Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 34, NWS Springfield, MO

May 27, 2021Benton County, Morgan County, Missouri

NWS Springfield, MO issued this flash flood warning at May 27, 2021, 10:32 AM CDT for Benton County, Morgan County, Missouri. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 27, 2021, 10:32 AM CDT (15:32 UTC)
Expired: May 27, 2021, 2:37 PM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

Counties Benton County, MO, Morgan County, MO

The radar

The Pleasant Hill radar (KEAX), 124 km from the middle of the area, began a volume at 15:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 3.5 hours before the alert went out and 175 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 295 J/kg
Mixed-layer CIN: -229 J/kg
Mixed-layer LCL: 964 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

032 
WGUS53 KSGF 271532
FFWSGF
MOC015-141-272130-
/O.NEW.KSGF.FF.W.0034.210527T1532Z-210527T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
1032 AM CDT Thu May 27 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Benton County in central Missouri...
  Morgan County in central Missouri...

* Until 430 PM CDT.

* At 1032 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1 inch of rain 
  has fallen. Additional rainfall amounts of 2 to 3 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Versailles, Warsaw, Village of Four Seasons, Lincoln, Cole Camp, 
  Stover, Laurie and Sunrise Beach.

This includes the following low water crossings...
  Route DD at Knobby Creek 6 miles northeast of Edwards, Route O 
  near Laurie, Route V at Deer Creek near Hastain, Route WW at 
  Archer Creek northeast of Lakeview Heights and Route BB at Gabriel 
  Creek near Florence.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3819 9308 3821 9352 3851 9351 3853 9307
      3869 9306 3868 9284 3860 9284 3843 9262
      3835 9264 3835 9269 3822 9270 3819 9276
      3820 9295 3823 9296 3819 9301 3819 9302
      3820 9302 3822 9298 3827 9305

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

JT

1 follow-up statement

475 
WGUS73 KSGF 271937
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
237 PM CDT Thu May 27 2021

MOC015-141-271947-
/O.CAN.KSGF.FF.W.0034.000000T0000Z-210527T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton MO-Morgan MO-
237 PM CDT Thu May 27 2021

...FLASH FLOOD WARNING IS CANCELLED FOR BENTON AND MORGAN COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 100 AM CDT Friday for 
Portions of southeast Kansas. Portions of Missouri.

LAT...LON 3819 9308 3821 9352 3851 9351 3853 9307
      3869 9306 3868 9284 3860 9284 3843 9262
      3835 9264 3835 9269 3822 9270 3819 9276
      3820 9295 3823 9296 3819 9301 3819 9302
      3820 9302 3822 9298 3827 9305

$$

JT

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:12 PM CDT	River Flood Warning	SGF	Vernon	24 hr
May 27, 3:27 AM CDT	Special Weather Statement	SGF	Vernon	48 min
May 27, 5:11 AM CDT	Special Weather Statement	SGF	Benton	34 min
May 27, 9:45 AM CDT	River Flood Warning	SGF	Cedar	11 hr
May 27, 9:45 AM CDT	River Flood Warning	SGF	Vernon	11 hr
May 27, 10:53 AM CDT	Flash Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 19 more	8 hr
May 27, 11:11 AM CDT	Flash Flood Warning	SGF	Jasper, Newton	8 hr
May 27, 11:15 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Hickory, Polk, St. Clair	45 min
May 27, 11:37 AM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	38 min
May 27, 11:45 AM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade, Dallas, Polk	60 min
May 27, 12:07 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	53 min
May 27, 12:24 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Pulaski	66 min
May 27, 12:45 PM CDT	Flash Flood Warning	SGF	Barry, Jasper, Lawrence, Newton	6 hr
May 27, 12:52 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	38 min
May 27, 1:07 PM CDT	Flash Flood Warning	SGF	Camden, Christian, Dallas, Greene, Laclede, Polk and 1 more	5 hr
May 27, 1:07 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	41 min
May 27, 1:19 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Phelps, Pulaski, Texas, Wright	56 min
May 27, 1:29 PM CDT	Flash Flood Warning Considerable damage threat	SGF	Barry, Lawrence, Newton	6 hr
May 27, 1:31 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, McDonald, Newton	59 min
May 27, 1:35 PM CDT	Special Weather Statement	SGF	Christian, Stone	55 min
May 27, 1:51 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Webster, Wright	54 min
May 27, 1:54 PM CDT	Special Weather Statement	SGF	Dent, Texas	51 min
May 27, 2:11 PM CDT	Flash Flood Warning	SGF	Barry, Christian, Stone	6 hr
May 27, 2:25 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	47 min
May 27, 2:37 PM CDT	Flash Flood Warning	SGF	Douglas	6 hr
May 27, 2:37 PM CDT	Special Weather Statement	SGF	Howell	53 min
May 27, 2:55 PM CDT	Severe Thunderstorm Warning	SGF	Barry	50 min
May 27, 3:02 PM CDT	Severe Thunderstorm Warning	SGF	Howell	43 min
May 27, 3:28 PM CDT	Special Weather Statement	SGF	Oregon, Shannon	62 min
May 27, 3:36 PM CDT	Special Weather Statement	SGF	Christian	39 min
May 27, 3:42 PM CDT	Areal Flood Advisory	SGF	Barry, McDonald	6 hr
May 27, 3:49 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Taney	41 min
May 27, 4:09 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	36 min
May 27, 4:14 PM CDT	Flash Flood Warning	SGF	Barry	6 hr
May 27, 4:31 PM CDT	Flash Flood Warning	SGF	Ozark, Stone, Taney	6 hr
May 27, 5:23 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	47 min
May 27, 5:52 PM CDT	Flash Flood Warning	SGF	McDonald	4 hr
May 27, 6:25 PM CDT	Areal Flood Warning	SGF	Christian, Dallas, Greene, Hickory, Laclede, Polk and 2 more	15 hr
May 27, 6:41 PM CDT	Areal Flood Warning	SGF	Barry, Jasper, Lawrence, Newton	22 hr

Nearby

Flash Flood Warnings in Missouri, 2021 Every flash flood warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.