Alert archive / Missouri / Flash Flood Warnings in 2018

Flash Flood Warning 8, NWS Springfield, MO

May 20, 20185 counties in Missouri

NWS Springfield, MO issued this flash flood warning at May 20, 2018, 9:02 AM CDT for 5 counties in Missouri. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 20, 2018, 9:02 AM CDT (14:02 UTC)
Expired
May 20, 2018, 3:00 PM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Benton County, MO, Camden County, MO, Hickory County, MO, Morgan County, MO, St. Clair County, MO

The radar

The Springfield radar (KSGF), 110 km from the middle of the area, began a volume at 14:04 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.

What was reported inside it

TimeReportWhereRemark
May 20, 11:00 AM CDTFLASH FLOOD2 Sw Barnumton, MOSOCIAL MEDIA PICTURES OF NUMEROUS LOW WATER CROSSINGS FLOODED WITH SOME BARRICADED OFF.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 2.0 hours before the alert went out and 154 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 2018-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1422 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 2018-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.193958Sfc1 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
1422 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.3

Open this sounding in Storm Lab

The text

As transmitted.

978 
WGUS53 KSGF 201402
FFWSGF
MOC015-029-085-141-185-202000-
/O.NEW.KSGF.FF.W.0008.180520T1402Z-180520T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
902 AM CDT SUN MAY 20 2018

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Northern Hickory County in central Missouri...
  Southern Benton County in central Missouri...
  St. Clair County in west central Missouri...
  Northwestern Camden County in central Missouri...
  Morgan County in central Missouri...

* Until 300 PM CDT Sunday

* At 859 AM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Three 
  to five inches of rain has already fallen across much of the area 
  with localized amounts up to six inches. Flash flooding is 
  expected to begin shortly.

* Creeks, streams, and low water crossings will be especially
  susceptible to the dangers of flash flooding.
  Locations in the warning include...
  Versailles...                     Village of Four Seasons...
  Appleton City...                  Stover...
  Osceola...                        Laurie...
  Lowry City...                     Hermitage...
  Sunrise Beach...                  Wheatland...
  Preston...                        Cross Timbers...
  Gravois Mills...                  Climax Springs...
  Roscoe...                         Vista...
  Gerster...                        Quincy...
  Fristoe...                        Knobby...

This warning includes but is not limited to the following low water
crossings...
Route V at Deer Creek near Hastain...
Route DD at Knobby Creek 6 miles northeast of Edwards...
Route BB, 9 miles east of Schell City...
Route O near Laurie...
and Rainy Creek 2 miles north of Climax Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3848 9287 3841 9269 3822 9270 3811 9275
      3798 9302 3792 9333 3795 9379 3799 9386
      3796 9405 3821 9405 3821 9308 3846 9307
      3858 9300

$$

Schaumann
2 follow-up statements
281 
WGUS73 KSGF 201837
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
137 PM CDT SUN MAY 20 2018

MOC015-029-085-141-185-202000-
/O.CON.KSGF.FF.W.0008.000000T0000Z-180520T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hickory MO-Benton MO-St. Clair MO-Camden MO-Morgan MO-
137 PM CDT SUN MAY 20 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR
NORTHERN HICKORY...SOUTHERN BENTON...ST. CLAIR...NORTHWESTERN CAMDEN
AND MORGAN COUNTIES...

Radar and rain gauges indicate that three to six inches of rain fell 
across the area over the last 24 hours. This is likely resulting in 
flash flooding.

Creeks, streams, and low water crossings will be especially
susceptible to the dangers of flash flooding.

This warning includes but is not limited to the following low water
crossings...
Route V at Deer Creek near Hastain...
Route DD at Knobby Creek 6 miles northeast of Edwards...
Route BB, 9 miles east of Schell City...
Route O near Laurie...
and Rainy Creek 2 miles north of Climax Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3848 9287 3841 9269 3822 9270 3811 9275
      3798 9302 3792 9333 3795 9379 3799 9386
      3796 9405 3821 9405 3821 9308 3846 9307
      3858 9300

$$

Schaumann
262 
WGUS73 KSGF 201951
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
251 PM CDT SUN MAY 20 2018

MOC015-029-085-141-185-202001-
/O.EXP.KSGF.FF.W.0008.000000T0000Z-180520T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hickory MO-Benton MO-St. Clair MO-Camden MO-Morgan MO-
251 PM CDT SUN MAY 20 2018

...THE FLASH FLOOD WARNING FOR NORTHERN HICKORY...SOUTHERN BENTON...
ST. CLAIR...NORTHWESTERN CAMDEN AND MORGAN COUNTIES WILL EXPIRE AT
300 PM CDT...

The threat for rapid rises in water levels has diminished. Flash
flooding is no longer expected to pose a threat to life or property.
Please continue to heed any remaining road closures.

LAT...LON 3848 9287 3841 9269 3822 9270 3811 9275
      3798 9302 3792 9333 3795 9379 3799 9386
      3796 9405 3821 9405 3821 9308 3846 9307
      3858 9300

$$

Wise

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 7:06 PM CDTAreal Flood AdvisorySGFBenton, Morgan5 hr
May 19, 7:34 PM CDTSpecial Weather StatementSGFDent, Laclede, Maries, Miller, Phelps, Pulaski56 min
May 19, 8:13 PM CDTSevere Thunderstorm WarningSGFTexas, Wright47 min
May 19, 8:38 PM CDTSpecial Weather StatementSGFDent52 min
May 19, 8:42 PM CDTSpecial Weather StatementSGFWright63 min
May 19, 8:47 PM CDTSevere Thunderstorm WarningSGFTexas, Wright43 min
May 19, 9:01 PM CDTSpecial Weather StatementSGFTexas44 min
May 19, 9:27 PM CDTAreal Flood AdvisorySGFTexas6 hr
May 19, 9:34 PM CDTSpecial Weather StatementSGFShannon56 min
May 19, 10:42 PM CDTSpecial Weather StatementSGFShannon48 min
May 19, 10:52 PM CDTSevere Thunderstorm WarningSGFTexas38 min
May 19, 11:03 PM CDTFlash Flood WarningSGFShannon, Texas6 hr
May 20, 12:54 AM CDTSevere Thunderstorm WarningSGFBarton, Jasper51 min
May 20, 1:35 AM CDTSpecial Weather StatementSGFBarton, Cedar, Dade40 min
May 20, 2:34 AM CDTFlash Flood WarningSGFBenton12 hr
May 20, 4:54 AM CDTAreal Flood AdvisorySGFHowell, Shannon, Texas6 hr
May 20, 5:16 AM CDTSevere Thunderstorm WarningSGFJasper, McDonald, Newton59 min
May 20, 6:06 AM CDTRiver Flood WarningSGFShannon15 hr
May 20, 6:07 AM CDTSpecial Weather StatementSGFBarton, Dade, Jasper, Lawrence, McDonald, Newton53 min
May 20, 6:38 AM CDTSpecial Weather StatementSGFBarry, Christian, Dade, Greene, Polk52 min
May 20, 8:22 AM CDTSpecial Weather StatementSGFLaclede, Maries, Miller, Morgan, Phelps, Pulaski53 min
May 20, 9:13 AM CDTSevere Thunderstorm WarningSGFMaries, Phelps32 min
May 20, 10:33 AM CDTAreal Flood WarningSGFBarton, Vernon24 hr
May 20, 10:49 AM CDTRiver Flood WarningSGFVernon3 days
May 20, 10:49 AM CDTRiver Flood WarningSGFVernon3 days
May 20, 3:11 PM CDTSpecial Weather StatementSGFNewton49 min
May 20, 3:48 PM CDTSpecial Weather StatementSGFJasper42 min
May 20, 3:53 PM CDTSpecial Weather StatementSGFJasper52 min
May 20, 4:37 PM CDTSpecial Weather StatementSGFCedar53 min
May 20, 4:39 PM CDTSpecial Weather StatementSGFStone51 min
May 20, 4:54 PM CDTSevere Thunderstorm WarningSGFCedar24 min
May 20, 5:20 PM CDTSpecial Weather StatementSGFStone40 min
May 20, 5:39 PM CDTSpecial Weather StatementSGFSt. Clair51 min
May 20, 5:52 PM CDTSpecial Weather StatementSGFChristian38 min
May 20, 6:08 PM CDTSevere Thunderstorm WarningSGFBenton, Hickory52 min
May 20, 6:19 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Taney56 min
May 20, 6:43 PM CDTSevere Thunderstorm WarningSGFOzark, Taney47 min
May 20, 6:48 PM CDTSpecial Weather StatementSGFCamden42 min

Nearby

Flash Flood Warnings in Missouri, 2018Every flash flood warning in 2018

Sources

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