Alert archive / Colorado / Flash Flood Warnings in 2007

Flash Flood Warning 32, NWS Pueblo, CO

August 16, 2007Chaffee County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 16, 2007, 5:08 PM MDT for Chaffee County, Colorado. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 16, 2007, 5:08 PM MDT (23:08 UTC)
Expired
Aug 16, 2007, 8:15 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Whole counties

County Chaffee County, CO

The radar

The Pueblo radar (KPUX), 178 km from the middle of the area, began a volume at 23:08 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.

What was reported inside it

TimeReportWhereRemark
Aug 16, 5:32 PM MDTFLASH FLOOD1 N Poncha Pass, CO1 FOOT OF WATER FLOWING OVER BACK ROADS AT PONCHA PASS. A FEW INCHES OF WATER FLOWING OVER HIGHWAY 285 AT PONCHA PASS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 11.1 hours before the alert went out and 204 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, Grand Junction, CO at 12:00Z on 2007-08-16Temperature 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, Grand Junction, CO at 12:00Z on 2007-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
2191 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
-1 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 162312
FFWPUB
COC015-170215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
508 PM MDT THU AUG 16 2007

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CHAFFEE COUNTY IN CENTRAL COLORADO...

* UNTIL 815 PM MDT...

* AT 504 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A STORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...THE      
  CHALK AND BROWNS CREEK BASINS...IN THE SAWATCH MOUNTAINS NEAR
  MOUNT PRINCETON...AND THE TOWN OF NATHROP.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF 1 TO 2 INCHES COULD FALL 
ACROSS THE WARNED AREA IN ABOUT AN HOUR.  GAGE REPORTS INDICATE .50
INCHES HAD ALREADY FALLEN AS OF 5 PM MDT.

THIS AMOUNT OF RAIN WILL LIKELY LEAD TO LOCALIZED FLASH FLOODING OVER
PORTIONS OF SOUTHERN CHAFFEE COUNTY.

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 3858 10634 3859 10600 3874 10604 3875 10625
      3872 10642

$$
3 follow-up statements
000 
WGUS75 KPUB 162355
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
547 PM MDT THU AUG 16 2007

COC015-170215-
CHAFFEE CO-
547 PM MDT THU AUG 16 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR
SOUTHERN CHAFFEE COUNTY...

AT 532 PM MDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A FOOT OF 
WATER FLOWING OVER BACK ROADS AT PONCHA PASS.  A FEW INCHES OF WATER 
WAS FLOWING OVER HIGHWAY 285 AT PONCHA PASS.  A WEATHER SPOTTER
6 MILES SOUTHWEST OF NATHROP REPORTED 1 INCH OF RAINFALL AND
WATER FLOWING OVER THE ROAD AT 3 MILE CREEK 6 MILES SOUTHWEST OF 
NATHROP.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
NATHROP...PONCHA PASS AND SALIDA.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF 1 TO 2 INCHES HAVE 
OCCURRED OVER PORTIONS OF THE WARNED AREA.  ADDITIONAL RAINFALL UP 
TO 1 INCH IS POSSIBLE.

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 3844 10622 3848 10600 3860 10588 3872 10597
      3875 10625 3872 10642

$$
000 
WGUS75 KPUB 170056
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
650 PM MDT THU AUG 16 2007

COC015-170215-
CHAFFEE CO-
650 PM MDT THU AUG 16 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR
SOUTHERN CHAFFEE COUNTY...

AT 650 PM MDT...PUEBLO DOPPLER RADAR INDICATED LIGHT TO MODERATE
RAINFALL CONTINUED OVER SOUTHERN CHAFFEE COUNTY.  1 TO 2 INCHES
OF RAIN FELL OVER PORTIONS OF SOUTHERN CHAFFEE COUNTY BETWEEN
5 AND 650 PM MDT.

AT 532 PM MDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A FOOT OF 
WATER FLOWING OVER BACK ROADS AT PONCHA PASS.  A FEW INCHES OF WATER 
WAS FLOWING OVER HIGHWAY 285 AT PONCHA PASS.  NEAR THE SAME TIME...A 
WEATHER SPOTTER 6 MILES SOUTHWEST OF NATHROP REPORTED 1 INCH OF 
RAINFALL AND WATER FLOWING OVER THE ROAD AT 3 MILE CREEK...6 MILES 
SOUTHWEST OF NATHROP.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
  SALIDA.
  PONCHA SPRINGS.

ADDITIONAL RAINFALL UP TO .25 INCHES IS POSSIBLE OVER THE WARNING
AREA THROUGH 900 PM.  THIS AMOUNT OF RAIN...ALONG WITH THE RAIN
THAT ALREADY FELL...WILL CONTINUE THE THREAT OF FLASH FLOODING.

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 3844 10622 3848 10600 3860 10588 3872 10597
      3875 10625 3872 10642

$$
000 
WGUS75 KPUB 170223
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
819 PM MDT THU AUG 16 2007

COC015-170229-
CHAFFEE CO-
819 PM MDT THU AUG 16 2007

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHERN CHAFFEE COUNTY...

LIGHT RAIN CONTINUES ACROSS MUCH OF SOUTHERN CHAFFEE COUNTY THURSDAY 
EVENING.  HOWEVER...SINCE HEAVY RAINFALL ENDED AROUND 700 PM MDT...
FLASH FLOODING IS NO LONGER ANTICIPATED.

LAT...LON 3844 10622 3848 10600 3860 10588 3872 10597
      3875 10625 3872 10642

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 6:14 PM MDTSevere Thunderstorm WarningPUBEl Paso, Pueblo46 min
Aug 15, 7:11 PM MDTSevere Thunderstorm WarningPUBKiowa64 min
Aug 15, 8:06 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa33 min
Aug 15, 9:06 PM MDTSevere Thunderstorm WarningPUBBent, Otero54 min
Aug 15, 9:57 PM MDTSevere Thunderstorm WarningPUBBent63 min
Aug 16, 1:47 PM MDTSevere Thunderstorm WarningPUBCuster38 min
Aug 16, 2:17 PM MDTSevere Thunderstorm WarningPUBConejos24 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.