Alert archive / Ohio / Flash Flood Warnings in 2024

Flash Flood Warning 21, NWS Pittsburgh, PA

May 15, 2024Coshocton County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at May 15, 2024, 5:09 PM EDT for Coshocton County, Ohio. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 15, 2024, 5:09 PM EDT (21:09 UTC)
Expired
May 15, 2024, 6:06 PM EDT
In force
57 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

County Coshocton County, OH

The radar

The Cleveland radar (KCLE), 135 km from the middle of the area, began a volume at 21:10 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

Pittsburgh, PA (KPIT), launched 12:00Z, 9.2 hours before the alert went out and 142 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, Pittsburgh, PA at 12:00Z on 2024-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 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, Pittsburgh, PA at 12:00Z on 2024-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
35 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

638 
WGUS51 KPBZ 152109
FFWPBZ
OHC031-152245-
/O.NEW.KPBZ.FF.W.0021.240515T2109Z-240515T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
509 PM EDT Wed May 15 2024

The National Weather Service in Pittsburgh has issued a

* Flash Flood Warning for...
  Southeastern Coshocton County in east central Ohio...

* Until 645 PM EDT.

* At 509 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 0.5 to 1 inch are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  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...
  Plainfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4023 8169 4016 8170 4016 8186 4023 8185

FLASH FLOOD...RADAR INDICATED

$$

22
2 follow-up statements
887 
WGUS71 KPBZ 152123
FFSPBZ

Flash Flood Statement
National Weather Service Pittsburgh PA
523 PM EDT Wed May 15 2024

OHC031-152245-
/O.CON.KPBZ.FF.W.0021.000000T0000Z-240515T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coshocton OH-
523 PM EDT Wed May 15 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM EDT THIS 
EVENING FOR SOUTHEASTERN COSHOCTON COUNTY...

At 523 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3 inches of rain have 
fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in 
the warned area. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

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...
  Plainfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4023 8169 4016 8170 4016 8186 4023 8185

FLASH FLOOD...RADAR INDICATED

$$

22
112 
WGUS71 KPBZ 152206
FFSPBZ

Flash Flood Statement
National Weather Service Pittsburgh PA
606 PM EDT Wed May 15 2024

OHC031-152216-
/O.CAN.KPBZ.FF.W.0021.000000T0000Z-240515T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coshocton OH-
606 PM EDT Wed May 15 2024

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN COSHOCTON 
COUNTY...

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

&&

LAT...LON 4023 8169 4016 8170 4016 8186 4023 8185

$$

22

Nearby

Flash Flood Warnings in Ohio, 2024Every flash flood warning in 2024

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.