Alert archive / Colorado / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 79, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jun 9, 1998, 7:25 PM MDT for Yuma County, Colorado. It was in force for 60 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
- Jun 9, 1998, 7:25 PM MDT (01:25 UTC)
- Expired
- Jun 9, 1998, 8:25 PM MDT
- In force
- 60 min
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
County Yuma County, CO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 8:03 PM MDT | Thunderstorm Wind 52 | Clarkville, CO | Brief gustnado observed by spotter. |
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
- 675 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1923 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 356 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KGLD 100125 RRA SVRGLD COC125-100225- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GOODLAND KS 725 PM MDT TUE JUN 9 1998 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN YUMA COUNTY IN NORTHEASTERN COLORADO * UNTIL 825 PM MDT * AT 720 PM MDT... GOODLAND DOPPLER RADAR INDICATED VERY STRONG WINDS IN ASSOCIATION WITH A SEVERE THUNDERSTORM 31 MILES NORTHWEST OF WRAY OR 19 MILES NORTH OF YUMA. THE AREA OF STRONG WINDS ARE MOVING SOUTHEAST AT 40 TO 45 MPH AND COULD PRODUCE GUSTS IN EXCESS OF 60 MPH ACROSS NORTHERN YUMA COUNTY. * THE SEVERE THUNDERSTORM WILL BE NEAR... CLARKVILLE AROUND 730 PM MDT THIS IS A DANGEROUS STORM! STAY INDOORS AWAY FROM WINDOWS. THE STRONG SHEAR ALONG THIS GUST FRONT COULD PRODUCE A SERIES OF BRIEF AND SHORT-LIVED TORNADOES. THE AREAS AFFECTED BY THIS STORM WILL BE NORTH OF US HIGHWAY 34. VDOJTESAK
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 Jun 9, 1:28 PM MDT, 5 hours 57 minutes earlier.
Area forecast discussion, Jun 9, 1:28 PM MDT, 5 hours 57 minutes before
AREA FORECAST DISCUSSION...CORRECTED FOR 3RD PARAGRAPH WORDING NATIONAL WEATHER SERVICE GOODLAND KS 128 PM MDT (228 PM CDT) TUE JUN 9 1998 ...CHALLENGE TO BE TSTORM CHANCES THROUGH 60 HRS AND WINDS/TEMPS WITH PESKY SFC TROF MEANDERING AROUND CWA... AWIPS BUILD 4.0 BEING INSTALLED TODAY...HAD TO RESORT TO OLD SCHOOL ANALYSIS OFF AFOS AND GRIDDS TO GATHER MODEL DATA...THUS PACKAGE TAKING MORE TIME. DEEP H5 TROF REMAINS OVER NV/UT VCNTY WITH H2 90- 110KT JET SURGING INTO CENTRAL KS. CONVECTION ALREADY FIRING OVER NRN CO/SRN WY WHERE DIFFLUENT FLO EXISTS AT H5 AND DENVER CYCLONE DEEPENING DURING THE DAY. ALL MDLS INTIALLY HANDLE UPPER AIR WELL... BUT GOING WITH ETA/MM5 BLEND AS NGM SHOWING USUAL NORTH BIAS WITH LEE CYCLONGENESIS THIS TIME OF YEAR AND AVN HAVING ITS TROUBLES AT THE SFC DUE TO RESOLUTION. ETA SHOWS H7/H5 DIFFLUENCE OVER NERN CO/SWRN WY/NE PANHANDLE REGION FOR THIS EVENING WITH S/W EJECTING OUT OF WRN TROF. AS WRN TROF DEEPENS...H2 JET PREVIOUSLY MENTION WILL MOVE NWD PUTTING FA INTO FAVORABLE LF QUAD. BEST H7 VVS NOTED OVER NW ZNS WITH CAPES 1500- 2500 OFF MODIFIED SOUNDINGS...LIS -2-(-4) DEG C AND LITTLE IN THE WAY OF CAP OVER ERN COLORADO. POPS HIGHEST TONIGHT NW FA...THEN TAPERED DOWN IN SE ZNS. FEEL MCS FORMATION LATER TONIGHT OVER SRN NEBRASKA IS A REAL POSSIBILITY AS SLY LLJ PROGGED TO 45 KTS 06Z-12Z NOSING INTO NE CO/SW NEB. THIS SHOULD FEED GOOD THETA-E INTO ANY TSTORMS THAT VENTURE ONTO THE HIGH PLAINS. IN OUT PDS...SHIFTY WINDS BETWEEN W-SE WITH REFORMATION OF SFC TROF A PROBLEM. FAN/FWC MOS SEEM TO HANDLE POPS AND TEMPS FAIRLY WELL...BUT AM CONCERNED ABOUT HIGHS TOMORROW IF ANY DEEP OUTFLO ENTERS CWA IN LIEU OF POSSIBLE MCS TONIGHT. CHANCE FOR STORMS EXISTS ONCE AGAIN 3RD/4TH PDS AS IMPRESSIVE H5 S/W RIDES OVER FA ON HEELS STRONG H2 JET JUST TO OUR SOUTH. STILL LOOKING AT EXTENDED...BUT LOOKS LIKE CHANCE OF STORMS WILL EXIST THROUGH THE WEEKEND WITH H7-H5 COLD POOL REMAINING CLOSE BY. .GLD...NONE. MARTELLO
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 8:05 PM MDT | Tornado Warning | GLD | Yuma | 50 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.