Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 13, NWS Springfield, MO

March 17, 20214 counties in Missouri

NWS Springfield, MO issued this flash flood warning at Mar 17, 2021, 6:50 PM CDT for 4 counties in 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
Mar 17, 2021, 6:50 PM CDT (23:50 UTC)
Expired
Mar 17, 2021, 11:19 PM CDT
In force
4 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Barry County, MO, Jasper County, MO, Lawrence County, MO, Stone County, MO

The radar

The Springfield radar (KSGF), 53 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 10 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2021-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 102 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2021-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
102 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
956 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

578 
WGUS53 KSGF 172350
FFWSGF
MOC009-097-109-209-180600-
/O.NEW.KSGF.FF.W.0013.210317T2350Z-210318T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
650 PM CDT Wed Mar 17 2021

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Barry County in southwestern Missouri...
  Southeastern Jasper County in southwestern Missouri...
  Lawrence County in southwestern Missouri...
  Northwestern Stone County in southwestern Missouri...

* Until 100 AM CDT Thursday.

* At 650 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. 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...
  Monett, Aurora, Mount Vernon, Cassville, Marionville, Crane, 
  Sarcoxie and Purdy.

This includes the following low water crossings...
  Route P at Spring Creek north of Verona, County Road 2220 west of 
  Verona, Route C just south of Mcdowell, Route U, 8 miles east of 
  Purdy, Route U, 1 Mile east of Butterfield, Farm Road 2130 at The 
  Spring River west of Mount Vernon and Highway 97 just south of 
  Stotts City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3705 9415 3719 9408 3728 9399 3728 9377
      3724 9368 3712 9361 3700 9361 3699 9355
      3688 9350 3659 9376 3650 9397 3652 9403
      3672 9395 3679 9405 3700 9397 3703 9406
      3705 9406

FLASH FLOOD...RADAR INDICATED

$$

MMT
1 follow-up statement
450 
WGUS73 KSGF 180419
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
1119 PM CDT Wed Mar 17 2021

MOC009-097-109-209-180429-
/O.CAN.KSGF.FF.W.0013.000000T0000Z-210318T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barry MO-Jasper MO-Lawrence MO-Stone MO-
1119 PM CDT Wed Mar 17 2021

...FLASH FLOOD WARNING FOR BARRY, SOUTHEASTERN JASPER, LAWRENCE AND 
NORTHWESTERN STONE COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

Heavy rainfall has ended so rapid water level rises are no longer 
expected. However saturated low lying areas will remain flooded 
through tonight.

LAT...LON 3705 9415 3719 9408 3728 9399 3728 9377
      3724 9368 3712 9361 3700 9361 3699 9355
      3688 9350 3659 9376 3650 9397 3652 9403
      3672 9395 3679 9405 3700 9397 3703 9406
      3705 9406

$$

MMT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 2:19 AM CDTFlash Flood WatchSGFBarton, Benton, Camden, Cedar, Christian, Dade and 23 more19 hr
Mar 17, 2:20 AM CDTSpecial Weather StatementSGFLaclede25 min
Mar 17, 4:22 AM CDTSpecial Weather StatementSGFBenton23 min
Mar 17, 5:16 AM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Vernon29 min
Mar 17, 5:33 AM CDTSevere Thunderstorm WarningSGFBarton, Jasper, Newton57 min
Mar 17, 7:43 AM CDTSpecial Weather StatementSGFDallas32 min
Mar 17, 10:02 AM CDTAreal Flood AdvisorySGFGreene, Webster4 hr
Mar 17, 3:27 PM CDTSpecial Weather StatementSGFMcDonald33 min
Mar 17, 3:35 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton40 min
Mar 17, 4:10 PM CDTSevere Thunderstorm WarningSGFBarry, McDonald, Newton50 min
Mar 17, 4:30 PM CDTSpecial Weather StatementSGFMcDonald30 min
Mar 17, 4:40 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton50 min
Mar 17, 4:53 PM CDTSevere Thunderstorm WarningSGFBarry, Jasper, Lawrence, Newton52 min
Mar 17, 4:55 PM CDTSevere Thunderstorm WarningSGFBarry50 min
Mar 17, 5:10 PM CDTFlash Flood WarningSGFMcDonald, Newton4 hr
Mar 17, 5:10 PM CDTSevere Thunderstorm WarningSGFBarry, McDonald, Newton35 min
Mar 17, 5:12 PM CDTTornado WarningSGFBarry33 min
Mar 17, 5:32 PM CDTSevere Thunderstorm WarningSGFBarry, Lawrence43 min
Mar 17, 5:33 PM CDTSevere Thunderstorm WarningSGFBarry, Stone57 min
Mar 17, 5:33 PM CDTTornado WarningSGFBarry, Lawrence27 min
Mar 17, 5:38 PM CDTTornado WarningSGFBarry37 min
Mar 17, 5:55 PM CDTFlash Flood WarningSGFBarry, Lawrence, Newton4 hr
Mar 17, 6:01 PM CDTSevere Thunderstorm WarningSGFChristian, Dade, Greene, Lawrence44 min
Mar 17, 6:13 PM CDTTornado WarningSGFBarry, Stone17 min
Mar 17, 6:20 PM CDTTornado Warning Tornado observedSGFBarry, Stone25 min
Mar 17, 6:25 PM CDTSevere Thunderstorm WarningSGFChristian, Stone50 min
Mar 17, 6:37 PM CDTTornado WarningSGFStone23 min
Mar 17, 6:39 PM CDTSpecial Weather StatementSGFGreene51 min
Mar 17, 6:48 PM CDTSevere Thunderstorm WarningSGFChristian57 min

Nearby

Flash Flood Warnings in Missouri, 2021Every 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.