Flash Flood Warning 18, NWS Topeka, KS

730 
WGUS73 KTOP 250033
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
733 PM CDT Fri May 24 2019

KSC045-059-250330-
/O.CON.KTOP.FF.W.0018.000000T0000Z-190525T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Franklin-Douglas-
733 PM CDT Fri May 24 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
FRANKLIN AND SOUTHERN DOUGLAS COUNTIES...

At 729 PM CDT, local law enforcement reported heavy rain due to 
thunderstorms over Ottawa. Up to two inches of rain have already 
fallen. Flash flooding is occurring.

Highway 33 near Wellsville has water running over the roadway. 
Highway 59 south of Ottawa has high water running over the roadway. 
Multiple roads have water running over them in the city of Ottawa.

Some locations that will experience flooding include...
Ottawa, Baldwin City, Wellsville, Centropolis, Pomona, Richmond,
Williamsburg, Princeton, Lane and Rantoul.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

This includes Interstate 35 between mile markers 169 and 198.
 
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.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

&&

LAT...LON 3839 9507 3839 9551 3875 9550 3879 9506

$$

JP

463 
WGUS73 KTOP 250322
FFSTOP

Flash Flood Statement
National Weather Service Topeka KS
1022 PM CDT Fri May 24 2019

KSC045-059-250331-
/O.EXP.KTOP.FF.W.0018.000000T0000Z-190525T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Franklin-Douglas-
1022 PM CDT Fri May 24 2019

...THE FLASH FLOOD WARNING FOR FRANKLIN AND SOUTHERN DOUGLAS COUNTIES
WILL EXPIRE AT 1030 PM CDT...

The heavy rain has ended so the flash flooding is less likely. The 
flash flood warning has been replaced with an areal flood warning in 
effect until 3:15 AM CDT. Please continue to heed any remaining road 
closures.

LAT...LON 3839 9507 3839 9551 3875 9550 3879 9506

$$

Area Forecast Discussion
National Weather Service Topeka KS
318 PM CDT Fri May 24 2019

.SHORT TERM...(This evening through Saturday)
Issued at 316 PM CDT Fri May 24 2019

Heavy rainfall and the potential for flash flooding increases late
this afternoon and evening as thunderstorms are expected to develop
in a warm and moist environment ahead of a cold front tracking east
through the area. Latest water vapor imagery shows a  mid level
trough lifting into the southern and central plains. Meanwhile
strong moisture advection ahead of the front has raised PWAT
values between 1.5 and 1.7 inches. These numbers are expected to
rise close to 2 inches this evening, 3 standard deviations above
normal. As thunderstorms continue to develop this afternoon and
evening along and south of Interstate 70 corridor, convergence
along the front maximizes with a strong mid level jet streak to
favor multiple clusters of strong to severe storms training over
portions of southeast Kansas this afternoon and evening. Training
convection is likely to result in widespread 2 to 3 inches in the
aforementioned areas with locally higher amounts up to 4 inches
possible. With the favorable environment for heavy thunderstorms
and potential for flash flooding, there is a high risk currently
in effect through tonight for areas south of the Interstate 70
corridor.

In addition to the heavy rainfall, strong effective bulk shear and
strong mid level lapse rates will keep the risk for the large hail
and damaging wind gusts the primary threats. Isolated tornadoes
cannot be ruled out given the decent low level wind profiles on
forecast soundings and low LCLs spreading northward as surface
dewpoints are progged to reach near 70 degrees by 00Z. The tornado
threat persists through early evening while the hail and wind
threat continues overnight as a strong low level jet veers
southwestward overnight, maintaining an environment of 0-6 km
bulk shear values near 40 kts with ample MUCAPE to work with.

Convection moves out Saturday morning with expected clearing through
early afternoon before the next round of strong to severe storms
arrives in the late afternoon and evening hours. Storms are expected
to develop along and south of a front with very high sfc based cape
values with bulk shear up to 40 kts. Severe weather will be likely
through the evening with all hazards being possible, in addition to
the heavy rainfall. High PWAT values and potential for heavy
thunderstorms lead to decent confidence in the flash flood potential
to persist through Sunday morning so have extended the Flash Flood
Watch for the entire area through this period.

.LONG TERM...(Saturday night through Friday)
Issued at 316 PM CDT Fri May 24 2019

Additional rounds of thunderstorms with heavy rainfall are possible
again Sunday evening as another mid level wave lifts across Kansas.
Exact placement of the heaviest rainfall is still uncertain given
the discrepancies between guidance. Upper low matures on Monday with
a brief drying period through Monday evening. Chances for thunder
increase once again Tuesday afternoon across far eastern areas as
the upper low shifts east and out of the central plains area by
Wednesday. Northwest flow aloft ensues with upper ridging across the
Pacific Northwest.

&&

.AVIATION...(For the 18Z TAFS through 18Z Saturday afternoon)
Issued at 1234 PM CDT Fri May 24 2019

VFR to start at KTOP/KFOE with clearing MVFR deck at KMHK as the
front shifts eastward. Scattered TSRA is expected to develop and
track northeast towards KTOP/KFOE in the 21Z to 23Z time frame.
Lesser confidence for KMHK where most of the activity is progged
to be east of the terminal. Scattered storms linger throughout the
evening with MVFR decks likely through 12Z Saturday.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...
Flash Flood Watch through Sunday morning for KSZ008>012-020>024-
026-034>040-054>056-058-059.

&&

SHORT TERM...Prieto
LONG TERM...Prieto
AVIATION...Prieto

Hazardous Weather Outlook
National Weather Service Topeka KS
321 PM CDT Fri May 24 2019

KSZ008>012-020>024-026-034>040-054>056-058-059-252030-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
321 PM CDT Fri May 24 2019

This hazardous weather outlook is for east central...north
central and northeast Kansas.

.DAY ONE...This Afternoon and tonight.

Scattered severe thunderstorms will redevelop this afternoon. The
best chance for strong to severe thunderstorms will be across
east central and portions of northeast KS this afternoon and
evening. The primary hazards with any severe thunderstorms will be
large hail, damaging wind gusts and heavy rainfall. An isolated
tornado or two is possible south of Interstate 70.

The Flash Flood Watch was expanded to include the entire area,
from this morning through Sunday morning. Flooding is especially
dangerous at night when flood waters are harder to see.

River flooding will also continue this evening and tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The threat for strong to severe thunderstorms continues Saturday
through Tuesday, with heavy rainfall and flooding also a hazard
with these storms. Large hail, damaging wind gusts, and tornadoes
are also possible Saturday late afternoon and evening.

River flooding is expected to continue through much of the
week and into the Memorial Day holiday weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and tonight.

&&

More detailed information can be accessed at...
http://www.weather.gov/top/sitrep

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
602 PM CDT FRI MAY 24 2019

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

0550 PM     TSTM WND GST     LEBO                    38.42N 95.85W
05/24/2019  E60 MPH          COFFEY             KS   PUBLIC

            REPORT VIA SOCIAL MEDIA.

&&

JP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
606 PM CDT FRI MAY 24 2019

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

0605 PM     HEAVY RAIN       1 SSW GARNETT           38.27N 95.25W
05/24/2019  E1.00 INCH       ANDERSON           KS   PUBLIC

            VIA SOCIAL MEDIA. AMOUNT OCCURRED IN 15
            MINUTES.

&&

JP

Special Weather Statement
National Weather Service Topeka KS
612 PM CDT Fri May 24 2019

KSZ024-242345-
Jackson-
612 PM CDT Fri May 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR JACKSON COUNTY UNTIL 645 PM
CDT...

At 612 PM CDT, Doppler radar was tracking a strong thunderstorm over
Delia, moving northeast at 55 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Holton, Mayetta, Whiting, Denison, Delia and Potawatomi Reservation.

LAT...LON 3942 9557 3942 9559 3936 9559 3922 9585
      3922 9604 3935 9603 3965 9563 3965 9557
TIME...MOT...LOC 2312Z 230DEG 47KT 3927 9597

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
625 PM CDT FRI MAY 24 2019

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

0620 PM     HEAVY RAIN       2 WSW OLPE              38.25N 96.21W
05/24/2019  E2.00 INCH       LYON               KS   EMERGENCY MNGR

            STORM TOTAL SO FAR. STILL RAINING.

&&

JP

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
626 PM CDT FRI MAY 24 2019

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

0600 PM     HEAVY RAIN       AMERICUS                38.51N 96.26W
05/24/2019  E1.50 INCH       LYON               KS   PUBLIC

            STORM TOTAL THUS FAR. STILL RAINING. DELAYED
            REPORT.

&&

JP

Special Weather Statement
National Weather Service Topeka KS
631 PM CDT Fri May 24 2019

KSZ040-250000-
Douglas-
631 PM CDT Fri May 24 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DOUGLAS COUNTY UNTIL
700 PM CDT...

At 631 PM CDT, emergency management reported a strong thunderstorm 4
miles east of Baldwin City, moving north at 40 mph.

Pea size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Baldwin City, Eudora and Vinland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 1000 PM CDT for east central
Kansas.

LAT...LON 3874 9525 3896 9517 3897 9517 3898 9516
      3897 9513 3897 9511 3895 9509 3896 9508
      3898 9508 3899 9506 3874 9506
TIME...MOT...LOC 2331Z 199DEG 34KT 3879 9511