Alert archive / Colorado / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 11, NWS Denver/Boulder, CO

May 18, 1994Logan County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 18, 1994, 5:02 PM MDT for Logan County, Colorado. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
May 18, 1994, 5:02 PM MDT (23:02 UTC)
Expired
May 18, 1994, 5:30 PM MDT
In force
28 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Logan County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 11.0 hours before the alert went out and 96 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 1994-05-18Temperature 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 1994-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3893 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
43 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 18, 4:27 PM MDT, 35 minutes before
COZ048-182300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
427 PM MDT WED MAY 18 1994

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SPECIAL
WEATHER STATEMENT EFFECTIVE FOR PEOPLE IN NORTHERN LOGAN COUNTY
INCLUDING THE FOLLOWING LOCATIONS:

     ILIFF...NORTH STERLING RESERVOIR...PADRONI AND PEETZ

AT 424 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN INTENSIFYING THUNDERSTORM 2 MILES NORTH OF PADRONI ...OR ABOUT 11
MILES NORTH OF STERLING.  THIS STORM IS PRODUCING BRIEFLY HEAVY
RAINS...GUSTY WINDS AND FREQUENT LIGHTNING AS IT MOVES TO THE
NORTH-NORTHEAST AT 30 MPH.

THIS STORM WILL MOVE INTO SOUTHWEST NEBRASKA AROUND 500 PM.

LAT...LON 4069 10302 4069 10331 4096 10333 4099 10294

IMY
Special weather statement, May 18, 4:27 PM MDT, 35 minutes before
COZ048-182300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
427 PM MDT WED MAY 18 1994

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SPECIAL
WEATHER STATEMENT EFFECTIVE FOR PEOPLE IN NORTHERN LOGAN COUNTY
INCLUDING THE FOLLOWING LOCATIONS:

     ILIFF...NORTH STERLING RESERVOIR...PADRONI AND PEETZ

AT 424 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN INTENSIFYING THUNDERSTORM 2 MILES NORTH OF PADRONI ...OR ABOUT 11
MILES NORTH OF STERLING.  THIS STORM IS PRODUCING BRIEFLY HEAVY
RAINS...GUSTY WINDS AND FREQUENT LIGHTNING AS IT MOVES TO THE
NORTH-NORTHEAST AT 30 MPH.

THIS STORM WILL MOVE INTO SOUTHWEST NEBRASKA AROUND 500 PM.

LAT...LON 4069 10302 4069 10331 4096 10333 4099 10294

IMY
Special weather statement, May 18, 4:56 PM MDT, 6 minutes before
COZ048-182330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
456 PM MDT WED MAY 18 1994

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SPECIAL
WEATHER STATEMENT EFFECTIVE FOR PEOPLE IN WESTERN LOGAN COUNTY INCLUDING
THE FOLLOWING LOCATIONS

     ATWOOD...LOGAN CORNERS...NORTH STERLING RESERVOIR...PAWNEE
     PASS...STERLING AND WILLARD

AT 454 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A THUNDERSTORM 2 MILES NORTH OF LOGAN CORNERS ...OR ABOUT 7
MILES WEST OF STERLING. THIS STORM IS LIKELY PRODUCING PEA-TO MARBLE
SIZED HAIL AND GUSTY WINDS AS IT MOVES TO THE NORTH AT 35 MPH.

LAT...LON 4054 10321 4054 10350 4081 10345 4083 10320
Special weather statement, May 18, 4:56 PM MDT, 6 minutes before
COZ048-182330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
456 PM MDT WED MAY 18 1994

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SPECIAL
WEATHER STATEMENT EFFECTIVE FOR PEOPLE IN WESTERN LOGAN COUNTY INCLUDING
THE FOLLOWING LOCATIONS

     ATWOOD...LOGAN CORNERS...NORTH STERLING RESERVOIR...PAWNEE
     PASS...STERLING AND WILLARD

AT 454 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A THUNDERSTORM 2 MILES NORTH OF LOGAN CORNERS ...OR ABOUT 7
MILES WEST OF STERLING. THIS STORM IS LIKELY PRODUCING PEA-TO MARBLE
SIZED HAIL AND GUSTY WINDS AS IT MOVES TO THE NORTH AT 35 MPH.

LAT...LON 4054 10321 4054 10350 4081 10345 4083 10320

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 5:31 PM MDTSevere Thunderstorm WarningBOULogan29 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.