Alert archive / Missouri / Areal Flood Warnings in 2021

Areal Flood Warning 8, NWS Kansas City, MO

June 25, 20217 counties in Missouri

NWS Kansas City, MO issued this areal flood warning at Jun 25, 2021, 1:17 AM CDT for 7 counties in Missouri. It was in force for 12 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 25, 2021, 1:17 AM CDT (06:17 UTC)
Expired: Jun 25, 2021, 1:15 PM CDT
In force: 12 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: None

Counties Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Mercer County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 158 km from the middle of the area, began a volume at 06:19 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.

What was reported inside it

Time	Report	Where	Remark
Jun 25, 6:50 AM CDT	HEAVY RAIN 3.73	Trenton, MO
Jun 25, 7:00 AM CDT	HEAVY RAIN 7.52	Princeton, MO	24 HOUR TOTAL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.3 hours before the alert went out and 191 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: 2766 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1424 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 225 m²/s²
0-3 km storm-relative helicity: 404 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 23.2

Open this sounding in Storm Lab

The text

As transmitted.

556 
WGUS43 KEAX 250617
FLWEAX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
117 AM CDT Fri Jun 25 2021

MOC061-063-075-079-081-129-227-251815-
/O.NEW.KEAX.FA.W.0008.210625T0617Z-210625T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Daviess MO-DeKalb MO-Gentry MO-Grundy MO-Harrison MO-Mercer MO-
Worth MO-
117 AM CDT Fri Jun 25 2021

The National Weather Service in Pleasant Hill MO has issued a

* Flood Warning for...
  Northern Daviess County in north central Missouri...
  Grundy County in north central Missouri...
  Harrison County in north central Missouri...
  Mercer County in north central Missouri...
  Northern DeKalb County in northwestern Missouri...
  Gentry County in northwestern Missouri...
  Worth County in northwestern Missouri...

* Until 115 PM CDT Friday.

* At 117 AM CDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Flooding is ongoing or expected to begin shortly in 
  the warned area. Between 2 and 6 inches of rain have fallen.

* Some locations that will experience flooding include...
  Trenton, Bethany, Albany, Stanberry, Princeton, King City, Grant 
  City, Ridgeway, Gilman City, Pattonsburg, Mercer, Eagleville, New 
  Hampton, Cainsville, Spickard, Galt, Irena, Sheridan, Blythedale 
  and Coffey.

Additional rainfall amounts of 0.5 to 1 inch are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4057 9463 4058 9338 4009 9337 4000 9460
      4039 9460 4039 9461 4047 9461 4047 9463

$$

SAW

What forecasters said that day

The local office's own words before this areal flood warning 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 warning went out at Jun 25, 12:36 AM CDT, 41 minutes earlier.

Area forecast discussion, Jun 25, 12:36 AM CDT, 41 minutes before

AREA FORECAST DISCUSSION
National Weather Service Kansas City/Pleasant Hill MO
1236 AM CDT Fri Jun 25 2021

.Discussion...
Issued at 315 PM CDT THU JUN 24 2021

Key Messages:

- Severe weather and flash flooding expected this evening/overnight
across parts of the area.

- A flash flood watch is in effect from Thursday afternoon into
Saturday morning.

Atmospheric recover is underway with a strongly unstable airmass
already in place over far northwest Missouri into eastern Kansas.
The remainder of the area will continue to destabilize as further
surface heating/mixing and moisture advection occurs this
afternoon. Robust convection is expected to develop late this
afternoon into the early evening, most likely in areas of
northeast Kansas into northwest and northern Missouri. The initial
activity will have the potential to be semi-discrete, with the
potential for very large hail and an isolated tornado. Over time,
updrafts will tend to consolidate into one or more line(s) of
thunderstorms and move east/southeast across the CWA. An
increasing threat of damaging straight-line winds will materialize
with these storms. Over time, repeated rounds of convection over
the same areas will be possible into the evening and overnight
hours, with flash flooding a growing concern. The cold front is
expected to make slow progress southeastward on Friday, setting
the stage once again for another round of thunderstorms - with the
potential for severe weather and flash flooding for most areas
across the CWA.

&&

.Aviation...(For the 06Z TAFS through 06Z Friday Night)
Issued at 1231 AM  CDT FRI JUN 25 2021

Mature MCS working east across central and eastern Missouri. Gusty
winds are possible with some of the stronger storms through the
morning hours. Could see some MVFR ceilings through the early
morning hours on Friday, but conditions should improve into the
VFR range as the day wears on. Additional thunderstorms are
possible Friday afternoon, with best chances south of I-70 where
partial clearing is most likely. Have prob 30 group for southern
most TAF site, but potential IXD may be too far north.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...Flash Flood Watch through Saturday morning for KSZ025-057-060-
     102>105.

MO...Flash Flood Watch through Saturday morning for MOZ001>008-
     011>017-020>025-028>033-037>040-043>046-053-054.

&&

Discussion...Blair
Aviation...BT

Hazardous weather outlook, Jun 24, 5:22 AM CDT, 19 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
522 AM CDT Thu Jun 24 2021

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-251030-
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-
522 AM CDT Thu Jun 24 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

A line of thunderstorms will work south through the region this
morning. Gusty winds will be possible with this line of storms.
Additional storms are expected to develop this evening. Some of these
storms will be capable of producing large hail to two inches in
diameter, winds up to 80 mph, locally heavy rainfall leading to flash
flooding and isolated tornadoes.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

 Additional thunderstorms are expected Friday afternoon/evening and
Saturday afternoon/evening. Some of these storms could produce large
hail and damaging winds.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

In the hours before

Local storm report, Jun 24, 11:44 PM CDT, 1 hour 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1144 PM CDT THU JUN 24 2021

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

1130 PM     HEAVY RAIN       4 N SMITHVILLE          39.44N 94.58W
06/24/2021  M2.35 INCH       CLAY               MO   TRAINED SPOTTER

&&

HB

Local storm report, Jun 24, 11:58 PM CDT, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1158 PM CDT THU JUN 24 2021

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

0930 PM     TSTM WND DMG     1 NE GALT               40.14N 93.37W
06/24/2021                   GRUNDY             MO   EMERGENCY MNGR

            POSSIBLE TORNADO. 30 FOOT SECTION OF NEW BARN ROOF RIPPED
            OFF. WHOLE TREES DOWN. 2X4S DRIVEN INTO GROUND.

&&

HB

Local storm report, Jun 25, 12:12 AM CDT, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1212 AM CDT FRI JUN 25 2021

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

1007 PM     FLASH FLOOD      AMAZONIA                39.89N 94.89W
06/24/2021                   ANDREW             MO   EMERGENCY MNGR

            CONSTRUCTION CRANE ON I-29 HAS BEGAN TO TIP DUE TO FLASH
            FLOODING. THE INTERSTATE HAS NOW BEEN CLOSED IN BOTH
            DIRECTIONS DUE TO THE POSSIBILITY THAT THE CRANE MAY FALL
            ONTO THE HIGHWAY.

&&

HB

Local storm report, Jun 25, 12:21 AM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1221 AM CDT FRI JUN 25 2021

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

1215 AM     FLASH FLOOD      AMAZONIA                39.89N 94.89W
06/24/2021                   ANDREW             MO   LAW ENFORCEMENT

            WATER RESCUES AND EVACUATIONS ONGOING. MULTIPLE ROADS
            UNDERWATER.

&&

HB

Local storm report, Jun 25, 12:28 AM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1228 AM CDT FRI JUN 25 2021

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

1226 AM     FLASH FLOOD      4 NW MOUND CITY         40.17N 95.29W
06/25/2021                   HOLT               MO   LAW ENFORCEMENT

            INTERSTATE 29 CLOSED BETWEEN MM 84 AND MM 92 DUE TO
            RUNNING WATER OVER THE INTERSTATE.

&&

JL

Local storm report, Jun 25, 1:11 AM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
111 AM CDT FRI JUN 25 2021

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

0110 AM     HEAVY RAIN       SAINT JOSEPH AIRPORT    39.77N 94.91W
06/25/2021  M4.19 INCH       BUCHANAN           MO   ASOS

            4.19 INCHES OF RAIN RECORDED AT STJ ASOS
            FROM 6 AM THURSDAY TO 1 AM FRIDAY.

&&

BMW

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 7:03 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	42 min
Jun 24, 7:17 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Holt, Nodaway	43 min
Jun 24, 7:24 PM CDT	Special Weather Statement	EAX	Mercer	51 min
Jun 24, 7:39 PM CDT	Flash Flood Warning	EAX	Daviess, DeKalb, Gentry, Grundy, Harrison, Mercer and 1 more	6 hr
Jun 24, 7:45 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, DeKalb, Gentry, Nodaway	45 min
Jun 24, 7:55 PM CDT	Special Weather Statement	EAX	Andrew, DeKalb	50 min
Jun 24, 8:12 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 2 more	48 min
Jun 24, 8:14 PM CDT	Severe Thunderstorm Warning	EAX	Mercer, Putnam	24 min
Jun 24, 8:16 PM CDT	River Flood Warning	EAX	Chariton, Macon	19 hr
Jun 24, 8:16 PM CDT	River Flood Warning	EAX	Andrew, Nodaway	14 hr
Jun 24, 8:16 PM CDT	River Flood Warning	EAX	Andrew, Buchanan	3 days
Jun 24, 8:16 PM CDT	River Flood Warning	EAX	Carroll, Chariton	9 days
Jun 24, 8:27 PM CDT	Flash Flood Warning	EAX	Andrew, Buchanan, Holt	16 hr
Jun 24, 8:37 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Clinton, DeKalb, Holt	38 min
Jun 24, 8:48 PM CDT	Flash Flood Warning Considerable damage threat	EAX	Mercer	3 hr
Jun 24, 8:51 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess, DeKalb, Grundy, Harrison, Linn and 4 more	54 min
Jun 24, 9:00 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Clay, Clinton, DeKalb, Platte and 1 more	60 min
Jun 24, 9:13 PM CDT	Tornado Warning	EAX	Grundy, Sullivan	17 min
Jun 24, 9:29 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Caldwell, Carroll, Chariton, Daviess, Grundy and 7 more	61 min
Jun 24, 9:33 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Carroll, Clay, Clinton, Jackson and 3 more	57 min
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Cooper, Saline	11 days
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Cooper	60 hr
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Carroll	8 days
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Johnson, Pettis	71 hr
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Chariton, Howard, Saline	9 days
Jun 24, 9:35 PM CDT	River Flood Warning	EAX	Cooper, Howard	10 days
Jun 24, 9:40 PM CDT	Tornado Warning	EAX	Putnam, Sullivan	20 min
Jun 24, 9:58 PM CDT	Tornado Warning	EAX	Adair, Sullivan	17 min
Jun 24, 10:18 PM CDT	Tornado Warning	EAX	Carroll, Lafayette, Saline	27 min
Jun 24, 10:24 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Carroll, Chariton, Howard, Lafayette, Linn and 6 more	51 min
Jun 24, 10:25 PM CDT	Areal Flood Advisory	EAX	Buchanan, Clay, Clinton, Platte	3 hr
Jun 24, 10:43 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	32 min
Jun 24, 11:17 PM CDT	Special Weather Statement	EAX	Cooper, Howard, Randolph, Saline	58 min
Jun 25, 12:57 AM CDT	Flash Flood Warning	EAX	Caldwell, Clinton, Daviess, DeKalb	10 hr
Jun 25, 1:28 AM CDT	Areal Flood Advisory	EAX	Carroll, Chariton, Cooper, Howard, Lafayette, Saline	3 hr
Jun 25, 1:34 AM CDT	River Flood Warning	EAX	Clay, Ray	34 hr
Jun 25, 1:59 AM CDT	River Flood Warning	EAX	Andrew, Buchanan	63 hr
Jun 25, 2:02 AM CDT	River Flood Warning	EAX	Buchanan, Platte	27 hr
Jun 25, 2:03 AM CDT	River Flood Warning	EAX	Platte	65 hr
Jun 25, 2:04 AM CDT	River Flood Warning	EAX	Platte	27 hr
Jun 25, 2:07 AM CDT	River Flood Warning	EAX	Jackson, Lafayette, Ray	4 days
Jun 25, 2:10 AM CDT	River Flood Warning	EAX	Carroll, Lafayette, Saline	4 days
Jun 25, 2:11 AM CDT	Flash Flood Warning Considerable damage threat	EAX	Andrew, Holt, Nodaway	10 hr
Jun 25, 2:13 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Saline	8 days
Jun 25, 2:20 AM CDT	Areal Flood Warning	EAX	Atchison, Holt, Nodaway	12 hr
Jun 25, 2:26 AM CDT	River Flood Warning	EAX	Atchison, Holt	6 hr
Jun 25, 2:26 AM CDT	River Flood Warning	EAX	Grundy, Livingston	13 hr
Jun 25, 3:13 AM CDT	Flash Flood Warning Considerable damage threat	EAX	Carroll, Chariton, Howard, Saline	7 hr
Jun 25, 3:59 AM CDT	Special Weather Statement	EAX	Platte	46 min
Jun 25, 4:21 AM CDT	Severe Thunderstorm Warning	EAX	Platte	39 min
Jun 25, 4:28 AM CDT	Flash Flood Warning	EAX	Caldwell, Carroll, Lafayette, Livingston, Ray, Saline	4 hr
Jun 25, 4:46 AM CDT	Areal Flood Advisory	EAX	Clay, Clinton, Jackson, Platte, Ray	3 hr
Jun 25, 4:55 AM CDT	Flash Flood Warning	EAX	Carroll, Lafayette, Ray, Saline	6 hr
Jun 25, 5:24 AM CDT	Flash Flood Warning	EAX	Cooper, Howard	5 hr
Jun 25, 7:25 AM CDT	Areal Flood Advisory	EAX	Cooper, Pettis, Saline	4 hr
Jun 25, 8:13 AM CDT	Areal Flood Warning	EAX	Buchanan, Caldwell, Clay, Clinton, Platte, Ray	3 hr
Jun 25, 8:40 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	8 days
Jun 25, 9:12 AM CDT	Areal Flood Warning	EAX	Caldwell, Carroll, Chariton, Cooper, Daviess, Howard and 7 more	4 days
Jun 25, 9:23 AM CDT	Areal Flood Warning	EAX	Andrew, Buchanan, Clinton, DeKalb, Holt	12 hr
Jun 25, 1:25 PM CDT	Areal Flood Warning	EAX	Buchanan, Clay, Clinton, Platte	9 hr
Jun 25, 2:53 PM CDT	Special Weather Statement	EAX	Cass	67 min
Jun 25, 3:42 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Johnson	33 min
Jun 25, 3:54 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson, Platte	24 min
Jun 25, 3:59 PM CDT	Flash Flood Warning	EAX	Cass	6 hr
Jun 25, 4:14 PM CDT	Severe Thunderstorm Warning	EAX	Platte	46 min
Jun 25, 4:22 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard	38 min
Jun 25, 4:31 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson	44 min
Jun 25, 4:52 PM CDT	Tornado Warning	EAX	Henry, Johnson	23 min
Jun 25, 4:56 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson, Pettis	49 min
Jun 25, 4:57 PM CDT	Flash Flood Warning	EAX	Henry, Johnson	6 hr
Jun 25, 5:06 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	39 min
Jun 25, 5:57 PM CDT	Flash Flood Warning	EAX	Bates, Cass, Henry	6 hr
Jun 25, 6:10 PM CDT	Flash Flood Warning	EAX	Cooper, Howard, Saline	6 hr

Nearby

Areal Flood Warnings in Missouri, 2021 Every areal flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.