Alert archive / Missouri / Flash Flood Watches in 2021
Flash Flood Watch 7, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood watch at Sep 3, 2021, 3:37 AM CDT for 5 counties in Missouri; Linn County, Miami County, Kansas. It took effect at Sep 4, 2021, 12:00 AM CDT. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Sep 3, 2021, 3:37 AM CDT (08:37 UTC)
- In effect from
- Sep 4, 2021, 12:00 AM CDT
- Expired
- Sep 4, 2021, 1:00 PM CDT
- In force
- 13 hr
- Issued by
- NWS Kansas City, MO
- Flood severity
- None
Counties Linn County, KS, Miami County, KS, Bates County, MO, Cass County, MO, Henry County, MO, Johnson County, MO, Pettis County, MO
The radar
The Pleasant Hill radar (KEAX), 35 km from the middle of the area, began a volume at 08:38 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 138 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
- 155 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1035 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
The text
As transmitted.
405 WGUS63 KEAX 030837 FFAEAX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Kansas City/Pleasant Hill MO 337 AM CDT Fri Sep 3 2021 KSZ057-060-MOZ043>045-053-054-031645- /O.NEW.KEAX.FF.A.0007.210904T0500Z-210904T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry- Including the cities of Paola, Osawatomie, Louisburg, Pleasanton, La Cygne, Mound City, Belton, Raymore, Harrisonville, Pleasant Hill, Warrensburg, Sedalia, Butler, Adrian, Rich Hill, Clinton, and Windsor 337 AM CDT Fri Sep 3 2021 ...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... The National Weather Service in Kansas City/Pleasant Hill has issued a * Flash Flood Watch for portions of east central Kansas and Missouri, including the following areas, in east central Kansas, Linn KS and Miami. In Missouri, Bates, Cass, Henry, Johnson MO, and Pettis. * From late tonight through Saturday afternoon * Rounds of showers and thunderstorms with heavy rain are expected tonight into Saturday as a cold front sits over the area * Flash flooding will be possible, especially in low lying areas near creeks, rivers and streams PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
3 follow-up statements
760 WGUS63 KEAX 031759 FFAEAX Flood Watch National Weather Service Kansas City/Pleasant Hill MO 1259 PM CDT Fri Sep 3 2021 KSZ057-060-MOZ043>045-053-054-040400- /O.CON.KEAX.FF.A.0007.210904T0500Z-210904T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry- Including the cities of Paola, Osawatomie, Louisburg, Pleasanton, La Cygne, Mound City, Belton, Raymore, Harrisonville, Pleasant Hill, Warrensburg, Sedalia, Butler, Adrian, Rich Hill, Clinton, and Windsor 1259 PM CDT Fri Sep 3 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT CDT TONIGHT THROUGH SATURDAY AFTERNOON... The Flash Flood Watch continues for * Portions of east central Kansas and Missouri, including the following areas, in east central Kansas, Linn KS and Miami. In Missouri, Bates, Cass, Henry, Johnson MO, and Pettis. * From midnight CDT tonight through Saturday afternoon * Rounds of showers and thunderstorms with heavy rain are expected tonight into Saturday as a cold front sits over the area * Flash flooding will be possible, especially in low lying areas near creeks, rivers and streams PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
638 WGUS63 KEAX 041222 FFAEAX Flood Watch National Weather Service Kansas City/Pleasant Hill MO 722 AM CDT Sat Sep 4 2021 KSZ057-060-MOZ043>045-053-054-041800- /O.CON.KEAX.FF.A.0007.000000T0000Z-210904T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry- Including the cities of Clinton, La Cygne, Adrian, Paola, Osawatomie, Butler, Harrisonville, Pleasanton, Mound City, Pleasant Hill, Warrensburg, Belton, Raymore, Sedalia, Louisburg, Windsor, and Rich Hill 722 AM CDT Sat Sep 4 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of east central Kansas, including the following areas, Linn KS and Miami. Portions of Missouri, including the following areas, Bates, Cass, Henry, Johnson MO and Pettis. * Until 1 PM CDT this afternoon. * Showers and a few thunderstorms with moderate to heavy rain are expected this morning into the early afternoon as a cold front sits over the area * Flash flooding will be possible, especially in low lying areas near creeks, rivers and streams PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Atkins
061 WGUS63 KEAX 041755 FFAEAX Flood Watch National Weather Service Kansas City/Pleasant Hill MO 1255 PM CDT Sat Sep 4 2021 KSZ057-060-MOZ043>045-053-054-041900- /O.EXP.KEAX.FF.A.0007.000000T0000Z-210904T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Miami-Linn KS-Cass-Johnson MO-Pettis-Bates-Henry- Including the cities of Clinton, La Cygne, Adrian, Paola, Osawatomie, Butler, Harrisonville, Pleasanton, Mound City, Pleasant Hill, Warrensburg, Belton, Raymore, Sedalia, Louisburg, Windsor, and Rich Hill 1255 PM CDT Sat Sep 4 2021 ...FLASH FLOOD WATCH WILL EXPIRE AT 1 PM CDT THIS AFTERNOON... The Flash Flood Watch for Portions of east central Kansas, including the following areas, Linn KS and Miami. Portions of Missouri, including the following areas, Bates, Cass, Henry, Johnson MO and Pettis. will expire at 1 PM CDT this afternoon. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ Kurtz
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 6:24 AM CDT | Areal Flood Advisory | EAX | Clay, Jackson, Platte | 4 hr |
Nearby
Flash Flood Watches in Missouri, 2021Flash Flood Watches in Kansas, 2021Every flash flood watch 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.