Using the posted Houston natal chart, and Carter's method of simple symbolic progression (1 degree progression per year), the progression of the natal places is 181 degrees as of 2017:
-the natal Sun (1 Virgo) progressions to 2 Pisces; natal Uranus (hurricanes; R.Bills) is @ 2 Pisces: so the Sun (life of the city) progresses to exact conjunction with natal Uranus (posited in wet Pisces), a very significant progression!
-natal Neptune is @ 3 Aquarius; it progresses to 4 Leo, within 1 degree of conjunction with natal Jupiter (@ 5 Leo); Jupiter disposits the ascending sign of the Houston natal map (natal ascendant 2 Sagittarius); as of 2017 progressed Neptune nearly conjuncts natal Jupiter: Neptune = inundations, floods (R.Bills); also note that Houston's natal Jupiter (the dispositor of the city's ascending sign) is in Leo (5 Leo), the same sign as the August 21st total solar eclipse
-natal bad luck indicator SN, @ natal 13 Scorpio, progresses by 2017 to 14 Taurus; natal good luck indicator NN is @ natal 13 Taurus; so SN progresses to with 1 degree conjunction with the natal NN, thus temporarily cancelling out the good luck NN for Houston; also note that in the August 21, 2017 eclipse, Taurus is in platik square to the eclipse in Leo
-natal Sun (1 Virgo) progresses to 2 Pisces; as of 2017, the star Sadalmelik is at 3 Pisces; so progressed Sun is within somewhat over 1 degree of exact conjunction with this star: among the indications (Robson) for Sadalmelik is "...extreme and sudden destruction..."
The progressed indications for Houston in 2017 clearly point to the current events (hurricane, floods) affecting this city.
Houston's natal map indicates to a susceptibility of the city to such events: in the natal, the Sun is in opposition to Uranus (strong winds, hurricanes); Jupiter is in opposition to the natal Moon (@ 7 Aquarius), the Moon being an indicator of moisture, rain, etc; Jupiter is also in opposition to the natal Neptune (inundations, floods), and the Moon is in conjunction with Neptune.