B190 CREW HAD A TXWY INCURSION; AND ALMOST HAD RWY INCURSION AT ALB.

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WE WERE JUST STARTING TO TAXI FROM THE DEICING AREA ABEAM TXWY E AT ALB; MAKING THE TURN TOWARDS TXWY A WITH INSTRUCTIONS TO PROCEED TO RWY 19. TAXIING TOWARDS TXWY A WE WERE TOLD TO 'STOP;' BY THE GND CTLR. WE COMPLIED INSTANTLY. ONCE STOPPED I REALIZED THAT I HAD CROSSED TXWY A AND WAS ON TXWY E JUST SHORT OF THE RWY HOLD SHORT LINE. WE THANKED THE CTLR AND MADE A 180 DEG TURN BACK TO TXWY A. THE RAMP AREA AND TXWY A IN THE VICINITY OF TXWY E IS ALL BLACKTOP. IN THE SNOW IT IS HARD TO SEE THE LINE MARKINGS; THUS MAKING TXWY E LOOK LIKE THE LEADOFF TO TXWY A; WHEN IN FACT IT IS THE LEADOFF TO RWY 1-19. I SUGGEST FLASHING WARNING LIGHTS AT THE HOLD SHORT POINT OF TXWY E. SUPPLEMENTAL INFO FROM ACN 541820: OUR ACFT WAS GIVEN TAXI INSTRUCTIONS FROM THE DEICE PAD TO RWY 19. THE DEICING PAD DOES NOT HAVE ANY KIND OF LIGHTING OR AN ISLAND BTWN THE PART OF THE RAMP WE WERE ON AND TXWY A. OUR INSTRUCTIONS WERE TO TAXI FROM DEICE ON TXWY A TO RWY 19. I HAD THE ARPT DIAGRAM OUT AND ASKED THE CAPT (WHO WAS IN CTL OF THE ACFT) IF HE NEEDED ANY HELP GETTING TO TXWY A FROM WHERE WE WERE. HE SAID NO; SO I CONTINUED WITH MY FO'S DUTIES. I WAS PROGRAMMING THE GPS WHICH IS IN OUR SOP'S FOR ME TO DO AS LONG AS THE CAPT IS LOOKING OUTSIDE AND TAXIING. I FELT HIM NOT MAKE THE TURN ONTO TXWY A LIKE I THOUGHT HE WOULD SO I LOOKED UP AND WHEN I DID I REALIZED WE HAD CROSSED TXWY A AND WAS ON TXWY E HEADING RIGHT ONTO THE RWY. AS I LOOKED OUT THE WINDOW I COULD SEE THE HOLD SHORT LINE. HOWEVER; THE GND CTLR SAID STOP BEFORE WE CROSSED IT. BUT IF HE HAD NOT SAID STOP WHEN HE DID HE PROBABLY WOULD HAVE CROSSED IT ONTO THE ACTIVE RWY 19. WE THEN PROCEEDED TO A 180 DEGS AND TURN BACK ONTO TXWY A AND CONTINUE THE PROPER WAY TO THE RWY. THE WX CONDITIONS DIDN'T HELP. IT WAS SNOWING AND WE HAD JUST GOT DEICED AND SO THE FLUID WAS OBSCURING OUR VIEW A LITTLE.