Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 65, NWS Denver/Boulder, CO

June 11, 19964 counties in Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 11, 1996, 5:30 PM MDT for 4 counties in Colorado. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 11, 1996, 5:30 PM MDT (23:30 UTC)
Expired: Jun 11, 1996, 6:00 PM MDT
In force: 30 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Arapahoe County, CO, Elbert County, CO, Lincoln County, CO, Washington County, CO

The radar

The Denver radar (KFTG), 73 km from the middle of the area, began a volume at 23:29 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 12:00Z, 11.5 hours before the alert went out and 66 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 17 J/kg
Mixed-layer CIN: -338 J/kg
Mixed-layer LCL: 2298 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 30 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 11, 3:18 PM MDT, 2 hours 12 minutes before

COZ042-112215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
318 PM MDT TUE JUN 11 1996

...STRONG THUNDERSTORM OVER NORTHEASTERN WELD COUNTY COLORADO...

AT 314 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 47 MILES NORTHEAST OF GREELEY OR JUST EAST OF
GROVER IN NORTHEASTERN WELD COUNTY COLORADO.  THE STORM WAS MOVING
TO THE EAST AT 10 TO 15 MPH.

ALL PEOPLE IN NORTHEASTERN WELD COUNTY SHOULD BE ALERT FOR STRONG
GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING...SMALL HAIL AND BRIEF
HEAVY RAIN FROM THIS STORM UNTIL 415 PM MDT THIS AFTERNOON.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES.  MOVE
INDOORS IF POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.

GARD...WSFO DENVERn

LAT...LON 4057 10368 4077 10420 4100 10406 4097 10358

Special weather statement, Jun 11, 3:36 PM MDT, 1 hour 54 minutes before

COZ045-112230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
335 PM MDT TUE JUN 11 1996

...STRONG THUNDERSTORM EAST OF DENVER...

AT 332 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 2 MILES EAST OF MANILA VILLAGE ...OR ABOUT 23
MILES EAST OF DENVER.  THE STORM WAS DEVELOPING RAPIDLY LAND MOVING TO
THE EAST AT 10 TO 15 MPH.

ALL PEOPLE IN CENTRAL ADAMS AND ARAPAHOE COUNTIES OF COLORADO
INCLUDING THE FOLLOWING LOCATIONS
     BENNETT...BYERS...COUNTRY GARDENS...MANILA VILLAGE AND
     STRASBURG
SHOULD BE ALERT FOR STRONG GUSTY WINDS...SMALL HAIL...BRIEF HEAVY
RAIN AND FREQUENT DANGEROUS LIGHTNING FROM THIS STORM UNTIL 430 PM MDT
THIS AFTERNOON.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES.  MOVE
INDOORS IF POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.

GARD...WSFO DENVER
LAT...LON 3959 10410 3967 10458 3985 10450 3982 10400

Special weather statement, Jun 11, 3:47 PM MDT, 1 hour 43 minutes before

COZ033-035-038-112245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
345 PM MDT TUE JUN 11 1996

...STRONG THUNDERSTORM WEST OF FORT COLLINS...

AT 343 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 6 MILES SOUTH OF RUSTIC...OR ABOUT 24 MILES
WEST OF FORT COLLINS.  THE STORM WAS MOVING TO THE EAST
SOUTHEAST AT 10 TO 15 MPH.

ALL PEOPLE IN CENTRAL AND SOUTHEAST LARIMER COUNTY COLORADO...
INCLUDING THE FOLLOWING LOCATIONS
     BELLVUE...BUCKHORN MOUNTAIN...DRAKE...FORT COLLINS...GLEN
     HAVEN...MASONVILLE...MISHOWAKA...POUDRE PARK...RUSTIC AND
     TEDS PLACE
SHOULD BE ALERT FOR STRONG GUSTY WINDS...BRIEF HEAVY RAIN...
FREQUENT DANGEROUS LIGHTNING AND SMALL HAIL FROM THIS STORM UNTIL
445 PM MDT THIS AFTERNOON.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES.  MOVE
INDOORS IF POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.

GARD...WSFO DENVER
LAT...LON 4030 10526 4055 10567 4076 10554 4068 10499

Special weather statement, Jun 11, 3:58 PM MDT, 1 hour 32 minutes before

COZ041-044>045-112245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
355 PM MDT TUE JUN 11 1996

...LINE OF STRONG THUNDERSTORMS DEVELOPING EAST OF DENVER...

AT 350 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
OF STRONG THUNDERSTORMS DEVELOPING EAST OF DENVER FROM NEAR HOYT IN
SOUTHWESTERN MORGAN COUNTY TO WEST OF AGATE IN NORTHERN ELBERT
COUNTY.  THE STRONGEST STORM WAS LOCATED 4 MILES SOUTHWEST OF HOYT ...OR
ABOUT 54 MILES NORTHWEST OF LIMON.  THESE STORMS WERE MOVING TO THE EAST
SOUTHEAST AT 10 TO 15 MPH.

ALL PEOPLE IN SOUTHWESTERN MORGAN...EASTERN ADAMS...CENTRAL
ARAPAHOE...AND NORTH CENTRAL ELBERT COUNTIES OF COLORADO...
INCLUDING THE FOLLOWING LOCATIONS
     ADENA...ADENA SCHOOL...BYERS...COUNTRY GARDENS...DEER TRAIL
     ...HOYT...LEADER...STRASBURG AND TWELVE-MILE CORNER
SHOULD BE ALERT FOR STRONG GUSTY WINDS...BRIEF HEAVY RAIN...
FREQUENT DANGEROUS LIGHTNING...AND SMALL HAIL UNTIL 445 PM MDT
THIS AFTERNOON.

AT 340 PM MDT A WEATHER SPOTTER REPORTED PEA TO 1/2 INCH DIAMETER HAIL
AT BENNETT FROM THESE STORMS.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES.  MOVE
INDOORS IF POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.

GARD...WSFO DENVER
LAT...LON 394<6 10419 3963 10452 4022 10400 4007 10367

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:16 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Weld	29 min
Jun 11, 4:06 PM MDT	Severe Thunderstorm Warning	BOU	Adams	24 min
Jun 11, 4:28 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Washington	47 min
Jun 11, 4:35 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	40 min
Jun 11, 4:44 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	46 min
Jun 11, 4:59 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	46 min
Jun 11, 5:16 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert, Lincoln	44 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996 Every severe thunderstorm warning in 1996

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.