Alert archive / Colorado / Flash Flood Warnings in 1989

Flash Flood Warning 1, NWS Denver/Boulder, CO

June 4, 1989Larimer County, Colorado

NWS Denver/Boulder, CO issued this flash flood warning at Jun 4, 1989, 4:07 PM MDT for Larimer County, Colorado. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 1989, 4:07 PM MDT (22:07 UTC)
Expired
Jun 4, 1989, 7:15 PM MDT
In force
3 hr
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Larimer County, CO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.1 hours before the alert went out and 209 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 1989-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 1989-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 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
651 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
-10 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 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 4, 10:22 AM MDT, 5 hours 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER COLORADO
1015 AM MDT  SUN JUN 4 1989

24 HOUR RAINFALL ENDING 7AM THIS MORNING

AGUILAR           0.25
AKRON             1.75
BOULDER           0.43
BRIGHTON          1.10
CABIN CREEK       0.01
EADS              0.93
EASTONVILLE       0.50
FOUNTAIN          1.45
FOWLER 1SE        0.85
HASWELL           0.65
HOLLY             1.40
HOLYOKE           0.44
IDALIA 5NNE       1.20
JOES 2SE          0.45
KASSLER           0.75
LAMAR             1.43
NEW RAYMER        1.68
RALSTON RESERVOIR 0.85
RED FEATHER LAKES 0.49
SEDGWICK 5S       0.23
SPRINGFIELD 7WSW  0.55
TRINIDAD          0.05
TRINIDAD RIVER    0.14
WALSENBURG        0.11
WRAY 1E           0.79
YUMA              0.50
CHERRY CREEK DAM  0.62
GENOA 1W          0.47
LEROY 5WSW        1.34
LINDON            2.70
LOVELAND          2.06
MASONVILLE 3NW    2.37
MASONVILLE 2SE    2.70
BUCKHORN          0.96
HEREFjORD          2.40

Nearby

Flash Flood Warnings in Colorado, 1989Every flash flood warning in 1989

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.