Alert archive / Kansas / Flash Flood Warnings in 2024

Flash Flood Warning 17, NWS Topeka, KS

July 4, 2024Douglas County, Franklin County, Kansas

NWS Topeka, KS issued this flash flood warning at Jul 4, 2024, 3:33 AM CDT for Douglas County, Franklin County, Kansas. 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 counties it named.

The facts

Issued: Jul 4, 2024, 3:33 AM CDT (08:33 UTC)
Expired: Jul 4, 2024, 6:45 AM CDT
In force: 3 hr
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Flood severity: None

Counties Douglas County, KS, Franklin County, KS

The radar

The Topeka radar (KTWX), 87 km from the middle of the area, began a volume at 08:33 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

Topeka, KS (KTOP), launched 00:00Z, 8.6 hours before the alert went out and 43 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: 84 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1206 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

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 Topeka, KS wrote its last area forecast discussion before this flash flood warning went out at Jul 4, 2:46 AM CDT, 47 minutes earlier.

Area forecast discussion, Jul 4, 2:46 AM CDT, 47 minutes before

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Hazardous weather outlook, Jul 4, 3:06 AM CDT, 27 minutes before

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In the hours before

Local storm report, Jul 4, 1:08 AM CDT, 2 hours 25 minutes before

Preliminary Local Storm Report
National Weather Service Topeka KS
108 AM CDT Thu Jul 4 2024

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

1257 AM     Tstm Wnd Gst     2 SW Abilene            38.90N 97.23W
07/04/2024  M58 MPH          Dickinson          KS   AWOS

            AWOS station KK78 Abilene.

&&

ST

Special weather statement, Jul 4, 1:23 AM CDT, 2 hours 10 minutes before

Special Weather Statement
National Weather Service Topeka KS
123 AM CDT Thu Jul 4 2024

KSZ054-040700-
Lyon-
123 AM CDT Thu Jul 4 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN LYON COUNTY THROUGH
200 AM CDT...

At 123 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles west of Madison, moving northeast at 30 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects.

Locations impacted include...
Olpe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3817 9636 3827 9636 3837 9613 3818 9596
      3817 9596
TIME...MOT...LOC 0623Z 244DEG 25KT 3815 9637

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Flanagan

Special weather statement, Jul 4, 2:10 AM CDT, 1 hour 23 minutes before

Special Weather Statement
National Weather Service Topeka KS
210 AM CDT Thu Jul 4 2024

KSZ023-024-026-038>040-055-040745-
Wabaunsee-Shawnee-Pottawatomie-Jefferson-Douglas-Jackson-Osage-
210 AM CDT Thu Jul 4 2024

...STRONG THUNDERSTORMS WILL IMPACT WESTERN JEFFERSON...SHAWNEE...
EASTERN WABAUNSEE...NORTHWESTERN DOUGLAS...NORTHERN OSAGE...
SOUTHEASTERN POTTAWATOMIE AND JACKSON COUNTIES THROUGH 245 AM CDT...

At 209 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles north of Emmett to near Maple Hill to 6
miles north of Allen. Movement was east at 50 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects.

Locations impacted include...
Topeka, Holton, Carbondale, Valley Falls, Rossville, Eskridge,
Tecumseh, St. Marys, Richland, Dover, Silver Lake, Auburn, Overbrook,
Burlingame, Meriden, Scranton, Hoyt, Ozawkie, Maple Hill, and
Mayetta.

This includes the following highways...
 Interstate 70 between mile markers 336 and 355.
 Kansas Turnpike between mile markers 156 and 191.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3875 9555 3875 9620 3904 9614 3943 9615
      3950 9557 3942 9557 3942 9547 3905 9542
TIME...MOT...LOC 0709Z 268DEG 44KT 3937 9607 3904 9604 3875 9618

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Flanagan

Special weather statement, Jul 4, 2:39 AM CDT, 54 minutes before

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Local storm report, Jul 4, 2:57 AM CDT, 36 minutes before

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Special weather statement, Jul 4, 3:09 AM CDT, 24 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 10:02 PM CDT	Special Weather Statement	TOP	Republic	28 min
Jul 3, 10:44 PM CDT	Flood Watch	TOP	Anderson, Coffey, Douglas, Franklin, Lyon, Osage and 2 more	8 hr
Jul 3, 10:44 PM CDT	Special Weather Statement	TOP	Republic	46 min
Jul 3, 11:45 PM CDT	Special Weather Statement	TOP	Ottawa	45 min
Jul 4, 12:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Ottawa	44 min
Jul 4, 12:35 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Clay, Dickinson, Geary, Ottawa, Riley	40 min
Jul 4, 1:09 AM CDT	Severe Thunderstorm Warning	TOP	Dickinson, Geary, Morris, Pottawatomie, Riley	36 min
Jul 4, 1:23 AM CDT	Special Weather Statement	TOP	Lyon	37 min
Jul 4, 1:39 AM CDT	Severe Thunderstorm Warning	TOP	Geary, Lyon, Morris, Pottawatomie, Riley, Wabaunsee	36 min
Jul 4, 2:10 AM CDT	Special Weather Statement	TOP	Jackson, Shawnee	35 min
Jul 4, 2:12 AM CDT	Areal Flood Advisory	TOP	Geary, Pottawatomie, Riley, Wabaunsee	2 hr
Jul 4, 2:35 AM CDT	Flash Flood Warning	TOP	Douglas, Jefferson, Osage, Shawnee	4 hr
Jul 4, 2:39 AM CDT	Special Weather Statement	TOP	Osage, Shawnee	36 min
Jul 4, 3:09 AM CDT	Special Weather Statement	TOP	Anderson, Douglas, Franklin	51 min
Jul 4, 5:51 AM CDT	River Flood Warning	TOP	Lyon, Osage	13 hr
Jul 4, 7:54 AM CDT	River Flood Warning	TOP	Wabaunsee	6 hr

Nearby

Flash Flood Warnings in Kansas, 2024 Every 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.