Alert archive / Colorado / Flash Flood Warnings in 2013

Flash Flood Warning 21, NWS Pueblo, CO

August 14, 2013El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 14, 2013, 5:06 PM MDT for El Paso County, Colorado. It was in force for 114 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
Aug 14, 2013, 5:06 PM MDT (23:06 UTC)
Expired
Aug 14, 2013, 7:00 PM MDT
In force
114 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 81 km from the middle of the area, began a volume at 23:10 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 (KDEN), launched 12:00Z, 11.1 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 2013-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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, Denver, CO at 12:00Z on 2013-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939587897Sfc1 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
29 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
110 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.

309 
WGUS55 KPUB 142306
FFWPUB
COC041-150100-
/O.NEW.KPUB.FF.W.0021.130814T2306Z-130815T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
506 PM MDT WED AUG 14 2013

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 700 PM MDT

* AT 504 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL ACROSS THE WALDO CANYON
  BURN SCAR. UP TO A HALF INCH OF RAIN OR MORE WILL BE POSSIBLE      
  ON...ESPECIALLY THE SOUTH FACE OF THE SCAR...ALONG US HIGHWAY      
  24...THROUGH 6 PM MDT.

* 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 AND MANITOU SPRINGS.

TAKE PRECAUTIONS NOW.  MOVE TO HIGHER GROUND.  FLASH FLOODING WILL 
BE A STRONG POSSIBILITY FOR AREAS ALONG US 24 THROUGH 6 PM.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
FOUNTAIN CREEK...FRENCH CREEK...MONUMENT 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...CABIN CREEK...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.

LAT...LON 3890 10481 3883 10494 3896 10501 3900 10495

$$
1 follow-up statement
864 
WGUS75 KPUB 150008
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
608 PM MDT WED AUG 14 2013

COC041-150021-
/O.CAN.KPUB.FF.W.0021.000000T0000Z-130815T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EL PASO CO-
608 PM MDT WED AUG 14 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR THE WALDO CANYON 
BURN SCAR AREA IN WEST CENTRAL EL PASO COUNTY IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA ARE BEGINNING TO RECEDE...ENDING THE 
FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO 
YOUR LOCAL LAW ENFORCEMENT AGENCY.

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 3890 10481 3883 10494 3896 10501 3900 10495

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 5:43 PM MDTAreal Flood AdvisoryPUBEl Paso107 min

Nearby

Flash Flood Warnings in Colorado, 2013Every flash flood warning in 2013

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.