Update: Michael, Eric, Jon V and I headed up I-76 and stopped at Julesburg, CO mid afternoon to contemplate what to do once SPC dropped the tornado probs back to 2% and the cirrus shield was holding down the instability. We had some subway and watched a line of CU form to our west over Ft. Morgan up to near Big Springs, NE. We moved up to a hill east of Julesburg and stood in the strong flow, all the ingredients were there for some decent severe except the heating. The storm up by Big Springs went severe warned so we shot up there. It was racing away from us at 60 mph! This would be the theme of the afternoon, 50 - 65 mph storm motions! A small cell popped up with a vector on it heading straight to North Platte, NE. Mike O'keefe who was nowcasting for us let us know that it had baseball hail reported with it. That was all we needed to shoot away from our dying line of cells and try to intercept this baseball producer. As we were 20 mins away from North Platte we lost all daylight and the cell that passed right over town was now only producing nickel size hail. We stuck a fork in it and called it done and headed back to Denver. Was sure good to get out and chase a slight risk area so close to home though.
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.
.DAY ONE...TODAY AND TONIGHT.
A POTENT UPPER LEVEL LOW PRESSURE SYSTEM WILL APPROACH THE OUTLOOK
AREA TODAY WITH THE ASSOCIATED COLD FRONT TO DROP SOUTHEAST
THROUGH WESTERN AND NORTH CENTRAL NEBRASKA TONIGHT. A MOIST AND
UNSTABLE ENVIRONMENT MORE TYPICAL FOR JUNE THAN LATE SEPTEMBER WILL
HELP FUEL THUNDERSTORM DEVELOPMENT LATE THIS AFTERNOON INTO
THERE IS A RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF WESTERN AND
NORTH CENTRAL NEBRASKA. LARGE HAIL AND DAMAGING WINDS WILL BE THE
PRIMARY THREAT...ALTHOUGH A FEW ISOLATED TORNADOES MAY ALSO OCCUR.
A SEVERE WEATHER WATCH WILL LIKELY BE ISSUED LATER THIS
AFTERNOON...AND MULTIPLE SEVERE WEATHER WARNING ARE LIKELY TO BE
ISSUED INTO THIS EVENING. LISTEN FOR THE LATEST WEATHER UPDATES
CONCERNING THIS POTENTIALLY DANGEROUS STORM SYSTEM.
IN ADDITION...STRONG SOUTH WINDS TODAY OF 25 TO 35 MPH WITH HIGHER
GUSTS WILL ALSO IMPACT THE OUTLOOK AREA TODAY.