cut-off low A cold low in mid-latitudes (occasionally almost in subtropical latitudes) where it is cut off from the main subpolar belt of low pressure. Sometimes a cut-off low occurs with a cut-off high over the higher latitudes, typically in blocking situations. In summer, weather associated with such slow-moving lows is unsettled and thundery.

cut-off low Cold low in mid-latitudes (occasionally almost in subtropical latitudes) where it is cut off from the main subpolar belt of low pressure. Sometimes a cut-off low occurs with a cut-off high over the higher latitudes, typically in blocking situations. In summer, weather associated with such slow-moving lows is unsettled and thundery.