Alert archive / Colorado / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 24, NWS Denver/Boulder, CO

May 26, 1995Arapahoe County, Elbert County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 26, 1995, 3:15 PM MDT for Arapahoe County, Elbert County, Colorado. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
May 26, 1995, 3:15 PM MDT (21:15 UTC)
Expired
May 26, 1995, 3:40 PM MDT
In force
25 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Arapahoe County, CO, Elbert County, CO

The radar

The Denver radar (KFTG), 44 km from the middle of the area, began a volume at 21:17 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

Fort Carson/Butt, CO (KFCS), launched 12:00Z, 9.3 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, Fort Carson/Butt, CO at 12:00Z on 1995-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Carson/Butt, CO at 12:00Z on 1995-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.193958Sfc1 km3 km6 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
1403 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
159 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 26, 11:03 AM MDT, 4 hours 12 minutes before
COZ015-030>050-067-071-072-270600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1100 AM MDT FRI MAY 26 1995

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS      ARAPAHOE     BOULDER    CLEAR CREEK    DENVER       DOUGLAS
ELBERT     EL PASO      GILPIN     GRAND          JACKSON      JEFFERSON
LAKE       LARIMER      LINCOLN    LOGAN          MORGAN       PARK
PHILLIPS   SEDGWICK     SUMMIT     TELLER         WASHINGTON   WELD

SYNOPSIS: LARGE AREA OF LOW PRESSURE OVER THE WESTERN UNITED STATES
WILL CONTINUE TO MOVE SLOWLY EASTWARD.

THE ATMOSPHERE OVER THE MOUNTAINS AND FOOTHILLS IS VERY UNSTABLE AND
NUMEROUS SHOWERS AND THUNDERSTORMS WILL ACROSS THIS AREA INTO THE
EVENING HOURS. THE ATMOSPHERE OVER NORTHEAST COLORADO IS ALSO QUITE
UNSTABLE...BUT A MORE STABLE LAYER ABOUT 10 THOUSAND FEET ABOVE THE
SURFACE WILL SLOW THUNDERSTORM DEVELOPMENT EAST OF THE FOOTHILLS.  IN
FACT...THUNDERSTORMS ARE NOT EXPECTED TO OCCUR UNTIL AFTER 600 PM EAST
OF A STERLING-AKRON LINE.

THUNDERSTORMS WILL MOVE OFF THE FOOTHILLS DURING THE EARLY AFTERNOON
HOURS AND THEN LIKELY WEAKEN AS THEY ENCOUNTER THE MORE STABLE MID-LEVEL
LAYER. EVENTUALLY THE STORMS WILL PRODUCE A STRONG ENOUGH BOUNDARY FOR
THUNDERSTORMS TO DEVELOP FROM NEAR FT COLLINS TO DENVER BY MID AFTERNOON
AND THEN MOVE SLOWLY EASTWARD. THESE THUNDERSTORMS WILL LIKELY PRODUCE
SOME HAIL...POSSIBLY LARGE ENOUGH FOR A FEW SEVERE THUNDERSTORM WARNINGS
TO BE ISSUED.

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON...MAINLY WEST OF A RAYMER-
FT MORGAN-BYERS-ELBERT LINE.  THE MAIN THREAT OF SEVERE WEATHER WOULD BE
HAIL WITH SOME OF THE LARGER HAILSTONES POSSIBLY OVER 1 INCH IN
DIAMETER.

THE SHOWERS AND THUNDERSTORMS WILL MOVE EASTWARD THROUGH THE EVENING
WITH ISOLATED THUNDERSTORMS POSSIBLE ACROSS ALL OF THE FLATLANDS OF
NORTHEAST COLORADO UNTIL 10 PM.

SPOTTER ACTIVIATION IS POSSIBLE THIS AFTERNOON...ESPECIALLY BETWEEN
200 PM AND 800 PM.

IMY
Special weather statement, May 26, 2:15 PM MDT, 1 hour before
COZ041-045>046-262045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
215 PM MDT FRI MAY 26 1995

AT 213 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A RAPIDLY INTENSIFYING THUNDERSTORM 12 MILES SOUTHWEST OF DEER TRAIL
...OR ABOUT 30 MILES NORTHWEST OF LIMON IN NORTH CENTRAL ELBERT COUNTY.
 THE ATMOSPHERE IS QUITE UNSTABLE AND THIS STORM MAY BECOME SEVERE IN
THE NEXT 30 MINUTES AS IT MOVES NORTHEAST AT 30 MPH INTO EASTERN AFDAMS
COUNTY. THE TOWNS OF AGATE AND DEER TRAIL ARE LOCATED CLOSE TO THIS
STORM.

LAT...LON 3944 10397 3940 10436 3960 10430 3967 10400

IMY
Special weather statement, May 26, 2:58 PM MDT, 17 minutes before
COZ004-005-009-010-033-034-280000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
255 PM MDT FRI MAY 26 1995

...MORE SNOW FOR THE NORTHERN AND CENTRAL MOUNTAINS TONIGHT AND
SATURDAY...

A STORM SYSTEM OVER NORTHERN UTAH WILL FINALLY MOVE EASTWARD OVER
COLORADO ON SATURDAY...PRODUCING MORE SNOW AND WINDY CONDIIONS OVER MUCH
OF THE NORTHERN AND CENTRAL MOUNTAINS. SNOW ACCUMULATIONS OF 3 TO 6
INCHES ARE LIKELY BY LATE SATURDAY WITH LOCAL HIGHER AMOUNTS POSSIBLE.
THE SNOW LEVEL WILL RANGE BETWEEN 8000 AND 9000 FEET.

SHOWERS AND THUNDERSTORMS HAVE DEVELOPED OVER MUCH OF THE MOUNTAINS THIS
AFTERNOON...AND WILL CONTINUE THROUGH THE DAY ON SATURDAY. IN
ADDITION...STRONG NORTHWEST WINDS WILL DEVELOP LATE TONIGHT...WHERE
WINDS WILL BLOW AT 20 TO 40 MPH ESPECIALLY OVER THE PASSES.

HOLIDAY TRAVELERS VENTURING INTO THE MOUNTAINS LATE TONIGHT AND SATURDAY
SHOULD BE PREPARED FOR WINTER-LIKE DRIVING CONDITIONS. THE HIGHER PASSES
MAY BECOME ICY AND SNOWPACKED. HARDY CAMPERS SHOULD TAKE PLENTY OF
BLANKETS AND WARM CLOTHING...AS OVERNITE LOWS WILL DROP INTO THE 20S AND
LOWER 30S TONIGHT AND SATURDAY NIGHT. HIGH TEMPERATURES WILL ONLY BE IN
THE 40S ON SATURDAY.

ENTREKIN

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 4:52 PM MDTSevere Thunderstorm WarningBOULincoln, Washington41 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.