Alert archive / Kansas / Flash Flood Warnings in 1998

Flash Flood Warning 5, NWS Goodland, KS

July 9, 1998Logan County, Sherman County, Wallace County, Kansas

NWS Goodland, KS issued this flash flood warning at Jul 9, 1998, 3:54 PM CDT for Logan County, Sherman County, Wallace County, Kansas. It was in force for 15 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 9, 1998, 3:54 PM CDT (20:54 UTC)
Expired
Jul 10, 1998, 7:00 AM CDT
In force
15 hr
Issued by
NWS Goodland, KS
Area
Whole counties

Counties Logan County, KS, Sherman County, KS, Wallace County, KS

The radar

The Goodland radar (KGLD), 37 km from the middle of the area, began a volume at 20:57 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

Denver, CO (KDNR), launched 12:00Z, 8.9 hours before the alert went out and 170 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, Denver, CO at 12:00Z on 1998-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 91 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, Denver, CO at 12:00Z on 1998-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
91 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
773 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
-50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGLD 092055
FFWGLD
KSC109-181-199-101200-

FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
254 PM MDT (354 PM CDT) THU JUL 9 1998

...FLOOD WARNING HAS BEEN EXTENDED THROUGH TONIGHT FOR THE NORTH FORK
OF THE SMOKY HILL RIVER FROM THE COLORADO BORDER TO MCALLASTER IN
NORTHWEST LOGAN COUNTY...

AT 200 PM MDT (300 PM CDT)...NATIONAL WEATHER SERVICE PERSONNEL
STILL INDICATE THAT THE NORTH FORK OF THE SMOKY HILL RIVER IS
RECEDING...HOWEVER...THE RIVER STILL REMAINS WELL OUT OF ITS BANKS.

THE KANSAS DEPARTMENT OF TRANSPORTATION INDICATE THAT WATER STILL
COVERS SMALL PORTIONS OF KANSAS HIGHWAY 27 SOUTH OF GOODLAND...BUT
THE ROAD IS NOW PASSABLE.

IF NO ADDITIONAL RAINFALL OCCURS...THE RIVER WILL SLOWLY RECEDE...
AND SHOULD BE BACK WITHIN ITS BANKS BY MORNING. HOWEVER THIS AREA IS
UNDER A FLASH FLOOD WATCH...AND ANY ADDITIONAL RAINFALL WILL
AGGRAVATE EXISTING FLOODING CONDITIONS.

MOTORISTS SHOULD BE ESPECIALLY CAREFUL AT NIGHT AND AVOID DRIVING
INTO M@OVING WATER OF UNKNOWN DEPTH...LOW WATER CROSSINGS AND FLOOD
PRONE AREAS.

MANNING

What 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 Goodland, KS wrote its last area forecast discussion before this flash flood warning went out at Jul 9, 2:48 PM CDT, 1 hour 6 minutes earlier.

Area forecast discussion, Jul 9, 2:48 PM CDT, 1 hour 6 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
148 PM MDT (248 PM CDT) THU JUL 9 1998

...THE CHALLENGE THIS FCST PACKAGE IS TSTM POTENTIAL AND
HVY RNFL THREAT...

ALL MODELS HV BEEN DOING POORLY LATELY...HWVR...LIKE THE NGM/AVN
THIS FCST PACKAGE. LTST WTR VAPOR AND VISIBLE LOOP SHOWS SW MONSOON
MOISTURE PLUME OVR MUCH OF CWA...WITH MID LVL DRY PUNCH MOVING N
THRU SE CO AND SW KS. LTST RADAR LOOP ALSO INDCS SOME WK CNVTN OVR
SW NEBRASKA ERN CO...UNDER MN MOISTURE PLUME.

FEEL CNVTN WILL CONT OVR NE CO...SW NEBRASKA TNGT WITH POSSIBLE MCS
DVLPMT SPCLY OVR NRN CWA. THIS FITS WELL WITH BOTH NGM/AVN PRECIP
FIELDS THRU 6Z FRI. ALSO...700 MB OMEGA FIELDS ALSO SUPPORT CNVTN OVR
NE CO AND SW NEBRASKA...WITH E/SE PROPAGATION INDCD BY THE CORFIDI
VECTORS. MODIFIED SOUNDING GIVES CAPES OF OVR 2000 WITH LI OF ARND
-7 FOR GLD AND HLC AND WET BULB TEMPS 2000 FT LWR THAN YDA...CANT
RULE OUT ISOLD SVR WITH VERY HVY RNFL LKLY. CONSIDERING ABNDT
RNFL...CRNT FLDNG OVR PORTIONS OF CWA FM LAST NGTS RNFL AND PW OVR
ONE INCH...WILL ISSUE FLASH FLD WTCH FOR A PTN OF CWA OVNGT. WITH
THIS IN MIND WILL GO SLIGHTLY ABV MOS POPS TNGT WITH MN THREAT N OF
I-70.

STAYING WITH MOS...WILL KEEP POPS IN PACKAGE THRU FRI NGT WITH
MOISTURE PLUME LKLY LINGERING OVR CWA. TEMPS LOOK RESONABLE WITH MOS
DOING EXCELLENT JOB. EXTENDED FCST MODELS SHO POSSIBLE CNVTN ON
SUN...WITH DRYING MONDAY AND TUE.

CONFIDENCE IS RATED BELOW AVERAGE THIS FCST GVN INCONSISTENT
PAST MODEL PERFORMANCE...HWVR...FEEL THAT THE POP COVERAGE IN THE
CRNT PACKAGE IS RESONABLE CONSIDERING AN AVERAGE OF ALL MODEL
PARAMETERS AND PAST EVE RNFL.

.GLD...FLASH FLOOD WATCH FOR NW KS COUNTIES 1...13...14...27...28

MATHEWSON/VJN

In the hours before

Special weather statement, Jul 9, 11:29 AM CDT, 4 hours 25 minutes before
COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-100600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1029 AM MDT (1129 AM CDT) THU JUL 9 1998

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES

CHEYENNE CO   CHEYENNE KS   DECATUR KS     DUNDY NE        GOVE KS
GRAHAM KS     GREELEY KS    HITCHCOCK NE   KIT CARSON CO   LOGAN KS
NORTON KS     RAWLINS KS    RED WILLOW NE  SHERIDAN KS     SHERMAN KS
THOMAS KS     WALLACE KS    WICHITA KS     YUMA CO

SPOTTER ACTIVATION IS NOT ANTICIPATED.

SYNOPSIS:
DEEP GULF MOISTURE WILL STILL REMAIN OVER THE HIGH PLAINS THROUGH
TONIGHT. WIDESPREAD THUNDERSTORM ACTIVITY CAN BE EXPECTED LATE THIS
AFTERNOON THROUGH MUCH OF TONIGHT. LIGHT WINDS AND WARM TEMPERATURES
ALOFT SHOULD PREVENT STORMS FROM BECOMING SEVERE. HOWEVER...SLOW
STORM MOVEMENT COMBINED WITH HIGH ATMOSPHERIC MOISTURE AMOUNTS WILL
LEAD TO THE POTENTIAL OF LOCALLY HEAVY RAINFALL AS WELL AS THE
THREAT FOR LOCALIZED FLOODING.

THE GREATEST THREAT FOR FLOODING IS EXPECTED TO BE OVER NORTHWEST
KANSAS SOUTH OF A LINE FROM ST FRANCIS TO ATWOOD AND NORTH OF A LINE
FROM WESKAN TO RUSSELL SPRINGS WHERE SIGNIFICANT RECENT RAINFALL HAS
SATURATED THE GROUND.

SKIPPER

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 12:39 AM CDTFlash Flood WarningGLDSherman, Wallace4 hr
Jul 9, 9:50 AM CDTFlash Flood WarningGLDLogan, Sherman, Wallace8 hr

Nearby

Flash 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.