Alert archive / Missouri / Flash Flood Warnings in 2021
Flash Flood Warning 27, NWS Springfield, MO
NWS Springfield, MO issued this flash flood warning at May 2, 2021, 8:59 PM CDT for Vernon County, Missouri. It was in force for 4 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 2, 2021, 8:59 PM CDT (01:59 UTC)
- Expired
- May 3, 2021, 1:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 94 km from the middle of the area, began a volume at 02:00 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 2, 9:00 PM CDT | FLASH FLOOD | 1 N Walker, MO | A CAR WAS SWEPT OFF THE ROAD ON C HIGHWAY DUE TO RUN OFF FROM HEAVY RAINFALL JUST NORTH OF WALKER. |
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 00:00Z, 2.0 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 181 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
157
WGUS53 KSGF 030159
FFWSGF
MOC217-030600-
/O.NEW.KSGF.FF.W.0027.210503T0159Z-210503T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Springfield MO
859 PM CDT Sun May 2 2021
The National Weather Service in Springfield has issued a
* Flash Flood Warning for...
Eastern Vernon County in west central Missouri...
* Until 100 AM CDT.
* At 859 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. Additional heavy rain over these same loctions will be
possible as storms continue to generate over the same locations.
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...
Nevada, Walker, Schell City, Harwood and Horton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3804 9423 3803 9421 3804 9421 3804 9420
3804 9419 3804 9407 3775 9407 3772 9417
3782 9432 3797 9444 3805 9441
FLASH FLOOD...RADAR INDICATED
$$
Lindenberg1 follow-up statement
883
WGUS73 KSGF 030558
FFSSGF
Flash Flood Statement
National Weather Service Springfield MO
1258 AM CDT Mon May 3 2021
MOC217-030608-
/O.EXP.KSGF.FF.W.0027.000000T0000Z-210503T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vernon MO-
1258 AM CDT Mon May 3 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 1 AM CDT EARLY THIS MORNING
FOR EASTERN VERNON COUNTY...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3804 9423 3803 9421 3804 9421 3804 9420
3804 9419 3804 9407 3775 9407 3772 9417
3782 9432 3797 9444 3805 9441
$$
GHNearby
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.