Observation reminder
CODE CHECK
Validate one surface observation
After validation, red marks errors and amber marks warnings inside the input. Tap a finding to select its affected code. Missing groups are explained in the findings.
Check the month and year before saving history. The day must match AAXX.
Pressure history
Enter the MSLP from three hours earlier to verify 5appp.
Pressure readings stay in this browser for 36 hours after saving. Tayabas (98427) and Tanay (98433) use station pressure for both differences. Other stations use MSLP. Review autofilled values before validating.
Matching 3- or 6-hour rainfall selects the checkbox automatically. A 24-hour total alone does not. You can change the selection; T and Trace are accepted.
The 3-hour difference checks the sign category of a and the magnitude in ppp. At 00 and 12 UTC, the 24-hour value checks the Section 3 58/59 group.
Ready to check
Paste an observation and provide its pressure history.