tomato blooms drying up

[bwj721]

Hello all,

So excuse me up front, as this is my first post. My tomatoes look beautiful . I have some fruit that is growing nicely not ripe yet but getting closer. They are watered as needed, top dress with fish emulsion, added leaf mold 4 weeks ago. Plants are 4 foot tall, stems are 5/8inch, nice healthy green color. Then today I notice all of the blooms look dried up. see attached pictures. What happened?

I garden in raised beds, located in the Houston Texas area

Any thought or advise would be greatly appreciated

BWJ