Alert archive / Colorado / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 95, NWS Goodland, KS

June 21, 1995Yuma County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at Jun 21, 1995, 6:01 PM MDT for Yuma County, Colorado. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jun 21, 1995, 6:01 PM MDT (00:01 UTC)
Expired
Jun 21, 1995, 6:50 PM MDT
In force
49 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 00:06 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, 0.0 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 1995-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 810 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1995-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
810 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
2800 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 Jun 21, 2:25 PM MDT, 3 hours 36 minutes earlier.

Area forecast discussion, Jun 21, 2:25 PM MDT, 3 hours 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
225 PM MDT (325 PM CDT) WED JUN 21 1995

THE FCST PROBLEM WILL BE THE CHC OF TSTMS WHICH ENTIRELY DEPENDS ON
THE STRENGTH OF THE CAP.  ACTIVITY THIS MRNG DUE TO CAP HAVG
WEEKENED SLIGHTLY AND S/W THAT MOVED THRU HAVG ENUF COLD AIR TO SET
THINGS OFF.  OVERALL PREFER THE ETA AGAIN DUE TO SATL...UPR AIR
ANAL...AND SFC ANAL VERIFYING YDAS 00Z RUN BETTER...AND ALSO SHOWG
12Z RUN BEING CLOSER TO WHAT IS GOING ON RIGHT NOW.  HWVR...DO
SLIGHTLY FAVOR THE NGM FOR S/W DETAIL SINCE IT SHOWS THE WEAK S/WS
THAT ARE UPSTREAM A LTL BETTER.

LEE TROF/DRY LINE STILL OVR ERN CO/NE PANHANDLE.  SATL SHOWS S/W
EXTENDG FM WRN CO INTO CNTRL NM.  TSTMS ARE ALREADY FIRING UP IN NM.
ALTHOUGH NOT SHOWG UP WELL ON SATL...UPR AIR ANAL DID SHOW ANOTHER
S/W OVR AZ.  S/WS WITH BNDRIES SHOULD SET OFF TSTMS.  HWVR...BASED
ON UPR AIR ANAL AND ADAP...CAP STRENGTH APPEARS TO HAVE COME UP A
LTL...PLUS CIRRUS SHIELD HAS HELD BACK TEMPS SOME.  ETA TIME SCNTS OF
TEMP SHOWS THE STRENGTHENING CAP.

HWVR...LATER ON TON...CAP WEAKENS AGAIN AND COULD ALLOW MORE
OVERNIGHT CONVECTION.  CONSIDERING ALL FACTORS...CHC EXISTS FOR
TSTMS THRU THE NIGHT.  FOR THU...CONVECTION SHOULD HOLD OFF TO THE
LATE AFTN/EARLY WITH THE ARRIVAL OF FRONT...PVA...AND COOLING ALFT.

DUE TO LATER ARRIVAL OF FRONT...WINDS WILL STAY FM THE SOUTH.  MOS
CONTS TO DO A GOOD JOB ON MINS.  LOOKING AT DPS TO THE SOUTH
COMBINED WITH EXPECTED CLD COVER AND WINDS...MOS MINS LOOK FINE.
MOS MAXES MAY BE A LTL LOW BASED ON ITS RECENT PERFORMANCE/NORMAL
BIASES COMBINED WITH FACT OF LATER ARRIVING FRONT.

GLD 61/87 33  HLC 65/92 33
CBK 63/88 33  MCK 66/89 32
TRB 60/89 33  5C0 58/86 33

BULLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:05 PM MDTSevere Thunderstorm WarningGLDGreeley65 min
Jun 21, 7:21 PM MDTSevere Thunderstorm WarningGLDWichita64 min
Jun 21, 8:06 PM MDTSevere Thunderstorm WarningGLDGreeley34 min
Jun 21, 8:20 PM MDTSevere Thunderstorm WarningGLDSherman46 min
Jun 22, 5:43 PM MDTSevere Thunderstorm WarningGLDWichita62 min
Jun 21, 6:03 PM MDTSevere Thunderstorm WarningGLDCheyenne37 min
Jun 21, 6:50 PM MDTSevere Thunderstorm WarningGLDYuma35 min
Jun 21, 7:35 PM MDTSevere Thunderstorm WarningGLDYuma65 min
Jun 21, 7:56 PM MDTFlash Flood WarningGLDYuma3 hr
Jun 21, 9:52 PM MDTSevere Thunderstorm WarningGLDYuma22 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1995Every severe thunderstorm warning in 1995

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.