Alert archive / Colorado / Flash Flood Warnings in 1996
Flash Flood Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Sep 14, 1996, 8:23 PM MDT for Jefferson County, Colorado. It was in force for 97 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
- Sep 14, 1996, 8:23 PM MDT (02:23 UTC)
- Expired
- Sep 14, 1996, 10:00 PM MDT
- In force
- 97 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Jefferson County, CO
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 2.4 hours before the alert went out and 176 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1915 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 150223
FFWDEN
COC059-150400-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
823 PM MDT SAT SEP 14 1996
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 1000 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEAST COLORADO
SOUTHERN JEFFERSON
INCLUDING THE FOLLOWING LOCATIONS
BUFFALO CREEK AND SOUTH PLATTE
AT 820 PM MDT THE JEFFERSON COUNTY SHERIFFS DEPARTMENT REPORTED
FLASH FLOODING IN THE BUFFALO CREEK AREA WITH WATER THREATENING TO
RISE OVER ROADS AND OVERLAND FLOW.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS
OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS,
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.
THE RAIN WILL DECREASE OVER THE NEXT HALF HOUR...SO THE PEAK OF
FLOODING SHOULD END BY 10 PM.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
DENVE2R.
LAT...LON 3947 10531 3942 10514 3925 10526 3940 10532
GIMMESTAD
&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, Sep 14, 2:55 PM MDT, 5 hours 28 minutes before
COZ038>040-045-142130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 253 PM MDT SAT SEP 14 1996 ...SCATTERED THUNDERSTORMS DEVELOPING OVER SOUTHEAST DENVER... AT 250 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS DEVELOPING SOUTH OF A LINE FROM AURORA TO LOWRY AIR FORCE BASE. THESE STORMS WILL PRODUCE HEAVY RAIN UP TO 1" PER HOUR ALONG WITH SMALL HAIL AND DANGEROUS LIGHTNING. SOME MINOR STREET FLOODING MAY ALSO OCCUR ESPECIALLY IN LOW LYING AREAS. THE STORMS WERE MOVING NORTH NORTHEAST AT 15 MPH. KLEYLA
Special weather statement, Sep 14, 3:36 PM MDT, 4 hours 47 minutes before
COZ038>040-045-142200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 335 PM MDT SAT SEP 14 1996 ...SCATTERED THUNDERSTORMS CONTINUING OVER EAST DENVER... AT 330 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS OVER EASTERN DENVER MOVING NORTH AT 15 MPH. THESE STORMS WILL PRODUCE RAINFALL AMOUNTS TO 1.5" IN ONE HOUR ALONG WITH SMALL HAIL AND DANGEROUS LIGHTNING. THESE THUNDERSTORMS WILL MOVE INTO IRONDALE AND COMMERCE CITY BY 4 PM. PERSONS SHOULD BE AWARE THAT HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY WASH OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. KLEYLA
Special weather statement, Sep 14, 4:16 PM MDT, 4 hours 7 minutes before
COZ035-036-038>040-142300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 417 PM MDT SAT SEP 14 1996 ...SCATTERED THUNDERSTORMS CONTINUE OVER PORTIONS OF THE URBAN CORRIDOR THIS AFTERNOON... AT 413 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED THUNDERSTORMS EXTENDING FROM NEAR MORRISON TO EDGEWATER TO THORTON MOVING NORTH NORTHEAST AT 15 MPH.. THESE STORMS WILL PRODUCE HEAVY RAIN UP TO 1" PER HOUR...SMALL HAIL AND DANGEROUS LIGHNTING. PERSONS SHOULD BE AWARE THAT HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY WASH OUT. WATER LEVELS OF SMALL STREAMS AN.D RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. KLEYLA
Special weather statement, Sep 14, 5:01 PM MDT, 3 hours 22 minutes before
COZ035-036-038>040-142345 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 502 PM MDT SAT SEP 14 1996 ...SCATTERED THUNDERSTORMS CONTINUE OVER PORTIONS OF THE URBAN CORRIDOR THIS AFTERNOON... AT 458 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM BOULDER TO NIWOT TO LONGMONT. OTHER SCATTERED THUNDERSTORMS EXTENDED FROM BROOMFIELD NORTHEAST INTO SOUTHERN WELD COUNTY NEAR HUDSON. THESE THUNDERSTORMS WILL PRODUCE RAINFALL AMOUNTS UP TO 1.5" PER HOUR...SMALL HAIL AND DANGEROUS LIGHTNING. THESE STORMS WERE MOVING NORTH NORTHEAST AT 15 MPH. PERSONS SHOULD BE AWARE THAT HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DjITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY WASH OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. KLEYLA
Nearby
Flash Flood Warnings in Colorado, 1996Every flash flood 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.