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Tropical Storm John


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Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    000

    WTPZ41 KNHC 282050

    TCDEP1

    TROPICAL STORM JOHN DISCUSSION NUMBER 2

    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006

    200 PM PDT MON AUG 28 2006

    BANDING FEATURES CONTINUE TO IMPROVE ON THIS TROPICAL CYCLONE WITH

    TAFB PROVIDING A DVORAK ESTIMATE OF 2.5 OR 35 KT AND SAB GIVING 3.0

    OR 45 KT. INITIAL INTENSITY IS A BLEND OF THE TWO AT 40 KT AND THE

    CYCLONE IS UPGRADED TO A TROPICAL STORM. TROPICAL STORM FORCE WIND

    RADII ARE UNCERTAIN...BUT ESTIMATED TO BE ABOUT 30 NMI IN THE RIGHT

    SEMICIRCLE.

    SCATTER IN THE POSITION ESTIMATES HAS DECREASED AS ALL AGENCIES ARE

    WITHIN 25 NMI OF EACH OTHER. THE CURRENT POSITION WAS CORROBORATED

    WITH A TRMM PASS AT 1456Z WITH WELL-PRONOUNCED CONVECTIVE BANDS.

    MOTION IS NOW MORE ACCURATELY ASSESSED AT 285/7...RATHER THAN THE

    NORTHWEST TRACK INDICATED IN THE PREVIOUS ADVISORY. JOHN SHOULD

    MOVE TOWARD THE WEST-NORTHWEST FOR THE NEXT 24 HOURS...THEN TURN

    TOWARD THE NORTHWEST THEREAFTER UNDER THE INFLUENCE OF A DEEP LAYER

    RIDGE CENTERED OVER NORTHWEST MEXICO. ON DAYS FOUR AND FIVE...A

    MID TO UPPER LEVEL SHORTWAVE TROUGH DIGS SOUTHWARD OFF OF SOUTHERN

    CALIFORNIA...BUT IT DOES NOT APPEAR AT THIS TIME TO HAVE A

    SIGNIFICANT IMPACT ON JOHN'S MOTION. THE TRACK FORECAST IS MOST

    SIMILAR TO THE GFS AND GFDL GUIDANCE AS BOTH THE UKMET AND NOGAPS

    DO NOT APPEAR TO HAVE ACCURATELY ANALYZED JOHN.

    ALL ENVIRONMENTAL FACTORS OVER THE NEXT FEW DAYS SUGGEST CONTINUED

    INTENSIFICATION. BECAUSE OF THESE FACTORS...THE SHIPS...GFDL AND

    FSU SUPER-ENSEMBLE INTENSITY MODELS ALL BRING THE SYSTEM UP TO A

    CATEGORY TWO HURRICANE WITHIN THREE DAYS. WHILE THE INTENSITY

    FORECAST SHOWN HERE SUGGESTS JOHN WILL BECOME A HURRICANE BY 36

    HOURS...THE NORTHEAST PACIFIC RAPID INTENSIFICATION INDEX INDICATES

    THAT JOHN MAY REACH HURRICANE INTENSITY SOONER THAN INDICATED. THE

    SYSTEM IS LIKELY TO BEGIN WEAKENING BY DAY FIVE DUE TO COOLER SSTS

    AND A MORE STABLE ATMOSPHERE. THE INTENSITY FORECAST IS MOST

    SIMILAR TO THE SHIPS AND FSU SUPER-ENSEMBLE MODELS...EXCEPT TO SHOW

    FASTER WEAKENING AT DAY FIVE.

    GIVEN THE CLOSE PROXIMITY OF JOHN'S TRACK TO THE COAST OF

    MEXICO...INTERESTS FROM ACAPULCO TO LA FORTUNA SHOULD CLOSELY

    MONITOR THE PROGRESS OF THIS SYSTEM.

    FORECAST POSITIONS AND MAX WINDS

    INITIAL 28/2100Z 13.4N 96.7W 40 KT

    12HR VT 29/0600Z 13.7N 97.9W 50 KT

    24HR VT 29/1800Z 14.1N 99.7W 60 KT

    36HR VT 30/0600Z 15.0N 101.6W 70 KT

    48HR VT 30/1800Z 16.2N 103.7W 80 KT

    72HR VT 31/1800Z 19.5N 108.5W 90 KT

    96HR VT 01/1800Z 21.5N 112.0W 85 KT

    120HR VT 02/1800Z 22.5N 114.0W 60 KT

    $$

    FORECASTER PASCH/LANDSEA

    Rapid intensification is expected, and already occuring, in the past eight hours, this system has gone from a weak Tropical Depression to Tropical Storm.

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    Posted
  • Location: Sunny Southsea
  • Location: Sunny Southsea

    Quick spot, SB! John now well-formed, projected to track along the coast and strengthen for 3-4 days. This one might be worth watching for two reasons; development was very rapid, and any shift Northward in track could put the coast, e.g. Acapulco, at risk.

    :) P

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    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    000

    WTPZ31 KNHC 291752

    TCPEP1

    BULLETIN

    HURRICANE JOHN INTERMEDIATE ADVISORY NUMBER 5A

    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006

    1100 AM PDT TUE AUG 29 2006

    ...JOHN CONTINUES TO STRENGTHEN...

    A TROPICAL STORM WARNING IS IN EFFECT ALONG THE WEST COAST OF MEXICO

    FROM ACAPULCO WESTWARD TO LAZARO CARDENAS.

    A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE

    EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS.

    A TROPICAL STORM WATCH REMAINS IN EFFECT FROM EAST OF ACAPULCO

    EASTWARD TO LAGUNAS DE CHACAHUA...AND FROM WEST OF LAZARO CARDENAS

    WESTWARD TO MANZANILLO.

    A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE

    POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS.

    FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE

    INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED

    BY YOUR LOCAL WEATHER OFFICE.

    AT 1100 AM PDT...1800Z...THE CENTER OF HURRICANE JOHN WAS LOCATED

    NEAR LATITUDE 14.3 NORTH...LONGITUDE 99.4 WEST OR ABOUT 170 MILES...

    275 KM...SOUTH OF ACAPULCO MEXICO.

    JOHN IS MOVING TOWARD THE WEST-NORTHWEST NEAR 9 MPH...15 KM/HR...AND

    THIS MOTION IS EXPECTED TO CONTINUE TODAY WITH A SLIGHT INCREASE IN

    FORWARD SPEED.

    MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 90 MPH...145 KM/HR...

    WITH HIGHER GUSTS. JOHN IS A CATEGORY ONE HURRICANE ON THE

    SAFFIR-SIMPSON HURRICANE SCALE...AND JOHN COULD BECOME A CATEGORY

    THREE HURRICANE BY WEDNESDAY.

    HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM

    THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 90

    MILES...150 KM.

    ESTIMATED MINIMUM CENTRAL PRESSURE IS 977 MB...28.64 INCHES.

    RAINFALL AMOUNTS OF 2 TO 4 INCHES...WITH ISOLATED TOTALS UP TO

    8 INCHES...ARE POSSIBLE ALONG THE SOUTH COAST OF MEXICO WITHIN

    THE TROPICAL STORM WATCH AND WARNING AREA. THESE RAINS COULD

    CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES OVER AREAS OF

    MOUNTAINOUS TERRAIN.

    REPEATING THE 1100 AM PDT POSITION...14.3 N...99.4 W. MOVEMENT

    TOWARD...WEST-NORTHWEST NEAR 9 MPH. MAXIMUM SUSTAINED WINDS...90

    MPH. MINIMUM CENTRAL PRESSURE...977 MB.

    THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT

    200 PM PDT.

    $$

    FORECASTER MAINELLI/PASCH

    000

    WTPZ41 KNHC 291500

    TCDEP1

    HURRICANE JOHN DISCUSSION NUMBER 5

    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006

    800 AM PDT TUE AUG 29 2006

    JOHN HAS CONTINUED TO INTENSIFY THIS MORNING...AND FIRST LIGHT

    VISIBLE IMAGERY SHOWS AN IMPRESSIVE BANDING FEATURE AND AN OBSCURED

    EYE FEATURE TRYING TO DEVELOP. THESE FEATURES ARE ALSO APPARENT ON

    A RECENT TRMM MICROWAVE PASS FROM 1156 UTC. DVORAK CLASSIFICATIONS

    FROM TAFB AND SAB WERE 65 KT AND 75 KT RESPECTIVELY...AND THE

    INITIAL INTENSITY IS A BLEND OF TWO AND IS SET AT 70 KT. JOHN IS

    NOW THE SIXTH HURRICANE OF THE EAST PACIFIC HURRICANE SEASON. JOHN

    IS IN A CONDUCIVE ENVIRONMENT OF LOW SHEAR AND VERY WARM WATERS FOR

    CONTINUED STRENGTHENING. THE OFFICIAL INTENSITY FORECAST TAKES

    JOHN TO A CATEGORY 3 HURRICANE IN 24 TO 36 HOURS...WHICH FOLLOWS

    CLOSELY WITH THE SHIPS...GFDL...AND FSU SUPERENSEMBLE INTENSITY

    GUIDANCE...AS WELL AS THE PREVIOUS ADVISORY. IN THE LATER

    PERIODS...THE GFDL MODEL WEAKENS JOHN SIGNIFICANTLY DUE TO THE

    PROXIMITY OF IT'S TRACK FORECAST TO LAND. THE OFFICIAL TRACK

    FORECAST MAINTAINS THE HURRICANE OVER WATER THROUGH FIVE DAYS AND

    GRADUALLY WEAKENS THE CYCLONE IN DAYS 4 AND 5 AS A RESULT OF COOLER

    WATERS.

    THE INITIAL MOTION IS 290/8...SLIGHTLY FASTER THAN BEFORE. JOHN IS

    EXPECTED TO CONTINUE ON A WEST-NORTHWEST TRACK FOR THE NEXT 3 TO 4

    DAYS WITH SOME INCREASE IN FORWARD SPEED. THE HURRICANE IS

    FORECAST TO BE STEERED ALONG THE SOUTHWESTERN PERIPHERY OF A MID-

    TO UPPER-LEVEL RIDGE BUILDING ACROSS NORTHERN MEXICO. MOST OF THE

    MODEL GUIDANCE IS IN CLOSE AGREEMENT WITH THIS SCENARIO...HOWEVER

    THE GFDL MODEL ANTICIPATES THE WESTERN EXTENT OF THE RIDGE TO BE

    FURTHER TO THE EAST ALLOWING THE HURRICANE TO MOVE CLOSER TO THE

    WEST COAST OF MEXICO AND EVENTUALLY OVER THE BAJA PENINSULA. THE

    OFFICIAL TRACK FORECAST STAYS CLOSE TO THE MODEL CONSENSUS AS WELL

    AS CLOSE TO THE PREVIOUS ADVISORY.

    AS A RESULT OF THE CONTINUED STRENGTHENING OF JOHN...THE WIND RADII

    HAVE BEEN EXPANDED. THIS HAS PROMPTED THE GOVERNMENT OF MEXICO TO

    ADJUST THE WATCHES AND WARNINGS.

    FORECAST POSITIONS AND MAX WINDS

    INITIAL 29/1500Z 14.3N 99.0W 70 KT

    12HR VT 30/0000Z 14.8N 100.4W 85 KT

    24HR VT 30/1200Z 15.6N 102.2W 95 KT

    36HR VT 31/0000Z 16.7N 104.3W 105 KT

    48HR VT 31/1200Z 18.2N 106.2W 105 KT

    72HR VT 01/1200Z 20.5N 110.0W 100 KT

    96HR VT 02/1200Z 21.0N 112.5W 85 KT

    120HR VT 03/1200Z 21.5N 115.5W 65 KT

    $$

    FORECASTER MAINELLI/PASCH

    As a pinhole eye has formed and despite only category 1 status, pressure is 977mb, therefore i would not be suprised to see a strong category 4.

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    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    000

    WTPZ41 KNHC 292057

    TCDEP1

    HURRICANE JOHN DISCUSSION NUMBER 6

    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006

    200 PM PDT TUE AUG 29 2006

    JOHN HAS UNDERGONE RAPID INTENSIFICATION TODAY AND A PINHOLE EYE IS

    NOW EVIDENT ON SATELLITE IMAGERY. 24 HOURS AGO THE CYCLONE WAS A

    40 KT TROPICAL STORM AND THE INITIAL INTENSITY FOR THIS ADVISORY IS

    SET AT 100 KT. IT SHOULD BE NOTED THAT BOTH TAFB AND SAB DVORAK

    CLASSIFICATIONS WERE LIMITED TO DATA T-NUMBERS OF 5.0 OR 90 KT DUE

    TO RESTRICTIONS IN THE TECHNIQUE...BUT RAW DATA T-NUMBERS GIVE

    ESTIMATES CLOSER TO 6.0 OR 115 KT. THERE ARE NO APPARENT

    ENVIRONMENTAL CONDITIONS WHICH SHOULD INHIBIT ADDITIONAL

    INTENSIFICATION AS INDICATED BY THE SHIPS GUIDANCE. THIS IS

    REFLECTED IN THE OFFICIAL FORECAST WHICH MAKES JOHN A CATEGORY FOUR

    HURRICANE WITHIN 12 HOURS...AND MAINTAINS JOHN AS A STRONG

    HURRICANE THROUGH 5 DAYS.

    THE INITIAL MOTION IS 290/9. A WEST-NORTHWEST TO NORTHWEST MOTION

    IS EXPECTED TO CONTINUE THROUGH 72 HOURS...AS THE HURRICANE IS

    STEERED ALONG THE SOUTHWESTERN PERIPHERY OF A MID- TO UPPER-LEVEL

    RIDGE BUILDING ACROSS NORTHERN MEXICO. BOTH THE GFDL AND FSU

    SUPERENSEMBLE GUIDANCE ARE TO THE EAST OF THE MODEL CONSENSUS AND

    STILL FORECAST THE WESTERN EXTENT OF THE RIDGE TO BE FARTHER EAST

    ALLOWING THE HURRICANE TO MOVE NORTHWESTWARD CLOSER TO THE WEST

    COAST OF MEXICO AND EVENTUALLY TOWARD THE BAJA PENINSULA. ON THE

    OTHER HAND...THE GFS AND NOGAPS MODELS ARE TO THE WEST OF THE MODEL

    CONSENSUS AND TAKE THE HURRICANE ON A MORE WEST-NORTHWEST TO WEST

    TRACK RESULTING FROM A STRONGER RIDGE TO ITS NORTH. THE OFFICIAL

    FORECAST TRACK IS SLIGHTLY NORTH OF THE PREVIOUS ADVISORY AND

    FOLLOWS THE DYNAMICAL MODEL CONSENSUS CONU CLOSELY.

    THE CONTINUED STRENGTHENING OF JOHN AND A COUPLE OF SHIP REPORTS

    HAVE RESULTED IN AN EXPANSION OF THE WIND RADII. THIS HAS PROMPTED

    THE GOVERNMENT OF MEXICO TO ADJUST THE WATCHES AND WARNINGS ONCE

    AGAIN.

    FORECAST POSITIONS AND MAX WINDS

    INITIAL 29/2100Z 14.4N 99.7W 100 KT

    12HR VT 30/0600Z 15.0N 101.1W 115 KT

    24HR VT 30/1800Z 16.0N 103.0W 120 KT

    36HR VT 31/0600Z 17.3N 104.8W 120 KT

    48HR VT 31/1800Z 18.8N 106.8W 115 KT

    72HR VT 01/1800Z 21.0N 110.5W 110 KT

    96HR VT 02/1800Z 22.0N 113.0W 100 KT

    120HR VT 03/1800Z 22.0N 116.0W 90 KT

    $$

    FORECASTER MAINELLI/PASCH

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    Posted
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet
  • Location: Leeds/Bradford border, 185 metres above sea level, around 600 feet

    000

    WTPZ41 KNHC 300853

    TCDEP1

    HURRICANE JOHN DISCUSSION NUMBER 8

    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP112006

    200 AM PDT WED AUG 30 2006

    RADAR FROM ACAPULCO MEXICO SHOWS A WELL-DEFINED EYE AND IT APPEARS

    THAT JOHN HAS GONE THROUGH AN EYE-WALL REPLACEMENT CYCLE. THIS MAY

    EXPLAIN WHY THE SATELLITE APPEARANCE HAS NOT IMPROVED MUCH SINCE

    YESTERDAY AFTERNOON...HOWEVER WITHIN THE PAST HOUR OR SO A WARM

    SPOT HAS RE-APPEARED IN INFRARED SATELLITE IMAGERY. DVORAK

    SATELLITE ESTIMATES ARE 102 KT AND 90 KT FROM TAFB AND SAB

    RESPECTIVELY AND THE INITIAL INTENSITY WILL REMAIN 100 KT FOR THIS

    ADVISORY. AN AIR FORCE HURRICANE HUNTER AIRCRAFT IS CURRENTLY

    EN-ROUTE TO JOHN AND IT SHOULD SOON PROVIDE A MUCH MORE ACCURATE

    MEASURE OF THE HURRICANE'S CURRENT STRENGTH.

    JOHN HAS BEEN MOVING BETWEEN WEST-NORTHWEST AND NORTHWEST AND THE

    ESTIMATED MOTION IS 300/10. THE GLOBAL MODELS KEEP JOHN ON THIS

    GENERAL HEADING FOR THE NEXT 36 HOURS AROUND THE SOUTHWESTERN

    PERIPHERY OF A MID- TO UPPER-LEVEL RIDGE OVER NORTHERN MEXICO. THE

    GFS REMAINS ON THE LEFT SIDE OF THE GUIDANCE ENVELOPE DUE TO ITS

    WEAKER DEPICTION OF THE CYCLONE. THE GFDL AND UKMET ARE ON THE

    RIGHT SIDE OF THE GUIDANCE AND BOTH TRACK JOHN ACROSS SOUTHWESTERN

    MEXICO IN 24-36 HOURS. OUT OF RESPECT FOR THE GFDL AND UKMET THE

    TRACK FORECAST IS AGAIN SHIFTED RIGHT OR CLOSER TO THE COAST OF

    MEXICO. EVEN THOUGH THE OFFICIAL FORECAST KEEPS THE CENTER JUST

    OFFSHORE...ANY SMALL DEVIATION TO THE RIGHT WILL BRING THE CORE OF

    THIS DANGEROUS HURRICANE OVER SOUTHWEST MEXICO. BEYOND THREE DAYS

    THERE REMAINS SIGNIFICANT DIVERGENCE IN THE MODELS AND HIGHER

    THAN NORMAL UNCERTAINTY IN THE TRACK FORECAST. AS WITH THE

    PREVIOUS ADVISORY...IT IS ASSUMED THERE WILL BE ENOUGH RIDGING

    TO THE NORTH OF JOHN TO BEND THE TRACK MORE WESTWARD AT DAYS 4

    AND 5.

    WITH LOW SHEAR AND WARM SSTS THE INTENSITY GUIDANCE CONTINUES TO

    INDICATE STRENGTHENING. BECAUSE INTENSIFICATION HAS CEASED OVER

    THE PAST 12 HOURS...PERSISTENCE HAS BECOME LESS OF A POSITIVE

    FACTOR IN THE SHIPS MODEL AND THEREFORE IT NOW KEEPS THE HURRICANE

    JUST BELOW CATEGORY FOUR STRENGTH. HOWEVER...IT IS ASSUMED THAT

    JOHN HAS JUST COMPLETED AN EYEWALL REPLACEMENT CYCLE AND

    STRENGTHENING SHOULD RESUME. THE OFFICIAL INTENSITY FORECAST WILL

    CONTINUE TO PREDICT A CATEGORY FOUR WITHIN THE NEXT 24 HOURS...

    VIRTUALLY UNCHANGED FROM THE PREVIOUS ADVISORY.

    FORECAST POSITIONS AND MAX WINDS

    INITIAL 30/0900Z 15.6N 101.3W 100 KT

    12HR VT 30/1800Z 16.5N 102.4W 110 KT

    24HR VT 31/0600Z 18.0N 104.2W 120 KT

    36HR VT 31/1800Z 19.5N 106.0W 120 KT

    48HR VT 01/0600Z 20.9N 107.7W 115 KT

    72HR VT 02/0600Z 22.2N 110.7W 105 KT

    96HR VT 03/0600Z 22.8N 114.0W 90 KT

    120HR VT 04/0600Z 23.0N 118.0W 75 KT

    $$

    FORECASTER BROWN/STEWART

    Current pressure is 962mb, expect that to drop, i personally would not rule out category 5 status.

    http://www.nrlmry.navy.mil/tcdat/tc06/EPAC...1007W.100pc.jpg

    Great pinhole eye.

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    Posted
  • Location: Taunton, Somerset
  • Weather Preferences: Snow, thunder, strong winds. HATE:stagnant weather patterns
  • Location: Taunton, Somerset

    Certainly intensified quickly this one! Could it reach cat 5 intensity?

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    Posted
  • Location: Taunton, Somerset
  • Weather Preferences: Snow, thunder, strong winds. HATE:stagnant weather patterns
  • Location: Taunton, Somerset
    I've been watching the wrong part of the world !

    You've been watching the Atlantic I guess? The Pacific has been much more interesting! :D

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    Posted
  • Location: Colchester, Essex, UK (33m ASL)
  • Location: Colchester, Essex, UK (33m ASL)

    Recon did a flight through John yesterday afternoon, Vortex Data is ...

    URPN12 KNHC 301313

    VORTEX DATA MESSAGE

    A. 30/12:53:50Z

    B. 16 deg 08 min N

    101 deg 49 min W

    C. 700 mb 2685 m

    D. NA kt

    E. NA deg nm

    F. 299 deg 087 kt

    G. 199 deg 005 nm

    H. 950 mb

    I. 11 C/ 3044 m

    J. 18 C/ 3056 m

    K. 10 C/ NA

    L. CLOSED

    M. C12

    N. 12345/ 7

    O. 0.02 / 1 nm

    P. AF309 0111E JOHN OB 14

    MAX FL WIND 107 KT SE QUAD 11:12:00 Z

    LIGHTNING ALL QUADS. GOOD RADAR PRESENTATION.

    ;

    Current estimations are.....

    HURRICANE CENTER LOCATED NEAR 17.4N 103.3W AT 30/2100Z

    POSITION ACCURATE WITHIN 20 NM

    PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 12 KT

    ESTIMATED MINIMUM CENTRAL PRESSURE 948 MB

    MAX SUSTAINED WINDS 115 KT WITH GUSTS TO 140 KT.

    Recon will be flying to Hurricane John again on the 31st (today as I post this). Take off at 12.45GMT/1.45pm BST, target vortex fix time 18.00GMT/7pm BST.

    II. PACIFIC REQUIREMENTS

    1. HURRICANE JOHN

    A. 31/1800Z

    B. AFXXX 0211E JOHN

    C. 31/1245Z

    D. 19.5N 106.0W

    E. 31/1700Z TO 31/2100Z

    F. SFC TO 10,000 FT

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    Posted
  • Location: Colchester, Essex, UK (33m ASL)
  • Location: Colchester, Essex, UK (33m ASL)

    Latest vortex messege as of 16.45GMT/5.45pm BST,

    URPN12 KNHC 011658

    VORTEX DATA MESSAGE

    A. 01/16:45:40Z

    B. 22 deg 11 min N

    108 deg 51 min W

    C. 700 mb 2737 m

    D. 40 kt

    E. 233 deg 022 nm

    F. 323 deg 085 kt

    G. 236 deg 005 nm

    H. 958 mbI. 10 C/ 3041 m

    J. 16 C/ 3053 m

    K. 11 C/ NA

    L. CLOSED

    M. C12

    N. 12345/ 7

    O. 0.02 / 1 nm

    P. AF301 0311E JOHN OB 20

    MAX FL WIND 98 KT SE QUAD 15:47:40 Z

    Nice loop of John..

    http://www.ssd.noaa.gov/goes/flt/t6/loop-ft.html

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    Posted
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield
  • Weather Preferences: Any Extreme
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield
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