Alert archive / Kansas / Flash Flood Watches in 2019
Flash Flood Watch 3, NWS Topeka, KS
NWS Topeka, KS issued this flash flood watch at May 19, 2019, 4:17 AM CDT for 23 counties in Kansas. It took effect at May 20, 2019, 1:00 PM CDT. It was in force for 30 hr.
The area
The counties it named.
The facts
- Issued
- May 19, 2019, 4:17 AM CDT (09:17 UTC)
- In effect from
- May 20, 2019, 1:00 PM CDT
- Expired
- May 21, 2019, 7:00 PM CDT
- In force
- 30 hr
- Issued by
- NWS Topeka, KS
- Flood severity
- None
All 23 counties
Anderson County, KS, Brown County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Lyon County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS
The radar
The Topeka radar (KTWX), 16 km from the middle of the area, began a volume at 09:20 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 (KFOE), launched 00:00Z, 9.3 hours before the alert went out and 61 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.
- Mixed-layer CAPE
- 11 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 788 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch 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 watch went out at May 18, 11:49 PM CDT, 4 hours 28 minutes earlier.
Area forecast discussion, May 18, 11:49 PM CDT, 4 hours 28 minutes before
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</html>Hazardous weather outlook, May 18, 10:12 AM CDT, 18 hours 5 minutes before
Hazardous Weather Outlook National Weather Service Topeka KS 1012 AM CDT Sat May 18 2019 KSZ008>012-020>024-026-034>040-054>056-058-059-191515- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 1012 AM CDT Sat May 18 2019 This hazardous weather outlook is for east central...north central and northeast Kansas. .DAY ONE...Today and Tonight. Thunderstorms are expected to increase in coverage from south to north through the day and more thunderstorms are likely across the entire area tonight. Some of these storms may be severe with large hail and damaging winds. A tornado or two is also possible along and southeast of Interstate 35. Locally heavy rainfall is also possible which could result in flash flooding. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Severe thunderstorms are possible Monday night into Tuesday. Heavy rainfall is likely in these periods which will increase the flash flooding potential. River flooding may also possible result Monday night into the middle and later portions of the week. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed through tonight. && More detailed information can be accessed at... http://www.weather.gov/top/sitrep
In the hours before
Special weather statement, May 18, 10:28 PM CDT, 5 hours 49 minutes before
Special Weather Statement
National Weather Service Topeka KS
1028 PM CDT Sat May 18 2019
KSZ022-023-036>038-190400-
Wabaunsee-Geary-Pottawatomie-Riley-Morris-
1028 PM CDT Sat May 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GEARY...SOUTHEASTERN
RILEY...NORTHEASTERN MORRIS...WESTERN WABAUNSEE AND SOUTH CENTRAL
POTTAWATOMIE COUNTIES UNTIL 1100 PM CDT...
At 1024 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 4 miles northwest of Ogden to 9 miles west of
Volland to 3 miles southeast of Dwight. Movement was east at 35 mph.
This advisory replaces the Severe Thunderstorm Warning for Geary,
Riley, and Morris counties.
Nickel size hail and wind gusts of 50 to 55 mph will be possible
with these storms.
Locations impacted include...
Manhattan, Wamego, Alma, Ogden, St. George, Alta Vista, Dwight,
McFarland, Paxico and Volland.
This includes Interstate 70 between mile markers 304 and 335.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3925 9634 3911 9615 3882 9611 3879 9662
3897 9665 3917 9683
TIME...MOT...LOC 0324Z 249DEG 32KT 3915 9678 3900 9657 3881 9654
JPSpecial weather statement, May 18, 11:08 PM CDT, 5 hours 9 minutes before
Special Weather Statement
National Weather Service Topeka KS
1108 PM CDT Sat May 18 2019
KSZ038-039-054-055-058-190515-
Coffey-Wabaunsee-Shawnee-Lyon-Osage-
1108 PM CDT Sat May 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR SHAWNEE...WABAUNSEE...OSAGE...
COFFEY AND EASTERN LYON COUNTIES UNTIL 1215 AM CDT...
At 1107 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Alma to 4 miles south of Hartford. Movement was
east at 30 mph.
Pea size hail and winds in excess of 40 mph will be possible with
these storms.
Locations impacted include...
Topeka, Osage City, Burlington, Carbondale, Rossville, Alma,
Eskridge, Dover, Silver Lake, Auburn, Overbrook, Lyndon, Lebo,
Burlingame, Scranton, Maple Hill, Waverly, New Strawn, Quenemo and
Melvern.
This includes the following highways...
Interstate 35 between mile markers 135 and 167.
Interstate 70 between mile markers 323 and 355.
Kansas Turnpike between mile markers 135 and 179.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3817 9596 3817 9600 3904 9640 3908 9639
3918 9607 3916 9606 3916 9609 3914 9604
3913 9604 3920 9603 3922 9597 3922 9575
3869 9551 3821 9552 3816 9596
TIME...MOT...LOC 0407Z 253DEG 27KT 3902 9630 3825 9595
BaergThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:43 PM CDT | River Flood Warning | TOP | Pottawatomie | 46 hr |
| May 18, 8:53 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson | 52 min |
| May 18, 9:03 PM CDT | Special Weather Statement | TOP | Dickinson | 27 min |
| May 18, 9:17 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Geary, Morris | 43 min |
| May 18, 9:51 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Geary, Morris, Riley | 39 min |
| May 18, 9:57 PM CDT | Areal Flood Advisory | TOP | Clay, Dickinson | 4 hr |
| May 18, 10:28 PM CDT | Special Weather Statement | TOP | Wabaunsee | 32 min |
| May 18, 10:44 PM CDT | Flash Flood Warning | TOP | Clay, Dickinson, Geary, Riley | 4 hr |
| May 18, 10:51 PM CDT | Areal Flood Advisory | TOP | Clay, Cloud, Ottawa, Republic, Washington | 4 hr |
| May 18, 11:08 PM CDT | Special Weather Statement | TOP | Coffey, Osage, Shawnee, Wabaunsee | 67 min |
| May 18, 11:12 PM CDT | River Flood Warning | TOP | Clay | 15 days |
| May 18, 11:43 PM CDT | Flash Flood Warning | TOP | Pottawatomie, Riley | 6 hr |
| May 18, 11:48 PM CDT | River Flood Warning | TOP | Dickinson | 4 days |
| May 18, 11:56 PM CDT | River Flood Warning | TOP | Marshall | 60 days |
| May 19, 12:30 AM CDT | River Flood Warning | TOP | Riley | 9 hr |
| May 19, 12:43 AM CDT | Areal Flood Advisory | TOP | Jackson, Pottawatomie | 3 hr |
| May 19, 12:59 AM CDT | River Flood Warning | TOP | Cloud | 10 hr |
| May 19, 2:55 PM CDT | River Flood Warning | TOP | Lyon | 17 hr |
Nearby
Flash Flood Watches in Kansas, 2019Every flash flood watch in 2019
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.