Alert archive / Colorado / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 68, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at May 28, 1998, 7:24 PM MDT for Yuma County, Colorado. It was in force for 76 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 28, 1998, 7:24 PM MDT (01:24 UTC)
- Expired
- May 28, 1998, 8:40 PM MDT
- In force
- 76 min
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
County Yuma County, CO
The radar
The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 01:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 28, 8:10 PM MDT | Hail 0.75 | Idalia, CO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.4 hours before the alert went out and 70 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
- 338 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 3401 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 28, 2:13 PM MDT, 5 hours 11 minutes earlier.
Area forecast discussion, May 28, 2:13 PM MDT, 5 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 213 PM MDT (313 PM CDT) THU MAY 28 1998 POPS AND TEMPS...PLUS WILL MCS OUTFLOW IMPACT TEMPS ARE THE MAIN QUESTIONS FOR THIS PACKAGE. HAVE LEANED HEAVILY ON ETA FOR THIS PACKAGE DUE TO BEST INITIALIZATION AND 18Z SFC VERIFICATION. AVN CLOSE ON MASS FEATURES...BUT TOO MOIST AT MID LEVELS. FRONTAL BOUNDARY INTENSIFYING FROM NEAR SCOTT CITY NORTHEAST INTO SOUTH CENTRAL NEBRASKA...WITH SOME MOISTURE POOLING ALONG IT. ETA PROGS MINIMAL MOISTURE ADVECTION ABOVE BOUNDARY LAYER...BUT WITH GOOD SHALLOW MOISTURE LAYER ON SURFACE WITH VERY WARM TO HOT TEMPS ALONG WITH WEAK DYNAMIC...WILL INCORPORATE 20 POPS ALONG NORTH EDGE OF CWFA. BOUNDARY PERSISTS THROUGH PERIOD FOUR...AND POPS CONTINUE IN SAME GENERAL AREA. TEMPS LOOK TO REACH 90S EVERYWHERE EXCEPT NORTH OF BOUNDARY...BUT MIDDLE 80S STILL LOOK REACHABLE DESPITE EAST UPSLOPE FLOW. A BETTER ORGANIZED CHANCE FOR POPS FRIDAY NIGHT...BUT SOUTHERN PART OF CWFA LOOKS TOO DRY FOR CONVECTION. SATURDAY LOOKS LIKE A CLASSIC WARM DAY WITH SOUTHWEST TO WEST WINDS AT ALL LEVELS PUSHING COOLER AND MORE HUMID AIRMASS AWAY FROM AREA. WITH TEMPS RUNNING 15 TO 20 DEGREES ABOVE NORMAL SOUTH OF BOUNDARY FEEL THAT GUIDANCE LEANING A BIT TOO HEAVILY TO CLIMATOLOGY...AND WILL BUMP MAXES ABOVE IT. EXTENDED DISCUSSION FROM NCEP LOOKS GOOD AND WILL NOT DEVIATE. .GLD...NONE ENTWISTLE
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:12 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 63 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1998Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.