Alert archive / Missouri / Areal Flood Advisories in 2021
Areal Flood Advisory 4, NWS Kansas City, MO
NWS Kansas City, MO issued this areal flood advisory at May 16, 2021, 5:36 PM CDT for Clay County, Jackson County, Ray County, Missouri; Johnson County, Leavenworth County, Wyandotte County, Kansas. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- May 16, 2021, 5:36 PM CDT (22:36 UTC)
- Expired
- May 16, 2021, 11:08 PM CDT
- In force
- 6 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
Counties Johnson County, KS, Leavenworth County, KS, Wyandotte County, KS, Clay County, MO, Jackson County, MO, Ray County, MO
The radar
The Pleasant Hill radar (KEAX), 45 km from the middle of the area, began a volume at 22:41 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
Springfield, MO (KSGF), launched 12:00Z, 10.6 hours before the alert went out and 258 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
- 122 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1041 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Kansas City, MO wrote its last area forecast discussion before this areal flood advisory went out at May 16, 12:57 PM CDT, 4 hours 39 minutes earlier.
Area forecast discussion, May 16, 12:57 PM CDT, 4 hours 39 minutes before
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</html>Hazardous weather outlook, May 16, 5:16 AM CDT, 12 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 516 AM CDT Sun May 16 2021 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-171030- Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS- Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler- Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton- Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton- Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis- Cooper-Bates-Henry- 516 AM CDT Sun May 16 2021 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Today and Tonight Rounds of showers and thunderstorms are expected today. A few storms may be strong this afternoon into this evening potentially producing hail, gusty winds, and locally heavy rainfall. More detailed information can be accessed at... https://www.weather.gov/eax/hwo .DAYS TWO THROUGH SEVEN...Monday through Saturday Additional showers and thunderstorms are expected much of next week. The showers and thunderstorms may lead to ponding of water, and rises along area creeks and streams. More detailed information can be accessed at... https://www.weather.gov/eax/hwo
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 9:25 PM CDT | River Flood Warning | EAX | Cass, Henry, Johnson | 5 days |
| May 16, 3:35 PM CDT | Severe Thunderstorm Warning | EAX | Cooper | 27 min |
| May 16, 6:30 PM CDT | Flash Flood Warning | EAX | Jackson | 6 hr |
| May 16, 6:35 PM CDT | River Flood Warning | EAX | Jackson | 10 hr |
| May 16, 6:35 PM CDT | River Flood Warning | EAX | Carroll | 24 hr |
| May 16, 6:35 PM CDT | River Flood Warning | EAX | Cooper, Saline | 7 days |
| May 16, 3:24 PM CDT | River Flood Warning | EAX | Atchison, Leavenworth | 22 hr |
Nearby
Areal Flood Advisories in Missouri, 2021Areal Flood Advisories in Kansas, 2021Every areal flood advisory in 2021
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.