Alert archive / Colorado / Flash Flood Warnings in 2020

Flash Flood Warning 59, NWS Pueblo, CO

August 5, 2020El Paso County, Teller County, Colorado

NWS Pueblo, CO issued this flash flood warning at Aug 5, 2020, 7:49 PM MDT for El Paso County, Teller County, Colorado. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 5, 2020, 7:49 PM MDT (01:49 UTC)
Expired
Aug 5, 2020, 10:06 PM MDT
In force
2 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties El Paso County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 79 km from the middle of the area, began a volume at 01:53 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, 1.8 hours before the alert went out and 183 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 2020-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 605 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, Denver, CO at 00:00Z on 2020-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
605 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
2212 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

659 
WGUS55 KPUB 060149
FFWPUB
COC041-119-060445-
/O.NEW.KPUB.FF.W.0059.200806T0149Z-200806T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
749 PM MDT Wed Aug 5 2020

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  East central Teller County in central Colorado...
  West central El Paso County in east central Colorado...

* Until 1045 PM MDT.

* At 746 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain just west of Manitou Springs. The rain is moving east 
  at 10 mph.  Up to one inch of rain has already fallen. Flash 
  flooding is ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Heavy rain producing 
           flash flooding.

  SOURCE...Radar indicated.

  IMPACT...Life threatening flash flooding of creeks and streams, 
           urban areas, highways, streets and underpasses.

* Some locations that will experience flooding include...
  Western Colorado Springs, Manitou Springs, Chipita Park and 
  Cascade.

This includes the following streams and drainages...  
Fountain Creek, Ruxton Creek, and French Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3889 10485 3885 10485 3880 10479 3882 10506
      3892 10503 3892 10498 3889 10494

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

KT
2 follow-up statements
248 
WGUS75 KPUB 060236
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
836 PM MDT Wed Aug 5 2020

COC041-119-060445-
/O.CON.KPUB.FF.W.0059.000000T0000Z-200806T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Teller CO-El Paso CO-
836 PM MDT Wed Aug 5 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM MDT FOR
EAST CENTRAL TELLER AND WEST CENTRAL EL PASO COUNTIES...

At 829 PM MDT, Doppler radar indicated thunderstorms producing heavy 
rain diminishing across the warned area. Pueblo doppler radar 
estimated up to one inch of additional rain has already fallen on 
saturated soils in an area from Cascade to Pikes Peak.  This same 
area received up to 2.5 inches of rain from thunderstorms earlier 
today. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Life threatening flash flooding. Heavy rain producing flash 
         flooding.

SOURCE...Radar indicated.

IMPACT...Life threatening flash flooding of creeks and streams, 
         urban areas, highways, streets and underpasses.

Some locations that will experience flooding include...
Western Colorado Springs, Manitou Springs, Chipita Park and Cascade.

This includes the following streams and drainages... North and South 
Forks of French Creek, French Creek, Ruxton Creek and Fountain Creek.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3889 10485 3885 10485 3880 10479 3882 10506
      3892 10503 3892 10498 3889 10494

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

KT
119 
WGUS75 KPUB 060406
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
1006 PM MDT Wed Aug 5 2020

COC041-119-060416-
/O.CAN.KPUB.FF.W.0059.000000T0000Z-200806T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Teller CO-El Paso CO-
1006 PM MDT Wed Aug 5 2020

...THE FLASH FLOOD WARNING FOR EAST CENTRAL TELLER AND WEST CENTRAL
EL PASO COUNTIES IS CANCELLED...

The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.

LAT...LON 3889 10485 3885 10485 3880 10479 3882 10506
      3892 10503 3892 10498 3889 10494

$$

KT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 6:06 PM MDTSevere Thunderstorm WarningPUBEl Paso25 min
Aug 5, 6:15 PM MDTSpecial Weather StatementPUBEl Paso, Teller45 min
Aug 5, 6:45 PM MDTSpecial Weather StatementPUBCuster45 min
Aug 5, 6:50 PM MDTSpecial Weather StatementPUBPueblo40 min
Aug 5, 6:58 PM MDTSpecial Weather StatementPUBTeller47 min
Aug 5, 7:05 PM MDTSpecial Weather StatementPUBTeller40 min
Aug 5, 7:13 PM MDTSevere Thunderstorm WarningPUBEl Paso, Teller32 min
Aug 5, 7:20 PM MDTSevere Thunderstorm WarningPUBCuster, Fremont, Pueblo25 min
Aug 5, 7:43 PM MDTSevere Thunderstorm WarningPUBPueblo18 min
Aug 5, 7:44 PM MDTSevere Thunderstorm WarningPUBEl Paso31 min
Aug 5, 7:48 PM MDTSpecial Weather StatementPUBEl Paso42 min
Aug 5, 8:04 PM MDTSpecial Weather StatementPUBEl Paso26 min
Aug 6, 1:09 PM MDTSpecial Weather StatementPUBEl Paso36 min
Aug 6, 1:53 PM MDTSpecial Weather StatementPUBEl Paso37 min
Aug 6, 3:27 PM MDTSpecial Weather StatementPUBBaca33 min
Aug 6, 4:05 PM MDTSpecial Weather StatementPUBEl Paso25 min
Aug 6, 4:09 PM MDTSevere Thunderstorm WarningPUBEl Paso36 min
Aug 6, 4:11 PM MDTSpecial Weather StatementPUBBent49 min
Aug 6, 4:12 PM MDTSpecial Weather StatementPUBBaca48 min
Aug 6, 5:32 PM MDTSpecial Weather StatementPUBElbert28 min

Nearby

Flash Flood Warnings in Colorado, 2020Every flash flood warning in 2020

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.