In measure - not beyond measure; in moderation (Job 23:6; Psa 6:1; Jer 10:24; Jer 30:11; Jer 46:28).
when it shooteth - image from the vine; rather, passing from the image to the thing itself, “when sending her away (namely, Israel to exile; Isa 50:1, God only putting the adulteress away when He might justly have put her to death), Thou didst punish her” [Gesenius].
stayeth - rather, as Margin, “when He removeth it by His rough wind in the day,” etc.
east wind - especially violent in the East (Job 27:21; Jer 18:17).