Alert archive / Missouri / Flash Flood Watches in 2015

Flash Flood Watch 12, NWS Kansas City, MO

July 19, 201535 counties in Missouri; 5 counties in Kansas

NWS Kansas City, MO issued this flash flood watch at Jul 19, 2015, 3:47 AM CDT for 35 counties in Missouri; 5 counties in Kansas. It took effect at Jul 19, 2015, 7:00 AM CDT. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Jul 19, 2015, 3:47 AM CDT (08:47 UTC)
In effect from
Jul 19, 2015, 7:00 AM CDT
Expired
Jul 20, 2015, 12:19 PM CDT
In force
29 hr
Issued by
NWS Kansas City, MO
Flood severity
None
All 40 counties

Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 98 km from the middle of the area, began a volume at 08:49 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 00:00Z, 8.8 hours before the alert went out and 163 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 2015-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3374 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2015-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.193958Sfc1 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
3374 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1638 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.7
Supercell composite
16.8

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 Jul 19, 3:27 AM CDT, 20 minutes earlier.

Area forecast discussion, Jul 19, 3:27 AM CDT, 20 minutes before
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Hazardous weather outlook, Jul 18, 4:53 AM CDT, 22 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
453 AM CDT SAT JUL 18 2015

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-191000-
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-
453 AM CDT SAT JUL 18 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

 ISOLATED TO SCATTERED SHOWERS TODAY ARE NOT EXPECTED TO BE SEVERE.
 HEAT INDICES WILL CLIMB TO BETWEEN 101 AND 105 ACROSS THE AREA.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

 A FEW SEVERE THUNDERSTORMS ARE POSSIBLE SUNDAY AND MONDAY. FLOODING
 RAINS ARE POSSIBLE SUNDAY INTO MONDAY.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

In the hours before

Special weather statement, Jul 19, 12:45 AM CDT, 3 hours 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1245 AM CDT SUN JUL 19 2015

MOZ004-005-014-190630-
HARRISON MO-GENTRY MO-DAVIESS MO-
1245 AM CDT SUN JUL 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HARRISON...
NORTHWESTERN DAVIESS AND EAST CENTRAL GENTRY COUNTIES UNTIL 130 AM
CDT...

AT 1244 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR NEW HAMPTON...OR NEAR ALBANY...MOVING EAST AT 15 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BETHANY...NEW HAMPTON AND MCFALL.

THIS INCLUDES INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 82 AND
97.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CDT FOR
NORTHWESTERN MISSOURI.

LAT...LON 4016 9435 4028 9427 4035 9400 4018 9399
      4006 9413
TIME...MOT...LOC 0544Z 280DEG 13KT 4021 9425

LEIGHTON
Special weather statement, Jul 19, 1:48 AM CDT, 1 hour 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
148 AM CDT SUN JUL 19 2015

MOZ005-014-015-190730-
HARRISON MO-GRUNDY MO-DAVIESS MO-
148 AM CDT SUN JUL 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HARRISON...
SOUTHWESTERN GRUNDY AND NORTHEASTERN DAVIESS COUNTIES UNTIL 230 AM
CDT...

AT 148 AM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR TRENTON TO 7 MILES
WEST OF GILMAN CITY...AND MOVING SOUTHEAST AT 10 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
TRENTON...JAMESPORT...GILMAN CITY...LAREDO...COFFEY...JAMESON...
TINDALL AND BRIMSON.

THIS INCLUDES INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 84 AND
87.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THESE STORMS 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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CDT FOR
NORTH CENTRAL MISSOURI.

LAT...LON 3997 9339 3997 9403 4020 9404 4022 9360
TIME...MOT...LOC 0648Z 331DEG 9KT 4016 9365 4015 9401

LEIGHTON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 12:45 AM CDTSpecial Weather StatementEAXGentry45 min
Jul 19, 1:22 AM CDTFlash Flood WarningEAXDaviess, Gentry, Harrison6 hr
Jul 19, 1:32 AM CDTFlash Flood WarningEAXGrundy, Mercer, Sullivan6 hr
Jul 19, 1:48 AM CDTSpecial Weather StatementEAXGrundy42 min
Jul 19, 2:39 AM CDTFlash Flood WarningEAXAdair, Linn, Macon, Sullivan6 hr
Jul 19, 3:36 AM CDTHeat AdvisoryEAXBates, Henry17 hr
Jul 19, 6:38 AM CDTAreal Flood AdvisoryEAXCarroll, Chariton, Howard, Linn, Livingston, Macon and 1 more3 hr
Jul 19, 6:40 AM CDTAreal Flood AdvisoryEAXAndrew, Holt3 hr
Jul 19, 7:35 AM CDTSevere Thunderstorm WarningEAXGentry, Nodaway, Worth25 min
Jul 19, 8:05 AM CDTSpecial Weather StatementEAXMacon40 min
Jul 19, 8:16 AM CDTSpecial Weather StatementEAXWorth44 min
Jul 19, 8:24 AM CDTFlash Flood WarningEAXChariton, Linn3 hr
Jul 19, 9:17 AM CDTFlash Flood WarningEAXDaviess, Grundy, Harrison3 hr
Jul 19, 11:00 AM CDTRiver Flood WarningEAXRay72 hr
Jul 19, 11:00 AM CDTRiver Flood WarningEAXClay, Ray53 hr
Jul 19, 11:00 AM CDTRiver Flood WarningEAXHoward59 hr
Jul 19, 11:16 AM CDTRiver Flood WarningEAXDaviess, Gentry56 hr
Jul 19, 11:16 AM CDTRiver Flood WarningEAXDaviess, Livingston60 hr
Jul 19, 11:37 AM CDTAreal Flood WarningEAXCarroll, Chariton, Linn, Livingston, Macon, Randolph9 hr
Jul 19, 12:22 PM CDTRiver Flood WarningEAXChariton, Macon61 hr
Jul 19, 2:47 PM CDTRiver Flood WarningEAXJackson, Lafayette, Ray3 days
Jul 19, 11:00 AM CDTRiver Flood WarningEAXAtchison, Leavenworth57 hr

Nearby

Flash Flood Watches in Missouri, 2015Flash Flood Watches in Kansas, 2015Every 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.