Alert archive / Missouri / Flash Flood Warnings in 1998
Flash Flood Warning 25, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Jul 4, 1998, 2:15 AM CDT for 4 counties in Missouri. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1998, 2:15 AM CDT (07:15 UTC)
- Expired
- Jul 4, 1998, 6:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
Counties Adair County, MO, Linn County, MO, Macon County, MO, Sullivan County, MO
The radar
The Pleasant Hill radar (KEAX), 182 km from the middle of the area, began a volume at 07:16 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
Davenport, (KDVN), launched 00:00Z, 7.3 hours before the alert went out and 265 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
- 1700 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 040717
FFWMCI
MOC001-115-121-211-041100-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
215 AM CDT SAT JUL 4 1998
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MACON COUNTY IN MISSOURI
LINN COUNTY IN MISSOURI
ADAIR COUNTY IN MISSOURI
SULLIVAN COUNTY IN MISSOURI
INCLUDING KIRKSVILLE
* UNTIL 600 AM CDT
* AT 210 AM CDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN...OVER AN INCH AND ONE-HALF AN HOUR...STRETCHING FROM HARRIS AND
NEWTOWN ...SOUTH TO EVERSONVILLE ...THEN EAST SPERRY AND TENMILE.
LARGER LARGER CITIES COVERED BY HEAVY RAIN INCLUDE
KIRKSVILLE...MILAN ...LINNEAS AND MACON.
THE THUNDERSTORMS WERE MOVING SOUTHEAST NEAR 20 MPH...BUT WERE
REDEVELOPING BACK OVER THE SAME AREAS. RADAR ESTIMATES OF 4 TO 5
INCHES OF RAIN FROM SOUTHWEST OF BOYTON IN SULLIVAN COUNTY TO
SOUTHWEST OF KIRKSVILLE AN NEAR LA PLATA SINCE MIDNIGHT.
* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE...
PRODUCING ADDITIONAL RAINFALL RATES BETWEEN 1 AND 3 INCHES AN HOUR
THROUGH AT ACROSS MOST OF SULLIVAN AND ADAIR COUNTIES THROUGH 430
AM...AND ACROSS LINN AND MACON COUNTIES THROUGH 530 AM.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS 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 RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
SMITHWhat 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 3, 2:49 PM CDT, 11 hours 26 minutes earlier.
Area forecast discussion, Jul 3, 2:49 PM CDT, 11 hours 26 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 249 PM CDT FRI JUL 3 1998 LOOKING RATHER WET FOR THE NEXT SVRL DAYS. MRNG CNVTN OVR IA/NRN HLF MO HAS TEMPORARILY DISTORTED SFC PAT. LINGERING SHWRS/CLD DEBRIS WILL EXIT FAR ERN CNTYS SHORTLY AFT ZONE ISSUANCE TIME WHILE SCT TSTMS IN THE NW COULD LAST LONGER. SOME PESKY ISOLD CNVTN ALSO OCRG ON ACRS SRN CNTYS AS OUTFLOW BNDRY DISSIPATES. PRIMARY CONCERN/HVY RAIN THREAT APRS IT WILL FOCUS ON NRN MO NWD. PREFER ETA MODEL OVERALL AS IT HANDLES LLVL MSTR BTR. STILL THERE IS THE DRIER AIR FM CNTRL KS W AND SW TO BE CONCERNED ABT. AFTN QPF UPDATE ADDRESSES THIS PTNL PROBLEM. FOR NOW THERE ARE TOO MANY FACTORS POINTING TO A NOCTURNAL MCS DVLPG OVR CNTRL OR SRN NEB AS SLY LLVL JET REFORMS OVR KS AND NOSES INTO SWD MOVG CDFNT. WK VORT LOBE OVR ERN CO EXPCD TO AID CNVTV DVLPMT TNGT AS IT TOPS MID LVL UPR RDG. PLACEMENT OF UPR RDG...APCHG WK MID LVL FEATURE...SFC BNDRY TO FOCUS CNVTN...AND POOLING OF LLVL MSTR SUG THE PTNL FOR LCLLY HVY RAINS OVR FAR NRN MO. COORD WITH STL/TOP/DSM AND WILL ISSUE FLASH FLOOD WATCH FOR TNGT THRU SAT MRNG. NCEP QPF ALSO HIGHLIGHTS THIS AREA AND AGREE WITH THEM. EXPCD CNVTN/CLDNS WILL ALSO PLAY HAVOC WITH TEMPS AND NGM/ETA 2M TEMPS REFLECT THIS. MAY SEE A REPEAT OF NOCTURNAL STORMS SAT NGT/SUN MRNG. BOTH ETA/NGM HINT AT THIS AND GIVEN FLOW PAT SEE NO REASON TO DISAGREE. WILL GO WITH LIKELY POPS THIS PD. THEN TROPICjAL SYS MVG N THRU TX WL BEAR WATCHING FOR THE END OF THE WEEKEND INTO MON. .EAX... .MO...FLASH FLOOD WATCH FOR TNGT/SAT MRNG FOR NRN MO...N OF A STJ TO MACON LN. .KS...NONE JULY
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 3:23 AM CDT | Flash Flood Warning | EAX | Gentry, Harrison, Worth | 3 hr |
| Jul 4, 5:57 AM CDT | Flash Flood Warning | EAX | Adair, Linn, Macon, Sullivan | 4 hr |
| Jul 4, 5:59 AM CDT | Flash Flood Warning | EAX | Gentry, Harrison, Worth | 4 hr |
Nearby
Flash Flood Warnings in Missouri, 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.