345 FLUS41 KPHI 180905 HWOPHI Hazardous Weather Outlook National Weather Service Mount Holly NJ 505 AM EDT Mon May 18 2026 MDZ012-015-019-020-190915- Kent MD-Queen Annes-Talbot-Caroline- 505 AM EDT Mon May 18 2026 This Hazardous Weather Outlook is for northeast Maryland. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$ Staarmann  809 FLUS43 KARX 180911 HWOARX Hazardous Weather Outlook National Weather Service La Crosse WI 411 AM CDT Mon May 18 2026 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-191000- Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- 411 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...Today and Tonight Scattered severe storms are possible later this evening and early overnight with damaging winds as the main threat from a line of storms moving from the southwest to the northeast. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Severe storm reports are appreciated. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. $$  259 FLUS42 KCHS 180919 HWOCHS Hazardous Weather Outlook National Weather Service Charleston SC 519 AM EDT Mon May 18 2026 GAZ087-088-099>101-114-115-137-216>219-238>241-SCZ040-042>045- 147>152-190930- Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Long- Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham- Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Inland Jasper-Beaufort-Coastal Colleton-Charleston-Coastal Jasper- Tidal Berkeley- 519 AM EDT Mon May 18 2026 This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. See the Graphical Hazardous Weather Outlook for more information about the following possible hazardous weather: - Coastal Flood - Rip Current .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. See the Graphical Hazardous Weather Outlook for more information about the following possible hazardous weather: - Rip Current && The Graphical Hazardous Weather Outlook can be found at: https://www.weather.gov/erh/ghwo/?wfo=chs $$  488 FLUS43 KLOT 180925 HWOLOT Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 425 AM CDT Mon May 18 2026 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-190930- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 425 AM CDT Mon May 18 2026 /525 AM EDT Mon May 18 2026/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Thunderstorm Risk...with an associated: Level 2 of 5 Damaging Wind Risk...up to 60 mph. Level 2 of 5 Large Hail Risk...up to quarter size. Limited Flooding Risk. DISCUSSION... A weakening line of showers and thunderstorms will move east across the area this morning. While the threat of severe weather is fairly low this morning, daytime heating will likely allow for a few strong to severe storms to develop during the midday and afternoon hours. At this time, the threat of severe weather would appear to be greatest along and south of the I-80 corridor. Damaging winds and large hail would be the main severe weather threats. Another line of thunderstorms is expected to approach the area from Iowa again toward daybreak Tuesday. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Limited Thunderstorm Risk...with an associated: Level 2 of 5 Severe Thunderstorm Risk. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon. GENERAL STORM MOTION OF THE DAY: Moving toward the northeast at 30 to 35 mph. $$ LMZ740>745-190930- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 425 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Thunderstorm Risk...with an associated: Level 2 of 5 Thunderstorm Wind Gust Risk...up to 50 knots. Level 1 of 5 Hail Risk...up to quarter size. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday... Hazardous conditions for small craft are likely. Limited Thunderstorm Risk...with an associated: Level 2 of 5 Severe Thunderstorm Risk. $$ Ratzer Visit us at www.weather.gov/chicago  114 FLUS43 KDVN 180940 HWODVN Hazardous Weather Outlook National Weather Service Quad Cities IA IL 440 AM CDT Mon May 18 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-191100- Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson- Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll- Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson- Warren-Hancock-McDonough-Scotland-Clark- 440 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of north central Illinois...northwest Illinois...west central Illinois...east central Iowa...northeast Iowa...southeast Iowa and northeast Missouri. .DAY ONE...TODAY AND TONIGHT Scattered thunderstorms will linger across portions of the Outlook Area through mid morning. These morning storms may produce gusty winds and hail. Then later tonight another line of strong to severe storms is expected to move in from the west by mid to late evening. Damaging winds will be the main threat tonight, with spin-up tornadoes a secondary concern. There will be a chance for areas of strong winds gushing out the backside in the wake of decaying showers and thunderstorms this morning. Some of these winds may gust up to 55 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this morning and especially again tonight. $$ 12  411 FLUS43 KFGF 180945 HWOFGF Hazardous Weather Outlook National Weather Service Grand Forks ND 445 AM CDT Mon May 18 2026 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-190945- West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods- West Marshall-East Marshall-North Beltrami-Pennington-Red Lake- East Polk-North Clearwater-South Beltrami-Mahnomen- South Clearwater-Hubbard-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier- Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks- Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Western Walsh- 445 AM CDT Mon May 18 2026 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated today. $$  456 FLUS43 KSGF 180946 HWOSGF Hazardous Weather Outlook National Weather Service Springfield MO 446 AM CDT Mon May 18 2026 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-191000- Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon- St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas- Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton- Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone- Taney-Ozark-Oregon- 446 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of the Missouri Ozarks and extreme southeast Kansas. .DAY ONE...Today and Tonight. Weather hazards expected... Slight tornado risk. Slight hail risk. Slight thunderstorm wind damage risk. Elevated lightning risk. Significant excessive rainfall risk Limited non thunderstorm wind risk. DISCUSSION... A Moderate Risk (3 out of 4) for repeated rounds of thunderstorms and heavy rainfall that may result in flash flooding this morning into the afternoon. Increasing confidence in a thunderstorm complex stalling into west central and central MO. A Flood Watch in effect for an area north of Interstate 44 towards the Highway 54 corridor. A Slight Risk (2 out of 5) for a few strong to severe thunderstorms this morning into the afternoon. Primary hazard is damaging wind gusts. Additional hazards include severe hail. A Slight Risk (2 out of 5) for severe thunderstorms overnight tonight into Tuesday. A line of thunderstorms expected to quickly move through the area, with the primary hazard being damaging wind gusts. Additional hazards include severe hail and a brief tornado or two. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A line of thunderstorms will be ongoing on Tuesday morning. There is uncertainty with how quickly the front clears the area and will determine if we see redevelopment Tuesday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today and tonight for the entire area. && More detailed information can be accessed at: http://www.weather.gov/sgf/dsspacket This product in graphical format...along with other weather... hydrological and climate information...at http://www.weather.gov/sgf $$ Perez  862 FLUS44 KTSA 180959 HWOTSA Hazardous Weather Outlook National Weather Service Tulsa OK 459 AM CDT Mon May 18 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-191000- Benton-Carroll-Washington AR-Madison-Northern Crawford- Northern Franklin-North and Central Sebastian-Southern Crawford- Central and Southern Franklin-Southern Sebastian-Pushmataha- Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers- Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair- Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage- Northern Sequoyah-Northern Le Flore-Northeast Osage- Central and Southern Sequoyah-Central Le Flore-Southeast Osage- Southern Le Flore- 459 AM CDT Mon May 18 2026 ...SEVERE WEATHER POSSIBLE TODAY AND TONIGHT... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Today and Tonight. TORNADO. RISK...Limited. AREA...Northeast Oklahoma. ONSET...After Midnight. SEVERE THUNDERSTORM. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Late Morning. HEAVY RAIN. RISK...Limited. AREA...Northeast Oklahoma. ONSET...After Midnight. SIGNIFICANT WINDS. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Late This Morning. DISCUSSION... A conditional risk of severe weather will exist late this morning and afternoon across eastern Oklahoma and northwest Arkansas as isolated thunderstorms may develop across the region. Thunderstorm coverage remains uncertain during this time, but any strong to severe storm may produce large hail and damaging wind gusts. Much higher thunderstorm and severe weather potential arrives late tonight across northeast Oklahoma, as a line of storms moves south out of Kansas. All severe hazards will be possible during the overnight hours including damaging wind gusts, large hail, and at least a limited threat of tornadoes. Heavy rainfall is also possible, with potential for localized flash flooding. Highest severe potential tonight lies along and northwest of Interstate 44. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. TUESDAY...Severe Thunderstorm...High Wind...and Heavy Rain Potential. WEDNESDAY THROUGH SUNDAY...Thunderstorm Potential. EXTENDED DISCUSSION... Thunderstorms will likely be ongoing Tuesday morning across eastern Oklahoma and northwest Arkansas. Although storms may be weakening during the early morning hours, re-intensification is possible as storms move southward during the late morning and afternoon. Large hail, damaging winds, and heavy rainfall are the primary hazards Tuesday afternoon, but a limited tornado threat may also develop. Storms are expected to move south of the area by late afternoon with the severe threat ending across the area. Additional rounds of thunderstorms are possible Tuesday night into Wednesday, but the severe weather potential will be much lower during this time. Daily chances of thunderstorms then persist through the end of the week as additional weather systems influence the region. At this time, severe weather potential is expected to remain low for the remainder of the week. weather.gov/tulsa contains additional information. $$