Alert archive / Ohio / Flash Flood Warnings in 2021

Flash Flood Warning 4, NWS Northern Indiana

July 17, 2021Paulding County, Van Wert County, Ohio

NWS Northern Indiana issued this flash flood warning at Jul 17, 2021, 1:53 AM EDT for Paulding County, Van Wert County, Ohio. It was in force for 2 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: Jul 17, 2021, 1:53 AM EDT (05:53 UTC)
Expired: Jul 17, 2021, 4:13 AM EDT
In force: 2 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Flood severity: None

Counties Paulding County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 102 km from the middle of the area, began a volume at 05:53 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
Jul 17, 2:45 AM EDT	HEAVY RAIN 2.72	2 Nw Oakwood, OH	MESONET STATION DW7605 OAKWOOD.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.9 hours before the alert went out and 190 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: 163 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

194 
WGUS53 KIWX 170553
FFWIWX
OHC125-161-170900-
/O.NEW.KIWX.FF.W.0004.210717T0553Z-210717T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Northern Indiana
153 AM EDT Sat Jul 17 2021

The National Weather Service in Northern Indiana has issued a

* Flash Flood Warning for...
  Southern Paulding County in west central Ohio...
  Northwestern Van Wert County in west central Ohio...

* Until 500 AM EDT.

* At 152 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Between 2 and 4 inches of rain have fallen. The 
  expected rainfall rate is 1 to 1.5 inches in 1 hour. Additional 
  rainfall amounts of 1 to 2 inches are possible in the warned area. 
  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rain.

  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...
  Paulding, Payne, Oakwood, Grover Hill, Scott, Melrose, Haviland, 
  Latty, Broughton, Briceton, Cavett, Tipton, Worstville, Roselms, 
  Charloe, Mcgill and Mandale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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

&&

LAT...LON 4111 8480 4117 8434 4099 8434 4099 8440
      4096 8440 4092 8480

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-1.5 INCHES IN 1 HOUR

$$

IWX

1 follow-up statement

456 
WGUS73 KIWX 170813
FFSIWX

Flash Flood Statement
National Weather Service Northern Indiana
413 AM EDT Sat Jul 17 2021

OHC125-161-170823-
/O.CAN.KIWX.FF.W.0004.000000T0000Z-210717T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Paulding OH-Van Wert OH-
413 AM EDT Sat Jul 17 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN PAULDING AND 
NORTHWESTERN VAN WERT COUNTIES...

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

LAT...LON 4111 8480 4117 8434 4099 8434 4099 8440
      4096 8440 4092 8480

$$

IWX

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 9:17 PM EDT	Areal Flood Advisory	IWX	Paulding, Van Wert	3 hr
Jul 17, 12:52 AM EDT	Areal Flood Advisory	IWX	Paulding, Putnam, Van Wert	3 hr

Nearby

Flash Flood Warnings in Ohio, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.