Alert archive / Colorado / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 37, NWS Denver/Boulder, CO

June 3, 1994Douglas County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 3, 1994, 3:20 PM MDT for Douglas County, Colorado. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jun 3, 1994, 3:20 PM MDT (21:20 UTC)
Expired
Jun 3, 1994, 3:45 PM MDT
In force
25 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Douglas County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.3 hours before the alert went out and 158 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 12:00Z on 1994-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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 12:00Z on 1994-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.193958Sfc1 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
81 J/kg
Mixed-layer CIN
-175 J/kg
Mixed-layer LCL
1166 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
92 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.

In the hours before

Special weather statement, Jun 3, 11:06 AM MDT, 4 hours 14 minutes before
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Special weather statement, Jun 3, 11:10 AM MDT, 4 hours 10 minutes before
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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Jun 3, 2:24 PM MDT, 56 minutes before
COZ040-043-032100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
225 PM MDT FRI JUN 03 1994

AT 220 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A DEVELOPING THUNDERSTORM NEAR THE TOWN OF FRANKTOWN...OR 8 MILES
EAST OF CASTLE ROCK IN EASTERN DOUGLAS COUNTY.  THIS STORM WAS MOVING
SLOWLY TO THE EAST.  THIS STORM WILL CONTAIN FREQUENT LIGHTNING...
POSSIBLE HEAVY RAIN AND LARGE HAIL.  IF YOU ARE IN THE PATH OF THIS
STORM TAKE COVER AND REPORT ANY SEVERE WEATHER TO THE DOUGLAS COUNTY
SHERRIFF.

RTG
Special weather statement, Jun 3, 2:25 PM MDT, 55 minutes before
COZ040-043-032100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
225 PM MDT FRI JUN 03 1994

AT 220 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A DEVELOPING THUNDERSTORM NEAR THE TOWN OF FRANKTOWN...OR 8 MILES
EAST OF CASTLE ROCK IN EASTERN DOUGLAS COUNTY.  THIS STORM WAS MOVING
SLOWLY TO THE EAST.  THIS STORM WILL CONTAIN FREQUENT LIGHTNING...
POSSIBLE HEAVY RAIN AND LARGE HAIL.  IF YOU ARE IN THE PATH OF THIS
STORM TAKE COVER AND REPORT ANY SEVERE WEATHER TO THE DOUGLAS COUNTY
SHERRIFF.

RTG
Special weather statement, Jun 3, 3:07 PM MDT, 13 minutes before
COZ036-040>041-032130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
307 PM MDT FRI JUN 03 1994

AT 305 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED THUNDERSTORM ACROSS MOST OF DOUGLAS COUNTY.  THESE STORMS ARE
NOT THAT STRONG...BUT ARE PRODUCING LOWERINGS WHICH REPRESENT  WARM
MOIST AIR THAT IS FEEDING THE STORMS. ALTHOUGH THEY HAVE THE APPEARANCE
OF FUNNEL CLOUDS...THEY ARE NOT.  THE WIND PROFILE IS NOT VERY CONDUCIVE
FOR THE FORMATION OF STRONG TORNADOES TODAY.

HOWEVER...A VERY WEAK TORNADO CAN QUICKLY SPIN UP ALONG THE STORMS
IN DOUGLAS COUNTY.  IF THEY DO DEVELOP, THE WINDS LIKELY WILL BE LESS
THAN 70 MPH AND LAST A MINUTE OR LESS.

THE STORM ARES MOVING EAST AT 10 MPH.

LAT...LON 3931 10468 3913 10519 3948 10507 3952 10469
Special weather statement, Jun 3, 3:08 PM MDT, 12 minutes before
COZ036-040>041-032130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
307 PM MDT FRI JUN 03 1994

AT 305 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED THUNDERSTORM ACROSS MOST OF DOUGLAS COUNTY.  THESE STORMS ARE
NOT THAT STRONG...BUT ARE PRODUCING LOWERINGS WHICH REPRESENT  WARM
MOIST AIR THAT IS FEEDING THE STORMS. ALTHOUGH THEY HAVE THE APPEARANCE
OF FUNNEL CLOUDS...THEY ARE NOT.  THE WIND PROFILE IS NOT VERY CONDUCIVE
FOR THE FORMATION OF STRONG TORNADOES TODAY.

HOWEVER...A VERY WEAK TORNADO CAN QUICKLY SPIN UP ALONG THE STORMS
IN DOUGLAS COUNTY.  IF THEY DO DEVELOP, THE WINDS LIKELY WILL BE LESS
THAN 70 MPH AND LAST A MINUTE OR LESS.

THE STORM ARES MOVING EAST AT 10 MPH.

LAT...LON 3931 10468 3913 10519 3948 10507 3952 10469

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 6:28 PM MDTSevere Thunderstorm WarningBOUMorgan32 min
Jun 2, 6:35 PM MDTSevere Thunderstorm WarningBOULarimer, Weld40 min
Jun 2, 7:15 PM MDTSevere Thunderstorm WarningBOULarimer, Weld25 min
Jun 3, 5:13 PM MDTSevere Thunderstorm WarningBOUWeld22 min
Jun 3, 5:23 PM MDTSevere Thunderstorm WarningBOUAdams, Denver22 min
Jun 3, 5:35 PM MDTSevere Thunderstorm WarningBOUJefferson35 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1994Every severe thunderstorm warning in 1994

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.