Alert archive / Missouri / Flash Flood Warnings in 2018

Flash Flood Warning 49, NWS Springfield, MO

October 7, 2018Miller County, Morgan County, Missouri

NWS Springfield, MO issued this flash flood warning at Oct 7, 2018, 1:40 PM CDT for Miller County, Morgan County, Missouri. It was in force for 6 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
Oct 7, 2018, 1:40 PM CDT (18:40 UTC)
Expired
Oct 7, 2018, 7:45 PM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Miller County, MO, Morgan County, MO

The radar

The Springfield radar (KSGF), 135 km from the middle of the area, began a volume at 18:40 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, 6.7 hours before the alert went out and 185 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 2018-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 723 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 2018-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
723 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
857 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

480 
WGUS53 KSGF 071840
FFWSGF
MOC131-141-080045-
/O.NEW.KSGF.FF.W.0049.181007T1840Z-181008T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
140 PM CDT SUN OCT 7 2018

The National Weather Service in Springfield has issued a

* Flash Flood Warning for...
  Northwestern Miller County in central Missouri...
  Southeastern Morgan County in central Missouri...

* Until 745 PM CDT Sunday.

* At 139 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. 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...
  Eldon...                          Lake Ozark...
  Laurie...                         Sunrise Beach...
  Barnett...                        Olean...
  Bagnell...                        Rocky Mount...
  Lakeview...                       Aurora Springs...

This warning includes but is not limited to the following low water
crossings...
Route O near Laurie...
and Route Z at Blue Spring Creek southeast of Rocky Mount.

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 9270 3843 9262 3843 9256 3842 9250
      3817 9261 3817 9264 3821 9265 3823 9271
      3822 9276 3819 9277 3819 9285

$$

Raberding
1 follow-up statement
581 
WGUS73 KSGF 080045
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
745 PM CDT SUN OCT 7 2018

MOC131-141-080053-
/O.EXP.KSGF.FF.W.0049.000000T0000Z-181008T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Miller MO-Morgan MO-
745 PM CDT SUN OCT 7 2018

...THE FLASH FLOOD WARNING FOR NORTHWESTERN MILLER AND SOUTHEASTERN
MORGAN COUNTIES WILL EXPIRE AT 745 PM CDT...

The Flash Flood Warning has been replaced with a Flood Advisory 
which is in effect until midnight.

LAT...LON 3848 9270 3843 9262 3843 9256 3842 9250
      3817 9261 3817 9264 3821 9265 3823 9271
      3822 9276 3819 9277 3819 9285

$$

Schaumann

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 7:25 PM CDTFlash Flood WarningSGFDent, Shannon, Texas6 hr
Oct 6, 7:41 PM CDTSevere Thunderstorm WarningSGFBarry, Jasper, Lawrence, Newton49 min
Oct 6, 8:00 PM CDTSevere Thunderstorm WarningSGFJasper, Lawrence45 min
Oct 6, 8:24 PM CDTSpecial Weather StatementSGFGreene66 min
Oct 6, 9:20 PM CDTSpecial Weather StatementSGFDallas, Polk, Webster40 min
Oct 6, 9:42 PM CDTFlash Flood WarningSGFMcDonald, Newton6 hr
Oct 7, 1:16 AM CDTAreal Flood WarningSGFDent, Shannon, Texas9 hr
Oct 7, 5:30 AM CDTDense Fog AdvisorySGFDent, Maries, Miller, Phelps, Pulaski4 hr
Oct 7, 1:19 PM CDTSpecial Weather StatementSGFMiller26 min
Oct 7, 2:26 PM CDTSevere Thunderstorm WarningSGFNewton31 min
Oct 7, 5:56 PM CDTAreal Flood AdvisorySGFMiller, Morgan6 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.