Weather for the Mariner

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SSB or HF Radio• Voice Broadcasts are also located on HFfrequencies (Check Reeds Nautical Almanacfor specific HF frequencies and times ofbroadcast)• Caution: Weather information is perishable!• Weather broadcasts are good only for aSPECIFIC area at a SPECIFIC time.• Herb Hilgenberg– Begins broadcasts at 1600 EST– 12.359 MHz– Before voyage contact him by fax (905) 681-7114
Wind Warnings• Small Craft Warnings: 18 - 33 kts• A Small Craft Advisory is issued to alertoperators of small craft whenever sustainedwinds of 18 to 33 knots inclusive, and/or seasof 7 feet or greater, are either ongoing orforecasted to develop within the next 12 hours.
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Weather for the MarinerCDR Donna Se
Page 4 and 5:
Decisions Affected by Weather:Crew
Page 6 and 7:
Decisions Affected by Weather:Navig
Page 8 and 9:
Weather Tools Available On• Barom
Page 10 and 11:
Weather Tools Onboard Navy 44• Ch
Page 12 and 13:
Typical chart receivedonboard a Nav
Page 15 and 16:
Nautical Weather Sayings• Red sky
Page 17 and 18:
Marine Weather Thumb Rules• Pay a
Page 19 and 20:
Marine Weather Thumb Rules• Low a
Page 21 and 22:
Marine Weather Thumb Rules• Chang
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Air Masses• Air masses are vast b
Page 25 and 26:
Can you pick out the5 types of air
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Pressure• The Earth is alwaysthro
Page 29 and 30:
High Pressure• Air circulates aro
Page 31 and 32:
Pressure• Atmospheric pressure is
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Pressure and P`essure Trends• Wat
Page 35 and 36: Wind and Pressure• Wind is the re
Page 37 and 38: Wind and Pressure• Weather charts
Page 39 and 40: The red arrow indicates your boat
Page 41 and 42: Air Masses and Frontal Systems• W
Page 43 and 44: Cold Front• Cold Air pushes under
Page 45 and 46: Cold Front Weather Sequence• Wind
Page 47 and 48: Cold Front Weather Sequence• As f
Page 49 and 50: Microburst Sequence
Page 51 and 52: Warm Front Weather• Cirrus clouds
Page 53 and 54: Nimbostratus (Ns)Altostratus (As)Ci
Page 55: Occluded Front• Occurs when cold
Page 58 and 59: Typical chart receivedonboard a Nav
Page 60 and 61: Nautical Weather Sayings• Red sky
Page 62 and 63: Forecasting weather usingclouds•
Page 64 and 65: CloudsAltocumulus Ac(mackerel skies
Page 66 and 67: Cloudscumulus Cu (heap)
Page 68 and 69: CloudsCumulonimbus Cb
Page 70 and 71: CloudsCumulonimbus with waterspout
Page 72 and 73: Red Sky at NightSailor’s Delight
Page 74 and 75: “Mackerel Skies and Mare’s Tail
Page 76 and 77: USN Official Use Only ResourcesNava
Page 78 and 79: Location of NOAA Buoys
Page 80 and 81: Location of NOAA Buoys
Page 82: Location of NOAA Buoys
Page 88 and 89: Wind WarningsGale Warnings: 34 - 47
Page 90 and 91: Hurricane Warnings• Definite Clos
Page 92 and 93: Hurricanes and Tropical Storms• A
Page 94 and 95: Onboard Weather ChartsHF Facsimile
Page 96 and 97: Weather Charts• Weather Charts ca
Page 98 and 99: Weather Chart Symbols
Page 100 and 101: Weather Charts and Symbols• Surfa
Page 102 and 103: Deciphering Wind Barbs• Wind barb
Page 104 and 105: Deciphering Wind BarbsWhat is the d
Page 106: Weather Chart Symbols
Page 109: Surface Forecast Charts for 24 hr 4
Page 112 and 113: Remember what the bold 564 isoheigh
Page 114 and 115: Upper Level Weather Charts• Upper
Page 116 and 117: 5640 isoheight (bold line) shows th
Page 118: Why is Sea State Important?• Beca
Page 123 and 124: Remember what the bold 564 isoheigh
Page 125: Questions???
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