Moderate

The first summer heat wave is here with many lowland locations expected to see 100 degrees for the first time this season either today or Monday. Highs will increase further by mid-week, topping out around 105, and heat advisories may be needed. After Thursday, there is uncertainty on whether the heat wave will continue and intensify or if some relief will arrive. People tend to be most vulnerable to heat early in the season. Be sure to drink plenty of water. Shift outdoor work and activities

At 955 AM CDT, Doppler radar was tracking a slow-moving thunderstorm near Bettendorf, moving north at 15 mph. HAZARD...Minor flooding. SOURCE...Radar indicated. IMPACT...Slowing or redirecting of traffic due to ponding or flowing water. Closure of waterfront access due to flooding. Locations impacted include... Davenport, Bettendorf, Eldridge, Riverdale, Panorama Park, Davenport Municipal Airport, and Park View. This includes the following highways... Interstate 74 in Iowa between mile markers 1 and 3.

Dry conditions and breezy winds will lead to elevated fire weather conditions today. South to southeast winds of 5 to 15 mph with gusts of 20 to 25 mph are forecast for this afternoon into early evening. Minimum relative humidity values of 30 to 40 percent are also expected. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see

At 930 AM CDT, Doppler radar was tracking a slow-moving thunderstorm near Hooppole, or 18 miles northeast of Cambridge, moving north at 20 mph. HAZARD...Minor flooding. SOURCE...Radar indicated. IMPACT...Slowing or redirecting of traffic due to ponding or flowing water. Closure of waterfront access due to flooding. Locations impacted include... Geneseo, Prophetstown, Erie, Atkinson, Annawan, Tampico, Hooppole, Deer Grove, Yorktown, Thomas, Portland Corners, Prophetstown State

* WHAT...Dangerous rip currents. * WHERE...In Alabama, Mobile Coastal and Baldwin Coastal Counties. In Florida, Escambia Coastal, Santa Rosa Coastal and Okaloosa Coastal Counties. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the

* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Portions of Puerto Rico and Virgin Islands. * WHEN...Until 5 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Cloudiness associated with the weak tropical wave will continue to diminish, leaving enough moisture to enhance

Abnormally dry fuel conditions further exacerbated by high temperatures reaching well into the 90s inland, low relative humidity (lowest away from the immediate coast), and strengthening southwest winds gusting to 15-20mph in the afternoon will lead to increased fire danger. Fire fuels could easily ignite and spread rapidly in these conditions. Residents and visitors to the area are urged to properly dispose of cigarette butts, matches, and any other

At 640 AM MDT, Doppler radar was tracking a strong thunderstorm 7 miles northwest of Roy, or 27 miles northeast of Lewistown, moving northeast at 45 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Roy and Fergus. If outdoors, consider seeking shelter inside a building.

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 35 kt and steep seas 6 to 8 ft expected. For the Hazardous Seas Watch, south winds 20 to 30 kt with gusts up to 40 mph and very steep and hazardous seas 8 to 11 ft possible. * WHERE...All areas. * WHEN...For the Small Craft Advisory, from 5 AM to 2 PM PDT Monday. For the Hazardous Seas Watch, from Monday afternoon through Monday evening. * IMPACTS...Very steep and hazardous seas could capsize or

At 625 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 8 miles north of Lake Diversion to 11 miles southwest of Windthorst. Movement was east at 30 mph. HAZARD...Wind gusts of 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Southwestern Wichita Falls, Archer City, Iowa Park, Holliday,