Alert archive / Colorado / Flash Flood Warnings in 2007

Flash Flood Warning 34, NWS Pueblo, CO

August 22, 2007Prowers County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 22, 2007, 3:55 AM MDT for Prowers County, Colorado. It took effect at Aug 22, 2007, 4:01 AM MDT. It was in force for 3 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
Aug 22, 2007, 3:55 AM MDT (09:55 UTC)
In effect from
Aug 22, 2007, 4:01 AM MDT
Expired
Aug 22, 2007, 7:00 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 09:57 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

Dodge City, (KDDC), launched 00:00Z, 9.9 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 00:00Z on 2007-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2716 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 00:00Z on 2007-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
2716 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1778 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KPUB 221001
FFWPUB
COC099-221300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
355 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 700 AM MDT...

* AT 352 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  FLASH FLOODING FROM A STORM OVER HOLLY.

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

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF 4 INCHES HAVE OCCURRED 
NEAR AND JUST SOUTH OF HOLLY ALONG TWO BUTTES CREEK...AND ADDITIONAL 
RAINFALL OF 1 TO 2 INCHES IS EXPECTED IN THAT AREA. 

AT 350 AM MDT...THE THUNDERSTORMS PRODUCING THE FLASH FLOODING WERE 
LOCATED ALONG HIGHWAY 50 FROM GRANADA TO HOLLY...AND WERE MOVING 
SLOWLY NORTHEAST 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 .

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 3806 10232 3817 10230 3819 10215 3818 10204
      3792 10205 3786 10224 3797 10230
TIME...MOT...LOC 0955Z 180DEG 0KT 3794 10218

$$
3 follow-up statements
000 
WGUS75 KPUB 221033
FFSPUB

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

COC099-221300-
PROWERS CO-
430 AM MDT WED AUG 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM MDT FOR EAST
CENTRAL PROWERS COUNTY...

AT 426 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A STORM PRODUCING VERY HEAVY RAIN OVER EAST CENTRAL PROWERS 
COUNTY...CENTERED NEAR HOLLY.

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

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF OVER 4 INCHES HAVE 
OCCURRED NEAR AND JUST SOUTH OF HOLLY...AND ADDITIONAL RAINFALL OF 1 
TO 2 INCHES IS EXPECTED IN THAT AREA.

AT 430 AM MDT...THE THUNDERSTORMS PRODUCING THE FLASH FLOODING WERE 
LOCATED ALONG HIGHWAY 50 FROM GRANADA TO HOLLY...AND WERE MOVING 
SLOWLY NORTHEAST 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...INCLUDING TWO 
BUTTE CREEK.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
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 3806 10232 3817 10230 3819 10215 3818 10204
      3792 10205 3786 10224 3797 10230
TIME...MOT...LOC 1030Z 180DEG 0KT 3794 10218

$$
000 
WGUS75 KPUB 221139
FFSPUB

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

COC099-221300-
PROWERS CO-
531 AM MDT WED AUG 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM MDT FOR EAST
CENTRAL PROWERS COUNTY...

AT 525 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A STORM PRODUCING VERY HEAVY RAIN OVER EAST CENTRAL PROWERS 
COUNTY FROM GRANADA TO HOLLY. 

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

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF NEARLY 5 INCHES HAVE 
OCCURRED NEAR AND JUST SOUTH OF HOLLY...ADDITIONAL RAINFALL OF UP TO 
1 INCH IS EXPECTED IN THAT AREA.

AT 540 AM MDT...THE THUNDERSTORMS PRODUCING THE FLASH FLOODING WERE 
LOCATED JUST NORTH OF HIGHWAY 50 NEAR GRANADA AND JUST SOUTH OF 
HOLLY ALONG HIGHWAY 89. THESE STORMS WERE NEARLY STATIONARY. 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 3806 10232 3817 10230 3819 10215 3818 10204
      3792 10205 3786 10224 3797 10230
TIME...MOT...LOC 1131Z 180DEG 0KT 3794 10218

$$
000 
WGUS75 KPUB 221228
FFSPUB

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

COC099-221300-
PROWERS CO-
624 AM MDT WED AUG 22 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM MDT FOR EAST
CENTRAL PROWERS COUNTY...

AT 620 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A STORM PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA.

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

DOPPLER RADAR ESTIMATES THAT RAIN TOTALS OF UP TO 5 INCHES HAVE  
OCCURRED NEAR HOLLY AND ADDITIONAL RAINFALL OF UP TO AN INCH IS  
EXPECTED IN THAT AREA.

AT 540 AM MDT...THE THUNDERSTORMS PRODUCING THE FLASH FLOODING WERE 
LOCATED JUST NORTH OF HIGHWAY 50 NEAR GRANADA AND 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 3806 10232 3817 10230 3819 10215 3818 10204
      3792 10205 3786 10224 3797 10230
TIME...MOT...LOC 1224Z 180DEG 0KT 3794 10218

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 7:00 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.