Heavy to Excessive Rainfall and Severe Thunderstorms Today

Heavy to excessive rainfall is forecast over parts of north Texas into the Ozarks today and Wednesday. Locally catastrophic flooding will be possible across portions of southwest Oklahoma. Scattered severe thunderstorms are possible from the lower Great Lakes to the southern High Plains this afternoon and evening. Read More >

Map of estimated Water Temperatures
List of Water Temperature observations (at bottom of page/list)

Latest Marine Discussion:

.MARINE... As Canadian high pressure continues to pull away from the Atlantic coast, a southeasterly flow should further increase in strength through the morning. Small Craft Advisories eventually go into effect at all marine locations today. Winds begin to turn more southerly through the day with gusts up to 20 to 25 knots. Some upstream thunderstorms arrive later tonight which may warrant a Special Marine Warning or two. However, this is dependent on how far east these storms remain potent. A cold front moves through later tonight before sagging off to the south on Wednesday yielding a shift to northerly winds. This boundary again returns northward as a warm front on Thursday which yields a shift to southerly flow and more thunderstorm chances. In response, winds increase on Thursday which may warrant a return to small craft conditions. SCA conditions appear possible in southerly flow on Friday. Thunderstorms may also be possible during the afternoon and evening hours. Sub-SCA west to northwest winds are expected on Saturday. Update as of: 940 AM EDT Tue Apr 29 2025