Alert archive / Missouri / Flash Flood Warnings in 2017

Flash Flood Warning 18, NWS Kansas City, MO

July 27, 20175 counties in Missouri

NWS Kansas City, MO issued this flash flood warning at Jul 27, 2017, 1:32 AM CDT for 5 counties in Missouri. It was in force for 7 hr. 6 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
Jul 27, 2017, 1:32 AM CDT (06:32 UTC)
Expired
Jul 27, 2017, 8:30 AM CDT
In force
7 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Flood severity
None

Counties Johnson County, MO, Lafayette County, MO, Pettis County, MO, Ray County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 50 km from the middle of the area, began a volume at 06:36 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

TimeReportWhereRemark
Jul 27, 1:54 AM CDTFLASH FLOOD1 Ne Odessa, MOINTERSTATE 70 CLOSED AT 38 MILE MARKER DUE TO FLOODING.
Jul 27, 2:16 AM CDTFLASH FLOODWellington, MOWATER OVER HIGHWAY 224 NEAR WELLINGTON.
Jul 27, 3:30 AM CDTFLASH FLOOD2 E Odessa, MOCITIZEN RESCUED FROM THE TOP OF A CAR SWEPT INTO A DITCH.
Jul 27, 3:49 AM CDTFLASH FLOODHigginsville, MONEARLY EVERY ROAD IN LAFAYETTE COUNTY IS EXPERIENCING FLOODING. LAW ENFORCEMENT REPORTS FLOODING IN SPOTS THAT HAVE NEVER FLOODED BEFORE.
Jul 27, 4:41 AM CDTFLASH FLOOD1 W Bates City, MOWATER RESCUE ON GOLDEN BELT ROAD AT HORSESHOE CREEK. 7.11 INCHES STORM TOTAL.
Jul 27, 5:38 AM CDTFLASH FLOOD2 Sse Bates City, MOHWY TT IMPASSIBLE WITH WATER RESCUE IN PROGRESS.

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

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 6.5 hours before the alert went out and 166 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2017-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 787 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2017-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
787 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
1122 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
464 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.6

Open this sounding in Storm Lab

The text

As transmitted.

147 
WGUS53 KEAX 270632
FFWEAX
MOC101-107-159-177-195-271330-
/O.NEW.KEAX.FF.W.0018.170727T0632Z-170727T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
132 AM CDT THU JUL 27 2017

The National Weather Service in Pleasant Hill has issued a

* Flash Flood Warning for...
  Pettis County in central Missouri...
  Southern Ray County in west central Missouri...
  Southwestern Saline County in central Missouri...
  Lafayette County in west central Missouri...
  Northeastern Johnson County in west central Missouri...

* Until 830 AM CDT Thursday

* At 131 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 1 to 3 inches of rain have 
  fallen. Another round of storms moving into the area will likely 
  produce another 2 to 3 inches of rain. Flash flooding is expected 
  to begin shortly.

* Some locations that will experience flooding include...
  Sedalia, Warrensburg, Excelsior Springs, Oak Grove, Richmond,
  Odessa, Higginsville, Lexington, Windsor, Knob Noster, Concordia,
  Sweet Springs, Whiteman Air Force Base, La Monte, Waverly, Orrick,
  Wellington, Smithton, Hardin and Green Ridge.

This includes Interstate 70 in Missouri between mile markers 30 and
84.
 
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.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3851 9351 3856 9351 3889 9411 3914 9410
      3917 9414 3918 9419 3921 9417 3921 9421
      3934 9421 3926 9376 3921 9375 3921 9371
      3924 9366 3921 9348 3893 9305 3854 9308
      3854 9328 3851 9330

$$

CDB
2 follow-up statements
266 
WGUS73 KEAX 270821
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
321 AM CDT THU JUL 27 2017

MOC101-107-159-177-195-271330-
/O.CON.KEAX.FF.W.0018.000000T0000Z-170727T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pettis MO-Ray MO-Saline MO-Lafayette MO-Johnson MO-
321 AM CDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 AM CDT FOR
PETTIS...SOUTHERN RAY...SOUTHWESTERN SALINE...LAFAYETTE AND
NORTHEASTERN JOHNSON COUNTIES...

At 319 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Widespread rain rates of 2 to 3 inches 
per hour are occurring. Radar estimates that as much as 7 inches of 
rain has fallen through western Lafayette County.  Flash flooding is 
occurring or expected to begin shortly.

Some locations that will experience flooding include...
Sedalia, Warrensburg, Excelsior Springs, Oak Grove, Richmond, Odessa,
Higginsville, Lexington, Windsor, Knob Noster, Concordia, Sweet
Springs, Whiteman Air Force Base, La Monte, Waverly, Orrick,
Wellington, Smithton, Hardin and Green Ridge.

This includes Interstate 70 in Missouri between mile markers 30 and
84.
 
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.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3851 9351 3856 9351 3889 9411 3914 9410
      3917 9414 3918 9419 3921 9417 3921 9421
      3934 9421 3926 9376 3921 9375 3921 9371
      3924 9366 3921 9348 3893 9305 3854 9308
      3854 9328 3851 9330

$$

CDB
043 
WGUS73 KEAX 271115
FFSEAX

Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
615 AM CDT THU JUL 27 2017

MOC101-107-159-177-195-271330-
/O.CON.KEAX.FF.W.0018.000000T0000Z-170727T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pettis MO-Ray MO-Saline MO-Lafayette MO-Johnson MO-
615 AM CDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 AM CDT FOR
PETTIS...SOUTHERN RAY...SOUTHWESTERN SALINE...LAFAYETTE AND
NORTHEASTERN JOHNSON COUNTIES...

At 615 AM CDT, Flash flooding is occurring. Do not drive into flood 
waters. Radar estimates and rain gauges show between 3 and 8 inches 
of rain fell across the warned area. The rain has ended but flash 
flooding is ongoing.

Some locations that will experience flooding include...
Sedalia, Warrensburg, Excelsior Springs, Oak Grove, Richmond, Odessa,
Higginsville, Lexington, Windsor, Knob Noster, Concordia, Sweet
Springs, Whiteman Air Force Base, La Monte, Waverly, Orrick,
Wellington, Smithton, Hardin and Green Ridge.

This includes Interstate 70 in Missouri between mile markers 30 and
84.
 
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.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.

&&

LAT...LON 3851 9351 3856 9351 3889 9411 3914 9410
      3917 9414 3918 9419 3921 9417 3921 9421
      3934 9421 3926 9376 3921 9375 3921 9371
      3924 9366 3921 9348 3893 9305 3854 9308
      3854 9328 3851 9330

$$

CDB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 9:13 PM CDTAreal Flood AdvisoryEAXClay, Platte3 hr
Jul 26, 9:50 PM CDTFlash Flood WarningEAXClay, Jackson, Platte4 hr
Jul 26, 11:01 PM CDTFlash Flood WarningEAXClay, Jackson, Ray3 hr
Jul 27, 1:09 AM CDTSpecial Weather StatementEAXPettis51 min
Jul 27, 1:36 AM CDTFlash Flood WarningEAXClay, Jackson, Platte7 hr
Jul 27, 2:27 AM CDTFlash Flood WarningEAXJackson6 hr
Jul 27, 2:49 AM CDTRiver Flood WarningEAXJackson28 hr
Jul 27, 2:49 AM CDTRiver Flood WarningEAXJackson33 hr
Jul 27, 3:11 AM CDTFlash Flood WarningEAXCass, Johnson6 hr
Jul 27, 3:37 AM CDTRiver Flood WarningEAXJackson25 hr
Jul 27, 3:39 AM CDTRiver Flood WarningEAXJohnson, Pettis53 hr
Jul 27, 3:39 AM CDTRiver Flood WarningEAXCooper, Saline6 days
Jul 27, 4:33 AM CDTFlash Flood WarningEAXBates, Cass, Henry4 hr
Jul 27, 4:37 AM CDTRiver Flood WarningEAXJackson28 hr
Jul 27, 4:37 AM CDTRiver Flood WarningEAXJackson30 hr
Jul 27, 4:54 AM CDTRiver Flood WarningEAXJackson36 hr
Jul 27, 5:37 AM CDTRiver Flood WarningEAXClay, Platte27 hr
Jul 27, 5:51 AM CDTFlash Flood WarningEAXBates4 hr
Jul 27, 6:30 AM CDTRiver Flood WarningEAXClay, Ray29 hr
Jul 27, 7:23 AM CDTRiver Flood WarningEAXCass, Henry, Johnson3 days
Jul 27, 7:23 AM CDTRiver Flood WarningEAXJackson34 hr
Jul 27, 7:41 AM CDTRiver Flood WarningEAXJackson34 hr
Jul 27, 7:41 AM CDTRiver Flood WarningEAXJackson34 hr
Jul 27, 7:41 AM CDTRiver Flood WarningEAXJackson17 hr
Jul 27, 7:41 AM CDTRiver Flood WarningEAXJackson37 hr
Jul 27, 7:41 AM CDTRiver Flood WarningEAXJackson37 hr
Jul 27, 7:54 AM CDTRiver Flood WarningEAXBates, Cass, Henry4 days
Jul 27, 8:17 AM CDTFlash Flood WarningEAXClay, Jackson, Johnson, Lafayette, Platte, Ray3 hr
Jul 27, 8:55 AM CDTAreal Flood WarningEAXBates, Cass, Johnson5 hr
Jul 27, 9:19 AM CDTRiver Flood WarningEAXCarroll, Lafayette, Saline62 hr
Jul 27, 9:19 AM CDTRiver Flood WarningEAXCarroll, Chariton, Saline66 hr
Jul 27, 9:35 AM CDTAreal Flood WarningEAXBates4 hr
Jul 27, 10:55 AM CDTAreal Flood WarningEAXCass, Clay, Jackson, Johnson, Lafayette, Platte and 1 more3 hr
Jul 27, 1:43 PM CDTAreal Flood WarningEAXClay, Jackson, Platte9 hr
Jul 27, 1:46 PM CDTAreal Flood WarningEAXBates, Cass, Johnson, Lafayette, Ray48 hr

Nearby

Flash Flood Warnings in Missouri, 2017Every flash flood warning in 2017

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.