We present a mesoscopic picture of supercooled water in which we fit the properties of water into a general scheme applicable to all so-called fragile glass-forming liquids. Water is taken as a single liquid phase above its glass transition at about 136 K. It is the only liquid known to have a Kauzmann temperature that lies above (well above) the glass transition temperature; we discuss this phenomenon and its implications. We have also associated the metastable cubic ice Ic with the defect-ordered phase predicted by the theory of frustration-limited domains, thereby developing a general physical and theoretical picture that incorporates both the metastable low-temperature liquid and solid phases at 1 atm.