Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 91, NWS Denver/Boulder, CO

June 24, 1996Washington County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 24, 1996, 4:58 AM MDT for Washington County, Colorado. It was in force for 32 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 24, 1996, 4:58 AM MDT (10:58 UTC)
Expired: Jun 24, 1996, 5:30 AM MDT
In force: 32 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

County Washington County, CO

The radar

The Denver radar (KFTG), 117 km from the middle of the area, began a volume at 11:01 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.

What was reported inside it

Time	Report	Where	Remark
Jun 24, 5:05 AM MDT	Hail 1	Akron, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 11.0 hours before the alert went out and 11 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: 388 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 2785 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KDEN 241101
SVRDEN
COC121-241130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
458 AM MDT MON JUN 24 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 530 AM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN NORTHEASTERN COLORADO
     NORTH CENTRAL WASHINGTON

INCLUDING THE FOLLOWING LOCATIONS
     AKRON...OTIS AND PLATNER

AT 458 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF AKRON ...OR ABOUT
43 MILES SOUTH OF STERLING.

THE STORM WAS MOVING NORTH NORTHEAST AT 15 TO 20 MPH.

LARGE HAIL TO AN INCH IN DIAMETER AND GUSTY WINDS IN EXCESS OF 60 MPH
ARE POSSIBLE WITH THIS STORM.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY
SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING
HAIL...DAMAGING WINDS OVER 60 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.


LAT...LON 4004 10292 3996 10319 3991 10334 4001 10341
          4025 10337 4036 10297

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 24, 2:43 AM MDT, 2 hours 15 minutes before

COZ040-044-045-048-049-240945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
240 AM MDT MON JUN 24 1996

AT 235 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED WIDELY
SCATTERED THUNDERSTORM REDEVELOPING OVER EASTERN ADAMS...SOUTHERN MORGAN
AND WASHINGTON COUNTIES.

THE STRONGEST STORMS WERE LOCATED JUST EAST OF HOYT TO SOUTH OF
BRUSH IN MORGAN COUNTY...AND FROM 45 MILES SOUTHWEST OF ELBA TO
63 MILES SOUTH OF OTIS IN WASHINGTON COUNTY.

THE STORMS WERE MOVING NORTHEAST AT 20 TO 25 MPH.

BRIEF HEAVY RAIN...SMALL HAIL AND  GUSTY WINDS TO 40 MPH ARE POSSIBLE
WITH THESE STORMS ALONG WITH DANGEROUS LIGHTNING.  SEEK SHELTER IF A
STORM APPROACHES YOUR AREA.

FMC

Special weather statement, Jun 24, 3:15 AM MDT, 1 hour 43 minutes before

COZ044-048-049-241000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
315 AM MDT MON JUN 24 1996

AT 309 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED WIDELY
SCATTERED THUNDERSTORMS CONTINUING OVER EASTERN MORGAN AND NORTHERN
WASHINGTON COUNTIES.  THE STRONGEST STORM WAS LOCATED 9 MILES WEST OF
ELBA ...OR ABOUT 46 MILES NORTHEAST OF LIMON.

THE STORMS WERE MOVING NORTHEAST AT 25 TO 30 MPH

TOWNS IN THE PATH OF THESE STORMS INCLUDE:
     AKRON...BRUSH...BURDETT...ELBA...FORT MORGAN...GARY...
     HILLROSE...JACKSON RESERVOIR...LOG LANE VILLAGE...LONE STAR
     ...MIDWAY...OTIS...PLATNER...SNYDER AND WELDONA

BRIEF HEAVY RAIN...SMALL HAIL AND  GUSTY WINDS TO 40 MPH ARE POSSIBLE
WITH THESE STORMS ALONG WITH DANGEROUS LIGHTNING.  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.

LAT..:.LON 3977 10281 3980 10305 3982 10334 4040 10407
          4039 10349 4042 10278

Special weather statement, Jun 24, 3:52 AM MDT, 1 hour 6 minutes before

COZ044-048>049-241015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
350 AM MDT MON JUN 24 1996

AT 345 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
WIDELY SCATTERED THUNDERSTORMS...SOME STRONG...OVER EASTERN MORGAN AND
NORTHERN WASHINGTON COUNTIES.

THE STRONGEST STORMS WERE LOCATED 48 MILES SOUTHEAST AND 30 MILES NORTH
OF FORT MORGAN IN MORGAN COUNTY...AND IN WASHINGTON COUNTY 9 MILES
SOUTH OF PLATNER ...OR ABOUT 47 MILES SOUTH OF STERLING.

THE STORMS WERE MOVING NORTHEAST AT 20 TO 25 MPH.

AREAS IN THE PATH OF THESE STORMS INCLUDE THE FOLLOWING LOCATIONS:
     AKRON...ANTELOPE SPRINGS...ATWOOD...BRUSH...BURDETT...ELBA
     ...FORT MORGAN...GARY...HILLROSE...JACKSON RESERVOIR...LOG
     LANE VILLAGE...LONE STAR...MERINO...MIDWAY...OTIS...PLATNER
     ...PREWITT RESERVOIR...SNYDER...ST PETERS AND WELDONA

BRIEF HEAVY RAIN...SMALL HAIL AND  GUSTY WINDS TO 40 MPH ARE POSSIBLE
WITH THESE STORMS ALONG WITH DANGEROUS LIGHTNING.  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.

LAT...LON 3993 10279 3989 10310 4004 10364 4039 10408
          4050 10355 4067 10281

Special weather statement, Jun 24, 4:30 AM MDT, 28 minutes before

COZ044-048>049-241115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
430 AM MDT MON JUN 24 1996

AT 425 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF THUNDERSTORMS...A FEW STRONG... OVER NORTHEAST MORGAN...
SOUTHERN LOGAN AND NORTHERN WASHINGTON COUNTIES.

THE STRONGEST STORMS WERE LOCATED 12 MILES SOUTH OF MIDWAY ...OR ABOUT
41 MILES SOUTH OF STERLING IN WASHINGTON COUNTY AND 20 MILES EAST OF NEW
RAYMER...OR ABOUT 75 MILES SOUTHWEST OF STERLING IN NORTHEAST MORGAN
COUNTY.

MOVEMENT OF THE STORMS WAS TO THE NORTHEAST AT 20 TO 25 MPH.

AREAS IN THE PATH OF THESE STORMS INCLUDE THE FOLLOWING LOCATIONS:
     AKRON...ATWOOD...BURDETT...FLEMING...HILLROSE...LOGAN
     CORNERS...LONE STAR...MERINO...MIDWAY...OTIS...PAWNEE PASS
     ...PLATNER...PREWITT RESERVOIR...SNYDER...ST PETERS...
     STERLING AND WILLARD

BRIEF HEAVY RAIN...SMALL HAIL AND  GUSTY WINDS TO 40 MPH ARE POSSIBLE
WITH THESE STORMS ALONG WITH DANGEROUS LIGHTNING.  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.

LAT...LON 4021 10287 3979 10281 4003 10334F 4051 10377
          4068 10333 4068 10269

Special weather statement, Jun 24, 4:37 AM MDT, 21 minutes before

COZ044-048>049-241115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO..CORRECTED
435 AM MDT MON JUN 24 1996

...CORRECTED LOCATION OF STORMS IN SECOND SECTION OF TEXT...

AT 425 AM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF THUNDERSTORMS...A FEW STRONG... OVER NORTHEAST MORGAN...
SOUTHERN LOGAN AND NORTHERN WASHINGTON COUNTIES.

THE STRONGEST STORMS WERE LOCATED 12 MILES SOUTH OF MIDWAY ...OR ABOUT
41 MILES SOUTH OF STERLING IN WASHINGTON COUNTY AND IN NORTHEASTERN
MORGAN COUNTY...ABOUT 30 MILES SOUTHWEST OF STERLING

MOVEMENT OF THE STORMS WAS TO THE NORTHEAST AT 20 TO 25 MPH.

AREAS IN THE PATH OF THESE STORMS INCLUDE THE FOLLOWING LOCATIONS:
     AKRON...ATWOOD...BURDETT...FLEMING...HILLROSE...LOGAN
     CORNERS...LONE STAR...MERINO...MIDWAY...OTIS...PAWNEE PASS
     ...PLATNER...PREWITT RESERVOIR...SNYDER...ST PETERS...
     STERLING AND WILLARD

BRIEF HEAVY RAIN...SMALL HAIL AND  GUSTY WINDS TO 40 MPH ARE POSSIBLE
WITH THESE STORMS ALONG WITH DANGEROUS LIGHTNING.  STAY AWAY FROM
WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM
APPROACVHES.

LAT...LON 4021 10287 3979 10281 4003 10334 4051 10377
          4068 10333 4068 10269

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 5:31 AM MDT	Severe Thunderstorm Warning	BOU	Washington	29 min
Jun 24, 6:01 AM MDT	Severe Thunderstorm Warning	BOU	Washington	29 min
Jun 24, 6:35 AM MDT	Severe Thunderstorm Warning	BOU	Washington	40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.