


Flood Potential Outlook
Issued by NWS Springfield, MO
Issued by NWS Springfield, MO
129 FGUS73 KSGF 132033 ESFSGF MOC097-105-119-145-153-161-169-203-209-KSC011-021-161200- PROBABILISTIC HYDROLOGIC OUTLOOK NATIONAL WEATHER SERVICE Springfield MO 3:00 PM CST Thu Mar 13 2025 ...Spring Flood and Water Resources Outlook Number 3... This Spring Flood and Water Resources Outlook is for the larger river systems in the National Weather Service Springfield, Missouri Hydrologic Service Area (HSA). This includes the Spring, Osage, Sac, Gasconade, James, Current, and Elk River Basins. Near normal to below normal flood potential is expected across the Springfield HSA. Springtime flooding is driven by typical thunderstorm activity. Details on the chances for minor, moderate, and major flooding for area river forecast points are given in the outlook tables below. Summary of Recent Conditions: Precipitation from December - February was below normal across most of the HSA. Over the past two weeks, since the last Spring Flood Outlook, above normal precipitation occurred across western portions of the HSA with normal to below normal precipitation elsewhere. Soil moisture is generally below normal except across southeastern and western portions of the HSA. During the month of February below normal to much below normal streamflow was observed across portions of the Niangua, Pomme De Terre, Sac, Spring, and Elk watersheds. Elsewhere, normal streamflow conditions occurred across the HSA. Currently, nearly 2/3 of the HSA is classified as Abnormally Dry (D0) or Moderate Drought (D1). These dry conditions generally extend across the western HSA. Outlook: Seasonal outlooks through the end of May show equal chances for above, below, or near normal temperatures and slightly elevated chances for above normal precipitation across eastern portions of the HSA. The US Monthly Drought Outlook shows drought conditions persisting through March. Longer term outlooks indicate improved drought conditions over the next few months. In Table 1 below...the current (CS) and historical (HS) or normal probabilities of exceeding minor...moderate...and major flood stages are listed for the valid time period. CS values indicate the probability of reaching a flood category based on current conditions. HS values indicate the probability of reaching a flood category based on historical or normal conditions. When the value of CS is more than HS...the probability of exceeding that level is higher than normal. When the value of CS is less than HS...the probability of exceeding that level is lower than normal. ...Table 1--Probabilities for minor...moderate and major flooding... Valid Period: 03/15/2025 - 06/13/2025 : Current and Historical : Chances of Exceeding : Flood Categories : as a Percentage (%) Categorical : Flood Stages (FT) : Minor Moderate Major Location Minor Mod Major : CS HS CS HS CS HS -------- ----- ----- ----- : --- --- --- --- --- --- :Little Osage River Fulton 22.0 25.0 30.0 : 65 63 50 50 <5 <5 Horton 41.0 45.0 50.0 : 82 88 22 24 <5 <5 :Marmaton River Fort Scott 38.0 42.0 43.0 : 26 29 9 10 6 8 Nevada 20.0 26.0 31.0 : 68 76 38 41 13 14 :Osage River Taberville 23.0 34.0 46.0 : 46 58 13 15 <5 <5 :Sac River Caplinger Mills 16.0 19.0 28.0 : 51 54 44 50 11 13 :Gasconade River Hazelgreen 21.0 26.0 30.0 : 20 27 13 18 8 9 :Roubidoux Creek Waynesville 7.0 14.0 20.0 : 27 49 7 9 <5 <5 :Big Piney River Fort Leonard Wood 8.0 15.0 23.0 : 77 81 30 39 8 8 :Gasconade River Jerome 15.0 25.0 30.0 : 37 51 9 21 7 8 :Spring River Carthage 10.0 14.0 20.0 : 28 36 9 9 <5 <5 Waco 19.0 30.0 33.0 : 32 38 <5 <5 <5 <5 Baxter Springs 14.0 22.0 30.0 : 32 34 9 13 <5 <5 :Shoal Creek Joplin 11.5 16.0 18.0 : 15 18 6 6 <5 <5 :Elk River Tiff City 15.0 20.0 25.0 : 13 33 5 13 <5 <5 :Current River Powder Mill 8.0 25.0 40.0 : 25 65 <5 10 <5 <5 :Jacks Fork Alley Spring 9.0 12.0 16.0 : 13 32 5 12 <5 7 Eminence 12.0 15.0 20.0 : <5 17 <5 9 <5 <5 :James River Galena 15.0 25.0 31.0 : 16 44 <5 19 <5 14 Boaz 10.0 18.0 24.0 : 14 66 <5 20 <5 11 Legend CS = Conditional Simulation (Current Outlook) HS = Historical Simulation FT = Feet In Table 2 below...the 95 through 5 percent columns indicate the probability of exceeding the listed stage levels (FT) for the valid time period. ...Table 2--Exceedance Probabilities... Chance of Exceeding Stages at Specific Locations Valid Period: 03/15/2025 - 06/13/2025 Location 95% 90% 75% 50% 25% 10% 5% -------- ------ ------ ------ ------ ------ ------ ------ :Little Osage River Fulton 6.9 12.2 18.0 25.1 27.3 27.9 29.3 Horton 35.3 40.9 41.6 43.1 44.5 47.4 48.5 :Marmaton River Fort Scott 13.3 16.5 24.2 31.1 38.5 41.8 43.3 Nevada 8.4 12.0 16.0 24.4 29.3 32.6 36.6 :Osage River Taberville 12.7 16.2 18.2 21.6 25.8 35.2 38.4 :Sac River Caplinger Mills 7.7 8.2 11.2 16.8 25.9 28.4 30.0 :Gasconade River Hazelgreen 2.9 3.7 5.9 11.2 18.6 26.2 35.0 :Roubidoux Creek Waynesville 2.1 2.6 3.3 4.4 7.3 10.8 15.7 :Big Piney River Fort Leonard Wood 3.2 4.2 8.2 10.6 15.5 20.2 27.4 :Gasconade River Jerome 3.8 4.9 7.7 12.4 18.4 24.2 32.4 :Spring River Carthage 3.5 3.9 5.0 7.0 10.5 13.9 16.5 Waco 5.5 7.2 9.8 13.9 21.2 25.2 26.9 Baxter Springs 5.9 6.4 7.7 10.5 15.4 21.9 24.9 :Shoal Creek Joplin 2.1 2.8 4.3 5.7 7.5 13.6 16.7 :Elk River Tiff City 4.5 4.9 5.8 7.8 11.4 16.0 20.2 :Current River Powder Mill 3.3 3.3 3.3 3.3 8.1 15.0 19.3 :Jacks Fork Alley Spring 2.5 2.5 2.5 2.5 6.1 9.7 12.1 Eminence 2.4 2.4 2.4 2.4 5.7 9.5 11.8 :James River Galena 5.0 5.0 5.0 5.0 9.2 18.4 23.0 Boaz 3.3 3.3 3.3 3.3 5.7 11.7 14.8 In Table 3 below...the 95 through 5 percent columns indicate the probability of falling below the listed stage levels (FT) for the valid time period. ...Table 3--Nonexceedance Probabilities... Chance of Falling Below Stages at Specific Locations Valid Period: 03/15/2025 - 06/13/2025 Location 95% 90% 75% 50% 25% 10% 5% -------- ------ ------ ------ ------ ------ ------ ------ :Little Osage River Fulton 3.4 3.4 3.4 3.3 3.3 3.3 3.3 Horton 25.4 25.4 25.4 25.4 25.4 25.4 25.4 :Marmaton River Fort Scott 7.5 7.5 7.2 6.9 6.8 6.8 6.7 Nevada 2.9 2.8 2.5 2.2 2.1 2.1 2.0 :Osage River Taberville 9.4 9.2 9.1 9.0 9.0 9.0 8.9 :Sac River Caplinger Mills 5.6 5.6 5.6 5.4 5.4 5.4 5.4 :Gasconade River Hazelgreen 2.0 2.0 1.8 1.7 1.4 1.3 1.1 :Roubidoux Creek Waynesville 1.4 1.4 1.3 1.3 1.3 1.2 1.2 :Big Piney River Fort Leonard Wood 2.4 2.3 2.3 2.1 1.8 1.7 1.6 :Gasconade River Jerome 2.5 2.4 2.2 2.1 1.9 1.7 1.5 :Current River Powder Mill 2.6 2.4 2.2 1.0 1.0 1.0 1.0 :Jacks Fork Alley Spring 2.1 2.1 2.0 1.6 1.6 1.6 1.6 Eminence 1.7 1.6 1.6 1.4 1.4 1.4 1.4 :James River Galena 3.9 3.8 3.4 3.2 3.2 3.2 3.2 Boaz 2.5 2.4 2.1 1.9 1.9 1.9 1.9 These long-range probabilistic outlooks contain forecast values that are calculated using multiple season scenarios from 30 or more years of climatological data...including current conditions of the river...soil moisture...snow cover...and 30 to 90 day long-range outlooks of temperature and precipitation. By providing a range of probabilities...the level of risk associated with long-range planning decisions can be determined. Visit our web site weather.gov/sgf for more weather and water information. This will be the last Spring Flood Outlook issued for this year. An updated Probabilistic Hydrologic Outlook will be issued during the last week of March. $$ Grout