Alert archive / Missouri / Flash Flood Watches in 2015

Flash Flood Watch 1, NWS Kansas City, MO

April 8, 201516 counties in Missouri; 5 counties in Kansas

NWS Kansas City, MO issued this flash flood watch at Apr 8, 2015, 2:51 PM CDT for 16 counties in Missouri; 5 counties in Kansas. It took effect at Apr 8, 2015, 4:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Apr 8, 2015, 2:51 PM CDT (19:51 UTC)
In effect from: Apr 8, 2015, 4:00 PM CDT
Expired: Apr 8, 2015, 10:44 PM CDT
In force: 7 hr
Issued by: NWS Kansas City, MO
Flood severity: None

All 21 counties

Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Bates County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Cooper County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Pettis County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saline County, MO

The radar

The Pleasant Hill radar (KEAX), 33 km from the middle of the area, began a volume at 19:52 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 12:00Z, 7.9 hours before the alert went out and 146 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 454 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 263 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.0

Open this sounding in Storm Lab

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 Kansas City, MO wrote its last area forecast discussion before this flash flood watch went out at Apr 8, 12:43 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Apr 8, 12:43 PM CDT, 2 hours 8 minutes before

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Hazardous weather outlook, Apr 8, 5:54 AM CDT, 8 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
554 AM CDT WED APR 8 2015

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-091100-
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-
554 AM CDT WED APR 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND
WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS.

.DAY ONE...TODAY AND TONIGHT

 STRONG STORMS ARE POSSIBLE THIS MORNING WITH LARGE HAIL THREATENING.
 ANOTHER ROUND OF SEVERE STORMS IS EXPECTED THIS AFTERNOON WITH AN
 ATTENDANT THREAT FOR LARGE HAIL...DAMAGING WINDS AND ISOLATED
 TORNADOES...ESPECIALLY FOR AREAS ALONG AND SOUTH OF A LINE FROM THE
 NORTHERN KC METRO TO KIRKSVILLE. STORM COVERAGE IS STILL SOMEWHAT IN
 QUESTION.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/MEDIA/EAX/EMBRIEFING1/EMBRIEFING1.PDF

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

 ADDITIONAL STRONG TO SEVERE STORMS ARE POSSIBLE EARLY THURSDAY
 AFTERNOON...ESPECIALLY EAST OF THE HWY 65 CORRIDOR IN MISSOURI.
 STORMS WILL MOVE EAST OF THE AREA BY EARLY EVENING.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/MEDIA/EAX/EMBRIEFING1/EMBRIEFING1.PDF

In the hours before

Local storm report, Apr 8, 9:43 AM CDT, 5 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
943 AM CDT WED APR 08 2015

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

0941 AM     HAIL             11 S MARSHALL           38.96N 93.20W
04/08/2015  E1.00 INCH       SALINE             MO   PUBLIC

            AT EXIT 78B ON INTERSTATE 70

&&

LAFLIN

Special weather statement, Apr 8, 9:54 AM CDT, 4 hours 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
954 AM CDT WED APR 8 2015

MOZ038-039-081530-
LAFAYETTE MO-SALINE MO-
954 AM CDT WED APR 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SALINE AND
SOUTHEASTERN LAFAYETTE COUNTIES UNTIL 1030 AM CDT...

AT 952 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SWEET SPRINGS...MOVING EAST AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  SWEET SPRINGS AND MARSHALL.

THIS WILL IMPACT

 I-70 BETWEEN MILE MARKERS 59 AND 77.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 3895 9321 3894 9358 3907 9358 3916 9318
TIME...MOT...LOC 1455Z 253DEG 25KT 3898 9346

AEP

Special weather statement, Apr 8, 10:06 AM CDT, 4 hours 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1006 AM CDT WED APR 8 2015

MOZ005-081530-
HARRISON MO-
1006 AM CDT WED APR 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR HARRISON COUNTY UNTIL 1030 AM
CDT...

AT 1001 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR BETHANY...MOVING NORTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  BETHANY...RIDGEWAY...EAGLEVILLE...CAINSVILLE...MOUNT MORIAH AND
  BLYTHEDALE.

THIS WILL IMPACT

 I-35 BETWEEN MILE MARKERS 91 AND 109.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 4048 9378 4047 9377 4042 9376 4026 9377
      4023 9420 4044 9421 4056 9378
TIME...MOT...LOC 1506Z 245DEG 25KT 4029 9406

AEP

Special weather statement, Apr 8, 10:33 AM CDT, 4 hours 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1033 AM CDT WED APR 8 2015

MOZ039-081615-
SALINE MO-
1033 AM CDT WED APR 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SALINE COUNTY UNTIL 1115
AM CDT...

AT 1031 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR MARSHALL...MOVING EAST AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  MARSHALL.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 3913 9293 3913 9294 3912 9295 3910 9294
      3901 9300 3900 9302 3901 9336 3917 9335
      3919 9289
TIME...MOT...LOC 1533Z 274DEG 25KT 3907 9324

AEP

Local storm report, Apr 8, 11:20 AM CDT, 3 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1120 AM CDT WED APR 08 2015

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

1100 AM     HAIL             MARSHALL                39.12N 93.20W
04/08/2015  M1.00 INCH       SALINE             MO   TRAINED SPOTTER

            PEA TO QUARTER SIZE HAIL FALLING.

&&

KBRONIS

Local storm report, Apr 8, 1:45 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
145 PM CDT WED APR 08 2015

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

0953 PM     TORNADO          5 SE AMORET             38.20N 94.52W
04/07/2015                   BATES              MO   EMERGENCY MNGR

            BRIEF TORNADO DESTOYED 60 FOOT MACHINE SHOP AND REMOVED
            SHINGLES OF HOUSE GARAGE. PRELIMINARY RATING EF0.

&&

APIETRYC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 8:39 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	51 min
Apr 7, 9:25 PM CDT	Severe Thunderstorm Warning	EAX	Bates	50 min
Apr 7, 9:42 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Lafayette	48 min
Apr 7, 9:44 PM CDT	Tornado Warning	EAX	Bates	31 min
Apr 7, 10:12 PM CDT	Special Weather Statement	EAX	Carroll	48 min
Apr 7, 10:15 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	45 min
Apr 7, 10:26 PM CDT	Special Weather Statement	EAX	Lafayette	34 min
Apr 7, 10:52 PM CDT	Severe Thunderstorm Warning	EAX	Saline	38 min
Apr 7, 11:00 PM CDT	Special Weather Statement	EAX	Henry	45 min
Apr 8, 5:50 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	40 min
Apr 8, 6:22 AM CDT	Dense Fog Advisory	EAX	Buchanan, Carroll, Cass, Clay, Clinton, Cooper and 8 more	5 hr
Apr 8, 6:29 AM CDT	Special Weather Statement	EAX	Cass	46 min
Apr 8, 6:30 AM CDT	Special Weather Statement	EAX	Buchanan	30 min
Apr 8, 6:36 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	39 min
Apr 8, 7:02 AM CDT	Special Weather Statement	EAX	Ray	28 min
Apr 8, 7:12 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	25 min
Apr 8, 7:14 AM CDT	Severe Thunderstorm Warning	EAX	Jackson, Ray	46 min
Apr 8, 7:45 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	30 min
Apr 8, 7:53 AM CDT	Severe Thunderstorm Warning	EAX	Carroll, Livingston	37 min
Apr 8, 8:02 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	43 min
Apr 8, 8:17 AM CDT	Severe Thunderstorm Warning	EAX	Carroll	28 min
Apr 8, 8:27 AM CDT	Special Weather Statement	EAX	Chariton	33 min
Apr 8, 8:35 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	44 min
Apr 8, 8:37 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Livingston	38 min
Apr 8, 8:48 AM CDT	Special Weather Statement	EAX	Gentry, Nodaway, Worth	42 min
Apr 8, 8:57 AM CDT	Special Weather Statement	EAX	Macon	48 min
Apr 8, 9:02 AM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn, Macon, Randolph	38 min
Apr 8, 9:09 AM CDT	Special Weather Statement	EAX	Pettis	36 min
Apr 8, 9:15 AM CDT	Severe Thunderstorm Warning	EAX	Pettis, Saline	45 min
Apr 8, 9:37 AM CDT	Special Weather Statement	EAX	Daviess	38 min
Apr 8, 9:39 AM CDT	Special Weather Statement	EAX	Cooper	51 min
Apr 8, 9:52 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard, Saline	19 min
Apr 8, 9:54 AM CDT	Special Weather Statement	EAX	Saline	36 min
Apr 8, 10:06 AM CDT	Special Weather Statement	EAX	Harrison	24 min
Apr 8, 10:33 AM CDT	Special Weather Statement	EAX	Saline	42 min
Apr 8, 3:49 PM CDT	Severe Thunderstorm Warning	EAX	Bates	26 min
Apr 8, 4:16 PM CDT	Special Weather Statement	EAX	Bates	44 min
Apr 8, 4:36 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry, Johnson	39 min
Apr 8, 5:24 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Henry, Johnson, Pettis	51 min
Apr 8, 5:30 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	30 min
Apr 8, 5:50 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton	18 min
Apr 8, 6:06 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard, Pettis, Randolph, Saline	54 min
Apr 8, 5:03 AM CDT	Special Weather Statement	EAX	Atchison	27 min
Apr 8, 5:48 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	42 min
Apr 8, 5:10 PM CDT	Special Weather Statement	EAX	Wyandotte	35 min

Nearby

Flash Flood Watches in Missouri, 2015 Flash Flood Watches in Kansas, 2015 Every flash flood watch in 2015

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.