Citation 560XL captain reported a GPWS event at the end of a long duty day.

Attributes
ACN	1630244
Time
Date	201903
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Make Model Name	Citation Excel (C560XL)
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct Visual Approach
Flight Plan	VFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 90 Flight Crew Total 2000 Flight Crew Type 900
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter CFTT / CFIT

Narrative:

After a long duty day; we were repositioning the aircraft from one uncontrolled airfield to another uncontrolled airfield located 12 miles apart. At the time of departure; the ASOS was reporting marginal VFR conditions. Once we were airborne; the weather appeared to have deteriorated from what was reported. The departure was normal; but after reaching our intended altitude we began configuring for the landing. The aircraft descended and we received a terrain alert at which point we realized we were low. The pilot flying initiated a short climb; before completing the landing checklist. The landing was made without incident.

Original NASA ASRS Text

Title: Citation 560XL Captain reported a GPWS event at the end of a long duty day.

Narrative: After a long duty day; we were repositioning the aircraft from one uncontrolled airfield to another uncontrolled airfield located 12 miles apart. At the time of departure; the ASOS was reporting marginal VFR conditions. Once we were airborne; the weather appeared to have deteriorated from what was reported. The departure was normal; but after reaching our intended altitude we began configuring for the landing. The aircraft descended and we received a terrain alert at which point we realized we were low. The pilot flying initiated a short climb; before completing the landing checklist. The landing was made without incident.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.