Alert archive / Colorado / Flash Flood Warnings in 2017

Flash Flood Warning 29, NWS Pueblo, CO

July 22, 2017El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 22, 2017, 6:38 PM MDT for El Paso County, Colorado. It was in force for 2 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
Jul 22, 2017, 6:38 PM MDT (00:38 UTC)
Expired
Jul 22, 2017, 8:45 PM MDT
In force
2 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 61 km from the middle of the area, began a volume at 00:40 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 00:00Z, 0.6 hours before the alert went out and 183 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 00:00Z on 2017-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 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 00:00Z on 2017-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
192 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
2771 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

267 
WGUS55 KPUB 230038
FFWPUB
COC041-230245-
/O.NEW.KPUB.FF.W.0029.170723T0038Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
638 PM MDT SAT JUL 22 2017

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  Southwestern El Paso County in east central Colorado...

* Until 845 PM MDT

* At 637 PM MDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Southwest Colorado Springs, Fort Carson, Stratmoor, Security and 
  Security-Widefield.

This includes the following streams and drainages...Little Turkey 
Creek...Rock Creek...Sand Creek...Jimmy Camp Creek...Spring Creek 
and Little Fountain Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3882 10478 3875 10466 3863 10479 3869 10492

$$

BL/KT
3 follow-up statements
864 
WGUS75 KPUB 230050
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
650 PM MDT SAT JUL 22 2017

COC041-230245-
/O.CON.KPUB.FF.W.0029.000000T0000Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
El Paso CO-
650 PM MDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR
SOUTHWESTERN EL PASO COUNTY...

At 649 PM MDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Up to two inches of rain have already
fallen. Flash flooding is expected to begin shortly.

Some locations that will experience flooding include...
Southwest Colorado Springs, Fort Carson, Stratmoor, Security and 
Security-Widefield.

This includes the following streams and drainages...Little Turkey 
Creek...Rock Creek...Sand Creek and Little Fountain Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3882 10478 3875 10466 3863 10479 3869 10492

$$

BL/KT
306 
WGUS75 KPUB 230127
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
727 PM MDT SAT JUL 22 2017

COC041-230245-
/O.CON.KPUB.FF.W.0029.000000T0000Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
El Paso CO-
727 PM MDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR
SOUTHWESTERN EL PASO COUNTY...

At 722 PM MDT, Doppler radar indicated thunderstorm activity was 
decreasing across the warned area. With over two inches of rain 
having already fallen, flash flooding continues to be likely.

Some locations that will experience flooding include...
Southwest Colorado Springs, Fort Carson, Stratmoor, Security and 
Security-Widefield.

This includes the following streams and drainages...Little Turkey 
Creek...Rock Creek...Sand Creek and Little Fountain Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3882 10478 3875 10466 3863 10479 3869 10492

$$

BL/EP
617 
WGUS75 KPUB 230206
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
806 PM MDT SAT JUL 22 2017

COC041-230216-
/O.CAN.KPUB.FF.W.0029.000000T0000Z-170723T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
El Paso CO-
806 PM MDT SAT JUL 22 2017

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN EL PASO COUNTY IS
CANCELLED...

The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.

LAT...LON 3882 10478 3875 10466 3863 10479 3869 10492

$$

BL/EP

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 6:05 PM MDTAreal Flood AdvisoryPUBEl Paso115 min

Nearby

Flash Flood Warnings in Colorado, 2017Every flash flood warning in 2017

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.