Alert archive / Colorado / Flash Flood Warnings in 2007

Flash Flood Warning 10, NWS Pueblo, CO

July 19, 2007Custer County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 19, 2007, 3:38 PM MDT for Custer 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 counties it named.

The facts

Issued
Jul 19, 2007, 3:38 PM MDT (21:38 UTC)
Expired
Jul 19, 2007, 5:45 PM MDT
In force
2 hr
Issued by
NWS Pueblo, CO
Area
Whole counties

County Custer County, CO

The radar

The Pueblo radar (KPUX), 111 km from the middle of the area, began a volume at 21:40 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 (KDNR), launched 12:00Z, 9.6 hours before the alert went out and 269 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 2007-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 507 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 2007-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 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
507 J/kg
Mixed-layer CIN
-349 J/kg
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
5 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 192142
FFWPUB
COC027-192345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
338 PM MDT THU JUL 19 2007

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CUSTER COUNTY IN SOUTHEAST COLORADO...

* UNTIL 545 PM MDT...

* AT 330 PM MDT...SPOTTERS REPORTED VERY HEAVY RAIN FROM A STORM   
OVER EXTREME NORTHWESTERN CUSTER COUNTY...OR ABOUT 9 MILES NORTH   
OF WESTCLIFFE THAT WAS NEARLY STATIONARY. SPOTTERS REPORTED RAINFALL 
AMOUNTS OF NEARLY AN INCH IN LESS THAN ONE HOUR WITH WATER RUNNING 
FAST IN DITCHES ALONG THE ROADS.

* THE STORM PRODUCING VERY HEAVY RAIN WILL REMAIN OVER NORTHERN 
CUSTER COUNTY.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF ONE TO TWO INCHES MAY 
HAVE OCCURRED IN THE AREA. SMALL STREAMS AND CREEKS WILL RISE 
RAPIDLY AND MUD FLOWS ARE POSSIBLE IN THE STEEP TERRAIN.

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. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN
IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. MAKE THE SMART
CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3810 10564 3815 10550 3824 10559 3824 10575

$$
1 follow-up statement
000 
WGUS75 KPUB 192336
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
536 PM MDT THU JUL 19 2007

COC027-192346-
CUSTER CO-
536 PM MDT THU JUL 19 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 545 PM MDT FOR NORTHWESTERN
CUSTER COUNTY...

LAT...LON 3810 10564 3815 10550 3824 10559 3824 10575

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 10:44 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more12 hr
Jul 19, 1:53 PM MDTFlash Flood WarningPUBTeller2 hr
Jul 19, 4:47 PM MDTFlash Flood WarningPUBFremont, Pueblo4 hr
Jul 19, 5:17 PM MDTFlash Flood WarningPUBHuerfano3 hr

Nearby

Flash Flood Warnings in Colorado, 2007Every flash flood warning in 2007

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.