Alert archive / Colorado / Flash Flood Warnings in 1995

Flash Flood Warning 1, NWS Denver/Boulder, CO

June 4, 1995Washington County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jun 4, 1995, 1:05 AM MDT for Washington County, Colorado. It was in force for 115 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1995, 1:05 AM MDT (07:05 UTC)
Expired
Jun 4, 1995, 3:00 AM MDT
In force
115 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 07:05 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 00:00Z, 7.1 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 1995-06-04Temperature 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 00:00Z on 1995-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.193958Sfc1 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
1788 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 flash flood 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 3, 8:04 PM MDT, 5 hours 1 minute before
COZ041-071>075-040300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
800 PM MDT SAT JUN 03 1995

...TORNADO WATCH CANCELLED FOR PORTIONS OF EASTERN COLORADO...

THE TORNADO WATCH HAS BEEN CANCELLED FOR DOUGLAS...EL PASO...WESTERN
ELBERT...WESTERN ADAMS...WESTERN ARAPAHOE...PUEBLO AND WESTERN
LAS ANIMAS COUNTIES.

THE WATCH REMAINS IN EFFECT UNTIL 9PM FOR PORTIONS OF EASTERN COLORADO
EAST OF A LINE FROM FORT MORGAN TO LIMON TO LA JUNTA.

LESZCYNSKI
Special weather statement, Jun 3, 9:10 PM MDT, 3 hours 55 minutes before
COZ044>050-076>081-090>092-040400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
910 PM MDT SAT JUN 03 1995

...TORNADO WATCH CANCELLED FOR REMAINDER OF EASTERN COLORADO...

THE TORNADO WATCH HAS BEEN CANCELLED THE REMAINDER OF EASTERN COLORADO.
SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING OVER EASTERN
COLORADO...WITH MOST OF THE ACTIVITY NEAR THE KANSAS BORDER.  HOWEVER...
THE STORMS ARE NOT EXPECTED TO REACH SEVERE LIMITS.

LESZCYNSKI
Special weather statement, Jun 3, 9:12 PM MDT, 3 hours 53 minutes before
COZ044>050-076>081-090>092-040400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
910 PM MDT SAT JUN 03 1995

...TORNADO WATCH CANCELLED FOR REMAINDER OF EASTERN COLORADO...

THE TORNADO WATCH HAS BEEN CANCELLED THE REMAINDER OF EASTERN COLORADO.
SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING OVER EASTERN
COLORADO...WITH MOST OF THE ACTIVITY NEAR THE KANSAS BORDER.  HOWEVER...
THE STORMS ARE NOT EXPECTED TO REACH SEVERE LIMITS.

LESZCYNSKI
Local storm report, Jun 3, 11:12 PM MDT, 1 hour 53 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
1115 PM MDT FRI MAY 26 1995

...SEVERE WEATHER REPORTS...NORTHEAST COLORADO JUNE 3 1995...

TIME(MDT)  .....CITY LOCATION.....STATE       ...EVENT/REMARKS...
           ....COUNTY LOCATION....

235 PM     5-6 E OF LOCHBUIE      CO          TORNADO/SHORT LIVED
           WELD COUNTY

310 PM     W OF CASTLE ROCK       CO          3/4 INCH HAIL
           DOUGLAS COUNTY

311 PM     11 E DENVER            CO          3/4 INCH HAIL AND
           ARAPAHOE COUNTY                    FUNNEL CLOUD

314 PM     NEAR AURORA            CO          3/4 INCH HAIL
           ARAPAHOE COUNTY                    NEAR BUCKLEY AFB

315 PM     5 W AURORA             CO          TORNADO/SHORT LIVED
           ARAPAHOE COUNTY                    W OF BUCKLEY AFB

323 PM     1 N CASTLE ROCK        CO          3/4 INCH HAIL
           DOUGLAS COUNTY

331 PM     CASTLE ROCK            CO          3/4 TO 11/2 INCH HAIL
           DOUGLAS COUNTY

337 PM     1 E CASTLE ROCK        CO          FUNNEL CLOUD
           DOUGLAS COUNTY

501 PM     6 S BENNETT            CO          FUNNEL CLOUD
           ARAPAHOE COUNTY

503 PM     4-5 S BENNETT          CO          FUNNEL CLOUD
           ARAPAHOE COUNTY

506 PM     1 N BENNETT            CO          FUNNEL CLOUD
           ADAMS COUNTY

509 PM     5-6 NE STRASBURG       CO          2 TORNADOES
           ADAMS COUNTY

610 PM     9 SW STRASBURG         CO          WATER 6 INCHES DEEP
           ADAMS COUNTY                       OVER ROAD

930 PM     NEAR NEW RAYMER        CO          6 TO 7 FARMS FLOODED
           WELD COUNTY                        5 FEETT OF WATER IN
                                              BASEMENTS/LATE REPORT

LESZCYNSKI
Special weather statement, Jun 4, 12:08 AM MDT, 57 minutes before
COZ048>049-040808-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1208 AM MDT SUN JUN 04 1995

...LOCALLY HEAVY RAIN CONTINUES TO SOAK ALREADY SATURATED FIELDS IN
NORTHEAST COLORADO...

NATIONAL WEATHER SERVICE DOPPLER RADAR HAS DETECTED MODERATE TO HEAVY
RAINFALL DURING THE PAST HOUR FROM THUNDERSTORMS MOVING NORTHWARD ACROSS
PORTIONS OF WASHINGTON AND LOGAN COUNTIES IN NORTHEAST COLORADO.  RADAR
ESTIMATES OF 1 TO 1 1/2 INCHES OF RAIN HAS FALLEN DURING THE PAST HOUR
IN NORTHERN AND EASTERN WASHINGTON COUNTY AND IN SOUTHERN LOGAN COUNTY.

RAINFALL THIS EVENING HAS LIKELY ADDED TO ALREADY SWOLLEN STREAMS...
CREEKS AND DRAIN DITCHES IN THE AREA.   LOW LYING FIELDS MAY HAVE ALSO
BECOME WATER COVERED TOGETHER WITH PONDING OF WATER ON ROADS.  THE
RAINFALL MAY CAUSE A MINOR RISE ON THE SOUTH PLATTE RIVER DOWNSTREAM IN
EASTERN LOGAN AND SEDGWICK COUNTIES TOWARDS MORNING.

RAINFALL IS EXPECTED TO LAST ANOTHER ONE TO TWO HOURS ACROSS THE
NORTHEAST CORNER OF COLORADO.  ADDITIONAL RAINFALL AMOUNTS OF 1/2 TO 1
INCH MAY FALL IN PORTIONS OF LOGAN...NORTHERN WASHINGTON...PHILLIPS AND
SEDFGWICK COUNTIES BY 2 AM.

PERSONS IN LOW LYING AREAS AND ALONG THE BANKS OF THE SOUTH PLATTE
RIVER AND CREEKS IN WASHINGTON...LOGAN...AND SEDGWICK COUNTIES SHOULD
REMAIN ALERT FOR THE POSSIBILITY OF SUDDENLY RISING WATERS.  AVOID
DRIVING OVER WATER COVERED ROADS AS THEY MAY BE WASHED OFF.

BAKER
LAT...LON 4047 10281 3994 10281 4023 10311 4077 10336
          4099 10266
Special weather statement, Jun 4, 12:10 AM MDT, 55 minutes before
COZ048>049-040808-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1208 AM MDT SUN JUN 04 1995

...LOCALLY HEAVY RAIN CONTINUES TO SOAK ALREADY SATURATED FIELDS IN
NORTHEAST COLORADO...

NATIONAL WEATHER SERVICE DOPPLER RADAR HAS DETECTED MODERATE TO HEAVY
RAINFALL DURING THE PAST HOUR FROM THUNDERSTORMS MOVING NORTHWARD ACROSS
PORTIONS OF WASHINGTON AND LOGAN COUNTIES IN NORTHEAST COLORADO.  RADAR
ESTIMATES OF 1 TO 1 1/2 INCHES OF RAIN HAS FALLEN DURING THE PAST HOUR
IN NORTHERN AND EASTERN WASHINGTON COUNTY AND IN SOUTHERN LOGAN COUNTY.

RAINFALL THIS EVENING HAS LIKELY ADDED TO ALREADY SWOLLEN STREAMS...
CREEKS AND DRAIN DITCHES IN THE AREA.   LOW LYING FIELDS MAY HAVE ALSO
BECOME WATER COVERED TOGETHER WITH PONDING OF WATER ON ROADS.  THE
RAINFALL MAY CAUSE A MINOR RISE ON THE SOUTH PLATTE RIVER DOWNSTREAM IN
EASTERN LOGAN AND SEDGWICK COUNTIES TOWARDS MORNING.

RAINFALL IS EXPECTED TO LAST ANOTHER ONE TO TWO HOURS ACROSS THE
NORTHEAST CORNER OF COLORADO.  ADDITIONAL RAINFALL AMOUNTS OF 1/2 TO 1
INCH MAY FALL IN PORTIONS OF LOGAN...NORTHERN WASHINGTON...PHILLIPS AND
SEDFGWICK COUNTIES BY 2 AM.

PERSONS IN LOW LYING AREAS AND ALONG THE BANKS OF THE SOUTH PLATTE
RIVER AND CREEKS IN WASHINGTON...LOGAN...AND SEDGWICK COUNTIES SHOULD
REMAIN ALERT FOR THE POSSIBILITY OF SUDDENLY RISING WATERS.  AVOID
DRIVING OVER WATER COVERED ROADS AS THEY MAY BE WASHED OFF.

BAKER
LAT...LON 4047 10281 3994 $10281 4023 10311 4077 10336
          4099 10266

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 4:25 PM MDTTornado WarningBOULincoln35 min
Jun 4, 4:40 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver49 min
Jun 4, 4:59 PM MDTTornado WarningBOULincoln31 min

Nearby

Flash Flood Warnings in Colorado, 1995Every flash flood 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.