Donougher latched onto a long ball and slotted beyond Molly France to give the Seasiders the lead two minutes before half-time before she took her league goal tally to 13 for the season with another clinical finish in the 87th minute.
Victory puts Jordan Hadaway’s side firmly in control of the title race, although the Nomads – who have now lost back-to-back games – do have a game in hand.
NFA produced their best performance of the season to move off the bottom of the table with a scintillating 4-0 victory over Bangor 1876 at Nantporth.
The visitors went in front through Jessica Mills’ ninth-minute strike and they held onto that narrow lead for just over an hour before a quickfire brace from Ashleigh Mills gave them daylight.
The game was wrapped by Jade Scott just moments later as Niall McGuinness’ side secured a first ever away win in the Genero Adran North.
Third-place Felinheli earned a third successive win by triumphing 4-0 over Airbus UK Broughton at the Hollingsworth Group Stadium.
Captain Jenna Allsup struck a two-minute brace midway through the first half to set the Gwynedd on course for victory.
Fflur Williams made it 3-0 before half-time, before Catrin Evans found the net early in the second period to wrap up the result. The defeat sees Airbus slip to the bottom of the table.
Genero Adran North results
Airbus UK Broughton 0-4 Felinheli
Bangor 0-4 NFA
Connah’s Quay Nomads 0-2 Llandudno
