Alert archive / Colorado / Flash Flood Warnings in 1998
Flash Flood Warning 18, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Jul 29, 1998, 6:50 PM MDT for Kit Carson County, Yuma County, Colorado. 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 29, 1998, 6:50 PM MDT (00:50 UTC)
- Expired
- Jul 29, 1998, 10:50 PM MDT
- In force
- 4 hr
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
Counties Kit Carson County, CO, Yuma County, CO
The radar
The Goodland radar (KGLD), 77 km from the middle of the area, began a volume at 00:51 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, 0.8 hours before the alert went out and 66 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
- 147 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1563 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGLD 300051 FFWGLD COC063-125-300450- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE GOODLAND KS 650 PM MDT WED JUL 29 1998 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN KIT CARSON COUNTY IN EAST CENTRAL COLORADO SOUTHEASTERN YUMA COUNTY IN NORTHEASTERN COLORADO * UNTIL 1050 PM MDT * AT 645 PM MDT...LAW ENFORCEMENT OFFICIALS REPORTED WATER FLOWING OVER SECTIONS OF HIGHWAY 385 NORTH OF BURLINGTON. DITCHES HAVE BEEN FILLING UP QUICKLY AND MORE RAINFALL IS EXPECTED THROUGH LATE EVENING. BONNY AND LANDSMAN CREEKS SHOULD RISE QUICKLY WITH THIS HEAVY RAINFALL. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! MLC/KPL
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 29, 2:51 PM MDT, 3 hours 59 minutes earlier.
Area forecast discussion, Jul 29, 2:51 PM MDT, 3 hours 59 minutes before
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE GOODLAND KS 251 PM MDT (351 PM CDT) WED JUL 29 1998 FORECAST PROBLEMS WL BE CHC AND AMOUNT OF PCPN THRU THE PD. AM RUNNING BEHIND DUE TO FRUITFALL PHONE COORDINATION. COORD WAS WITH DDC AND HSI. HAVE RCVD ISOLATED VERY HEAVY RNFL AMOUNTS IN NE PTN OF CWA THIS AFTN. SINCE HVY AMOUNTS ISOLD IN NATURE AND HAVE BEEN DRY FOR A FEW DAYS...WL OPT TO NOT ISSUE A FFA ATTM...AND JUST PUT IN LOCALLY HEAVY RNFL. WL UNDOUBTEDLY RECEIVE HVY RNFL BUT DO NOT FEEL CONFIDENT ABT EXACT AREA OF CONCERN. NE PTN CWA WL BE ON TOP OF LIST. WL TELL EVENING SHIFT TO MONITOR VERY CLOSELY. MODELS NOT CATCHING EVERYTHING. NRN FRONTAL BNDRY HAS SAGGED OVR NRN FRINGE OF CWA. THAT BNDRY PLUS SHEAR AXIS/SMALL VORT PUSHING IN FM THE SW. GLD WSR-88D AND SFC OBS SHOWG ADDITIONAL DVLPMENT TO THE S AND SW OF GLD...AND A LINE FROM NRN FRONT RANGE OF CO INTO EXTRM SW PTN OF NE PNHANDLE. DVLPMENT CLOSE TO GLD IS PROBABLY DUE TO SRN FRONTAL BNDRY THAT HAS BEEN PULLED NORTH DUE TO APRCHG STRONG S/W FROM THE WEST. ETA/NGM BLEND APPEARS TO BEST HANDLE THE SITN. NGM DOES BETTER AT THE SFC AND INITD BEST WITH ETA DOING BETTER ON THE THERMAL FEATURES AND MSTR FM 700 MB DOWN WHICH WAS COOLER AND MORE MOIST. NGM DID A LTL BETTER WITH S/W FEATURES AND ETA WITH THE JET. AM CONCERNCED TONIGHT THAT MODELS ARE NOT STRONG ENUF WITH APRCHG S/W AND SFC BNDRY FM THE NW PER SATL AND SFC OBSERVATIONS. BLV LIFT WL BE STRONGER TONIGHT THAN WHAT MODELS INDICATE. BASICALLY WL GO WETTER THAN NGM MOS AND CLOSER TO FAN GUIDANCE THRU PD...ESPECIALLY FOR THE NIGHTTIME HOURS. THIS WL BE DIURNALLY TRENDED THRU FRI DUE TO LESS DYNAMICS DURG THE DAY THEN PCPN PICKING UP LATE IN THE AFTERNOON WITH INCREASED DYNAMICS...MSTR CONVERGENCE...AND WHATEVER HEATING TAKES PLACE. NGM DID NOT DO WELL IN A SMLR PCPN SCENARIO LAST WEEK. ALL THIS MEANS UPSLOPE FLOW...CLDY SKIES...AREAS OF FOG...MAX TEMPS COOLER THAN THE NGM MOS MAXES...AND MINS WARMER THAN NGM MOS THRU THE PD. .GLD...NONE. BULLER
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:57 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 48 min |
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.