Frequency of Issue

Note that all times are UTC, and issue frequency is daily unless otherwise indicated

Contents of this page:

TAF - DOMESTIC
TAF - INTERNATIONAL
METAR - AA, WN, CH
METAR - Other attended aerodromes
ARFOR
GRIB
SIGWX Charts
WIND/TEMP Charts
ROFOR

TAF - DOMESTIC

All New Zealand aerodromes except AA, WN, CH, WP

Aerodromes Issue Times Validity Period Validity
Period (Hrs)
KK, KT, WR, TG, WK, RO, AP, HN, NP, WU, PM, OH, PP, GS, NR,  WB, NS, WS, HK, MF, TU, QN, DN, NV, MC, WF, MO, LX,OU 1430-1630*
2130-2215*
1400/0700
2100/1200
17
15
HN, WR, PM, PP, WB, NS, DN, NV 0200-0315* 0200/1900 17
QN 0415 0400/1200 8
TG 0200 0200/2100 19
MS 1430-1630*
2130-2215*
1400-0700
2100-1500
17
18
CI 1545
1830
1400/0700
1900/1200
17
17

*  Because of the number of TAFs to be issued, these are issued over the issue period shown, ie, the first TAF in a group will be issued at or about the beginning of the issue period shown, and the last TAF in a group will be issued no later than the end of the issue period shown.

Note: Issue and validity times for Domestic TAF one hour earlier during NZDT.

RNZAF Base Whenuapai

WP 1725
2330
1800/1800
0000/2400
24
24

Note:  Issue times, but not validity period, for WP TAF one hour earlier during NZDT.

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TAF - INTERNATIONAL

(Available for international and domestic flights. TAF for AA and CH are also included in the Auckland VOLMET broadcasts)

Aerodromes Issue Times Validity Period Validity
Period (Hrs)
AA. WN. CH 2315*
0515*
1115*
1715*
0000/2400
0600/0600
1200/1200
1800/1800
24
24
24
24

* These TAFs should not be used until the commencement of the validity period shown

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METAR - Three major New Zealand aerodromes

Aerodromes METAR AUTO SPECI TREND
Validity
Period (Hrs)
AA, WN, CH METAR AUTO are provided every 30 minutes (on the hour and half hour), 24/7 SPECI are not issued 2

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METAR - New Zealand aerodromes (except AA, WN, CH)

Aerodromes METAR SPECI TREND
Validity
Period (Hrs)
WP, OH, MF Hourly, on the hour, during ATS operations Issued as required Issued for WP and OH only - 2 Hr validity period

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Aerodromes METAR SPECI TREND
Validity
Period (Hrs)
KT Hourly, on the hour, but only during limited hours which can vary on a daily basis. Not generally issued   None issued

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Aerodromes METAR SPECI TREND
Validity
Period (Hrs)
All other NZ aerodromes including the Chatham Is. METAR AUTO are provided every 30 minutes (on the hour and half hour), 24/7 SPECI are not issued  None issued

ARFOR

Areas Issue Times Validity Period Validity
Period (Hrs)
FN, TA, TK, ED, MH, CP, SA, DV, ST, TN, WW, KA, AL, PL, CY, GE, FD 1730-1810*
2330-0010*
1730/0200
2330/1200
8.5
12.5

*  Because of the number of ARFORs to be issued, these are issued over the issue period shown, ie, the first ARFOR in the group will be issued at or about the beginning of the issue period shown, and the last ARFOR in the group will be issued no later than the end of the issue period shown.

Note:  Validity times one hour earlier during NZDT.

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GRIB

Areas Issue Times Valid Times
Global
(Wind, Temperature, Humidity, Icing, Turbulence, CB cloud, Maximum Wind and Tropopause)

0430


1030


1630


2230

0600, 0900, 1200, 1500, 1800, 2100, 0000, 0300, 0600, 0900, 1200

1200, 1500, 1800, 2100, 0000, 0300, 0600, 0900, 1200, 1500 1800

1800, 2100, 0000, 0300, 0600, 0900, 1200, 1500, 1800, 2100, 0000

0000, 0300, 0600, 0900, 1200, 1500, 1800, 2100, 0000, 0300, 0600

Notes:

  1. GRIB forecasts are valid for fixed times as indicated in the “Valid Times” column.
  2. Wind and temperatures forecasts are available for FL050, 100, 140, 180, 240, 270, 300, 320, 340, 360, 390, 410, 450, 530.

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SIGWX Charts

Type of Forecast Issue Times Valid Times
High Level
(FL250-630)
Medium Level
(FL100-250)

0300
0900
1500
2100

1800
0000
0600
1200

Note: All SIGWX charts have a validity of +/- 3 hours of the stated valid times.

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Wind and Temperature (WIND/TEMP) Charts

Type of Forecast Issue Times Valid Times
Wind and Temperature 0530
1130
1730
2330

1200, 1800, 0000, 0600
1800, 0000, 0600, 1200
0000, 0600, 1200, 1800
0600, 1200, 1800, 0000

Notes:

  1. The wind and temperature charts have a validity of +/- 3 hours of the stated valid times.
  2. Charts are available for FL50, 100, 140, 180, 240, 300, 340, 390, 450.

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ROFOR

Type of Forecast Issue Time Valid Time
ROFOR As requested by individual aircraft operators As requested by individual aircraft operators