Alert archive / Colorado / Flash Flood Warnings in 2007

Flash Flood Warning 35, NWS Pueblo, CO

August 22, 2007Prowers County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 22, 2007, 7:00 AM MDT for Prowers County, Colorado. It was in force for 3 hr. 3 reports 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 22, 2007, 7:00 AM MDT (13:00 UTC)
Expired
Aug 22, 2007, 10:00 AM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Whole counties

County Prowers County, CO

The radar

The Pueblo radar (KPUX), 166 km from the middle of the area, began a volume at 13:03 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 22, 8:55 AM MDTFLASH FLOODGranada, COWATER GREATER THAN A HALF FOOT DEEP FLOWING OVER ROADS IN GRANADA. STANDING WATER 1 TO 1.5 FEET DEEP.
Aug 22, 9:00 AM MDTHEAVY RAIN 2.95Granada, CO
Aug 22, 9:05 AM MDTHEAVY RAIN 4.5Granada, CO4.5 INCH RAINFALL ESTIMATE ON HIGHWAY 196 N OF GRANADA. OTHER ESTIMATES OF 2-3 INCHES IN THE GRANADA AREA.

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

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 1.0 hours before the alert went out and 220 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, Dodge City, at 12:00Z on 2007-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1158 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, Dodge City, at 12:00Z on 2007-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1158 J/kg
Mixed-layer CIN
-314 J/kg
Mixed-layer LCL
1147 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS55 KPUB 221303
FFWPUB
COC099-221600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
700 AM MDT WED AUG 22 2007

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL PROWERS COUNTY IN SOUTHEAST COLORADO...

* UNTIL 1000 AM MDT...

* AT 654 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  VERY HEAVY RAIN FROM STORMS OVER EASTERN PROWERS COUNTY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
  HOLLY.
  HARTMAN.
  GRANADA.

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF OVER 5 INCHES HAVE 
OCCURRED NEAR HOLLY...WITH NEARLY 3 INCHES OF RAIN IN GRANADA.  
ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS EXPECTED IN THAT AREA.

AT 655 AM MDT...THE THUNDERSTORMS PRODUCING THE FLASH FLOODING WERE 
LOCATED ALONG HIGHWAY 50 FROM NEAR GRANADA TO NEAR HOLLY. THESE 
STORMS WERE MOVING SLOWLY TO THE NORTH AT 5 MPH. PERSONS TRAVELING 
ALONG HIGHWAY 50 BETWEEN HOLLY AND GRANADA...AND ALONG HIGHWAY 89 
SOUTH OF HOLLY SHOULD BE ALERT TO THE POSSIBILITY OF WATER COVERING 
THE ROAD AND FLASH FLOODING OF NORMALLY DRY CREEKS AND ARROYOS. 
FLOODING ALONG TWO BUTTE CREEK SOUTH OF HOLLY IS LIKELY. 

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 3801 10234 3819 10232 3818 10222 3816 10206
      3794 10205 3783 10224
TIME...MOT...LOC 1300Z 180DEG 0KT 3802 10214

$$
1 follow-up statement
000 
WGUS75 KPUB 221626
FFSPUB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1025 AM MDT WED AUG 22 2007

COC099-221645-
PROWERS CO-
1025 AM MDT WED AUG 22 2007

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT UNTIL 1000 AM MDT FOR 
EAST CENTRAL PROWERS COUNTY HAS EXPIRED...

AT 1025 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT HEAVY RAINFALL HAD MOVED OUT OF EAST CENTRAL PROWERS COUNTY.  
REPORTS FROM LOCAL LAW ENFORCEMENT INDICATE NO FLOODING PROBLEMS.  
CONSEQUENTLY...THE FLASH FLOOD WARNING FOR EAST CENTRAL PROWERS 
COUNTY HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 3806 10232 3817 10230 3819 10215 3818 10204
      3792 10205 3786 10224 3797 10230
TIME...MOT...LOC 1224Z 180DEG 0KT 3794 10218

$$

LW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 3:55 AM MDTFlash Flood WarningPUBProwers3 hr
Aug 22, 2:22 PM MDTSevere Thunderstorm WarningPUBBent53 min
Aug 22, 3:22 PM MDTSevere Thunderstorm WarningPUBLas Animas53 min
Aug 22, 3:31 PM MDTTornado WarningPUBBent17 min
Aug 22, 4:33 PM MDTSevere Thunderstorm WarningPUBBent31 min
Aug 22, 4:50 PM MDTSevere Thunderstorm WarningPUBEl Paso55 min
Aug 22, 5:39 PM MDTSevere Thunderstorm WarningPUBEl Paso96 min
Aug 22, 5:53 PM MDTSevere Thunderstorm WarningPUBEl Paso97 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.