Alert archive / Oklahoma / River Flood Warnings in 2026

River Flood Warning 4, NWS Tulsa, OK

April 18, 2026Ottawa County, Oklahoma

NWS Tulsa, OK issued this river flood warning at Apr 18, 2026, 8:16 AM CDT for Ottawa County, Oklahoma. It took effect at Apr 18, 2026, 11:17 AM CDT. It was in force for 23 hr.

The area

The outline as issued.

The facts

Issued: Apr 18, 2026, 8:16 AM CDT (13:16 UTC)
In effect from: Apr 18, 2026, 11:17 AM CDT
Expired: Apr 19, 2026, 10:00 AM CDT
In force: 23 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: Minor

County Ottawa County, OK

The radar

The Tulsa radar (KINX), 109 km from the middle of the area, began a volume at 13:17 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 river

Written for the forecast point Spring River near Quapaw (QUAO2).

Action stage: 20 ft
Minor stage: 20 ft
Moderate stage: 24 ft
Major stage: 30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07188000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

032 
WGUS44 KTSA 181316
FLWTSA

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Tulsa OK
816 AM CDT Sat Apr 18 2026

...The National Weather Service in Tulsa OK has issued a Flood 
Warning for the following rivers in Oklahoma...

  Spring River near Quapaw affecting Ottawa County.

&&

OKC115-190130-
/O.NEW.KTSA.FL.W.0004.260418T1617Z-260419T1500Z/
/QUAO2.1.ER.260418T1617Z.260419T0000Z.260419T0900Z.NO/
816 AM CDT Sat Apr 18 2026

...FLOOD WARNING IN EFFECT FROM THIS MORNING TO LATE TOMORROW 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Spring River near Quapaw.

* WHEN...From this morning to late tomorrow morning.

* IMPACTS...At 20.0 feet, minor agricultural flooding occurs.

* ADDITIONAL DETAILS...
  - At 7:00 AM CDT Saturday the stage was 19.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late this morning to a crest of 20.5 feet this evening. It
    will then fall below flood stage by early Sunday morning.
  - Flood stage is 20.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3695 9469 3682 9469 3682 9481 3695 9481


$$

Lacy

1 follow-up statement

833 
WGUS84 KTSA 181858
FLSTSA

Flood Statement
National Weather Service Tulsa OK
158 PM CDT Sat Apr 18 2026

...The Flood Warning continues for the following rivers in 
Oklahoma...

  Neosho River near Commerce affecting Ottawa County.

...The Flood Warning is cancelled for the following rivers in 
Oklahoma...

  Spring River near Quapaw affecting Ottawa County.

&&

OKC115-182000-
/O.CAN.KTSA.FL.W.0004.000000T0000Z-260418T1858Z/
/QUAO2.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
158 PM CDT Sat Apr 18 2026

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Spring River near Quapaw.

* ADDITIONAL DETAILS...
  - At 1:00 PM CDT Saturday the stage was 18.7 feet.
  - Forecast...The river crested this morning at 19.36 feet and
    is now falling. The river is no longer expected to reach
    flood stage.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3695 9469 3682 9469 3682 9481 3695 9481


$$

OKC115-190700-
/O.EXT.KTSA.FL.W.0003.000000T0000Z-260421T1926Z/
/COMO2.2.ER.260418T1908Z.260420T0600Z.260421T1326Z.NO/
158 PM CDT Sat Apr 18 2026

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY AFTERNOON...

* WHAT...Moderate flooding is forecast.

* WHERE...Neosho River near Commerce.

* WHEN...Until early Tuesday afternoon.

* IMPACTS...At 18.0 feet, moderate agricultural flooding occurs with 
  Riverview Park experiencing minor to moderate flooding. Low lying 
  places around Miami may be cut off from easy access.

* ADDITIONAL DETAILS...
  - At 1:30 PM CDT Saturday the stage was 14.8 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 18.4 feet early Monday morning.
    It will then fall below flood stage Tuesday morning.
  - Flood stage is 15.0 feet.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 3700 9491 3689 9478 3681 9488 3700 9510


$$

Lacy

What forecasters said that day

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

NWS Tulsa, OK wrote its last area forecast discussion before this river flood warning went out at Apr 18, 12:27 AM CDT, 7 hours 49 minutes earlier. Its key messages:

Updated at 1224 AM CDT Sat Apr 18 2026
Showers and storms persist along a cold front through the overnight period before exiting Saturday morning. A few storms may be strong to severe.
Much cooler conditions expected this weekend behind the front. Frost development possible for portions of the area Sunday morning.
Mostly dry conditions expected through mid next week before a stronger storm system provides increasing rain and storm chances Thursday/Friday.

Area forecast discussion, Apr 18, 12:27 AM CDT, 7 hours 49 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1227 AM CDT Sat Apr 18 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 1224 AM CDT Sat Apr 18 2026

 - Showers and storms persist along a cold front through the
   overnight period before exiting Saturday morning. A few storms
   may be strong to severe.

 - Much cooler conditions expected this weekend behind the front.
   Frost development possible for portions of the area Sunday
   morning.

 - Mostly dry conditions expected through mid next week before a
   stronger storm system provides increasing rain and storm
   chances Thursday/Friday.

&&

.SHORT TERM...
(Through Saturday)
Issued at 1145 PM CDT Fri Apr 17 2026

Thunderstorms along a cold front will continue to move south and
east through the remainder of E OK and NW AR through the overnight
hours. Some storms may become strong to severe and produce large
hail and damaging wind gusts, though the severe threat will wane
with time. Localized flash flooding may also develop in locations
impacted by prolonged heavy rainfall...mainly in NE OK and NW AR.
Strong post-frontal north winds are occurring behind the storms
tonight, and expect this to continue through the overnight hours
with gusts 30-40 mph. Some gusts greater than 40 mph are possible,
but should remain isolated and brief. Storms exit the area by
Saturday morning, with skies clearing from north to south through
the day. High temperatures will be much cooler than recently
observed within the post-frontal airmass...likely remaining in the
60s. Winds remain breezy through Saturday afternoon, but will
gradually decrease by the evening hours.

&&

.LONG TERM...
(Saturday Night through Friday)
Issued at 1145 PM CDT Fri Apr 17 2026

Effective radiational cooling will provide a cool night Saturday
night, with lows in the mid-upper 30s and lower 40s. The typically
colder spots may experience some frost development, especially in
NW AR. Otherwise, it will be a quiet night weather-wise. High
pressure remains in place through Sunday with mostly clear skies
and temperatures warming into the 70s. Southerly flow returns
Monday ahead of an approaching disturbance which could bring some
low shower/ thunder chances to the area Tuesday/Wednesday.
However, at this time, it appears most locations will remain dry
with this system. Amplified troughing moves through the
intermountain west mid-week and then ejects into the plains
Thursday and Friday. This will bring widespread rain and storm
chances back to the region, with at least some potential for
severe weather. Temperatures warm back to near/above average for
the remainder of the week.

&&

.AVIATION...
(06Z TAFS)
Issued at 1224 AM CDT Sat Apr 18 2026

Broken line of thunderstorms will continue to move across
northwest AR and southeast OK over the next few hours with the
passage of a cold front. A period of MVFR ceilings and at least
brief IFR vis will accompany the front/storms with potential
wind gusts in the 30-35 knot range. Overall conditions will
improve with VFR conditions prevailing by sunrise. Gusty north
winds through the afternoon will diminish mid to late afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   64  41  74  48 /   0   0   0   0
FSM   66  40  74  45 /  20   0   0   0
MLC   64  38  74  43 /  10   0   0   0
BVO   64  36  74  43 /   0   0   0   0
FYV   62  35  71  42 /  20   0   0   0
BYV   60  38  69  44 /  20   0   0   0
MKO   63  38  72  44 /  10   0   0   0
MIO   61  38  70  45 /   0   0   0   0
F10   63  38  72  44 /  10   0   0   0
HHW   64  41  72  44 /  30   0   0   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...None.
AR...None.
&&

SHORT TERM...43
LONG TERM....43
AVIATION...14

Hazardous weather outlook, Apr 18, 4:21 AM CDT, 3 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
421 AM CDT Sat Apr 18 2026

ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071-
073>075-154-172-176-254-272-276-354-376-190930-
Benton-Carroll-Washington AR-Madison-Northern Crawford-
Northern Franklin-North and Central Sebastian-Southern Crawford-
Central and Southern Franklin-Southern Sebastian-Pushmataha-
Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-
Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-
Northern Sequoyah-Northern Le Flore-Northeast Osage-
Central and Southern Sequoyah-Central Le Flore-Southeast Osage-
Southern Le Flore-
421 AM CDT Sat Apr 18 2026

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Today and Tonight.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
	RISK...Limited.
	AREA...Southeast Oklahoma through west central Arkansas.
	ONSET...Ongoing.

SIGNIFICANT WINDS.
	RISK...Limited.
	AREA...Eastern Oklahoma and northwest Arkansas.
	ONSET...Ongoing.

DISCUSSION...
Isolated thunderstorms will continue through mid morning across
portions of southeast Oklahoma and west central Arkansas. The
showers and storms will move east of the region by late morning.
Gusty northerly winds will continue today with periodic gusts
of 25 to 35 mph through the day.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
SUNDAY and MONDAY...No Hazards.
TUESDAY and WEDNESDAY...High Wind Potential.
THURSDAY and FRIDAY...Thunderstorm and High Wind Potential.

EXTENDED DISCUSSION...
Southerly winds increase early next week with warmer temperatures
returning to the region. Thunderstorm chances also return Thursday
into Friday.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Apr 18, 4:30 AM CDT, 3 hours 46 minutes before

Special Weather Statement
National Weather Service Tulsa OK
430 AM CDT Sat Apr 18 2026

OKZ053-181015-
Choctaw OK-
430 AM CDT Sat Apr 18 2026

...A STRONG THUNDERSTORM WILL IMPACT WESTERN CHOCTAW COUNTY THROUGH
515 AM CDT...

At 430 AM CDT, Doppler radar indicated a strong thunderstorm near
Bennington, moving east at 50 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects. Minor hail damage to vegetation
         is possible.

Locations in or near the path include...
Boswell...                        Soper...
Kent...                           Unger...
Gay...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3392 9591 3395 9594 3412 9594 3414 9596
      3415 9598 3416 9558 3394 9559 3394 9560
      3393 9560 3391 9564
TIME...MOT...LOC 0930Z 267DEG 42KT 3400 9608

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

Special weather statement, Apr 18, 5:21 AM CDT, 2 hours 55 minutes before

Special Weather Statement
National Weather Service Tulsa OK
521 AM CDT Sat Apr 18 2026

OKZ049-053-181100-
Choctaw OK-Pushmataha OK-
521 AM CDT Sat Apr 18 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN PUSHMATAHA AND
NORTHEASTERN CHOCTAW COUNTIES THROUGH 600 AM CDT...

At 521 AM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 7 miles east of Antlers to 3 miles south of
Rattan to 2 miles southeast of Messer. Movement was east at 40 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects. Minor hail damage to vegetation
         is possible.

Locations in or near the path include...
Rattan...                         Hugo Lake State Park...
Oleta...                          Cloudy...
Messer...                         Corinne...
Apple...                          Sobol...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3413 9546 3424 9555 3446 9505 3425 9505
      3424 9515 3408 9516 3404 9548
TIME...MOT...LOC 1021Z 249DEG 36KT 3423 9550 3416 9539 3407 9543

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Local storm report, Apr 18, 7:40 AM CDT, 36 minutes before

Preliminary Local Storm Report
National Weather Service Tulsa OK
740 AM CDT Sat Apr 18 2026

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

0920 PM     Tstm Wnd Gst     Hallett                 36.23N 96.57W
04/17/2026  E60 MPH          Pawnee             OK   Public

            Person who lives in Hallett estimated that
            severe winds to around 60 mph blew through
            the town with the storm. Time estimated by
            radar.

&&

MDL

Local storm report, Apr 18, 7:45 AM CDT, 31 minutes before

Preliminary Local Storm Report
National Weather Service Tulsa OK
745 AM CDT Sat Apr 18 2026

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

0913 PM     Tstm Wnd Gst     Maramec                 36.24N 96.68W
04/17/2026  M60 MPH          Pawnee             OK   Public

            Time estimated by radar.

&&

MDL

Local storm report, Apr 18, 8:03 AM CDT, 13 minutes before

Preliminary Local Storm Report
National Weather Service Tulsa OK
803 AM CDT Sat Apr 18 2026

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

0448 AM     Hail             Boswell                 34.03N 95.87W
04/18/2026  E1.75 Inch       Choctaw            OK   Public

&&

MDL

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 17, 7:04 PM CDT	Tornado Warning	TSA	Osage	26 min
Apr 17, 7:22 PM CDT	Tornado Warning	TSA	Osage	23 min
Apr 17, 7:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TSA	Nowata, Osage, Washington	52 min
Apr 17, 7:49 PM CDT	Tornado Warning	TSA	Osage	26 min
Apr 17, 8:07 PM CDT	Tornado Warning	TSA	Osage, Washington	23 min
Apr 17, 8:20 PM CDT	Special Weather Statement	TSA	Nowata, Washington	25 min
Apr 17, 8:41 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Pawnee	34 min
Apr 17, 8:44 PM CDT	Special Weather Statement	TSA	Craig, Nowata	31 min
Apr 17, 9:01 PM CDT	Special Weather Statement	TSA	Osage	29 min
Apr 17, 9:13 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	47 min
Apr 17, 9:15 PM CDT	Special Weather Statement	TSA	Craig, Ottawa	30 min
Apr 17, 9:43 PM CDT	Special Weather Statement	TSA	Ottawa	32 min
Apr 17, 9:51 PM CDT	Special Weather Statement	TSA	Pawnee	24 min
Apr 17, 9:58 PM CDT	Special Weather Statement	TSA	Rogers	32 min
Apr 17, 10:27 PM CDT	Special Weather Statement	TSA	Mayes, Rogers	33 min
Apr 17, 11:46 PM CDT	Special Weather Statement	TSA	Cherokee	29 min
Apr 18, 12:09 AM CDT	Special Weather Statement	TSA	Adair, Cherokee	36 min
Apr 18, 12:36 AM CDT	Special Weather Statement	TSA	Adair	39 min
Apr 18, 4:30 AM CDT	Special Weather Statement	TSA	Choctaw	45 min
Apr 18, 4:42 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw	48 min
Apr 18, 5:21 AM CDT	Special Weather Statement	TSA	Pushmataha	39 min

Nearby

River Flood Warnings in Oklahoma, 2026 Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.