Alert archive / Colorado / Flash Flood Warnings in 1997

Flash Flood Warning 12, NWS Pueblo, CO

July 29, 1997El Paso County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 29, 1997, 9:59 PM MDT for El Paso County, Colorado. It was in force for 116 min. 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 29, 1997, 9:59 PM MDT (03:59 UTC)
Expired
Jul 29, 1997, 11:55 PM MDT
In force
116 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 51 km from the middle of the area, began a volume at 03:59 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 00:00Z, 4.0 hours before the alert went out and 160 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 1997-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 154 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1997-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
154 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1447 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
67 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.

555 
RWUS01 KPUB 300359 RRA
FFWPUB
COC041-300555-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
959 PM MDT TUE JUL 29 1997

* FLASH FLOOD WARNING FOR
  SOUTHERN AND EASTERN EL PASO COUNTY IN EAST CENTRAL COLORADO

* UNTIL 1155 PM MDT
 
* SOME RIVERS...CREEKS OR AREAS AFFECTED
  BLACK SQUIRREL CREEK
  RURAL AREAS EAST AND SOUTHEAST OF FOUNTAIN

* CAUSE AND EFFECT
  VERY STRONG SLOW-MOVING THUNDERSTORMS PRODUCING RAINFALL RATES OF 2
  TO 3 INCHES AN HOUR

* FORECAST CONDITIONS
  RAINFALL RATES OF 2 TO 3 INCHES AN HOUR WILL AFFECT THE LOW
  LYING AREAS ALONG BLACK SQUIRREL CREEK NEAR THE COMMUNITY OF
  ELLICOTT AS WELL AS RURAL AREAS EAST AND SOUTHEAST OF FOUNTAIN
  THROUGH 1155 PM MDT.

LEAVE FLOOD PRONE OR LOW LYING AREAS IMMEDIATELY.

JK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 6:57 PM MDTFlash Flood WarningPUBProwers63 min
Jul 29, 6:57 PM MDTSevere Thunderstorm WarningPUBProwers63 min
Jul 29, 7:37 PM MDTSevere Thunderstorm WarningPUBBent63 min
Jul 29, 8:08 PM MDTFlash Flood WarningPUBProwers2 hr
Jul 29, 8:08 PM MDTSevere Thunderstorm WarningPUBProwers2 hr
Jul 29, 8:15 PM MDTFlash Flood WarningPUBBent2 hr

Nearby

Flash Flood Warnings in Colorado, 1997Every flash flood warning in 1997

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.