Alert archive / Kansas / Flash Flood Warnings in 1998
Flash Flood Warning 22, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Aug 4, 1998, 7:50 PM CDT for Decatur County, Rawlins County, Kansas. It was in force for 12 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
- Aug 4, 1998, 7:50 PM CDT (00:50 UTC)
- Expired
- Aug 5, 1998, 8:00 AM CDT
- In force
- 12 hr
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
Counties Decatur County, KS, Rawlins County, KS
The radar
The Goodland radar (KGLD), 92 km from the middle of the area, began a volume at 00:53 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 150 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
- 19 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 937 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- -38 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 KGLD 050051 FFWGLD KSC039-153-051300- FLOOD WARNING NATIONAL WEATHER SERVICE GOODLAND KS 650 PM MDT (750 PM CDT) TUE AUG 4 1998 ...FLOOD WARNING ISSUED FOR THE NORTH FORK OF THE SAPPA CREEK... INCLUDING WESTERN DECATUR AND SOUTHEAST RAWLINS COUNTY UNTIL 800 AM CDT... AT 730 PM CDT...DECATUR COUNTY ROAD OFFICIALS REPORTED THAT THE NORTH FORK OF THE SAPPA CREEK 4 TO 6 MILES WEST OF OBERLIN WAS WELL OUT OF ITS BANKS. THE RIVER WAS OUT OF ITS BANKS AS FAR WEST AS SOUTHEASTERN RAWLINS COUNTY. THE CREEK WILL REMAIN OUT OF ITS BANKS THROUGH THE EARLY MORNING HOURS ON WEDNESDAY. THE CREEK WILL THEN BEGIN TO RECEDE AFTER 800 AM CDT...REDUCING THE IMPACT OF FLOODING ALONG THE CREEK. DURING THE DARKNESS OF NIGHT...FLOODED SECTIONS OF ROAD MAY NOT BE VISIBLE TO MOTORISTS. SOME ROADWAYS MAY EVEN BE CLOSED. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHXT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. 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 Aug 4, 2:54 PM CDT, 4 hours 56 minutes earlier.
Area forecast discussion, Aug 4, 2:54 PM CDT, 4 hours 56 minutes before
AREA FORECAST DISCUSSION...REMOVED DOUBLE WORDS NATIONAL WEATHER SERVICE GOODLAND KS 154 PM MDT (254 PM CDT) TUE AUG 4 1998 ...GREATEST CHALLENGE IS CHANCE OF RAIN TONIGHT... THE UPPER LEVEL PATTERN THIS MORNING WAS SIMILAR TO YESTERDAY MORNING WITH A LOW OVER EASTERN NEBRASKA. THE LOW HAS BEEN MOVING SOUTH AT 7 MPH AND SHOULD CONTINUE TO TRACK SOUTH SOUTHEAST TO ABOUT KANSAS CITY BY WEDNESDAY MORNING ACCORDING TO 500 MB 24 HOUR HEIGHT CHANGE ANALYSIS. THIS SHOULD KEEP NORTHERLY WINDS INTO THE ATMOSPHERIC MID LEVELS AND KEEP A NEARLY SATURATED AIRMASS OVER THE HIGH PLAINS. LBF 700 MB DEW POINT UP 3 DEGREES C FROM 3/12Z. THE ALL MODELS HAVING GREAT DIFFICULTY WITH CLOUD AND PRECIPITATION FIELDS OVER THE WESTERN HIGH PLAINS DURING THE LAST FEW RUNS. EVEN THE LATEST RUNS (4/12Z-4/18Z) WERE VERY MISREPRESENTATIVE WITH PRECIPITATION FIELDS AT ONLY 6 HOURS INTO THE FORECAST...ESPECIALLY OVER EASTERN COLORADO. THE ETA DOES THE BEST WITH THE DEFORMATION ZONE SET UP BASICALLY OVER INTERSTATE 70 ACROSS THE COUNTY WARNING AREA. BOTH THE NGM AND ETA HAVE GENERALLY BEEN TOO HIGH WITH PRECIPITATION AMOUNTS LAST 3 RUNS...HOWEVER...BURLINGTON COLORADO PICKED UP A QUICK .13 INCH AFTER 18Z. WILL KEEP HIGHEST RAIN CHANCES OVER EASTERN COLORADO TONIGHT WHERE STEEPEST LAPSE RATE AND HEART OF DEFORMATION ZONE ARE EXPECTED TO BE. EXPECT LOSS OF HEATING WILL END SHOWERS OVER EASTERN AREAS (HLC/MCK) BY LATE EVENING. WIDELY SHOWERS EXPECTED AGAIN WEDNESDAY OVER EASTERN COLORADO AS THE UPPER LEVEL PATTERN CHANGES LITTLE. THE CLOUDS SHOULD REMAIN THROUGH WEDNESDAY AFTERNOON...THEN SOME BREAKS ARE EXPECTED BY THURSDAY AS THE UPPER LEVEL RIDGE AFFECTS THE AREA. AS FOR TEMPERATURES...NGM HAVING DIFFICULTY WITH FWC NUMBERS. LAST NIGHT...THE 3/12Z RUN FORECAST A 57 MINIMUM WITH CLOUDY SKIES. THE TEMPERATURES ONLY DROPPED TO 59 UNDER A CLEAR SKY. EXPECT THIS IS DUE TO DEEP MOISTURE WELL INTO MID LEVELS...SO WILL RAISE GUIDANCE SIGNIFICANTLY ABOVE NGM MOS...ESPECIALLY FOR GOODLAND. HIGH TEMPERATURE GUIDANCE VERY UNSTABLE WITH A 9 DEGREE CHANGE AT HLC IN 12 HOURS. WILL TEND TOWARD CURRENT TRENDS WITH A SMALLER DIURNAL RANGE. .GLD...NONE. SKIPPER
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.