Alert archive / Colorado / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 44, NWS Goodland, KS

May 27, 1997Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 27, 1997, 4:40 PM MDT for Yuma County, Colorado. It was in force for 50 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 27, 1997, 4:40 PM MDT (22:40 UTC)
Expired: May 27, 1997, 5:30 PM MDT
In force: 50 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 22:44 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 27, 4:53 PM MDT	Hail 0.75	Joes, 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 12:00Z, 10.7 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1923 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 27, 2:09 PM MDT, 2 hours 31 minutes earlier.

Area forecast discussion, May 27, 2:09 PM MDT, 2 hours 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
209 PM MDT (309 PM CDT) TUE MAY 27 1997

...FORECAST CHALLENGE TO BE PRECIP AND TEMPS THRU THE PCKG...

...SHORT TM...
LIGHT N FLOW AT THE SFC SHOULD LET UP TONIGHT AND THEN BECOME SE BY
MORNING AS TROF OVER FRONT RANGE EASES EAST TOWARDS KS/CO BORDER BY
12Z. THIS SHOULD KILL WINDS AND WITH ABUNDANT LOW LEVEL MOISTURE
AROUND...EXPECT SOME FOG TO DEVELOP. WITH THE LIGHT SFC FLOW...EXPECT
LOWS TO FALL AROUND DEW PT VALUES.

ALL MODELS IN FAIR AGREEMENT ON UPPER AIR PATTERN BUT TIMING OF NEXT
IMPULSE IN NW FLOW IS QUESTIONABLE. WILL LEAN TOWARDS NGM WITH ITS
BETTER INITIALIZATION OF SFC FEATURES AND 850 TEMPS. A WEAK S/W TO
SPIN OFF OF STUBBORN SYSTEM IN NEBRASKA WITH BEST CHANCE FOR SHOWERS
TONIGHT OVER THE WEST HALF OF THE CWA.

...LONG TM...
S/W TO CONT MOVING SLOWLY ACROSS CWA THROUGH THE DAY. MOST ENERGY
SEEMS TO BE COMING FROM 700 MB WITH SOME WEAK LIFT FROM WEAK JET
NOSING IN. THIS MESHES WELL WITH 700-500 QG CONVERGENCE PROGS AND
700 VVS WHICH MOVE INSTABILITY SLOWLY ACROSS THE AREA THROUGH 00Z
THURS. WITH INVERTED TROF AROUND FROM SFC SYSTEM TO THE SOUTH AND
PVA...ENUF LIFT SHOULD RESULT IN CHANCE FOR SHOWERS WITH SOME BREAKS
IN CLOUDS HELPING TO DESTABLIZE THINGS A BIT. SHOWERS LOOK BETTER
THAN T-STORMS WITH LOW LEVELS BEING STABLE FROM TODAY. PRECIP SHOULD
TREND FROM WEST TO EAST AS THE SECOND PD PROGREES. THEN PRECIP
CHANCES INCREASE AGAIN DURING THE THIRD PD AS COLD FRONT APPROACHES.

WILL KEEP CHC FOR SHOWERS ALL AREAS THIRD PD WITH FRONT HELPING TO
INDUCE SOME LIFT. WITH FRONT LAGGING ACROSS THE SE PART OF CWA...WILL
KEEP SLGT CHANCE MENTION THERE FOURTH PD. WILL GO ABOUT A HALF CAT OR
SO LOWER ON HIGHS THURS FROM WED DUE TO SOME FALLING TCKNS NOTED AND
SFC FLO COMING FROM MORE A NELY DIRECTION. WILL FOLLOW FWC FOR THE
FIRST 36 HRS BUT THEN LEAN MORE TOWARDS THE FAN FOURTH PD WITH
CLOUDS AND WEAK UPSLOPE COMPONENT AROUND.

GLD  045/068/048/067 443  HLC  048/070/050/068 -44
CBK  046/069/048/066 443  MCK  046/067/048/066 153
TRB  044/071/046/068 443  ITR  043/067/046/068 432

MARTELLO

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 4:49 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	66 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1997 Every severe thunderstorm warning in 1997

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.