Alert archive / Missouri / Flash Flood Warnings in 1998
Flash Flood Warning 31, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Jul 26, 1998, 4:57 AM CDT for Jackson County, Missouri; Wyandotte County, Kansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jul 26, 1998, 4:57 AM CDT (09:57 UTC)
- Expired
- Jul 26, 1998, 8:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Wyandotte County, KS, Jackson County, MO
The radar
The Pleasant Hill radar (KEAX), 44 km from the middle of the area, began a volume at 09:56 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, 10.0 hours before the alert went out and 90 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
- 21 J/kg
- Mixed-layer CIN
- -302 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 261000
FFWMCI
KSC209-MOC095-261300-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
457 AM CDT SUN JUL 26 1998
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WYANDOTTE COUNTY IN KANSAS
NORTHERN JACKSON COUNTY IN MISSOURI
INCLUDING KANSAS CITY
* UNTIL 800 AM CDT
* AT 457 AM CDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN OVER EDWARDSVILLE...OR ABOUT 12 MILES NORTH OF OLATHE...MOVING
EAST AT 30 MILES PER HOUR.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. RESIDENCES AND BUILDINGS
ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLASH FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISIN0G WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
LAT...LON 3918 9487 3909 9496 3903 9459 3894 9423
3915 9424 3914 9451What forecasters said that day
The local office's own words before this flash 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 flash flood warning went out at Jul 26, 4:10 AM CDT, 47 minutes earlier.
Area forecast discussion, Jul 26, 4:10 AM CDT, 47 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 410 AM CDT SUN JUL 26 1998 GIVEN ONGOING CONVECTION...DECIDED TO ISSUE A FLASH FLOOD WATCH FOR PORTION OF FORE@CAST AREA...FROM AROUND KANSAS CITY TO BOONVILLE AND SEDALIA. .EAX... KS...FFA FOR EAST CENTRAL KANSAS MO...FFA FOR WEST CENTRAL AND CENTRAL MISSOURI PC
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 6:50 AM CDT | Flash Flood Warning | EAX | Pettis | 3 hr |
| Jul 26, 7:55 AM CDT | Flash Flood Warning | EAX | Jackson | 2 hr |
| Jul 26, 7:55 AM CDT | Flash Flood Warning | EAX | Johnson, Lafayette | 2 hr |
Nearby
Flash Flood Warnings in Missouri, 1998Flash Flood Warnings in Kansas, 1998Every flash flood warning in 1998
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.