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Hurricane Arthur


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01030 3406N 07712W 6969 02913 9764 +120 -045 144014 016 027 003 00
001100 3404N 07711W 6969 02909 9762 +120 -112 177015 016 025 003 00
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001830 3350N 07646W 6962 03038 9969 +057 -065 216086 088 070 018 00
001900 3349N 07644W 6968 03040 9977 +062 -097 218083 084 068 011 03
001930 3348N 07643W 6964 03053 9996 +054 -075 217085 089 066 014 00
002000 3347N 07641W 6966 03058 0001 +054 -072 215088 089 066 017 00
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That pass does not support cat 2. nothing above 79 kt at the surface so far

 

SFMR provides a singular data set to utilize in determining the maximum sustained winds. However, a holistic approach which considers all the available data must be considered in performing the final analysis of intensity. Just because the SFMR tool did not capture 83kt winds does not mean they do not exist. 

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Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 4th day of the month at 00:35Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 304)
Storm Number & Year: 01L in 2014
Storm Name: Arthur (flight in the North Atlantic basin)
Mission Number: 14
Observation Number: 04
A. Time of Center Fix: 4th day of the month at 0:08:10Z
B. Center Fix Coordinates: 34°03'N 77°17'W (34.05N 77.2833W)
B. Center Fix Location: 38 miles (61 km) to the ESE (108°) from Wilmington, NC, USA.
C. Minimum Height at Standard Level: 2,884m (9,462ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 65kts (~ 74.8mph)
E. Location of the Estimated Maximum Surface Wind: 21 nautical miles (24 statute miles) to the SSW (213°) of center fix
F. Maximum Flight Level Wind Inbound: From 295° at 72kts (From the WNW at ~ 82.9mph)
G. Location of Maximum Flight Level Wind Inbound: 17 nautical miles (20 statute miles) to the SSW (209°) of center fix
H. Minimum Sea Level Pressure: 976mb (28.82 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 11°C (52°F) at a pressure alt. of 3,050m (10,007ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 13°C (55°F) at a pressure alt. of 3,053m (10,016ft)
K. Dewpoint Temp & Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Open in the west
M. Eye Shape: Elliptical (oval shaped)
M. Orientation of Major Axis in Elliptical Eye: 330° to 150° (NNW to SSE)
M. Length of Major Axis in Elliptical Eye: 24 nautical miles (28 statute miles)
M. Length of Minor Axis in Elliptical Eye: 16 nautical miles (18 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: 2 nautical miles
Remarks Section:
Maximum Outbound and Flight Level Wind: 94kts (~ 108.2mph) which was observed 24 nautical miles (28 statute miles) to the ESE (110°) from the flight level center at 0:17:10Z
DropsondeSurface Wind at Center: From 150° at 8kts (From the SSE at 9mph)

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With those obs, the rate of intensification, and the improving presentation, I would say it would be safe for the NHC to put Arthur at 95 MPH at 9 PM.

95 mph does not exist now because it does not have an appropriate knots-to-mph conversion. 80kt is 90 mph and 85kt is 100 mph, so it'll be one of those two.

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95 mph does not exist now because it does not have an appropriate knots-to-mph conversion. 80kt is 90 mph and 85kt is 100 mph, so it'll be one of those two.

 

I'm well aware of that, but 95 MPH is used in intermediate advisories since those are in MPH and not KT.  They are mainly used when the NHC is sure of an continued trend in intensification to the next full advisory and/or landfall is imminent.

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I'm well aware of that, but 95 MPH is used in intermediate advisories since those are in MPH and not KT.  They are mainly used when the NHC is sure of an continued trend in intensification to the next full advisory and/or landfall is imminent.

Didn't know that...thanks for the info.

 

Dropsonde in the eastern eyewall:

 

Level Wind Direction Wind Speed

989mb (Surface) 160° (from the SSE) 80 knots (92 mph)

981mb 160° (from the SSE) 84 knots (97 mph)

974mb 165° (from the SSE) 83 knots (96 mph)

967mb 165° (from the SSE) 93 knots (107 mph)

959mb 180° (from the S) 100 knots (115 mph)

955mb 180° (from the S) 98 knots (113 mph)

950mb 175° (from the S) 105 knots (121 mph)

942mb 175° (from the S) 105 knots (121 mph)

934mb 185° (from the S) 115 knots (132 mph)

927mb 180° (from the S) 105 knots (121 mph)

918mb 185° (from the S) 106 knots (122 mph)

908mb 190° (from the S) 95 knots (109 mph)

891mb 200° (from the SSW) 101 knots (116 mph)

850mb 205° (from the SSW) 97 knots (112 mph)

697mb 215° (from the SW) 89 knots (102 mph)

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BULLETIN

HURRICANE ARTHUR INTERMEDIATE ADVISORY NUMBER 12B

NWS NATIONAL HURRICANE CENTER MIAMI FL AL012014

900 PM EDT THU JUL 03 2014

...ARTHUR BECOMES A CATEGORY TWO HURRICANE...

SUMMARY OF 900 PM EDT...0100 UTC...INFORMATION

----------------------------------------------

LOCATION...34.2N 77.1W

ABOUT 55 MI...90 KM ENE OF CAPE FEAR NORTH CAROLINA

ABOUT 110 MI...165 KM SW OF CAPE HATTERAS NORTH CAROLINA

MAXIMUM SUSTAINED WINDS...100 MPH...160 KM/H

PRESENT MOVEMENT...NNE OR 30 DEGREES AT 15 MPH...24 KM/H

MINIMUM CENTRAL PRESSURE...976 MB...28.82 INCHES

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Pretty big win IRT the NHC forecast and then the cone all the way back to when a embryo Arthur was sinking south and east initially.

 

SOLID

he definitely outperformed my expectations. I honestly didn't know if he was even going to make it out of sub-tropical status. But Arthur is looking quite healthy right now. hate to see what the numbers at HSE are tonight, as well as in the gulf of Maine and near Halifax down the line. heck, this storm may go right over the MHX radar site, given the current track. have to admit though, it would be the first time the eye of a hurricane would go directly over the radar site in my memory (as most of them i remember would slide just a few miles to either side, please correct me if I'm wrong). it would be like the tornado going within the cone of silence down in Jackson MS earlier this year.

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Arthur has rapidly filtered out the dry air on radar over the past hour. Looks like we'll have an intensifying system up till landfall. Anyone know of any good streaming coverage from local stations?

WRAL in Raleigh is covering right now, but for tornado warnings. WNCT and WITN in Greenviller should be streaming right now.

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We're streaming WNCT, Greenville, NC, here: http://www.wrbl.com/category/258132/livestream9

 

It wont be to bad here unless it goes more or less due north from its current location as far as direct impact from the center goes but I haven't seen so many couplets being spawned from a storm in quite some time there has to be 6-7 of them in the band north of the river....

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Beaufort already gusting over 50 mph if this slight north trend continues then the eastern end of Emerald Isle and the OBX are going to have a rough 4-5 hrs coming up....

Emerald Isle is a town on the western side of the island. The island itself is called Bogue Banks. Emerald Isle is likely seeing their worst conditions over the next couple hours.

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We're streaming WNCT, Greenville, NC, here: http://www.wrbl.com/category/258132/livestream9

 

This is absolutely atrocious coverage.  The meteorologist just showed a graphic that he said was made some time ago but "still accurate" that shows predicted winds for Morehead City/Beaufort to be 25-45 mph, gusting 50-55 mph.  It looks like it was painted when this thing was still predicted to go offshore!  It didn't even give Hatteras hurricane-force winds!

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