Alert archive / Ohio / Flash Flood Warnings in 2026

Flash Flood Warning 4, NWS Cleveland, OH

March 31, 2026Mahoning County, Trumbull County, Ohio

NWS Cleveland, OH issued this flash flood warning at Mar 31, 2026, 10:38 PM EDT for Mahoning County, Trumbull County, Ohio. It was in force for 3 hr. 2 reports 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
Mar 31, 2026, 10:38 PM EDT (02:38 UTC)
Expired
Apr 1, 2026, 1:54 AM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Mahoning County, OH, Trumbull County, OH

The radar

The Pittsburgh radar (KPBZ), 79 km from the middle of the area, began a volume at 02:39 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

TimeReportWhereRemark
Mar 31, 11:55 PM EDTFLOOD1 Wnw Austintown, OHCounty dispatch reports numerous calls of flooding in basements the Austintown area.
Mar 31, 11:59 PM EDTFLOOD1 Ese Lowellville, OHCounty dispatch reports numerous calls of flooding in basements the Lowellville area.

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 2.6 hours before the alert went out and 95 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 00:00Z on 2026-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 161 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 00:00Z on 2026-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 square meters per square second.19395878Sfc1 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
161 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1899 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
315 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

213 
WGUS51 KCLE 010238
FFWCLE
OHC099-155-010600-
/O.NEW.KCLE.FF.W.0004.260401T0238Z-260401T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
1038 PM EDT Tue Mar 31 2026

The National Weather Service in Cleveland has issued a

* Flash Flood Warning for...
  Northern Mahoning County in northeastern Ohio...
  Southern Trumbull County in northeastern Ohio...

* Until 200 AM EDT.

* At 1038 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1.5 inches of 
  rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches 
  are possible in the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  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...
  Youngstown, Warren, Boardman, Niles, Campbell, Hubbard, Canfield, 
  Newton Falls, Lordstown, Hilltop, Vienna Center, Leavittsburg, 
  Maplewood Park, Austintown, Struthers, Girard, Vienna, McDonald, 
  Poland and Windham.

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 4125 8100 4126 8100 4129 8100 4128 8052
      4119 8052 4118 8052 4117 8052 4116 8052
      4115 8052 4113 8052 4110 8052 4106 8052
      4105 8052 4104 8052 4103 8052 4102 8052
      4103 8100 4121 8100

FLASH FLOOD...RADAR INDICATED

$$

Sullivan
2 follow-up statements
341 
WGUS71 KCLE 010413
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
1213 AM EDT Wed Apr 1 2026

OHC099-155-010600-
/O.CON.KCLE.FF.W.0004.000000T0000Z-260401T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mahoning OH-Trumbull OH-
1213 AM EDT Wed Apr 1 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 2 AM EDT EARLY THIS 
MORNING FOR NORTHERN MAHONING AND SOUTHERN TRUMBULL COUNTIES...

At 1213 AM EDT, local law enforcement reported flooding across the 
warned area. Between 1 and 2 inches of rain have fallen. Additional 
rainfall amounts up to 0.5 inches are possible in the warned area. 
Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

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...
  Youngstown, Warren, Boardman, Niles, Campbell, Hubbard, Canfield, 
  Newton Falls, Lordstown, Hilltop, Vienna Center, Leavittsburg, 
  Maplewood Park, Austintown, Struthers, Girard, Vienna, McDonald, 
  Poland and Windham.

There have been reports of flooded roads and basements, especially 
in the Austintown, Boardman, and Lowellville areas.

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 4125 8100 4126 8100 4129 8100 4128 8052
      4119 8052 4118 8052 4117 8052 4116 8052
      4115 8052 4113 8052 4110 8052 4106 8052
      4105 8052 4104 8052 4103 8052 4102 8052
      4103 8100 4121 8100

FLASH FLOOD...OBSERVED

$$

Sullivan
577 
WGUS71 KCLE 010554
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
154 AM EDT Wed Apr 1 2026

OHC099-155-010604-
/O.CAN.KCLE.FF.W.0004.000000T0000Z-260401T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mahoning OH-Trumbull OH-
154 AM EDT Wed Apr 1 2026

...FLASH FLOOD WARNING FOR NORTHERN MAHONING AND SOUTHERN TRUMBULL 
COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

&&

LAT...LON 4125 8100 4126 8100 4129 8100 4128 8052
      4119 8052 4118 8052 4117 8052 4116 8052
      4115 8052 4113 8052 4110 8052 4106 8052
      4105 8052 4104 8052 4103 8052 4102 8052
      4103 8100 4121 8100

$$

Sullivan

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 8:03 PM EDTSevere Thunderstorm WarningCLECrawford, Hancock, Seneca, Wyandot42 min
Mar 31, 8:04 PM EDTAreal Flood AdvisoryCLEAshtabula, Cuyahoga, Erie, Geauga, Huron, Lorain and 4 more3 hr
Mar 31, 8:15 PM EDTFlash Flood WarningCLECuyahoga, Erie, Lorain4 hr
Mar 31, 8:31 PM EDTSevere Thunderstorm WarningCLEMedina, Portage, Summit44 min
Mar 31, 8:43 PM EDTSevere Thunderstorm WarningCLEAshland, Crawford, Huron, Marion, Morrow, Richland and 2 more47 min
Mar 31, 8:47 PM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Trumbull43 min
Mar 31, 9:01 PM EDTFlash Flood WarningCLEGeauga3 hr
Mar 31, 9:25 PM EDTSevere Thunderstorm WarningCLEAshland, Holmes, Knox, Richland, Wayne50 min
Mar 31, 9:31 PM EDTAreal Flood AdvisoryCLEMahoning, Medina, Portage, Summit, Trumbull3 hr
Mar 31, 9:39 PM EDTSevere Thunderstorm WarningCLEMahoning36 min
Mar 31, 9:43 PM EDTTornado WarningCLEHolmes, Stark, Wayne32 min
Mar 31, 10:16 PM EDTSevere Thunderstorm WarningCLEMahoning, Portage, Stark, Summit44 min
Mar 31, 11:18 PM EDTAreal Flood AdvisoryCLEErie, Lorain3 hr
Mar 31, 11:33 PM EDTRiver Flood WarningCLELake6 hr
Apr 1, 12:02 AM EDTAreal Flood WarningCLECuyahoga, Geauga4 hr
Apr 1, 12:50 AM EDTAreal Flood WarningCLECuyahoga, Geauga, Lake5 hr
Apr 1, 1:54 AM EDTAreal Flood WarningCLEMahoning, Trumbull5 hr
Apr 1, 2:53 AM EDTAreal Flood WarningCLECrawford, Hancock, Huron, Richland, Seneca, Wyandot16 hr
Apr 1, 3:33 AM EDTRiver Flood WarningCLELorain60 hr
Apr 1, 4:11 AM EDTAreal Flood WarningCLEAshland, Holmes, Richland, Stark, Wayne6 hr
Apr 1, 5:16 AM EDTRiver Flood WarningCLETrumbull54 hr
Apr 1, 5:25 AM EDTRiver Flood WarningCLEHancock34 hr
Apr 1, 6:14 AM EDTRiver Flood WarningCLEHolmes, Wayne9 days
Apr 1, 11:05 AM EDTRiver Flood WarningCLESeneca4 days
Apr 1, 12:41 PM EDTAreal Flood AdvisoryCLELucas, Ottawa, Sandusky, Wood9 hr
Apr 1, 1:18 PM EDTAreal Flood WarningCLEErie, Huron, Lorain, Ottawa, Sandusky, Seneca6 hr
Apr 1, 2:05 PM EDTRiver Flood WarningCLEErie28 hr
Apr 1, 2:17 PM EDTAreal Flood WarningCLECuyahoga, Geauga, Lake, Medina, Portage, Summit6 hr
Apr 1, 2:49 PM EDTSmall Craft AdvisoryCLE19 hr
Apr 1, 4:19 PM EDTAreal Flood WarningCLEHancock, Wood, Wyandot10 hr
Apr 1, 4:45 PM EDTAreal Flood AdvisoryCLEMahoning, Portage, Stark, Summit, Trumbull6 hr
Apr 1, 6:23 PM EDTRiver Flood WarningCLESummit11 hr
Apr 1, 7:20 PM EDTAreal Flood AdvisoryCLECrawford, Huron, Richland, Seneca, Wyandot4 hr
Apr 1, 7:22 PM EDTAreal Flood AdvisoryCLEErie, Huron, Lorain, Ottawa, Sandusky, Seneca4 hr
Apr 1, 7:34 PM EDTRiver Flood WarningCLEHancock27 hr
Apr 1, 7:34 PM EDTRiver Flood WarningCLELucas, Wood5 days

Nearby

Flash Flood Warnings in Ohio, 2026Every flash flood warning in 2026

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.