Alert archive / Colorado / Flash Flood Warnings in 2017

Flash Flood Warning 34, NWS Pueblo, CO

July 27, 2017Custer County, Fremont County, Colorado

NWS Pueblo, CO issued this flash flood warning at Jul 27, 2017, 5:55 PM MDT for Custer County, Fremont County, Colorado. 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 outline as issued.

The facts

Issued
Jul 27, 2017, 5:55 PM MDT (23:55 UTC)
Expired
Jul 27, 2017, 9:00 PM MDT
In force
3 hr
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Flood severity
None

Counties Custer County, CO, Fremont County, CO

The radar

The Pueblo radar (KPUX), 137 km from the middle of the area, began a volume at 23:58 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

Grand Junction, CO (KGJT), launched 12:00Z, 11.9 hours before the alert went out and 255 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 2017-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 140 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, Grand Junction, CO at 12:00Z on 2017-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.19395878Sfc1 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
140 J/kg
Mixed-layer CIN
-180 J/kg
Mixed-layer LCL
1691 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

075 
WGUS55 KPUB 272355
FFWPUB
COC027-043-280300-
/O.NEW.KPUB.FF.W.0034.170727T2355Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
555 PM MDT THU JUL 27 2017

The National Weather Service in Pueblo has issued a

* Flash Flood Warning for...
  Southwestern Fremont County in central Colorado...
  Northwestern Custer County in southeastern Colorado...

* Until 900 PM MDT

* At 552 PM MDT, Doppler radar indicated thunderstorms producing 
  heavy rain over the Hayden Pass burn scar. The heaviest rain is 
  falling over the western part of the burn scar and will affect the 
  Hayden Creek drainage. Radar indicated between 0.3 inches and 0.4 
  inches has fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Coaldale.

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish
5 follow-up statements
934 
WGUS75 KPUB 280007
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
607 PM MDT THU JUL 27 2017

COC027-043-280300-
/O.CON.KPUB.FF.W.0034.000000T0000Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
607 PM MDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...

At 604 PM MDT, Doppler radar indicated the heaviest rain was 
continuing to affect the western face and the northern face of the 
burn scar. The Hayden Creek drainage has received the heaviest rain 
so far. Radar estimated 0.4 inches of rain has fallen over a large 
part of the Hayden creek drainage.

Some locations that will experience flooding include...
Coaldale.

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish
232 
WGUS75 KPUB 280038
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
638 PM MDT THU JUL 27 2017

COC027-043-280300-
/O.CON.KPUB.FF.W.0034.000000T0000Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
638 PM MDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...

At 634 PM MDT, Doppler radar indicated light to moderate rain was 
falling on the Hayden Creek drainage area of the hayden Pass burn 
scar. Most of the Hayden Creek drainage received around 0.4 inches 
of rain with this event. Most of the burn scar outside of the Hayden 
Creek drainage received less than 0.1 inches of rain as of 634 pm.

Locations that will likely receive flash flooding will be along the 
hayden Creek drainage. 

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish
018 
WGUS75 KPUB 280048
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
648 PM MDT THU JUL 27 2017

COC027-043-280300-
/O.CON.KPUB.FF.W.0034.000000T0000Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
648 PM MDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...

At 645 PM MDT, Doppler radar indicated only light rain was falling 
over mainly the northwestern sections of the burn scar, and both the 
coverage of the rain and the intensity of the rain was decreasing. 
Rain is expected to end across the Hayden Burn scar shortly after 
7:15 pm.

High water is likely occurring across the Hayden Creek drainage due 
to the earlier heavy rain. 

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish
064 
WGUS75 KPUB 280119
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
719 PM MDT THU JUL 27 2017

COC027-043-280300-
/O.CON.KPUB.FF.W.0034.000000T0000Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
719 PM MDT THU JUL 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
SOUTHWESTERN FREMONT AND NORTHWESTERN CUSTER COUNTIES...

At 715 PM MDT, Doppler radar indicated only a few light showers were 
on the east end of the Hayden Pass burn scar. This activity was 
dropping southeast away from the burn scar. 

No additional heavy rain is anticipated across the burn scar this 
evening.

Heavier rain has fallen over the northwestern sections of the burn 
scar, and high water will be likely along the Hayden Creek drainage 
through 8 pm. 

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish
277 
WGUS75 KPUB 280207
FFSPUB

Flash Flood Statement
National Weather Service Pueblo CO
807 PM MDT THU JUL 27 2017

COC027-043-280214-
/O.CAN.KPUB.FF.W.0034.000000T0000Z-170728T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fremont CO-Custer CO-
807 PM MDT THU JUL 27 2017

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN FREMONT AND NORTHWESTERN
CUSTER COUNTIES IS CANCELLED...

Reports from Western Fremont Fire indicate no flash flooding 
occurred in the Hayden Burn scar region earlier this evening. Water 
ran high along Hayden creek, but remained within its banks.

No additional heavy rain is anticipated this evening over the Hayden 
burn scar region. 

LAT...LON 3834 10569 3824 10575 3831 10586 3838 10575

$$

Hodanish

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 6:15 PM MDTSpecial Weather StatementPUBBaca30 min
Jul 26, 6:35 PM MDTSpecial Weather StatementPUBCrowley25 min
Jul 26, 6:44 PM MDTSevere Thunderstorm WarningPUBCrowley, Otero, Pueblo31 min
Jul 26, 7:14 PM MDTSpecial Weather StatementPUBEl Paso31 min
Jul 26, 7:21 PM MDTSevere Thunderstorm WarningPUBCrowley, Otero18 min
Jul 26, 7:34 PM MDTSpecial Weather StatementPUBEl Paso41 min
Jul 26, 8:00 PM MDTAreal Flood AdvisoryPUBBent, Crowley, Otero2 hr
Jul 26, 8:34 PM MDTSpecial Weather StatementPUBBent26 min
Jul 26, 8:36 PM MDTSevere Thunderstorm WarningPUBBent, Las Animas, Otero39 min
Jul 26, 9:05 PM MDTAreal Flood AdvisoryPUBEl Paso3 hr
Jul 26, 9:10 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Las Animas, Otero35 min
Jul 26, 9:43 PM MDTFlash Flood WarningPUBTeller5 hr
Jul 26, 9:44 PM MDTSevere Thunderstorm WarningPUBBaca, Las Animas46 min
Jul 26, 10:46 PM MDTSpecial Weather StatementPUBBaca44 min
Jul 26, 11:39 PM MDTSpecial Weather StatementPUBBaca51 min
Jul 26, 11:56 PM MDTSpecial Weather StatementPUBBaca49 min
Jul 27, 12:57 AM MDTAreal Flood AdvisoryPUBBaca, Prowers3 hr
Jul 27, 1:33 AM MDTAreal Flood AdvisoryPUBBaca, Bent, Las Animas, Otero3 hr
Jul 27, 3:29 AM MDTAreal Flood AdvisoryPUBLas Animas, Otero, Pueblo2 hr
Jul 27, 4:26 AM MDTAreal Flood AdvisoryPUBBent, Las Animas, Otero64 min
Jul 27, 1:24 PM MDTSpecial Weather StatementPUBSaguache51 min
Jul 27, 3:08 PM MDTSpecial Weather StatementPUBSaguache37 min
Jul 27, 3:16 PM MDTSpecial Weather StatementPUBCostilla29 min
Jul 27, 4:12 PM MDTAreal Flood AdvisoryPUBTeller2 hr
Jul 27, 4:39 PM MDTSpecial Weather StatementPUBAlamosa36 min
Jul 27, 5:13 PM MDTAreal Flood AdvisoryPUBLas Animas2 hr
Jul 27, 5:26 PM MDTAreal Flood AdvisoryPUBHuerfano, Las Animas2 hr

Nearby

Flash Flood Warnings in Colorado, 2017Every flash flood warning in 2017

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.