Alert archive / Colorado / Flash Flood Warnings in 2003
Flash Flood Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at May 15, 2003, 7:45 PM MDT for Elbert County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 15, 2003, 7:45 PM MDT (01:45 UTC)
- Expired
- May 15, 2003, 10:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Elbert County, CO
The radar
The Denver radar (KFTG), 77 km from the middle of the area, began a volume at 01:49 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, 1.8 hours before the alert went out and 94 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
- 68 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1333 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 40 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 160152
FFWBOU
COC039-160445-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
745 PM MDT THU MAY 15 2003
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED ANOTHER
* FLASH FLOOD WARNING FOR...
EASTERN ELBERT COUNTY IN EAST CENTRAL COLORADO
* UNTIL 1045 PM MDT
* AT 745 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
MODERATE TO HEAVY RAIN CONTINUING OVER MUCH OF EASTERN ELBERT
COUNTY. THE STORMS PRODUCING THE RAIN WERE NEARLY STATIONARY.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...AGATE AND
MATHESON. WATERWAYS AFFECTED BY THE HEAVY RUNOFF IN THE WARNING
AREA INCLUDE EAST BIJOU...AGATE...AND BIG SANDY CREEKS OF EASTERN
ELBERT COUNTY.
DOPPLER RADAR ESTIMATED A LARGE AREA OF 4 TO 7 INCHES OF RAIN HAS
FALLEN IN THE WARNING AREA FROM JUST NORTH OF MATHESON NORTHWARD TO
JUST SOUTH OF AGATE HEN EASTWARD TO INTERSTATE 70. THE RAIN STARTED
IN THIS AREA EARLIER THIS AFTERNOON AROUND 3:45 PM. HIGHWAY 86 JUST
WEST OF INTERSTATE 70 HAS BEEN CLOSED DUE TO FLOODING.
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.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 3917 10404 3906 10404 3913 10374 3955 10373
3954 10411 3917 10413
RJK2 follow-up statements
000
WGUS75 KBOU 160314
FFSBOU
COC039-160445-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
912 PM MDT THU MAY 15 2003
A FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN ELBERT COUNTY
UNTIL 1045 PM MDT.
AT 912 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LIGHT TO MODERATE RAIN STILL FALLING OVER EASTERN ELBERT COUNTY THE
STORMS PRODUCING THE RAIN WERE MOVING SOUTH AT 15 MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...AGATE AND
MATHESON. WATERWAYS AFFECTED BY THE HEAVY RUNOFF IN THE WARNING
AREA INCLUDE EAST BIJOU...AGATE...AND BIG SANDY CREEKS OF EASTERN
ELBERT COUNTY.
DOPPLER RADAR ESTIMATED A LARGE AREA OF 4 TO 7 INCHES OF RAIN HAS
FALLEN IN THE WARNING AREA FROM JUST NORTH OF MATHESON NORTHWARD TO
JUST SOUTH OF AGATE THEN EASTWARD TO INTERSTATE 70. THE RAIN
STARTED IN THIS AREA EARLIER THIS AFTERNOON AROUND 3:45 PM. HIGHWAY
86 JUST WEST OF INTERSTATE 70 HAS BEEN CLOSED DUE TO FLOODING.
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.
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
LAT...LON 3917 10404 3906 10404 3913 10374 3955 10373
3954 10411 3917 10413
RJK000
WGUS75 KBOU 160349
FFSBOU
COC039-160400-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
949 PM MDT THU MAY 15 2003
A FLASH FLOOD WARNING FOR EASTERN ELBERT COUNTY IS CANCELLED
AT 949 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
ONLY LIGHT RAIN SHOWERS PUSHING SOUTHWARD ACROSS EASTERN ELBERT
COUNTY. SO THREAT OF ADDITIONAL HEAVY RAIN HAS ENDED SO THE FLASH
FLOOD WARNING FOR EASTERN ELBERT COUNTY IS CANCELLED.
DOPPLER RADAR INDICATED A LARGE AREA OF 4 TO 7 INCHES OF RAIN HAD
FALLEN IN THE WARNING AREA FROM JUST NORTH OF MATHESON NORTHWARD TO
JUST SOUTH OF AGATE THEN EASTWARD TO INTERSTATE 70. HIGHWAY 86 JUST
WEST OF INTERSTATE 70 HAS BEEN CLOSED DUE TO FLOODING EARLIER IN THE
EVENING.
LAT...LON 3917 10404 3906 10404 3913 10374 3955 10373
3954 10411 3917 10413
RJKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 7:57 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
Nearby
Flash Flood Warnings in Colorado, 2003Every flash flood warning in 2003
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.