Alert archive / Colorado / Flash Flood Warnings in 2005

Flash Flood Warning 12, NWS Pueblo, CO

August 22, 2005Custer County, Pueblo County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 22, 2005, 2:45 PM MDT for Custer County, Pueblo 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
Aug 22, 2005, 2:45 PM MDT (20:45 UTC)
Expired
Aug 22, 2005, 5:45 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Counties, with a storm outline in the text

Counties Custer County, CO, Pueblo County, CO

The radar

The Pueblo radar (KPUX), 80 km from the middle of the area, began a volume at 20:45 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, 8.8 hours before the alert went out and 243 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 2005-08-22Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2005-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1701 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS55 KPUB 222048
FFWPUB
COC027-101-222345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
245 PM MDT MON AUG 22 2005

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL CUSTER COUNTY IN SOUTHEAST COLORADO.
  WEST CENTRAL PUEBLO COUNTY IN SOUTHEAST COLORADO.

* UNTIL 545 PM MDT.

* AT 241 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED VERY
  HEAVY RAIN FROM A THUNDERSTORM OVER EXTREME WEST CENTRAL PUEBLO
  COUNTY...OR ABOUT 23 MILES WEST OF PUEBLO...MOVING SOUTHEAST AT 20
  MPH.

THIS WARNING IS FOR THE MASON GULCH BURN SCAR.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF UP FOUR TENTHS OF AN 
INCH HAVE OCCURRED OVER THE MASON GULCH BURN SCAR AND ADDITIONAL 
RAINFALL OF ONE HALF OF AN INCH TO 1 INCH IS EXPECTED IN THAT AREA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

JUST A SMALL AMOUNT OF RAINFALL ON A BURN SCAR CAN LEAD TO FLASH
FLOODING. WATER THAT IS NORMALLY ABSORBED BY VEGETATION...RUNS OFF
ALMOST INSTANTLY. THIS CAUSES CREEKS AND DRAINAGE AREAS TO FLOOD AT A
MUCH FASTER RATE THAN NORMAL. ADDITIONALLY...THE SOILS IN A BURN SCAR
BECOME VERY UNSTABLE WHEN IT RAINS...AND THIS CAN RESULT IN FALLING
ROCKS OR MUD FLOWS. ROADWAYS CAN BE WASHED OUT BY THE FORCE OF THE
RUSHING WATER.

LAT...LON 3824 10502 3818 10514 3808 10502 3818 10494

$$
3 follow-up statements
000 
WGUS75 KPUB 222103
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
301 PM MDT MON AUG 22 2005

COC027-101-222345-
CUSTER CO-PUEBLO CO-
301 PM MDT MON AUG 22 2005

...THE FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL PUEBLO
AND NORTHEASTERN CUSTER COUNTIES UNTIL 545 PM MDT...

AT 258 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
SHOW A THUNDERSTORM PRODUCING VERY HEAVY RAIN.  THIS STORM WAS
LOCATED OVER EXTREME WEST CENTRAL PUEBLO COUNTY...OR ABOUT 22 MILES
SOUTHWEST OF PUEBLO...MOVING SOUTHEAST AT 20 MPH.

THIS WARNING IS FOR THE MASON GULCH BURN SCAR.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS UP TO 1.75 INCHES HAVE 
OCCURRED OVER THE EASTERN PARTS OF THE MASON GULCH BURN SCAR...AND 
ADDITIONAL RAINFALL OF A HALF AN INCH TO 1 INCH IS EXPECTED IN THAT 
AREA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

JUST A SMALL AMOUNT OF RAINFALL ON A BURN SCAR CAN LEAD TO FLASH
FLOODING. WATER THAT IS NORMALLY ABSORBED BY VEGETATION...RUNS OFF
ALMOST INSTANTLY. THIS CAUSES CREEKS AND DRAINAGE AREAS TO FLOOD AT A
MUCH FASTER RATE THAN NORMAL. ADDITIONALLY...THE SOILS IN A BURN SCAR
BECOME VERY UNSTABLE WHEN IT RAINS...SOMETIMES CREATING ROCK SLIDES
AND MUDFLOWS. ROADWAYS CAN BE WASHED OUT BY THE FORCE OF THE RUSHING
WATER.

LAT...LON 3824 10502 3818 10514 3808 10502 3818 10494

$$
000 
WGUS75 KPUB 222128
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
325 PM MDT MON AUG 22 2005

COC027-101-222345-
CUSTER CO-PUEBLO CO-
325 PM MDT MON AUG 22 2005

...THE FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL PUEBLO
AND NORTHEASTERN CUSTER COUNTIES UNTIL 545 PM MDT...

AT 320 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
SHOW A THUNDERSTORM PRODUCING VERY HEAVY RAIN.  THIS STORM WAS
LOCATED OVER WEST CENTRAL PUEBLO COUNTY...OR ABOUT 18 MILES SOUTHWEST
OF PUEBLO...MOVING SOUTHEAST AT 15 MPH.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF 1 TO 1.75 INCHES HAVE 
OCCURRED OVER THE NORTHERN TWO THIRDS OF THE MASON GULCH BURN SCAR. 
THE THUNDERSTORM...WHICH PRODUCED THE HEAVY RAIN....HAS MOVED EAST 
OF THE REGION.  HOWEVER...RAPID RUNOFF FROM THE EARLIER HEAVY RAIN 
WILL CONTINUE...WITH FLASH FLOODING OF CREEKS AND SMALL DRAINAGES 
LIKELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.

JUST A SMALL AMOUNT OF RAINFALL ON A BURN SCAR CAN LEAD TO FLASH
FLOODING. WATER THAT IS NORMALLY ABSORBED BY VEGETATION...RUNS OFF
ALMOST INSTANTLY. THIS CAUSES CREEKS AND DRAINAGE AREAS TO FLOOD AT A
MUCH FASTER RATE THAN NORMAL. ADDITIONALLY...THE SOILS IN A BURN SCAR
BECOME VERY UNSTABLE WHEN IT RAINS...SOMETIMES CREATING ROCK SLIDES
AND MUDFLOWS. ROADWAYS CAN BE WASHED OUT BY THE FORCE OF THE RUSHING
WATER.

LAT...LON 3824 10502 3818 10514 3808 10502 3818 10494

$$
000 
WGUS75 KPUB 222215
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
415 PM MDT MON AUG 22 2005

COC027-101-222225-
CUSTER CO-PUEBLO CO-
415 PM MDT MON AUG 22 2005

...THE FLASH FLOOD WARNING FOR WEST CENTRAL PUEBLO AND NORTHEASTERN
CUSTER COUNTIES HAS BEEN CANCELED...

HEAVY RAIN AND FLASH FLOODING ARE NO LONGER OCCURRING IN THIS AREA.

LAT...LON 3824 10502 3818 10514 3808 10502 3818 10494

$$

Nearby

Flash Flood Warnings in Colorado, 2005Every flash flood warning in 2005

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.