Alert archive / Missouri / Flash Flood Warnings in 2021

Flash Flood Warning 1, NWS Paducah, KY

January 25, 2021Carter County, Missouri

NWS Paducah, KY issued this flash flood warning at Jan 25, 2021, 8:04 AM CST for Carter County, Missouri. It was in force for 5 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: Jan 25, 2021, 8:04 AM CST (14:04 UTC)
Expired: Jan 25, 2021, 12:35 PM CST
In force: 5 hr
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Flood severity: None

County Carter County, MO

The radar

The Paducah radar (KPAH), 184 km from the middle of the area, began a volume at 14:08 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

Little Rock, AR (KLZK), launched 12:00Z, 2.1 hours before the alert went out and 253 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: 4 J/kg
Mixed-layer CIN: -260 J/kg
Mixed-layer LCL: 539 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 650 m²/s²
0-3 km storm-relative helicity: 696 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

896 
WGUS53 KPAH 251404
FFWPAH
MOC035-252000-
/O.NEW.KPAH.FF.W.0001.210125T1404Z-210125T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
804 AM CST Mon Jan 25 2021

The National Weather Service in Paducah has issued a

* Flash Flood Warning for...
  Carter County in southeastern Missouri...

* Until 200 PM CST.

* At 804 AM CST, emergency management reported flooding of numerous 
  low water crossings and flooding of streets in Van Buren. Between 
  1 and 2 inches of rain have fallen. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Van Buren, Ellsinore, Hunter, Fremont and Grandin.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

LAT...LON 3710 9096 3704 9096 3704 9073 3700 9073
      3700 9071 3697 9071 3697 9070 3693 9070
      3693 9068 3688 9068 3688 9066 3681 9066
      3683 9122 3709 9122 3708 9111 3710 9100

FLASH FLOOD...OBSERVED

$$

DWS

1 follow-up statement

699 
WGUS73 KPAH 251835
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
1235 PM CST Mon Jan 25 2021

MOC035-251845-
/O.CAN.KPAH.FF.W.0001.000000T0000Z-210125T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carter MO-
1235 PM CST Mon Jan 25 2021

...FLASH FLOOD WARNING IS CANCELLED FOR CARTER COUNTY...

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

LAT...LON 3710 9096 3704 9096 3704 9073 3700 9073
      3700 9071 3697 9071 3697 9070 3693 9070
      3693 9068 3688 9068 3688 9066 3681 9066
      3683 9122 3709 9122 3708 9111 3710 9100

$$

York

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 25, 10:11 AM CST	Areal Flood Advisory	PAH	Bollinger, Butler, Cape Girardeau, Mississippi, New Madrid, Ripley and 3 more	5 hr
Jan 25, 10:50 AM CST	Flash Flood Watch	PAH	Mississippi, New Madrid	6 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.