Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Sun Jun 07 2020 Valid 12Z Sun Jun 07 2020 - 12Z Tue Jun 09 2020 ...Tropical Storm Cristobal expected to make landfall in Louisiana late today and then up the Mississippi Valley into Tuesday with heavy rain, strong wind gusts, coastal flooding, and isolated tornadoes possible... ...Strong low pressure system to generate severe thunderstorms across the northern Plains while heavy snow is possible in parts of the northern Rockies... ...The West cools off substantially but critical to extreme fire danger continues in the southern Rockies and High Plains... Cristobal has been maintaining tropical storm intensity as it continues to move toward the central Gulf Coast this Sunday morning. Landfall will likely occur on the Louisiana coast around sunset today. Winds increasing to tropical storm force together with torrential rain, high seas, and isolated tornadoes can be expected to batter the Louisiana coast into tonight. Squalls and very heavy downpours associated with the strong rainbands of Cristobal will likely sweep across southern Mississippi, southern Alabama, and possibly the western panhandle of Florida this evening, resulting in flash flooding in parts of the area. Cristobal is forecast to head further inland and gradually weaken while bringing a quick dose of very heavy rain and gusty winds along and to the west of the Mississippi Valley into Tuesday. Meanwhile, a rather broad and vigorous upper trough for this time of the year will swing through the western U.S. this weekend and into the start of the upcoming week. Severe weather is likely to shift further northeast across the northern Plains later today as a low pressure system intensifies. The cold front inches slowly east on Monday and will act as a catalyst for additional severe storms and heavy rainfall over the northern and central Plains. Despite the wetter pattern in the northern Plains look for dry, hot, and windy conditions in parts of the southern High Plains and Four Corners region are a recipe for a significant fire weather risk. The latest fire weather outlook through the remainder of the weekend include a critical risk from Arizona to Colorado with an extreme threat for fire weather in southeast Colorado on Sunday. Temperature-wise, much cooler temperatures than both normal and recent weeks will engulf the West. Temperatures aloft will be cold enough to allow for accumulating snowfall in the Bitterroot and Sawtooth mountain ranges both Sunday and Monday. While parts of the Northwest witness wintry conditions, summer heat reigns over the High Plains where high temps in the 90s spread northward into the northern Plains by Sunday and the Upper Midwest on Monday ahead of the intensifying low pressure system. Farther south, triple digits high temps are likely across West Texas on Monday. Cooler and more comfortable temperatures arrive across the Northeast tonight with seasonally cool and less humid conditions on Sunday. Kong/Mullinax Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php