Alert archive / Nebraska / Flash Flood Warnings in 2026

Flash Flood Warning 2, NWS Omaha, NE

April 14, 2026Gage County, Johnson County, Nebraska

NWS Omaha, NE issued this flash flood warning at Apr 14, 2026, 11:54 PM CDT for Gage County, Johnson County, Nebraska. It was in force for 3 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
Apr 14, 2026, 11:54 PM CDT (04:54 UTC)
Expired
Apr 15, 2026, 2:46 AM CDT
In force
3 hr
Issued by
NWS Omaha, NE
Area
Storm-based polygon
Flood severity
None

Counties Gage County, NE, Johnson County, NE

The radar

The Omaha radar (KOAX), 115 km from the middle of the area, began a volume at 04:57 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.9 hours before the alert went out and 115 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, Omaha, NE at 00:00Z on 2026-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 342 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 2026-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939587897117Sfc1 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
342 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
2096 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

859 
WGUS53 KOAX 150454
FFWOAX
NEC067-097-150800-
/O.NEW.KOAX.FF.W.0002.260415T0454Z-260415T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Omaha/Valley NE
1154 PM CDT Tue Apr 14 2026

The National Weather Service in Omaha/Valley has issued a

* Flash Flood Warning for...
  Central Gage County in southeastern Nebraska...
  West Central Johnson County in southeastern Nebraska...

* Until 300 AM CDT.

* At 1154 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 2.5 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...
  Beatrice, Filley and Homestead National Historical Park.

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.

&&

LAT...LON 4023 9679 4023 9686 4032 9688 4035 9673
      4041 9652 4042 9646 4032 9646 4027 9657

FLASH FLOOD...RADAR INDICATED

$$

Petersen
1 follow-up statement
889 
WGUS73 KOAX 150746
FFSOAX

Flash Flood Statement
National Weather Service Omaha/Valley NE
246 AM CDT Wed Apr 15 2026

NEC067-097-150756-
/O.CAN.KOAX.FF.W.0002.000000T0000Z-260415T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gage NE-Johnson NE-
246 AM CDT Wed Apr 15 2026

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL GAGE AND WEST 
CENTRAL JOHNSON COUNTIES...

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

&&

LAT...LON 4023 9679 4023 9686 4032 9688 4035 9673
      4041 9652 4042 9646 4032 9646 4027 9657

$$

CA

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Omaha, NE wrote its last area forecast discussion before this flash flood warning went out at Apr 14, 11:15 PM CDT, 39 minutes earlier. Its key messages:

  • Strong to severe thunderstorms continue to impact portions of southeastern Nebraska and southwestern Iowa overnight. Large hail, gusty winds and torrential rainfall are expected. Training thunderstorms may result in flash flooding.
  • Additional thunderstorm chances are expected Wednesday and again on Friday. Continue to monitor the forecast for severe weather potential.
  • Much colder air arrives Friday night/Saturday morning. Lows both Saturday and Sunday mornings will fall into the 20s to low/mid-30s. Additionally, snow chances return to portions of the forecast area Friday night/Saturday morning.
Area forecast discussion, Apr 14, 11:15 PM CDT, 39 minutes before
Area Forecast Discussion
National Weather Service Omaha/Valley NE
1115 PM CDT Tue Apr 14 2026

.KEY MESSAGES...

- Strong to severe thunderstorms continue to impact portions of
  southeastern Nebraska and southwestern Iowa overnight. Large
  hail, gusty winds and torrential rainfall are expected.
  Training thunderstorms may result in flash flooding.

- Additional thunderstorm chances are expected Wednesday and
  again on Friday. Continue to monitor the forecast for severe
  weather potential.

- Much colder air arrives Friday night/Saturday morning. Lows
  both Saturday and Sunday mornings will fall into the 20s to
  low/mid-30s. Additionally, snow chances return to portions of
  the forecast area Friday night/Saturday morning.

&&

.DISCUSSION...
Issued at 1111 PM CDT Tue Apr 14 2026

The forecast period begins with ongoing showers in northern Nebraska
and a few strong to severe thunderstorms along the Kansas/Nebraska
border. These thunderstorms have been kicking off along a boundary
extending from northwest of Concordia, Kansas to northwest of
Fremont, Nebraska to north of Council Bluffs, Iowa. DCAPE values
are currently in the 800-1100 J/kg range. SBCAPE values range
between 1000 to nearly 3000 J/kg. ML lapse rates range from
7-8C/km with LL lapse rates around 6.5-7.5C/km. The main
concerns with this line of storms will be large hail and gusty
winds.

Also of note with tonight's convection is the potential for some
flooding. Precipitable water values are around 1.0+ inches along and
south of the boundary. Training thunderstorms along and south of the
boundary could result in some locations getting quite a bit of
rainfall. We will continue to monitor the potential through the
night.

Heading into Wednesday morning, the low will continue to lift east-
northeast. Additional shower/thunderstorm activity is expected as
moisture wraps around the low. A few strong to severe thunderstorms
will again be possible with hail and wind being the main threats. An
isolated tornado cannot be entirely ruled out.

Thursday continues to look like our best drying out day as a ridge
moves over the region. WAA sets up with highs returning to the upper
70s to mid-80s.

Friday continues to be a day to watch closely as we move closer to
the event. Low pressure will develop on the lee side of the Rockies
Thursday night. An attendant cold front will slide into the region
through the day with much colder air pushing in behind it. The cold
front appears to be moving into the region slightly faster than
yesterday's runs. Areas ahead of the front can expect highs ranging
from the mid-70s to low 80s, while areas behind it may struggle into
the mid-50s. Warm Gulf air will be streaming into the region through
the day. An upper trough will also be arriving heading into the
latter part of the day, bringing additional lift to the region.
Strong to severe storms are expected to develop along the cold front
Friday afternoon and evening with all hazards possible. In addition
to the potential for severe storms ahead of the cold front, areas in
northern Nebraska behind the front may receive a rain/snow mix,
becoming all snow. The snow chances will push south of I-80 heading
into daybreak, with rain/snow possible for areas from Friend to
Hallam to just east of Council Bluffs. Precipitation chances should
decrease heading into the afternoon with just a few showers
remaining.

Anyone with agricultural interests or outdoor activities will want
to monitor the weekend forecast as colder temperatures and
potential wintry weather returns to the forecast. Saturday
morning temperatures have trended slightly colder, with northern
Nebraska expecting temps in the upper 20s. Areas closer to the
Kansas/Nebraska/Iowa/Missouri border will fall into the low to
mid- 30s. Sunday morning lows will be even colder with more
widespread 20s for lows and most areas falling below the
freezing mark.

&&

.AVIATION /00Z TAFS THROUGH 00Z THURSDAY/...
Issued at 626 PM CDT Tue Apr 14 2026

KOFK: VFR conditions persist at the terminal this evening.
Expect the possibility for a few showers and maybe an isolated
storm after 05Z. Additional chances for showers/storms will be
possible Wednesday morning. Winds will remain out of the north
or northwest through the TAF period.

KOMA: VFR conditions continue for now at the terminal. West
winds will shift to the north over the next couple of hours.
Thunderstorm chances will increase after 02Z, continuing
overnight. Ceilings are expected to lower to MVFR levels by
daybreak, persisting through much of the morning before
improving in the afternoon. Although not included in the TAF at
this time, there is a small chance of a few thunderstorms
coming into the vicinity of the terminal after 19Z Wednesday.
There is still some uncertainty in where specifically they will
develop and if it will impact the terminal directly.

KLNK: VFR conditions persist through the evening. Winds are
going to be shifting shortly at the terminal as an outflow
boundary moves in from the north. Thunderstorms have developed
west of the area, from west of KEAR to near KOLU. These storms
will move to the northwest with additional storms firing up
along a warm front. There is potential that a few of these
storms do make it into the vicinity of KLNK, so a mention was
added into prevailing conditions. For the rest of the forecast
period, ceilings fall to MVFR levels. There is an additional
chance of some showers or storms impacting the terminal after
18Z; however, due to TAF length, complexity, and still some
uncertainty of where these showers/storms develop, the mention
of them was omitted from prevailing conditions for now.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...None.
IA...None.

&&

DISCUSSION...ANW
AVIATION...ANW
Hazardous weather outlook, Apr 14, 9:59 PM CDT, 1 hour 55 minutes before
Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
959 PM CDT Tue Apr 14 2026

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-160300-
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page-
Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison-Stanton-
Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler-Saunders-Douglas-
Sarpy-Seward-Lancaster-Cass-Otoe-Saline-Jefferson-Gage-Johnson-
Nemaha-Pawnee-Richardson-
959 PM CDT Tue Apr 14 2026

This Hazardous Weather Outlook is for southwest Iowa, west central
Iowa, east central Nebraska, northeast Nebraska and southeast
Nebraska.

.DAY ONE...Tonight.

Strong to severe storms remain possible evening into tonight, mainly
east of a line from Fairbury,NE, to Fremont, NE, to Woodbine, IA.
Large hail and damaging winds will be the primary threats. A second
round of storms will be possible Wednesday morning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Shower and storm chances continue Wednesday and Friday. Severe
storms will be possible at times, especially across southeast
Nebraska and southwest Iowa Friday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed at times this week, particularly
Tuesday night and Friday.

In the hours before

Local storm report, Apr 14, 10:26 PM CDT, 1 hour 28 minutes before
Preliminary Local Storm Report
National Weather Service Omaha/Valley NE
1026 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1017 PM     Hail             Beatrice                40.26N 96.74W
04/14/2026  M1.00 Inch       Gage               NE   Trained Spotter

            Spotter reported quarter-sized hail in
            Beatrice, time estimated from radar.

&&

DMP

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 9:41 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson49 min
Apr 14, 10:28 PM CDTSevere Thunderstorm WarningOAXGage, Johnson47 min
Apr 14, 11:09 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Saline51 min
Apr 14, 11:16 PM CDTFlash Flood WarningOAXJohnson, Nemaha, Otoe3 hr
Apr 15, 12:07 AM CDTFire Weather WatchOAXAntelope, Boone, Cedar, Colfax, Cuming, Knox and 6 more21 hr
Apr 15, 9:07 AM CDTSevere Thunderstorm WarningOAXPlatte36 min
Apr 15, 9:47 AM CDTSevere Thunderstorm WarningOAXButler, Colfax29 min
Apr 15, 10:05 AM CDTSevere Thunderstorm WarningOAXDodge42 min
Apr 15, 10:35 AM CDTSevere Thunderstorm WarningOAXBurt, Washington36 min
Apr 15, 12:52 PM CDTSevere Thunderstorm WarningOAXButler, Seward38 min
Apr 15, 1:17 PM CDTSevere Thunderstorm WarningOAXButler, Lancaster, Saunders, Seward58 min
Apr 15, 2:10 PM CDTSevere Thunderstorm WarningOAXDodge, Douglas, Saunders, Washington37 min

Nearby

Flash Flood Warnings in Nebraska, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.