Fire Text 

File->New. Set Mode to Grayscale.
Fill the background with black.
Type some white text with the type tool.
Layer->Type->Render Layer.
Place the text in the lower part of the image.
Layer->Flatten Image.

Image->Rotate Canvas->90 CCW.
Image->Adjust->Invert.
Filter->Stylize->Wind, set Direction to From the left.
Image->Adjust->Invert.

Filter->Stylize->Wind.
Filter->Stylize->Wind.
Image->Rotate Canvas->90 CW.

Filter->Distort->Ripple. I set Amount to 61, you can play with it a bit.

Image->Mode->Indexed Color.
Image->Mode->Color Table, set Table: to Black Body.