β¨ Meteorological Reports
NEW ZEALAND GAZETTE
No. 222
METEOROLOGICAL REPORTS
17 OCTOBER
Isobaric Chart for 9 AM.
- L Low Pressure
- H High Pressure
- Isobars at intervals of 2 millibars.
18 OCTOBER
Isobaric Chart for 9 AM.
Observations:
- Areas marked H (High Pressure) and L (Low Pressure).
- Wind directions and velocities indicated by arrows.
19 OCTOBER
Isobaric Chart for 9 AM.
Observations:
- Presence of Highs and Lows with specific isobar readings.
20 OCTOBER
Isobaric Chart for 9 AM.
21 OCTOBER
Isobaric Chart for 9 AM.
Observations:
- Changes in pressure areas noted.
22 OCTOBER
Isobaric Chart for 9 AM.
23 OCTOBER
Isobaric Chart for 9 AM.
General Notes
- Wind speeds and directions are represented by arrows.
- Temperature and barometric readings noted in millibars (mb).
Explanations:
- The charts show atmospheric pressure and changes in weather patterns observed around New Zealand.
- Each chart represents data collected at 9 AM on the respective date.
- Isobars connect points of equal atmospheric pressure.
Legends:
- L: Indicates an area of low atmospheric pressure.
- H: Indicates an area of high atmospheric pressure.
- Wind direction is shown by arrows with feathers representing wind speed (one full feather = 10 knots).
Example of wind speeds:
- Light winds: 5 knots
- Moderate winds: 10-15 knots
- Strong winds: 20+ knots
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VUW Te Waharoa —
NZ Gazette 1987, No 222
NZLII —
NZ Gazette 1987, No 222
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Weather Maps for October 1987
(continued from previous page)
π Education, Culture & ScienceWeather Maps, Isobaric Analysis, High Pressure, Low Pressure, Wind Directions, Frontal Systems