Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 420 AM EDT Tue Jun 09 2020 Valid 12Z Tue Jun 09 2020 - 12Z Thu Jun 11 2020 ...Cristobal expected to bring more heavy rains, flooding and flash flooding and severe weather across the mid- and upper Mississippi Valley, lower Ohio Valley and into the upper Great Lakes... ..Additional heavy rains, flash flooding and severe weather possible along a strong front across portions of the central and northern Plains... ..Elevated to critical fire weather conditions from southern California, across the Southwest and into the southern High Plains... Tropical depression Cristobal has continued to move well inland across Missouri this morning, bringing tropical downpours and gusty winds near its track. The depression is expected to move steadily toward the north and then north-northeast across the Midwest this afternoon. In the mean time, a sharp cold front in conjunction with an anomalously deep and energetic upper trough is pushing eastward across the Plains. A complex interaction among Cristobal, the sharp front, and the deep upper trough will result in a variety of active weather from the central to the northern portions of the country through Wednesday morning. While strong to severe thunderstorms are occurring across northern Plains behind the sharp front, snow will continue for a while over central Colorado before a low pressure system quickly forms over the central Plains, bringing a quick burst of strong gusty winds, heavy showers and possibly thunderstorms for the central High Plains later today and tonight. Meanwhile, Cristobal is forecast to intensify and become post-tropical later today as the energetic upper trough approaches from the west. Winds are forecast to reach gale force over the waters of the Great Lakes as the post-tropical cyclone passes in a close distance early on Wednesday. Heavy downpours can also be expected near the track of Cristobal. The Great Lakes will continue to see showery and windy conditions into Wednesday as the complex system intensifies further and heads into eastern Canada early on Thursday. The southern portion of the strong front moving through the Plains is not expected to have much precipitation associated with it. However, in its wake, windy conditions are likely from the southern High Plains, westward across the Southwest and into Southern California. The combination of these high winds and low relative humidities will produce elevated to critical fire weather conditions across these areas. Temperature-wise, the widespread below average temperatures currently across the Rockies and Great Basin will push eastward behind the above mentioned strong cold front and into the central/northern Plains today and into the Upper to Mid Mississippi Valley on Wednesday. Above normal temperatures are expected across the southern Plains today followed by a general cool down. Hot and humid tropical air brought by Cristobal will overspread large portions of the eastern U.S. before a cooler air filters in from west to east behind the sharp cold front. Kong/Oravec Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php