09232W 6957 02738 //// +146 //// 127093 101 113 005 01
200800 2753N 09230W 6962 02750 9566 +149 //// 127109 114 117 006 01
200830 2754N 09229W 6978 02761 9611 +147 +147 127126 127 118 037 00
200900 2755N 09228W 6953 02815 9652 +131 +131 131132 136 113 050 00
200930 2756N 09227W 6961 02841 9687 +128 +128 133132 133 113 049 00
201000 2757N 09226W 6970 02852 9707 +131 +131 133130 133 106 021 00
201030 2758N 09225W 6971 02875 9747 +126 +126 135128 130 102 019 00
201100 2759N 09224W 6969 02901 9764 +123 +123 136124 127 098 016 00

Flight-level winds of 136 knots, and SFMR winds up to 118 kts found and pressure down to 943.2 mb.

 

[snowlover91]

Here's another look via visible. This is not good folks, this is 145+ type structure here.

 

[ajr]

Looks like 943-945mb...

00100 2735N 09246W 6962 02697 9454 +175 +132 303035 055 054 004 00
200130 2736N 09245W 6971 02684 9440 +193 +102 284014 027 030 001 03
200200 2738N 09244W 6955 02699 9445 +183 +096 293003 008 025 002 00
200230 2738N 09244W 6955 02699 9440 +188 +087 037005 010 024 002 00
200300 2742N 09244W 6983 02673 9446 +187 +093 078010 012 024 001 03
200330 2743N 09242W 6960 02697 9449 +178 +096 095015 017 023 000 00
200400 2744N 09241W 6957 02697 9442 +184 +094 107018 021 022 001 03
200430 2745N 09240W 6967 02684 9446 +179 +094 115020 022 026 001 00
200500 2747N 09238W 6966 02686 9448 +175 +099 106021 023 024 000 00
200530 2748N 09237W 6967 02681 9432 +189 +103 115029 031 029 002 00
200600 2749N 09235W 6962 02686 9437 +181 +120 125037 044 043 003 00
200630 2750N 09234W 6966 02691 9455 +170 +132 126059 065 067 004 00

 

[jackendrickwx]

Flight-level winds of 136 knots, and SFMR winds up to 118 kts found and pressure down to 943.2 mb.

Well, at least no strengthening since the last pass (knock on wood)

 

[Chazwin]

Didn’t Andrew intensify right up till landfall? I know it was initially rated a Cat 4, but then upgraded to a Cat 5. The damage from that was ridiculous!

Yes... it weakened slightly and the pressure came up as it crossed the Bahamas, but then as the eye was over water, the pressure dropped again and it strengthened right up to landfall

 

[Henry2326]

18z NAM.....921

 

[ajr]

 

[Snowfan]

 

[BirdManDoomW]

 

[ForsythSnow]

Those are some winds. Still intensifying.

 

[Philstorm91]

Waiting for the first band to come through

 

[tramadoc]

Those are some winds. Still intensifying.

At least we’re not living at 900mb

 

[ForsythSnow]

At least we’re not living at 900mb

Lol that's for sure. However the thing to pay attention to is the mean wind in the lowest 150M. 130 knots should mean we see 155 or 150 at the next advisory.

 

[Darklordsuperstorm]

 

[Snowfan]

BULLETIN
Hurricane Laura Advisory Number 28
NWS National Hurricane Center Miami FL AL132020
400 PM CDT Wed Aug 26 2020

...WIND AND WATER LEVELS INCREASING AS EXTREMELY DANGEROUS
HURRICANE LAURA TAKES AIM AT THE NORTHWEST GULF COAST...
...CATASTROPHIC STORM SURGE, EXTREME WINDS, AND FLASH FLOODING
EXPECTED ALONG THE NORTHWEST GULF COAST TONIGHT...


SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...27.9N 92.8W
ABOUT 155 MI...250 KM S OF LAKE CHARLES LOUISIANA
ABOUT 155 MI...250 KM SSE OF PORT ARTHUR TEXAS
MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...947 MB...27.97 INCHES

Winds have increased to 145 mph and pressure down to 947 mb. Now forecasted to peak at 150 mph.

 

[Brent]

145 mph