Dispatcher reported a flight would be impacted by a thunderstorm on arrival; and since the flight ha...

Narrative:

Flight was enroute to las as I took over the desk at the beginning of my shift. Noticed thunderstorm north of las heading towards the field. I advised the crew when they were approaching bty VOR that to go ahead and divert to ZZZ. Captain advised me that center had told him that the system was 15 mins out and he would press on to las. As he continued to las the system was over the field and he was put into holding. Since they had no alternate and were low on fuel he decided to divert to ZZZ. Due to strong headwinds the captain decided he was going to divert to ZZZ1 (75 miles closer) at which point I agreed and the aircraft landed with 3;200 lbs of fuel onboard.

Original NASA ASRS Text

Title: Dispatcher reported a flight would be impacted by a thunderstorm on arrival; and since the flight had no alternate fuel; the Dispatcher suggested they divert preemptively. The Captain declined; was put into holding; then diverted.

Narrative: Flight was enroute to LAS as I took over the desk at the beginning of my shift. Noticed thunderstorm north of LAS heading towards the field. I advised the crew when they were approaching BTY VOR that to go ahead and divert to ZZZ. Captain advised me that center had told him that the system was 15 mins out and he would press on to LAS. As he continued to LAS the system was over the field and he was put into holding. Since they had no alternate and were low on fuel he decided to divert to ZZZ. Due to strong headwinds the Captain decided he was going to divert to ZZZ1 (75 miles closer) at which point I agreed and the aircraft landed with 3;200 lbs of fuel onboard.

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.

Attributes
ACN	1439723
Time
Date	201704
Local Time Of Day	0601-1200
Place
Locale Reference	LAS.Airport
State Reference	NV
Environment
Light	Daylight
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Dispatcher
Qualification	Dispatch Dispatcher
Events
Anomaly	Inflight Event / Encounter Fuel Issue Inflight Event / Encounter Weather / Turbulence

Dispatcher reported a flight would be impacted by a thunderstorm on arrival; and since the flight had no alternate fuel; the dispatcher suggested they divert preemptively. The captain declined; was put into holding; then diverted.