Quick check: are these SWAT+ hydrology numbers reasonable?

[Alissar Yassin]

Dear SWAT+ community,

I would appreciate a quick check on whether my hydrology looks reasonable or if I am misinterpreting the diagnostics.

Hydrology check warnings:

• Precipitation too small (< 65 mm)

• Surface runoff ratio may be high

• Groundwater ratio may be low

• Lateral flow > groundwater flow

Key annual values (mm):

• Precipitation: ~56.6

• PET: ~1073

• Actual ET: ~47

• Surface runoff: ~8.35

• Groundwater/baseflow: very low (~0–0.05)

• Average CN: ~74.5

Questions:

1. Are these ratios reasonable given very low precipitation, or do they suggest a setup/parameter issue?

2. Can low precipitation alone explain the weak groundwater contribution?

3. Since both lateral flow and groundwater flow are near zero, is the lateral > groundwater warning meaningful?

Any advice on how to interpret or improve this would be very helpful.

Best regards,
Alissar