Alert archive / Colorado / Flash Flood Warnings in 2004

Flash Flood Warning 6, NWS Pueblo, CO

June 25, 2004Rio Grande County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jun 25, 2004, 12:48 PM MDT for Rio Grande 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
Jun 25, 2004, 12:48 PM MDT (18:48 UTC)
Expired
Jun 25, 2004, 3:45 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Counties, with a storm outline in the text

County Rio Grande County, CO

The radar

The Grand Junction radar (KGJX), 206 km from the middle of the area, began a volume at 18:51 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

Grand Junction, CO (KGJT), launched 12:00Z, 6.8 hours before the alert went out and 229 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, Grand Junction, CO at 12:00Z on 2004-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 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, Grand Junction, CO at 12:00Z on 2004-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
10 J/kg
Mixed-layer CIN
-364 J/kg
Mixed-layer LCL
2446 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
87 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 251849
FFWPUB
COC105-252145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
1248 PM MDT FRI JUN 25 2004

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE MILLION BURN SCAR IN NORTHWESTERN RIO GRANDE COUNTY IN SOUTH
  CENTRAL COLORADO

* UNTIL 345 PM MDT

* AT 1247 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE MILLION BURN 
  SCAR EAST OF SOUTH FORK.

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

IF YOU ARE IN OR CLOSE TO THE WARNED AREA GO TO HIGHER GROUND
IMMEDIATELY. PEOPLE ALONG CREEKS AND DRAINAGE AREAS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATER OR STILL WATER OF UNKNOWN DEPTH ON FOOT
OR BY VEHICLE. AS LITTLE AS 6 INCHES OF WATER MAY CAUSE YOU TO LOSE
CONTROL OF YOUR VEHICLE...AND 2 FEET OF RUSHING WATER CAN CARRY AWAY
MOST VEHICLES...INCLUDING SUVS AND PICKUPS. NEARLY HALF OF ALL FLOOD
FATALITIES ARE VEHICLE RELATED. IF YOUR VEHICLE STALLS IN WATER
ABANDON IT IMMEDIATELY AND GO TO HIGHER GROUND. BE ESPECIALLY
CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF
FLOODING.

LAT...LON 3775 10661 3768 10671 3758 10662 3774 10648

$$
3 follow-up statements
000 
WGUS75 KPUB 251942
FFSPUB
COC105-252145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
141 PM MDT FRI JUN 25 2004

...THE FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE MILLION BURN 
SCAR IN NORTHWESTERN RIO GRANDE COUNTY UNTIL 345 PM MDT FRIDAY 
AFTERNOON...

THUNDERSTORMS CONTINUE TO PRODUCE MODERATE TO LOCALLY HEAVY RAINFALL 
OVER THE MILLION BURN SCAR IN NORTHWESTERN RIO GRANDE COUNTY. ENOUGH 
RAIN HAS FALLEN TO CAUSE FLASH FLOODING. THE STORMS PRODUCING THE 
HEAVY RAIN WILL LIKELY CONTINUE THROUGH AT LEAST 230 PM.

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. ENTIRE HILLSIDES CAN BREAK 
AWAY...CREATING DEVASTATING ROCK SLIDES...MUDSLIDES...AND DEBRIS 
FLOWS. ROADWAYS ARE OFTEN DESTROYED BY THE POWERFUL FORCE OF THE 
RUSHING WATER AND DEBRIS...ESPECIALLY IF THEY PASS THROUGH A CREEK 
BED OR OTHER DRAINAGE AREA.

$$

LW
000 
WGUS75 KPUB 252051
FFSPUB
COC105-252145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
249 PM MDT FRI JUN 25 2004

...THE FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE MILLION BURN 
SCAR IN NORTHWESTERN RIO GRANDE COUNTY UNTIL 345 PM MDT FRIDAY 
AFTERNOON...

THUNDERSTORMS CONTINUE TO PRODUCE LIGHT TO MODERATE RAIN SHOWERS 
OVER THE MILLION BURN SCAR IN NORTHWESTERN RIO GRANDE COUNTY. ENOUGH 
RAIN HAS FALLEN IN SOME AREAS TO CAUSE FLASH FLOODING. THE STORMS 
PRODUCING THE RAINFALL HAVE WEAKENED.  HOWEVER...RUNOFF FROM EARLIER 
STORMS WILL CONTINUE THE THREAT OF FLASH FLOODING.

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. ENTIRE HILLSIDES CAN BREAK 
AWAY...CREATING DEVASTATING ROCK SLIDES...MUDSLIDES...AND DEBRIS 
FLOWS. ROADWAYS ARE OFTEN DESTROYED BY THE POWERFUL FORCE OF THE 
RUSHING WATER AND DEBRIS...ESPECIALLY IF THEY PASS THROUGH A CREEK 
BED OR OTHER DRAINAGE AREA.

$$

LW
000 
WGUS75 KPUB 252147
FFSPUB
COC105-252215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
345 PM MDT FRI JUN 25 2004

...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE FOR THE 
MILLION BURN SCAR IN NORTHWEST RIO GRANDE COUNTY...

ONLY LIGHT SPRINKLES CONTINUE OVER THE MILLION BURN SCAR IN 
NORTHWEST RIO GRANDE COUNTY.  NO REPORTS OF FLASH FLOODING HAVE BEEN 
RECEIVED AND FLASH FLOODING IS NO LONGER EXPECTED.  
CONSEQUENTLY...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE.

$$

LW

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 2:57 PM MDTSevere Thunderstorm WarningPUBLas Animas63 min
Jun 25, 3:08 PM MDTSevere Thunderstorm WarningPUBHuerfano67 min
Jun 25, 4:07 PM MDTSevere Thunderstorm WarningPUBLas Animas113 min
Jun 25, 4:44 PM MDTSevere Thunderstorm WarningPUBOtero91 min

Nearby

Flash Flood Warnings in Colorado, 2004Every flash flood warning in 2004

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.