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Thunderstorms, Heavy Rain and Heat in the Memorial Day Forecast

Strong to severe thunderstorms and heavy rain with possible flash flooding are expected from Texas to the Upper Mississippi Valley on Memorial Day. Also, a soaking rain with flooding is expected across south-central Florida. Meanwhile, a week of record breaking heat is going to get started across California into the Southwest and Great Basin, as excessive heat warnings stretch across the region. Read More >

Extreme Heavy Rainfall and Flooding - August 3rd-10th, 2013

National Weather Service, Springfield, MO

Event Summary

Extreme heavy rainfall occurred on an every night basis in differing locations across the Missouri Ozarks and southeast Kansas from August 3rd through August 10th, 2013.  Rainfall rates of around two inches per hour occurred with these storms each night and trained across the same locations for several hours.  High 24 hour precipitation totals were the result with some locations receiving between 8 to 10 inches of rain in a short window of time.  This extreme amount of rainfall led to dangerous flash flooding, many water rescues, hundreds of flooded roadways and 3 deaths.  

There was widespread 5 to 6 inches of rainfall across the Missouri Ozarks and southeast Kansas for the week with a large area of greater than 10 inches in parts of central and south central Missouri.  There was also a decent area of greater than 15 inches from the southern half of Pulaski county in to Wright county.


Event Synopsis

Several rounds of showers and thunderstorms impacted southeastern Kansas and the Missouri Ozarks the first couple of weeks of August as a persistent upper pattern remained in place. An unusually strong upper trough of low pressure was located over the Hudson Bay area of Canada while an upper ridge of high pressure remained anchored across the southwest U.S.  This resulted in a steady west to northwest flow aloft that brought a series of upper level disturbances across the region. 




Meanwhile a front became nearly stationary and oscillated only slight to the north and south underneath the persistent west to northwest flow aloft.  A flow of deep moisture from the Gulf of Mexico interacted with this boundary to aid the development of thunderstorms that trained  along the boundary. The exceptionally moist atmosphere resulted in torrential rainfall rates. 


Event Pictures


Event Radar

Here is a radar loop from the week long extreme heavy rain and flash flooding event.



Event Maps

 
Precipitation from 7 AM Aug 2nd to 7 AM Aug 3rd


Precipitation from 7 AM Aug 3rd to 7 AM Aug 4th


Precipitation from 7 AM Aug 4th to 7 AM Aug 5th


Precipitation from 7 AM Aug 5th to 7 AM Aug 6th


Precipitation from 7 AM Aug 6th to 7 AM Aug 7th


Precipitation from 7 AM Aug 7th to 7 AM Aug 8th


Precipitation from 7 AM Aug 8th to 7 AM Aug 9th


Precipitation from 7 AM Aug 9th to 7 AM Aug 10th


River Hydrographs

The following river hydrographs depict the stages of several area rivers during the flood event.









 

Roubidoux River near Waynesville



Event Impacts

Waynesville / Pulaski County - August 6
 
5 to 8 inches of rain fell over the Texas and Pulaski county areas during the early morning hours of Tuesday August 6 primarily from  Richland to Ft. Leanord Wood to Licking.

  • Fatalities and a few injuries in the Mitchell creek area
  • 60-80 homes inundated
  • 100+ people in temporary shelter
  • Creeks/streams near record levels
  • Roubidoux record crest of 21 ft at Waynesville
  • 35 homes to be evacuated far western Maries county along Gasconade River
  • Residents evacuated homes in Jerome

 Rainfall Tuesday Morning August 6th
 
 Roubidoux River Hydrograph 
 Topographic Map of Roubidoux River Valley
 
 Topographic Map of Waynesville


Newburg and Phelps / Maries / Miller Counties - August 7

5 to 8 inches of rainfall fell during the early morning  hours of August 7 from Miller County southeast into Phelps County resulting in serious flash flooding particulary in the Newburg area of Phelps County along with eastern Miller and western Maries Counties.  Signifcant flash flooding impacted Newburg with at least 15 homes evacuated. Many roads were flooded or washed out

  • Evacuations in Newburg (Phelps County) - at least 15 homes evacuated and several buildings flooded.
  • Water rescues performed in eastern Miller and western Maries as well as Newburg.
  • All roads into Newburg are closed
  • Some homes flooded in Tusbumbia and Brumley (Miller).
  • I-44 closed between MMs 172 and 186, both directions - basically between Jerome and Rolla.  Gasconade River completely covering the interstate.  
  • Jerome reached record stage - 31.8 ft.  Previous record crest 31.34 ft on 12/05/1982
    Highway 63 that crossed over the Gasconade north/downstream from Jerome gage is closed.
  • Maramec Spring Park in eastern Phelps evacuated campgrounds shortly after 4 am. 
    F
    loodwaters from the Gasconade River have caused a closure of three major roadways in Miller County.

   

Hollister / Taney County - August 8

Extreme rainfall amounts and rates impacted far southern Missouri along the Araknas border from McDonald County into Taney County resulting in serious flash flooding. Rainfall totals ranged from 5 to 9 inches.  Hollister, MO (just south of Branson) experienced significant flooding as a large flood wave came down Turkey creek which cuts through Hollister.

  • Holland mobile home park has had 15 structures flooded (1-2 possibly washed downstream).
  • An RV park has been completely evacuated.
  • Evacuations underway at another mobile home park (~15 homes) near Hidden Valley and Old Mill Rd.
  • Several businesses flooded in downtown Hollister.
  • Hollister area - 50 residential evacuations. 50-75 rescues from homes/cars. 2 mobile homes and 1 car washed away.
  • No injuries, none missing from Hollister.  Red Cross set up at New Beginnings Church.
  • 6.62" of rain measures at KBBG.  Branson COOP (colocated w/ Branson airport) measured 8" as of 7 AM.

 
   


 Roaring River - Barry County / Blue Eye - Stone County / McDonald County - August 8

Extreme rainfall amounts and rates impacted far southern Missouri along the Araknas border from McDonald County into Taney County resulting in serious flash flooding. Rainfall totals ranged from 6 to 9 inches.

  • In the community of Blue Eye (far southeastern Stone County), a retreat area with numerous cabins were flooded. Everyone was evacuated by bus.  
  • Town of Blue Eye in Stone county evacuated
  • Camp sites flooded in Roaring River State park. A deputy was dispatched to warn these campsites several hours in advance. Roaring River State Park evacuated in advance of the flooding.  All are accounted for.
  • A camp site in Noel, Mo (McDonald County) has flooded with campers currently stranded. A boat has been dispatched to rescue these individuals. At this time no known injuries or fatalities. 15 campers in Noel, MO (McDonald County) were rescued successfully.  Unfortunately, the sheriff's rescue boat's motor died and is now downstream and tied to a tree, MSHP boat is enroute to rescue.  This rescue is currently underway.
  • Vehicle washed off of Highway 90 near Jane in McDonald county that resulted in 1 fatality


Topographic Map of Roaring River State Park
 
Topographic Map of Blue Eye Area
 
   

    Big Sugar Creek Hydrograph                                                   Little Sugar Creek Hydrograph

        


Conway - Laclede County

A band of torrential rainfall impacted areas from far northeaastern Greene County into southern Laclede County where 2 to 4 icnches fell in a short period ot time. The most intense rainfall and serious flash flooding occurred in southwestern Laclede County in the Conway and Morgan areas.

  • Closure of Interstate 44 in a couple of locations near mile marker 112 and 118
  • Three feet of water was reported flowing over Interstate 44
  • A mobile home park was evacuated  near J and CC Highways.  Authorities had to rescue seven people.
  • Emergency management reported 10 homes flooded with one assisted rescue of an elderly person.
  • At least three vehicle water rescues occurred in the area.
  • No reports of fatalities or injuries
  • Numerous county roads flooded. Two bridges washed out.
  • Municipal sewer system at Conway impacted. Possibly some damage.  Initial reports were of a possible breach of the sewer system lagoon. Pumps were close to capacity and may have problems.