Alert archive / Colorado / Flash Flood Warnings in 2012

Flash Flood Warning 16, NWS Pueblo, CO

September 12, 2012El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Sep 12, 2012, 8:47 AM MDT for El Paso County, Colorado. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 12, 2012, 8:47 AM MDT (14:47 UTC)
Expired
Sep 12, 2012, 2:30 PM MDT
In force
6 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 84 km from the middle of the area, began a volume at 14:47 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.

What was reported inside it

TimeReportWhereRemark
Sep 12, 11:13 AM MDTHEAVY RAIN 0.826 Nnw Colorado Springs, COFELL SINCE 8 AM.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 2.8 hours before the alert went out and 179 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 2012-09-12Temperature 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 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 2012-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -72 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
781 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-72 m²/s²
0-3 km storm-relative helicity
-69 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.

716 
WGUS55 KPUB 121447
FFWPUB
COC041-122030-
/O.NEW.KPUB.FF.W.0016.120912T1447Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
847 AM MDT WED SEP 12 2012

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE WALDO CANYON BURN SCAR AREA IN WEST CENTRAL EL PASO COUNTY IN  
  EAST CENTRAL COLORADO...

* UNTIL 230 PM MDT

* AT 840 AM MDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS    
  PRODUCING VERY HEAVY RAINFALL ACROSS THE WALDO CANYON BURN SCAR    
  AREA.  WEATHER SPOTTERS AND AUTOMATED GAGES ON AND NEAR THE SCAR   
  INDICATE THAT A THIRD TO A HALF INCH OF RAIN HAS ALREADY FALLEN    
  ACROSS THE SCAR SINCE ABOUT 6 AM.  AN ADDITIONAL HALF INCH OF      
  RAIN OR MORE IS EXPECTED THROUGH THE COURSE OF THE DAY.            
  TOTAL RAINFALL ACCUMULATIONS COULD EXCEED AN INCH OR MORE BY       
  AFTERNOON.

* THIS IS VERY DANGEROUS LIFE THREATENING SITUATION. RUNOFF FROM THIS
  EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME
  LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...COLORADO
  SPRINGS...CASCADE...CHIPITA PARK...CRYSTOLA...GREEN MOUNTAIN FALLS
  AND MANITOU SPRINGS.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...

MONUMENT CREEK...FOUNTAIN CREEK...FRENCH CREEK...NORTH DOUGLAS
CREEK...INCLUDING OAK VALLEY...AND SUBDIVISIONS TO MONUMENT CREEK...
WEST MONUMENT CREEK...INCLUDING EXTREME SOUTHERN AIR FORCE ACADEMY...
CAMP CREEK...INCLUDING QUEENS CANYON...GARDEN OF THE GODS...ROCKLEDGE
RANCH...31ST STREET CHANNEL...WALDO CANYON...INCLUDING MANITOU
SPRINGS...WELLINGTON GULCH...INCLUDING CHIPITA PARK...SAND GULCH...
INCLUDING CHIPITA PARK...DRY CREEK...INCLUDING PEREGRINE AND
ROCKRIMMON SUBDIVISIONS...SOUTH DOUGLAS CREEK...INCLUDING MOUNTAIN
SHADOWS...HOLLAND PARK AND EAST TO MONUMENT CREEK AND WILLIAMS
CANYON...INCLUDING MANITOU SPRINGS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF A HALF INCH OR MORE ARE POSSIBLE IN 
THE WARNED AREA.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... 
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING 
STREAM... EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$
5 follow-up statements
128 
WGUS75 KPUB 121545
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
945 AM MDT WED SEP 12 2012

COC041-122030-
/O.CON.KPUB.FF.W.0016.000000T0000Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
945 AM MDT WED SEP 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE WALDO CANYON BURN 
SCAR AREA IN WEST CENTRAL EL PASO COUNTY UNTIL 230 PM MDT...

AT 937 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND WEATHER 
SPOTTERS INDICATED MODERATE TO HEAVY RAINFALL ACROSS THE WALDO 
CANYON BURN SCAR AREA.  REPORTS FROM WEATHER SPOTTERS AND AUTOMATED 
GAGES IN AND AROUND THE SCAR AREA INDICATE THAT A HALF TO THREE 
QUARTERS OF AN INCH OF RAIN HAS ALREADY FALLEN.  RAINFALL AMOUNTS BY 
THIS AFTERNOON COULD REACH AN INCH OR MORE OVER THE ENTIRE BURN SCAR 
AREA.

THIS IS A VERY DANGEROUS LIFE THREATENING SITUATION. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...WESTERN COLORADO SPRINGS... 
CASCADE...CHIPITA PARK...CRYSTOLA...GREEN MOUNTAIN FALLS AND MANITOU 
SPRINGS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...WESTERN 
COLORADO SPRINGS...CASCADE...CHIPITA PARK...CRYSTOLA...GREEN 
MOUNTAIN FALLS AND MANITOU SPRINGS.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...

MONUMENT CREEK...FOUNTAIN CREEK...FRENCH CREEK...NORTH DOUGLAS
CREEK...INCLUDING OAK VALLEY...AND SUBDIVISIONS TO MONUMENT CREEK...
WEST MONUMENT CREEK...INCLUDING EXTREME SOUTHERN AIR FORCE ACADEMY...
CAMP CREEK...INCLUDING QUEENS CANYON...GARDEN OF THE GODS...ROCKLEDGE
RANCH...31ST STREET CHANNEL...WALDO CANYON...INCLUDING MANITOU
SPRINGS...WELLINGTON GULCH...INCLUDING CHIPITA PARK...SAND GULCH...
INCLUDING CHIPITA PARK...DRY CREEK...INCLUDING PEREGRINE AND
ROCKRIMMON SUBDIVISIONS...SOUTH DOUGLAS CREEK...INCLUDING MOUNTAIN
SHADOWS...HOLLAND PARK AND EAST TO MONUMENT CREEK AND WILLIAMS
CANYON...INCLUDING MANITOU SPRINGS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$
740 
WGUS75 KPUB 121716
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1116 AM MDT WED SEP 12 2012

COC041-122030-
/O.CON.KPUB.FF.W.0016.000000T0000Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
1116 AM MDT WED SEP 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL EL PASO
COUNTY UNTIL 230 PM MDT...

AT 1106 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND WEATHER 
SPOTTERS INDICATED MODERATE RAINFALL ACROSS THE WALDO CANYON BURN 
SCAR AREA.  DOPPLER RADAR INDICATED THAT AN AREA OF HEAVIER RAINFALL 
WAS SHIFTING SOUTH TOWARD THE BURN SCAR AREA.  RAINFALL RATES UNDER 
THE APPROACHING AREA OF HEAVIER RAINFALL WERE ESTIMATED AT UP TO 
0.25 TO 0.50 INCHES PER HOUR.  THIS AMOUNT OF RAINFALL WILL LIKELY 
INITIATE FLASH FLOODING AND DEBRIS FLOWS ACROSS THE BURN SCAR AREA 
INTO THE AFTERNOON.

THIS IS A VERY DANGEROUS LIFE THREATENING SITUATION. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...WESTERN COLORADO SPRINGS...  
CASCADE...CHIPITA PARK...CRYSTOLA...GREEN MOUNTAIN FALLS AND MANITOU 
SPRINGS.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...

MONUMENT CREEK...FOUNTAIN CREEK...FRENCH CREEK...NORTH DOUGLAS 
CREEK...INCLUDING OAK VALLEY...AND SUBDIVISIONS TO MONUMENT 
CREEK...WEST MONUMENT CREEK...INCLUDING EXTREME SOUTHERN AIR FORCE 
ACADEMY...CAMP CREEK...INCLUDING QUEENS CANYON...GARDEN OF THE 
GODS...ROCKLEDGE RANCH...31ST STREET CHANNEL...WALDO 
CANYON...INCLUDING MANITOU SPRINGS...WELLINGTON GULCH...INCLUDING 
CHIPITA PARK...SAND GULCH...INCLUDING CHIPITA PARK...DRY 
CREEK...INCLUDING PEREGRINE AND ROCKRIMMON SUBDIVISIONS...SOUTH 
DOUGLAS CREEK...INCLUDING MOUNTAIN SHADOWS...HOLLAND PARK AND EAST 
TO MONUMENT CREEK AND WILLIAMS CANYON...INCLUDING MANITOU SPRINGS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$
288 
WGUS75 KPUB 121817
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1217 PM MDT WED SEP 12 2012

COC041-122030-
/O.CON.KPUB.FF.W.0016.000000T0000Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
1217 PM MDT WED SEP 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL EL PASO
COUNTY UNTIL 230 PM MDT...

AT 1211 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND WEATHER 
SPOTTERS INDICATED MODERATE RAINFALL ACROSS THE WALDO CANYON BURN 
SCAR AREA...WITH AN AREA OF HEAVIER RAINFALL DRIFTING SOUTH ACROSS 
THE SCAR. AUTOMATED GAGES AND SPOTTER REPORTS INDICATED RAINFALL 
AMOUNTS OF THREE QUARTERS OF AN INCH TO JUST OVER AN INCH HAVE 
ALREADY FALLEN ACROSS THE BURN SCAR.  ADDITIONAL RAINFALL AMOUNTS OF 
A HALF INCH OR MORE ARE EXPECTED THROUGHOUT THE REMAINDER OF THE DAY.

THIS IS A VERY DANGEROUS LIFE THREATENING SITUATION. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...WESTERN COLORADO SPRINGS... 
CASCADE...CHIPITA PARK...CRYSTOLA...GREEN MOUNTAIN FALLS AND MANITOU 
SPRINGS.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...

MONUMENT CREEK...FOUNTAIN CREEK...FRENCH CREEK...NORTH DOUGLAS
CREEK...INCLUDING OAK VALLEY...AND SUBDIVISIONS TO MONUMENT CREEK...
WEST MONUMENT CREEK...INCLUDING EXTREME SOUTHERN AIR FORCE ACADEMY...
CAMP CREEK...INCLUDING QUEENS CANYON...GARDEN OF THE GODS...ROCKLEDGE
RANCH...31ST STREET CHANNEL...WALDO CANYON...INCLUDING MANITOU
SPRINGS...WELLINGTON GULCH...INCLUDING CHIPITA PARK...SAND GULCH...
INCLUDING CHIPITA PARK...DRY CREEK...INCLUDING PEREGRINE AND
ROCKRIMMON SUBDIVISIONS...SOUTH DOUGLAS CREEK...INCLUDING MOUNTAIN
SHADOWS...HOLLAND PARK AND EAST TO MONUMENT CREEK AND WILLIAMS
CANYON...INCLUDING MANITOU SPRINGS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$
508 
WGUS75 KPUB 121923
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
123 PM MDT WED SEP 12 2012

COC041-122030-
/O.CON.KPUB.FF.W.0016.000000T0000Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
123 PM MDT WED SEP 12 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL EL PASO
COUNTY UNTIL 230 PM MDT...

AT 113 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND WEATHER 
SPOTTERS INDICATED MODERATE RAINFALL ACROSS THE WALDO CANYON BURN 
SCAR AREA. AUTOMATED GAGES INDICATED 1.03 TO 1.22 INCHES OF RAIN HAD 
FALLEN ACROSS THE SOUTHERN AND WESTERN PORTIONS OF THE SCAR...  
DRAINING DOWN TO HIGHWAY 24 AND FOUNTAIN CREEK...WHILE 0.79 TO 1.08 
INCHES OF RAIN HAD FALLEN ON THE NORTHERN AND EASTERN PORTIONS OF 
THE SCAR...DRAINING INTO MONUMENT CREEK. TOTAL RAINFALL AMOUNTS 
ACROSS THE BURN SCAR AREA MAY EXCEED 1.50 INCHES BY LATER IN THE 
AFTERNOON.

THIS IS A VERY DANGEROUS LIFE THREATENING SITUATION. RUNOFF FROM THIS
EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS
THAT WILL EXPERIENCE FLOODING INCLUDE...WESTERN COLORADO SPRINGS... 
CASCADE...CHIPITA PARK...CRYSTOLA...GREEN MOUNTAIN FALLS AND MANITOU 
SPRINGS.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...

MONUMENT CREEK...FOUNTAIN CREEK...FRENCH CREEK...NORTH DOUGLAS 
CREEK...INCLUDING OAK VALLEY...AND SUBDIVISIONS TO MONUMENT 
CREEK...WEST MONUMENT CREEK...INCLUDING EXTREME SOUTHERN AIR FORCE 
ACADEMY...CAMP CREEK...INCLUDING QUEENS CANYON...GARDEN OF THE 
GODS...ROCKLEDGE RANCH...31ST STREET CHANNEL...WALDO 
CANYON...INCLUDING MANITOU SPRINGS...WELLINGTON GULCH...INCLUDING 
CHIPITA PARK...SAND GULCH...INCLUDING CHIPITA PARK...DRY 
CREEK...INCLUDING PEREGRINE AND ROCKRIMMON SUBDIVISIONS...SOUTH 
DOUGLAS CREEK...INCLUDING MOUNTAIN SHADOWS...HOLLAND PARK AND EAST 
TO MONUMENT CREEK AND WILLIAMS CANYON...INCLUDING MANITOU SPRINGS.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH
ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$
620 
WGUS75 KPUB 122036
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
236 PM MDT WED SEP 12 2012

COC041-122041-
/O.EXP.KPUB.FF.W.0016.000000T0000Z-120912T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
236 PM MDT WED SEP 12 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WEST CENTRAL EL
PASO COUNTY WILL BE ALLOWED TO EXPIRE AT 230 PM MDT...

EXCESS RUNOFF FROM HEAVY RAIN IS SEEMINGLY BEING HANDLED WELL BY THE 
WALDO CANYON BURN SCAR AREA.  DESPITE WIDESPREAD RAINFALL AMOUNTS OF 
1.08 TO 1.38 INCHES ACROSS SOUTHERN AND WESTERN PORTIONS OF THE BURN 
SCAR AND WIDESPREAD AMOUNTS OF 0.87 TO 1.19 INCHES ACROSS NORTHERN 
AND EASTERN PORTIONS OF THE SCAR...ONLY MINOR RUNOFF HAS BEEN 
OCCURRING ACROSS THE WALDO CANYON SCAR AREA.  APPARENTLY...THE RAIN 
HAS BEEN FALLING AT A SLOW ENOUGH RATE TO BE ABSORBED BY THE WALDO 
CANYON SCAR DRAINAGE BASINS.  

ADDITIONAL RAIN IS EXPECTED...POSSIBLY UP TO A HALF INCH MORE...BUT 
IT IS FELT THAT THE RAIN WILL FALL AT A SLOW ENOUGH RATE AS TO NOT 
BE A PROBLEM.  CONSEQUENTLY...THE FLASH FLOOD WARNING HAS BEEN 
ALLOWED TO EXPIRE.  IT HAS BEEN REPLACED BY A FLOOD ADVISORY FOR THE 
SAME AREA THROUGH 8 PM MDT.

IF FLOODING IS OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW 
ENFORCEMENT AGENCY.  MINOR FLOOD AND DEBRIS PROBLEMS ARE STILL 
POSSIBLE THROUGH EARLY THIS EVENING.  THIS IS STILL A POTENTIALLY 
DANGEROUS SITUATION.  PLEASE REMAIN ALERT TO WEATHER CONDITIONS IN 
YOUR AREA.

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

LAT...LON 3898 10487 3893 10485 3889 10485 3885 10491
      3889 10497 3893 10503 3896 10503 3899 10500
      3900 10495

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 2:17 AM MDTWinter Weather AdvisoryPUBAlamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more15 hr
Sep 12, 7:22 AM MDTAreal Flood AdvisoryPUBEl Paso3 hr
Sep 12, 7:31 AM MDTAreal Flood AdvisoryPUBEl Paso3 hr
Sep 12, 10:59 AM MDTAreal Flood AdvisoryPUBFremont6 hr
Sep 12, 2:25 PM MDTAreal Flood AdvisoryPUBEl Paso3 hr

Nearby

Flash Flood Warnings in Colorado, 2012Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.