What is the least number of tropical cyclones when the strongest storm was Tiffany and less than 10 tropical lows.
CREATE TABLE "1990s" (
  "season" text,
  "tropical_lows" real,
  "tropical_cyclones" real,
  "severe_tropical_cyclones" real,
  "strongest_storm" text
);
SELECT MIN("severe_tropical_cyclones") FROM "1990s" WHERE "strongest_storm"='tiffany' AND "tropical_lows">10;