Alert archive / Colorado / Flash Flood Warnings in 1998
Flash Flood Warning 14, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Jul 26, 1998, 12:32 AM MDT for Cheyenne County, Colorado. It was in force for 6 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 26, 1998, 12:32 AM MDT (06:32 UTC)
- Expired
- Jul 26, 1998, 7:00 AM MDT
- In force
- 6 hr
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
County Cheyenne County, CO
The radar
The Goodland radar (KGLD), 98 km from the middle of the area, began a volume at 06:35 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 00:00Z, 6.5 hours before the alert went out and 128 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
- 204 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1605 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 28 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 260633 FFWGLD COC017-261230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTION FOR WARNING TYPE NATIONAL WEATHER SERVICE GOODLAND KS 1232 AM MDT SUN JUL 26 1998 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN CHEYENNE COUNTY COLORADO IN EAST CENTRAL COLORADO * UNTIL 700 AM MDT * AT AROUND 11 PM...LAW ENFORCEMENT OFFICIALS REPORTED A THUNDERSTORM WITH VERY HEAVY RAIN WEST OF AROYA...MOVING NORTHEAST AT 15 MPH. * BIG SANDY CREEK WEST OF AROYA. 2 TO 3 FEET OF WATER WAS FLOWING ACROSS ROUTE 94 ABOUT 1 1/2 MILES WEST OF AROYA. MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN. MJV/CBENT &
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 25, 7:41 PM MDT, 4 hours 51 minutes earlier.
Area forecast discussion, Jul 25, 7:41 PM MDT, 4 hours 51 minutes before
AREA FORECAST DISCUSSION...MID EVENING UPDATE
NATIONAL WEATHER SERVICE GOODLAND KS
741 PM MDT (841 PM CDT) SAT JUL 25 1998
LARGE CLUSTER OF TSRA ACTIVITY LOOKS TO BE MOVING SEWD AT 15-20KTS
AND INTO A VERY FAVORABLE MOISTURE FIELD. RATHER THAN BLANKET
THE ENTIRE AREA...WILL WORK WEST TO EAST AND MESH WITH ON-GOING
FFA FOR SRN/SERNMOST ZONES WHERE FFG SHOWS LOW 3HRLY PCPN
RATES.
.GLD...FLASH FLOOD WATCH TONIGHT FOR KS ZNS 001/013/027>029/041/042
...CO ZNS 090>092...AND NEZ079.
VOJTESAKIn the hours before
Special weather statement, Jul 25, 7:17 PM MDT, 5 hours 15 minutes before
KSZ028-029-041-042-260455- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 718 PM MDT (818 PM CDT) SAT JUL 25 1998 ...A FLASH FLOOD WATCH REMAINS IN EFFECT TONIGHT FOR GREELEY... WICHITA...GOVE AND LOGAN COUNTIES IN NORTHWEST KANSAS... MUCH OF THE SHOWER AND THUNDERSTORM ACTIVITY IN NORTHEAST AND EAST CENTRAL COLORADO IS BEGINNING TO MOVE SOUTHEAST TOWARDS THE KANSAS BORDER. NUMEROUS REPORTS OF HEAVY RAINFALL AND FLASH FLOODING HAVE BEEN ASSOCIATED WITH THE LARGE CLUSTER OF STORMS. RAINFALL RATES OF UP TO 3 INCHES PER HOUR HAVE BEEN COMMONPLACE WITHIN THIS CLUSTER OF STORMS. IT IS ANTICIPATED THAT THIS CLUSTER OF STORMS WILL MOVE INTO KANSAS TONIGHT AND AFFECT AREAS CURRENTLY UNDER THE FLASH FLOOD WATCH. ATMOSPHERIC CONDITIONS ACROSS NORTHWEST KANSAS THIS EVENING ARE FAVORABLE FOR HEAVY RAINFALL TO CONTINUE THROUGHOUT THE OVERNIGHT HOURS. THE SMOKY HILL RIVER BASIN...IN GOVE AND LOGAN COUNTIES...WILL BE THE AREA THAT IS MOST SUSCEPTIBLE TO FLOODING TONIGHT....BUT GREELEY AND WICHITA COUNTIES ARE ALSO UNDER THE FLASH FLOOD WATCH. SOIL MOISTURE ... RIVER GAUGE... AND SATELLITE DATA SUGGEST THAT RAINFALL RATES OF 1 TO 1 1/2 INCHES PER HOUR COULD EASILY PRODUCE FLOODING TONIGHT ACROSS ALL FOUR COUNTIES. AT 745 PM CDT...THE RIVER STAGE ON THE SMOKY HILL RIVER AT ELKADER KANSAS...22 MILES SOUTH OF OAKLEY...WAS 5.61 FEET. THE RIVER HAS RISEN 1.25 FEET IN THE PAST SIX HOURS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION OR CABLE TELEVISION FOR THE LATEST WEATHER INFORMATION. VOJTESAK
Special weather statement, Jul 26, 12:01 AM MDT, 31 minutes before
COZ090>092-KSZ001-013-027>029-041-042-NEZ079-260845- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 1200 AM MDT (100 AM CDT) SUN JUL 26 1998 ...A FLASH FLOOD WATCH REMAINS IN EFFECT OVERNIGHT... A LARGE CLUSTER OF THUNDERSTORMS EXTENDS FROM BENKELMAN NEBRASKA TO CHEYENNE WELLS COLORADO. THE CLUSTER OF STORMS WAS MOVING EAST AT 15 MPH AND HAS ALREADY DUMPED 1 TO 3 INCHES OF RAIN ACROSS MUCH OF THE AREA. A SUMMARY OF THE WARNINGS AND ADVISORIES IN EFFECT INCLUDE: THE BIG SANDY CREEK IN WESTERN CHEYENNE COUNTY IS OUT OF ITS BANKS AND A FLOOD WARNING IS IN EFFECT FOR SOUTHWESTERN CHEYENNE COUNTY UNTIL 7 AM MDT.... A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM MDT FOR THE BONNY DAM AREA...US HWY 385 AND MUCH OF EXTREME SOUTHEASTERN YUMA COUNTY...AND AN URBAN FLOOD ADVISORY REMAINS IN EFFECT FOR THE CITY OF GOODLAND UNTIL 210 AM MDT. REPORTS OF MINOR FLOODING INCLUDED... ROUTE 59 SOUTH OF SIEBERT IN KIT CARSON COUNTY AND ALONG ROUTE 27 IN SHERMAN AND CHEYENNE COUNTIES. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION OR CABLE TELEVISION FOR THE LATEST WEATHER INFORMATION. VOJTESAK
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 7:37 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 min |
| Jul 25, 8:26 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 64 min |
| Jul 25, 11:35 PM MDT | Flash Flood Warning | GLD | Yuma | 3 hr |
Nearby
Flash Flood Warnings in Colorado, 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.