Alert archive / Colorado / Flash Flood Warnings in 2002
Flash Flood Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 3, 2002, 12:32 PM MDT for Jefferson County, Colorado. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2002, 12:32 PM MDT (18:32 UTC)
- Expired
- Jul 3, 2002, 2:30 PM MDT
- In force
- 118 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Jefferson County, CO
The radar
The Denver radar (KFTG), 90 km from the middle of the area, began a volume at 18:34 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, 6.5 hours before the alert went out and 192 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
- 295 J/kg
- Mixed-layer CIN
- -378 J/kg
- Mixed-layer LCL
- 2757 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS55 KBOU 031832
FFWDEN
COC059-032030-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
1230 PM MDT WED JUL 3 2002
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* FLASH FLOOD WARNING FOR THE HAYMAN BURN AREA OF SOUTHWESTERN
JEFFERSON COUNTY IN NORTHEAST COLORADO
* INCLUDING THE DRAINAGE AREAS OF WIGWAM...GOOSE...AND SOUTH PLATTE.
* UNTIL 230 PM MDT
* AT 1230 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN OVER SOUTHWESTERN JEFFERSON COUNTY...OR ABOUT 37
MILES NORTHWEST OF COLORADO SPRINGS. THE STORM PRODUCING THE HEAVY
RAIN WAS MOVING NORTH AT 5 MPH.
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 TO PROTECT LIFE AND PROPERTY. 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.
RADAR WAS INDICATING 0.25 TO 0.50 INCH OF RAIN HAVE FALLEN OVER THE
BURN AREA SINCE 11:50 AM MDT.
LAT...LON 3927 10539 3914 10539 3914 10534 3922 10529
3926 10524 3931 10521 3934 10530
RJK2 follow-up statements
000
WGUS55 KBOU 031931
FFSDEN
COC059-032030-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
132 PM MDT WED JUL 3 2002
...FLASH FLOOD WARNING FOR THE HAYMAN FIRE AREA OF SOUTHERN
JEFFERSON COUNTY REMAINS IN EFFECT THROUGH 230 PM...
THE FLASH FLOOD WARNING FOR THE HAYMAN BURN AREA OF SOUTHWESTERN
JEFFERSON COUNTY IN NORTHEAST COLORADO REMAINS IN EFFECT UNTIL 230
PM MDT. THE WARNING INCLUDES THE DRAINAGE AREAS OF WIGWAM...GOOSE
...AND SOUTH PLATTE.
AT 132 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
SHOWERS AND THUNDERSTORMS HAVE MOVED OUT OF THE WARNING AREA TO THE
NORTH AT THIS TIME. THE RADAR RAINFALL ESTIMATES INDICATED THAT 0.3
TO 0.6 INCHES OF RAIN HAD FALLEN OVER THE BURN AREA.
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EVENING FOR THE BURN AREA.
LAT...LON 3927 10539 3914 10539 3914 10534 3922 10529
3926 10524 3931 10521 3934 10530
RJK000
WGUS55 KBOU 032027
FFSDEN
COC059-032030-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
227 PM MDT WED JUL 3 2002
...THE FLASH FLOOD WARNING FOR THE HAYMAN FIRE AREA OF SOUTHERN
JEFFERSON COUNTY HAS EXPIRED...
THE FLASH FLOOD WARNING FOR THE HAYMAN BURN AREA OF SOUTHWESTERN
JEFFERSON COUNTY IN NORTHEAST COLORADO HAS EXPIRED AT 230 PM MDT.
THE WARNING INCLUDED THE DRAINAGE AREAS OF WIGWAM...GOOSE...AND
SOUTH PLATTE.
AT 227 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED NO
RAINFALL CURRENTLY FALLING OVER THE HAYMAN FIRE BURN AREA...HOWEVER
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EVENING.
THE RADAR RAINFALL ESTIMATES INDICATED THAT 0.3 TO 0.6 INCHES OF
RAIN HAD FALLEN OVER THE BURN AREA. NO FLOODING WAS REPORTED TO THE
NATIONAL WEATHER SERVICE AT THIS TIME.
LAT...LON 3927 10539 3914 10539 3914 10534 3922 10529
3926 10524 3931 10521 3934 10530
RJKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 7:37 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 53 min |
| Jul 2, 11:49 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 56 min |
| Jul 3, 12:05 AM MDT | Flash Flood Warning | BOU | Denver, Jefferson | 115 min |
| Jul 3, 1:01 PM MDT | Flash Flood Warning | BOU | Douglas | 3 hr |
| Jul 3, 2:05 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 55 min |
| Jul 3, 2:29 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 61 min |
| Jul 3, 2:31 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 59 min |
| Jul 3, 3:23 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 52 min |
| Jul 3, 3:51 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 84 min |
| Jul 3, 4:22 PM MDT | Flash Flood Warning | BOU | Douglas, Jefferson, Park | 3 hr |
Nearby
Flash Flood Warnings in Colorado, 2002Every flash flood warning in 2002
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.