ATL: GORDON - Post-Tropical

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Re: ATL: GORDON - Recon

#1761 Postby artist » Tue Sep 04, 2018 10:57 pm

811
URNT12 KWBC 050344
VORTEX DATA MESSAGE AL072018
A. 05/03:13:27Z
B. 30.29 deg N 088.45 deg W
C. 700 MB 3101 m
D. EXTRAP 996 mb
E. NA
F. NA
G. NA
H. NA
I. NA
J. 280 deg 35 kt
K. 190 deg 8 nm 03:11:25Z
L. 42 kt
M. 108 deg 55 nm 03:28:57Z
N. 201 deg 58 kt
O. 095 deg 11 nm 03:17:27Z
P. 14 C / 3059 m
Q. 16 C / 3068 m
R. 7 C / NA
S. 12345 / 7
T. 0.01 / 1 nm
U. NOAA2 0607A GORDON OB 28
SLP EXTRAP FROM 700 MB
MAX FL WIND 63 KT 053 / 18 NM 01:03:41Z
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Re: ATL: GORDON - Tropical Storm - Discussion

#1762 Postby tolakram » Tue Sep 04, 2018 11:04 pm

saved landfall loop
Image
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Re: ATL: GORDON - Tropical Storm - Discussion

#1763 Postby Janie2006 » Tue Sep 04, 2018 11:09 pm

KMOB reports an east wind at 33 mph with gusts well into the 40s in West Mobile. My own personal sensible wx verifies this.
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Re: ATL: GORDON - Tropical Storm - Discussion

#1764 Postby wxman57 » Wed Sep 05, 2018 4:51 am

It moved inland a little toward the Alabama side of the MS/AL border, directly between Pascagoula (PQL) and Mobile (MOB) weather stations. Both were hit by the strongest squalls. Pascagoula's peak observed sustained wind was 33 kts, Mobile 34 kts. Looks like Dauphin Island, which went through the strongest squalls in a marine environment had 54 kts (62 mph). This was not a hurricane.

KPQL 050306Z AUTO 02033G49KT 1SM +TSRA BR VV013 23/21 A2973 RMK AO2 PK WND 02049/0305 TSB00 PRESFR P0028 T02280211

KMOB 050427Z AUTO 12034G45KT 10SM -RA FEW007 OVC014 25/ A2982 RMK AO2 PK WND 11045/0427 WSHFT 0350 P0044
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Re: ATL: GORDON - Advisories

#1765 Postby cycloneye » Wed Sep 05, 2018 6:45 am

BULLETIN
Tropical Depression Gordon Intermediate Advisory Number 12A
NWS National Hurricane Center Miami FL AL072018
700 AM CDT Wed Sep 05 2018

...GORDON WEAKENS TO A DEPRESSION OVER CENTRAL MISSISSIPPI...
...THREAT OF HEAVY RAINS AND FLOODING CONTINUES...


SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...32.0N 89.9W
ABOUT 25 MI...40 KM SSE OF JACKSON MISSISSIPPI
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES
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Re: ATL: GORDON - Tropical Depression - Discussion

#1766 Postby wx98 » Wed Sep 05, 2018 6:51 am

The west side definitely faired well, don’t even think it rained in New Orleans.
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Re: ATL: GORDON - Tropical Depression - Discussion

#1767 Postby wx98 » Wed Sep 05, 2018 6:52 am

Also down to a depression moving over Jackson, MS.
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Re: ATL: GORDON - Tropical Depression - Discussion

#1768 Postby Shell Mound » Wed Sep 05, 2018 7:32 am

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Re: ATL: GORDON - Tropical Depression - Discussion

#1769 Postby wxman57 » Wed Sep 05, 2018 8:20 am

NWS just put out a map of the highest observed wind gusts (not 1-min sustained wind) from Gordon. Winds are in mph. Dauphin Island got the prize for the highest gust (and sustained wind, as far as I could find) of 72 mph. The station reported a peak sustained wind of 62 mph. Gordon was clearly a moderate TS at landfall near the MS/AL border.

Image
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Re: ATL: GORDON - Tropical Depression - Discussion

#1770 Postby Jag95 » Wed Sep 05, 2018 9:21 am

It looks like Pensacola is going to be the sweet spot for the training thunderstorms coming in off the Gulf. 10 inches and counting at the airport.
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Re: ATL: GORDON - Advisories

#1771 Postby cycloneye » Wed Sep 05, 2018 10:00 am

BULLETIN
Tropical Depression Gordon Advisory Number 13
NWS National Hurricane Center Miami FL AL072018
1000 AM CDT Wed Sep 05 2018

...GORDON CONTINUES TO WEAKEN OVER CENTRAL MISSISSIPPI...
...THREAT OF HEAVY RAINS AND FLOODING WILL CONTINUE FOR SEVERAL
DAYS...


SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...32.3N 90.2W
ABOUT 5 MI...10 KM W OF JACKSON MISSISSIPPI
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

For more information on Gordon, please see products issued by your
local National Weather Service office.


DISCUSSION AND OUTLOOK
----------------------
At 1000 AM CDT (1500 UTC), the center of Tropical Depression Gordon
was located near latitude 32.3 North, longitude 90.2 West. The
depression is moving toward the northwest near 14 mph (22 km/h). A
northwestward motion with a decrease in forward speed is expected
over the next couple of days. On the forecast track, the center of
Gordon will move across the lower Mississippi Valley today and
tonight. A turn toward the north-northwest and north is forecast to
occur on Friday.

Maximum sustained winds have decreased to near 30 mph (45 km/h) with
higher gusts. Additional weakening is expected as Gordon moves
farther inland. Jackson, Mississippi, recently reported a wind gust
of 35 mph (55 km/h).

The estimated minimum central pressure is 1008 mb (29.77 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: Gordon is expected to produce total rain accumulations of
4 to 8 inches over the western Florida Panhandle, southwest Alabama,
central Mississippi, Arkansas, Missouri, southern Iowa and Illinois,
with isolated maximum amounts of 12 inches through early Saturday.
This rainfall will cause flash flooding across portions of these
areas.

WIND: Wind gusts to tropical storm force could occur in showers
and thunderstorms associated with Gordon today.

TORNADOES: A tornado or two is possible through this evening over
Mississippi and western Alabama.

STORM SURGE: Water levels along the northern Gulf of Mexico coast
will gradually subside later today.


NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Gordon. Future information on Gordon can be found in
Public Advisories issued by the Weather Prediction Center beginning
at 4 PM CDT, under AWIPS header TCPAT2, WMO header WTNT32 KWNH, and
on the web at https://www.wpc.ncep.noaa.gov.

$$
Forecaster Beven
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Re: ATL: GORDON - Tropical Depression - Discussion

#1772 Postby EquusStorm » Wed Sep 05, 2018 10:15 am

To be fair Nate had pitiful wind gusts upon its landfall too but at least it was almost sort of structurally decent. Would have been neat to rack up an official hurricane landfall but it's rained more than I thought here with the passage of the easternmost bands so I'm happy with few complaints
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...but still, though, a lot more interesting than the 2013 season.

Not a meteorologist, in fact more of an idiot than anything. You should probably check with the NHC or a local NWS office for official information.

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Re: ATL: GORDON - Tropical Depression - Discussion

#1773 Postby hohnywx » Wed Sep 05, 2018 10:23 am

wxman57 wrote:NWS just put out a map of the highest observed wind gusts (not 1-min sustained wind) from Gordon. Winds are in mph. Dauphin Island got the prize for the highest gust (and sustained wind, as far as I could find) of 72 mph. The station reported a peak sustained wind of 62 mph. Gordon was clearly a moderate TS at landfall near the MS/AL border.

Image


And clearly stronger than a 45 kt storm.
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Re: ATL: GORDON - Tropical Depression - Discussion

#1774 Postby EquusStorm » Wed Sep 05, 2018 10:46 am

Digital STP from KMOB so far from Radarscope, with a max of just over 9" just north of Pensacola; lopsided way east of all estimates. Very little precip remains around the actual center; nearly all of it is in a band over AL and the western FL panhandle. Most estimates had flooding rain in a band across central MS and relatively little in FL/AL, but here we are. Tropical meteorology is rarely easy

Image
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...but still, though, a lot more interesting than the 2013 season.

Not a meteorologist, in fact more of an idiot than anything. You should probably check with the NHC or a local NWS office for official information.

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Re: ATL: GORDON - Advisories

#1775 Postby cycloneye » Wed Sep 05, 2018 4:01 pm

BULLETIN
Tropical Depression Gordon Advisory Number 14
NWS Weather Prediction Center College Park MD AL072018
400 PM CDT Wed Sep 05 2018

...GORDON CONTINUES TO WEAKEN OVER CENTRAL MISSISSIPPI...
...THREAT OF HEAVY RAINS AND FLOODING WILL CONTINUE FOR SEVERAL
DAYS...


SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...32.8N 90.7W
ABOUT 45 MI...75 KM NW OF JACKSON MISSISSIPPI
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1012 MB...29.89 INCHES


WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect over portions of
Alabama, Mississippi, and Arkansas

There are no coastal watches or warnings in effect.

For more information on Gordon, please see products issued by your
local National Weather Service office.


DISCUSSION AND OUTLOOK
----------------------
At 400 PM CDT (2100 UTC), the center of Tropical Depression Gordon
was located near latitude 32.8 North, longitude 90.7 West. The
depression is moving toward the northwest near 9 mph (15 km/h) and
this motion is expected to continue tonight.

Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.
Weakening is forecast during the next 48 hours. Gordon will
eventually merge with a front across the Midwest and become
extratropical.

The estimated minimum central pressure is 1012 mb (29.89 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: Gordon is expected to produce total rain accumulations of
4 to 8 inches over the western Florida Panhandle, southwest Alabama,
central Mississippi, Arkansas, Missouri, southern Iowa and Illinois,
with isolated maximum amounts of 12 inches through early Saturday.
This rainfall will cause flash flooding across portions of these
areas.

WIND: Wind gusts to tropical storm force could occur in showers
and thunderstorms associated with Gordon over the next few hours.

TORNADOES: A tornado or two is possible through this evening over
Mississippi and western Alabama.


NEXT ADVISORY
-------------
Next complete advisory at 1000 PM CDT.

$$
Forecaster Bann/Carbin

FORECAST POSITIONS AND MAX WINDS

INIT 05/2100Z 32.8N 90.7W 25 KT 30 MPH
12H 06/0600Z 33.4N 91.5W 20 KT 25 MPH...INLAND
24H 06/1800Z 34.0N 92.5W 15 KT 15 MPH...INLAND
36H 07/0600Z 34.5N 93.3W 15 KT 15 MPH...INLAND
48H 07/1800Z 35.5N 93.9W 15 KT 15 MPH...POST-TROP/REMNT LOW
72H 08/1800Z 37.6N 92.4W 15 KT 15 MPH...POST-TROP/EXTRATROP
96H 09/1800Z 39.6N 89.8W 15 KT 15 MPH...POST-TROP/EXTRATROP
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Re: ATL: GORDON - Tropical Depression - Discussion

#1776 Postby MississippiWx » Wed Sep 05, 2018 4:50 pm

The center went east of me which was a huge surprise. It didn't go very far east though-only 15 miles or so. Yet, our peak wind gust of 33mph was in a squall that came through 6-10 hours before the center. We were supposed to receive at least 3-6 inches of rain. The only rain we received was in said squall. Gordon proved very difficult to forecast for the NHC.
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Re: ATL: GORDON - Advisories

#1777 Postby cycloneye » Wed Sep 05, 2018 9:53 pm

BULLETIN
Tropical Depression Gordon Advisory Number 15
NWS Weather Prediction Center College Park MD AL072018
1000 PM CDT Wed Sep 05 2018

...GORDON CONTINUES TO WEAKEN OVER WESTERN MISSISSIPPI...
...THREAT OF HEAVY RAINS AND FLOODING WILL CONTINUE FOR SEVERAL
DAYS...


SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...33.2N 91.0W
ABOUT 80 MI...125 KM NW OF JACKSON MISSISSIPPI
MAXIMUM SUSTAINED WINDS...25 MPH...40 KM/H
PRESENT MOVEMENT...NNW OR 330 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...1013 MB...29.92 INCHES


WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect over portions of Mississippi,
northeast Louisiana, and Arkansas.

There are no coastal watches or warnings in effect.

For more information on Gordon, please see products issued by your
local National Weather Service office.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.


DISCUSSION AND OUTLOOK
----------------------
At 1000 PM CDT (0300 UTC), the center of Tropical Depression Gordon
was located near latitude 33.2 North, longitude 91.0 West. The
depression is moving toward the north-northwest near 8 mph (13 km/h)
and this motion is expected to is expected to continue overnight.

Maximum sustained winds are near 25 mph (40 km/h) with higher
gusts. Some weakening is forecast during the next 48 hours.

The estimated minimum central pressure is 1013 mb (29.92 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: Gordon is expected to produce total rain accumulations of
2 to 4 inches over portions of western Mississippi, southern and
western Arkansas, and from western to northern Missouri into
adjacent parts of Illinois with isolated maximum amounts of 6 inches
through early Saturday. This rainfall will cause flash flooding
across portions of these areas.

For more information on rainfall totals please see the Storm Summary
available at www.wpc.ncep.noaa.gov/discussions/nfdscc2.html

WIND: Wind gusts to tropical storm force may occur in showers
and thunderstorms associated with Gordon overnight.



NEXT ADVISORY
-------------
Next complete advisory at 400 AM CDT.

$$
Forecaster Hayes/Gallina/Rausch

FORECAST POSITIONS AND MAX WINDS

INIT 06/0300Z 33.2N 91.0W 20 KT 25 MPH...INLAND
12H 06/1200Z 34.0N 91.6W 20 KT 25 MPH...INLAND
24H 07/0000Z 33.8N 92.8W 15 KT 15 MPH...INLAND
36H 07/1200Z 34.3N 93.6W 15 KT 15 MPH...INLAND
48H 08/0000Z 35.3N 93.9W 15 KT 15 MPH...POST-TROP/REMNT LOW
72H 09/0000Z 37.2N 92.2W 15 KT 15 MPH...POST-TROP/EXTRATROP
96H 10/0000Z 39.9N 88.7W 20 KT 25 MPH...POST-TROP/EXTRATROP
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Re: ATL: GORDON - Tropical Storm - Discussion

#1778 Postby Audrey2Katrina » Thu Sep 06, 2018 12:00 am

wxman57 wrote:It moved inland a little toward the Alabama side of the MS/AL border, directly between Pascagoula (PQL) and Mobile (MOB) weather stations. Both were hit by the strongest squalls. Pascagoula's peak observed sustained wind was 33 kts, Mobile 34 kts. Looks like Dauphin Island, which went through the strongest squalls in a marine environment had 54 kts (62 mph). This was not a hurricane.

KPQL 050306Z AUTO 02033G49KT 1SM +TSRA BR VV013 23/21 A2973 RMK AO2 PK WND 02049/0305 TSB00 PRESFR P0028 T02280211

KMOB 050427Z AUTO 12034G45KT 10SM -RA FEW007 OVC014 25/ A2982 RMK AO2 PK WND 11045/0427 WSHFT 0350 P0044


I watched it on three different radar shots and completely agree with you on this, and I realize that the thing had a really weird and wobbly eye--if that's what they call it, and it's a bit of splitting hairs; but they all seem to show a clear CoC moving across on the E side of the Ms/AL state line in Alabama. All reports now say it made landfall in MS... and that's how the record will show it; but I still say it made landfall in AL.
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Re: ATL: GORDON - Advisories

#1779 Postby cycloneye » Thu Sep 06, 2018 4:22 am

BULLETIN
Tropical Depression Gordon Advisory Number 16
NWS Weather Prediction Center College Park MD AL072018
400 AM CDT Thu Sep 06 2018

...GORDON CONTINUES TO DRIFT THROUGH WESTERN MISSISSIPPI...
...THREAT OF HEAVY RAINS AND FLOODING WILL CONTINUE FOR SEVERAL
DAYS...


SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...33.7N 91.3W
ABOUT 115 MI...185 KM NNW OF JACKSON MISSISSIPPI
MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H
PRESENT MOVEMENT...WNW OR 287 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...1015 MB...29.98 INCHES


WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect over portions of Mississippi
and Arkansas.

There are no coastal watches or warnings in effect.

For more information on Gordon, please see products issued by your
local National Weather Service office.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.


DISCUSSION AND OUTLOOK
----------------------
At 400 AM CDT (0900 UTC), Tropical Depression Gordon was located
near latitude 33.7 North, longitude 91.3 West. The depression is
moving toward the west-northwest near 8 mph (13 km/h) and this
motion is expected to continue today.

Maximum sustained winds are near 25 mph (35 km/h) with higher gusts.
Little change in strength is forecast during the next 48 hours.

The estimated minimum central pressure is 1015 mb (29.98 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: Gordon is expected to produce total rain accumulations of
3 to 7 inches over northwest Mississippi and much of Arkansas, up
into the Midwest, with possible isolated maximum amounts of 10
inches through Saturday night. This rainfall will likely cause local
flooding and flash flooding.



For more information on rainfall totals please see the Storm Summary
available at www.wpc.ncep.noaa.gov/discussions/nfdscc2.html

NEXT ADVISORY
-------------
Next complete advisory at 1000 AM CDT.

$$
Forecaster Hayes/Gallina/Campbell

FORECAST POSITIONS AND MAX WINDS

INIT 06/0900Z 33.7N 91.3W 20 KT 25 MPH...INLAND
12H 06/1800Z 33.9N 92.4W 20 KT 25 MPH...INLAND
24H 07/0600Z 34.0N 93.5W 20 KT 25 MPH...INLAND
36H 07/1800Z 34.1N 93.8W 20 KT 25 MPH...INLAND
48H 08/0600Z 34.9N 94.2W 20 KT 25 MPH...POST-TROP/REMNT LOW
72H 09/0600Z 38.1N 90.6W 20 KT 25 MPH...POST-TROP/EXTRATROP
96H 10/0600Z 42.1N 84.6W 20 KT 25 MPH...POST-TROP/EXTRATROP
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Re: ATL: GORDON - Advisories

#1780 Postby cycloneye » Thu Sep 06, 2018 10:15 am

BULLETIN
Tropical Depression Gordon Advisory Number 17
NWS National Hurricane Center Miami FL AL072018
Issued by the NWS Weather Prediction Center College Park MD
1000 AM CDT Thu Sep 06 2018

...GORDON CONTINUES TO DRIFT THROUGH SOUTHEASTERN ARKANSAS...


SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...34.3N 91.2W
ABOUT 80 MI...125 KM SSE OF LITTLE ROCK ARKANSAS
MAXIMUM SUSTAINED WINDS...10 MPH...20 KM/H
PRESENT MOVEMENT...NNW OR 340 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...1014 MB...29.95 INCHES


WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect over portions of Mississippi
and Arkansas.

There are no coastal watches or warnings in effect.

For more information on Gordon, please see products issued by your
local National Weather Service office.


DISCUSSION AND OUTLOOK
----------------------
At 1000 AM CDT (1500 UTC), the center of Tropical Depression Gordon
was located near latitude 34.3 North, longitude 91.2 West. The
depression is moving toward the north-northwest near 5 mph (7 km/h)
and this motion is expected to continue through Friday.

Maximum sustained winds are near 10 mph (20 km/h) with higher gusts.
Little change in strength is forecast during the next 48 hours.

The estimated minimum central pressure is 1014 mb (29.95 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: Gordon is expected to produce total rain accumulations of
3 to 7 inches over northwest Mississippi and much of Arkansas, up
into the Midwest, with possible isolated maximum amounts of 10
inches through Saturday night. This rainfall will likely cause local
flooding and flash flooding.


For more information on rainfall totals please see the Storm Summary
available at www.wpc.ncep.noaa.gov/discussions/nfdscc2.html

NEXT ADVISORY
-------------
Next complete advisory at 400 PM CDT.

$$
Oravec/Carbin/Hurley

FORECAST POSITIONS AND MAX WINDS

INIT 06/1500Z 34.3N 91.2W 10 KT 10 MPH
12H 07/0000Z 34.7N 91.7W 10 KT 10 MPH...INLAND
24H 07/1200Z 35.5N 92.3W 10 KT 10 MPH...INLAND
36H 08/0000Z 36.3N 92.3W 10 KT 10 MPH...INLAND
48H 08/1200Z 37.3N 91.9W 10 KT 10 MPH...POST-TROP/REMNT LOW
72H 09/1200Z 38.0N 88.0W 15 KT 15 MPH...POST-TROP/EXTRATROP
96H 10/1200Z 42.5N 83.8W 20 KT 25 MPH...POST-TROP/EXTRATROP
120H 11/1200Z 45.2N 77.2W 20 KT 25 MPH...POST-TROP/EXTRATROP
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