Alert archive / Colorado / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 20, NWS Denver/Boulder, CO

May 28, 1993Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 28, 1993, 5:11 PM MDT for Weld County, Colorado. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
May 28, 1993, 5:11 PM MDT (23:11 UTC)
Expired
May 28, 1993, 5:43 PM MDT
In force
32 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Weld County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 11.2 hours before the alert went out and 125 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 1993-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1993-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1389 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
62 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, May 28, 3:05 PM MDT, 2 hours 6 minutes before
COZ011-282200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
305 PM MDT FRI MAY 28 1993

...THUNDERSTORMS DEVELOPING OVER SOUTH SUBURBS...

AT 305 PM MDT...MODERATE THUNDERSTORMS WERE STRENGTHENING OVER
SOUTHERN JEFFERSON COUNTY...SOUTHWEST ARAPAHOE COUNTY...AND
NORTHERN DOUGLAS COUNTY.  DOPPLER RADAR SHOWED THE STRONGEST STORM
WAS OVER PARKER...COLORADO...IN NORTHERN DOUGLAS COUNTY.  THE
STORM OVER PARKER WAS INTENSIFYING RAPIDLY AND HEAVY RAIN WAS
REPORTED BY THE PUBLIC AT 255 PM...ONE MILE NORTH OF PARKER.

ALL THE THUNDERSTORMS IN THE SOUTHERN SUBURBS WERE MOVING NORTHEAST AT
5 MILES AN HOUR.

THESE STORMS ARE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS TO 40
MILES AN HOUR...AND HEAVY RAIN.  MINOR STREET AND SMALL STREAM FLOODING
IS POSSIBLE.  YOU SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES
AND DRIVERS SHOULD AVOID DRIVING THROUGH FLOODED ROADS.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM TONIGHT FOR
NORTHEASTERN COLORADO...TO THE NORTH AND EAST OF THE DENVER METRO AREA.
STAY TUNED TO WEATHER RADIO FOR ADDITIONAL INFORMATION.

CUOCO
Special weather statement, May 28, 3:09 PM MDT, 2 hours 2 minutes before
COZ011-282200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
305 PM MDT FRI MAY 28 1993

...THUNDERSTORMS DEVELOPING OVER SOUTH SUBURBS...

AT 305 PM MDT...MODERATE THUNDERSTORMS WERE STRENGTHENING OVER
SOUTHERN JEFFERSON COUNTY...SOUTHWEST ARAPAHOE COUNTY...AND
NORTHERN DOUGLAS COUNTY.  DOPPLER RADAR SHOWED THE STRONGEST STORM
WAS OVER PARKER...COLORADO...IN NORTHERN DOUGLAS COUNTY.  THE
STORM OVER PARKER WAS INTENSIFYING RAPIDLY AND HEAVY RAIN WAS
REPORTED BY THE PUBLIC AT 255 PM...ONE MILE NORTH OF PARKER.

ALL THE THUNDERSTORMS IN THE SOUTHERN SUBURBS WERE MOVING NORTHEAST AT
5 MILES AN HOUR.

THESE STORMS ARE CAPABLE OF PRODUCING SMALL HAIL...GUSTY WINDS TO 40
MILES AN HOUR...AND HEAVY RAIN.  MINOR STREET AND SMALL STREAM FLOODING
IS POSSIBLE.  YOU SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES
AND DRIVERS SHOULD AVOID DRIVING THROUGH FLOODED ROADS.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 90L0 PM TONIGHT FOR
NORTHEASTERN COLORADO...TO THE NORTH AND EAST OF THE DENVER METRO AREA.
STAY TUNED TO WEATHER RADIO FOR ADDITIONAL INFORMATION.

CUOCO
Special weather statement, May 28, 3:40 PM MDT, 1 hour 31 minutes before
COZ011-282230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
340 PM MDT FRI MAY 28 1993

...THUNDERSTORMS IN THE FORT COLLINS AREA...

AT 330 PM MDT...THE PUBLIC IN BELLVUE...JUST NORTH OF FORT COLLINS...
REPORTED HEAVY RAIN AND PEA-SIZED HAIL FROM AN AREA OF THUNDERSTORMS
THAT STRETCHED FROM 5 MILES NORTHEAST OF FORT COLLINS TO NEAR ESTES
PARK.  DOPPLER RADAR INDICATED THAT THESE STORMS WERE DRIFTING SLOWLY
EASTWARD.  THESE STORMS WILL CONTINUE TO PRODUCE HEAVY RAIN FROM FORT
COLLINS SOUTHWARD TO MASONVILLE AND DRAKE THROUGH 400 PM.  SMALL HAIL
AND GUSTY WINDS UP TO 40 MPH WILL ALSO OCCUR.

FLOODING OF SMALL STREAMS AND MINOR STREET FLOODING IS POSSIBLE IN
SOUTHEASTERN LARIMER COUNTY THROUGH 430 PM.  MOVE INDOORS WHEN
THUNDERSTORMS APPROACH AS PROTECTION FROM LIGHTNING.  DRIVERS
SHOULD ALSO AVOID DRIVING ON FLOODED ROADWAYS.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM TONIGHT FOR
NORTHEASTERN COLORADO...TO THE NORTH AND EAST OF THE DENVER METRO AREA.
STAY TUNED TO WEATHER RADIO FOR ADDITIONAL INFORMATION.

DANKERS

ADIO OR YOUR FAVORITE NEWS SOURCE FOR
UPDATES ON THIS WEATHER SITUATION.

END/WAGNER
Special weather statement, May 28, 3:42 PM MDT, 1 hour 29 minutes before
COZ011-282230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
340 PM MDT FRI MAY 28 1993

...THUNDERSTORMS IN THE FORT COLLINS AREA...

AT 330 PM MDT...THE PUBLIC IN BELLVUE...JUST NORTH OF FORT COLLINS...
REPORTED HEAVY RAIN AND PEA-SIZED HAIL FROM AN AREA OF THUNDERSTORMS
THAT STRETCHED FROM 5 MILES NORTHEAST OF FORT COLLINS TO NEAR ESTES
PARK.  DOPPLER RADAR INDICATED THAT THESE STORMS WERE DRIFTING SLOWLY
EASTWARD.  THESE STORMS WILL CONTINUE TO PRODUCE HEAVY RAIN FROM FORT
COLLINS SOUTHWARD TO MASONVILLE AND DRAKE THROUGH 400 PM.  SMALL HAIL
AND GUSTY WINDS UP TO 40 MPH WILL ALSO OCCUR.

FLOODING OF SMALL STREAMS AND MINOR STREET FLOODING IS POSSIBLE IN
SOUTHEASTERN LARIMER COUNTY THROUGH 430 PM.  MOVE INDOORS WHEN
THUNDERSTORMS APPROACH AS PROTECTION FROM LIGHTNING.  DRIVERS
SHOULD ALSO AVOID DRIVING ON FLOODED ROADWAYS.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM TONIGHT FOR
NORTHEASTERN COLORADO...TO THE NORTH AND EAST OF THE DENVER METRO AREA.
STAY TUNED TO WEATHER RADIO FOR ADDITIONAL INFORMATION.

DANKERS
Special weather statement, May 28, 4:40 PM MDT, 31 minutes before
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Special weather statement, May 28, 4:41 PM MDT, 30 minutes before
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</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 9:28 PM MDTSevere Thunderstorm WarningBOUYuma47 min
May 27, 10:11 PM MDTSevere Thunderstorm WarningBOUYuma29 min
May 28, 4:13 PM MDTTornado WarningBOULarimer, Weld12 min
May 28, 4:47 PM MDTSevere Thunderstorm WarningBOULarimer, Weld28 min
May 28, 5:22 PM MDTTornado WarningBOUWeld23 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1993Every severe thunderstorm warning in 1993

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.