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
VOLMET TAF
METAR - AA, WN, CH
METAR - Other attended aerodromes
METAR - All other
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 0200-0245* 0200/1900 17
TG 0200 0200/2100 19
MS 0200
1800		 0300/1500
1900/0700		 12
12
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

(Also available for domestic flights)

Aerodromes Issue Times Validity Period Validity
Period (Hrs)
AA. WN. CH 2300*
0500*
1100*
1700*		 0000/2400
0600/0600
1200/1200
1800/1800		 24
24
24
24

*  TAFs for AA, WN & CH are issued one hour prior to the commencement of their validity period to allow for filing in ICAO databases overseas. These TAFs should not be used until the commencement of the validity period shown.

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VOLMET TAF

Aerodromes Issue Times Validity Period Validity
Period (Hrs)
AA, CH 2330
0230
0530
0830
1130
1430
1730
2030 		0000/0900
0300/1200
0600/1500
0900/1800
1200/2100
1500/2400
1800/0300
2100/0600  		9
9
9
9
9
9
9
9

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METAR - Three major New Zealand aerodromes

Aerodromes METAR SPECI TREND
Validity
Period (Hrs)
AA, WN, CH Hourly, on the hour, 24/7 Issued as required 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 and MC 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 and Tropopause)		 0530
1130
1730
2330

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

Notes:

  1. GRIB forecasts are valid for fixed times as indicated in the “Valid Times” column.
  2. Wind and temperature forecasts are available for FL50, 100, 140, 180, 240, 300, 340, 390, 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