Alert archive / Colorado / Flash Flood Warnings in 2001

Flash Flood Warning 4, NWS Pueblo, CO

August 31, 2001El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 31, 2001, 4:20 PM MDT for El Paso County, Colorado. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 31, 2001, 4:20 PM MDT (22:20 UTC)
Expired
Aug 31, 2001, 6:15 PM MDT
In force
115 min
Issued by
NWS Pueblo, CO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 76 km from the middle of the area, began a volume at 22:21 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, 10.3 hours before the alert went out and 169 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 2001-08-31Temperature 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 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 2001-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1972 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
-2 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 312229
FFWPUB
COC041-010015-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
420 PM MDT FRI AUG 31 2001

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EL PASO COUNTY IN EAST CENTRAL COLORADO

* UNTIL 615 PM MDT

* AT 420 PM MDT...RADAR SHOWED THE HEAVY RAIN WHICH WAS OVER COLORADO
  SPRINGS HAS WEAKENED. HOWEVER...FLOODING IS STILL CONTINUING IN 
  PLACES IN COLORADO SPRINGS...ESPECIALLY AT 1-25 AND BIJOU. IN 
  ADDITION...MORE RAIN IS MOVING TOWARDS EL PASO COUNTY. IT IS NOT
  KNOWN AT THIS TIME IF VERY HEAVY RAIN WILL REDEVELOP IN THE 
  COUNTY...BUT WITH THE THREAT OF MORE RAIN MOVING INTO THE REGION...
  THE FLASH FLOOD WARNING WILL BE EXTENDED FOR EL PASO COUNTY.

* SOME LOCATIONS AFFECTED WILL BE...
  ALL OF EL PASO COUNTY...ESPECIALLY THE WESTERN HALF OF THE COUNTY.
  THIS INCLUDES ALL OF COLORADO SPRINGS AND ADJACENT AREAS.

PLEASE MONITOR NOAA WEATHER RADIO OR NEW MEDIA FOR UPDATES REGARDING 
THIS FLOODING SITUATION.

LAT...LON 3910 10470 3872 10470 3875 10487 3909 10499

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 12:49 PM MDTSevere Thunderstorm WarningPUBEl Paso56 min
Aug 31, 1:27 PM MDTSevere Thunderstorm WarningPUBPueblo63 min
Aug 31, 2:01 PM MDTSevere Thunderstorm WarningPUBEl Paso59 min
Aug 31, 2:29 PM MDTSevere Thunderstorm WarningPUBPueblo61 min
Aug 31, 4:48 PM MDTSevere Thunderstorm WarningPUBEl Paso57 min

Nearby

Flash Flood Warnings in Colorado, 2001Every flash flood warning in 2001

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.