Alert archive / Colorado / Flash Flood Warnings in 2018
Flash Flood Warning 20, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 24, 2018, 2:09 PM MDT for Costilla County, Huerfano 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 24, 2018, 2:09 PM MDT (20:09 UTC)
- Expired
- Jul 24, 2018, 5:15 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Costilla County, CO, Huerfano County, CO
The radar
The Pueblo radar (KPUX), 125 km from the middle of the area, began a volume at 20:12 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 (KDEN), launched 12:00Z, 8.2 hours before the alert went out and 298 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.
- Mixed-layer CAPE
- 458 J/kg
- Mixed-layer CIN
- -226 J/kg
- Mixed-layer LCL
- 935 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
977 WGUS55 KPUB 242009 FFWPUB COC023-055-242315- /O.NEW.KPUB.FF.W.0020.180724T2009Z-180724T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Pueblo CO 209 PM MDT TUE JUL 24 2018 The National Weather Service in Pueblo has issued a * Flash Flood Warning for... West central Huerfano County in southeastern Colorado... Northeastern Costilla County in south central Colorado... * Until 515 PM MDT. * At 207 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. * Flash flooding will remain over mainly rural areas of west central Huerfano and northeastern Costilla Counties. Excessive rainfall over the burn scar will result in debris flow moving through the Spring Creek, Pass Creek and West Oak Creek on the northern portion of the Spring Burn Scar, north of US 160. The debris flow can consist of rock, mud, vegetation and other loose materials. Estimated rainfall totals are between 0.3 and 0.6 inches. LAT...LON 3769 10515 3763 10514 3762 10524 3769 10525 $$ PGW
3 follow-up statements
232 WGUS75 KPUB 242100 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 300 PM MDT TUE JUL 24 2018 COC023-055-242315- /O.CON.KPUB.FF.W.0020.000000T0000Z-180724T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Huerfano CO-Costilla CO- 300 PM MDT TUE JUL 24 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM MDT FOR WEST CENTRAL HUERFANO AND NORTHEASTERN COSTILLA COUNTIES... At 257 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Spring Creek, Pass Creek, and South Oak Creek drainages on the Spring Burn Scar, north of US160. The debris flow can consist of rock, mud, vegetation and other loose materials. Flash flooding will remain over mainly rural areas of west central Huerfano and northeastern Costilla Counties. One thunderstorm in the warning has weakened, but another thunderstorm is northwest of the region, moving to the southeast. This second storm could be within the warning region within the next 30 minutes. LAT...LON 3769 10515 3763 10514 3762 10524 3769 10525 $$ PGW
229 WGUS75 KPUB 242225 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 425 PM MDT TUE JUL 24 2018 COC023-055-242315- /O.CON.KPUB.FF.W.0020.000000T0000Z-180724T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Huerfano CO-Costilla CO- 425 PM MDT TUE JUL 24 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM MDT FOR WEST CENTRAL HUERFANO AND NORTHEASTERN COSTILLA COUNTIES... At 419 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area on the northern portions of the Spring Burn scar. Up to one and a half inches of rain has already fallen. Flash flooding is expected to continue. Another storm may move into this area later this evening and additional Flash Flood Warnings may become necessary. Excessive rainfall over the burn scar will result in debris flow moving through the Pass Creek, Spring Branch, and South Oak Creek drainages. The debris flow can consist of rock, mud, vegetation and other loose materials. Flash flooding will remain over mainly rural areas of west central Huerfano and northeastern Costilla Counties over and near the Spring Burn Scar. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move away from recently burned areas. Life-threatening flooding of creeks, roads and normally dry arroyos is likely. The heavy rains will likely trigger rockslides, mudslides and debris flows in steep terrain, especially in and around these areas. && LAT...LON 3769 10515 3763 10514 3762 10524 3769 10525 $$ KT
002 WGUS75 KPUB 242316 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 516 PM MDT TUE JUL 24 2018 COC023-055-242324- /O.EXP.KPUB.FF.W.0020.000000T0000Z-180724T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Huerfano CO-Costilla CO- 516 PM MDT TUE JUL 24 2018 ...THE FLASH FLOOD WARNING FOR WEST CENTRAL HUERFANO AND NORTHEASTERN COSTILLA COUNTIES WILL EXPIRE AT 515 PM MDT... The heavy rain has ended. Flooding is no longer expected to pose an threat on the Spring burn scar. However, additional thunderstorm development is possible this evening which may result in additional flash flooding should they impact the Spring burn scar. Please continue to heed any remaining road closures and monitor the weather closely for any additional flash flood warnings through tonight. LAT...LON 3769 10515 3763 10514 3762 10524 3769 10525 $$ KT
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 6:11 PM MDT | Flash Flood Warning | PUB | Pueblo | 110 min |
| Jul 23, 6:21 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Pueblo | 114 min |
| Jul 23, 6:28 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas, Otero | 46 min |
| Jul 23, 6:30 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont, Huerfano, Pueblo | 45 min |
| Jul 23, 6:56 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Bent, Las Animas, Otero | 49 min |
| Jul 23, 7:31 PM MDT | Areal Flood Advisory | PUB | Bent, Crowley, Las Animas, Otero | 3 hr |
| Jul 23, 7:38 PM MDT | Flash Flood Warning | PUB | Bent, Crowley, Otero | 3 hr |
| Jul 23, 7:52 PM MDT | Special Weather Statement | PUB | Bent | 23 min |
| Jul 23, 8:14 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Pueblo | 61 min |
| Jul 23, 8:34 PM MDT | Areal Flood Advisory | PUB | Bent, Kiowa, Prowers | 3 hr |
| Jul 23, 8:53 PM MDT | Flash Flood Warning | PUB | Bent, Prowers | 3 hr |
| Jul 23, 9:12 PM MDT | Flash Flood Warning | PUB | Kiowa, Prowers | 3 hr |
| Jul 23, 9:28 PM MDT | Special Weather Statement | PUB | Prowers | 47 min |
| Jul 23, 10:02 PM MDT | Flash Flood Warning | PUB | Fremont, Pueblo | 104 min |
| Jul 23, 11:38 PM MDT | Areal Flood Advisory | PUB | Custer, Fremont, Pueblo | 2 hr |
| Jul 24, 9:44 AM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 4 more | 12 hr |
| Jul 24, 2:25 PM MDT | Special Weather Statement | PUB | Conejos | 35 min |
| Jul 24, 2:27 PM MDT | Special Weather Statement | PUB | Chaffee | 48 min |
| Jul 24, 2:32 PM MDT | Special Weather Statement | PUB | El Paso | 43 min |
| Jul 24, 2:35 PM MDT | Special Weather Statement | PUB | Costilla | 40 min |
| Jul 24, 2:40 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 35 min |
| Jul 24, 2:44 PM MDT | Special Weather Statement | PUB | Fremont | 46 min |
| Jul 24, 2:46 PM MDT | Special Weather Statement | PUB | Custer | 44 min |
| Jul 24, 2:54 PM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Jul 24, 3:07 PM MDT | Flash Flood Warning | PUB | El Paso | 90 min |
| Jul 24, 3:07 PM MDT | Severe Thunderstorm Warning | PUB | Fremont | 23 min |
| Jul 24, 3:14 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 31 min |
| Jul 24, 3:15 PM MDT | Special Weather Statement | PUB | Teller | 45 min |
| Jul 24, 3:20 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Huerfano | 16 min |
| Jul 24, 3:25 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Las Animas | 50 min |
| Jul 24, 3:25 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 35 min |
| Jul 24, 3:28 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Saguache | 2 hr |
| Jul 24, 3:41 PM MDT | Special Weather Statement | PUB | El Paso | 49 min |
| Jul 24, 3:46 PM MDT | Special Weather Statement | PUB | Custer | 44 min |
| Jul 24, 3:49 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 51 min |
| Jul 24, 4:07 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 26 min |
| Jul 24, 4:14 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont, Huerfano, Pueblo, Saguache | 31 min |
| Jul 24, 4:46 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Huerfano | 44 min |
| Jul 24, 4:52 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 38 min |
| Jul 24, 4:53 PM MDT | Special Weather Statement | PUB | Huerfano | 37 min |
| Jul 24, 4:57 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Las Animas | 22 min |
| Jul 24, 5:06 PM MDT | Flash Flood Warning | PUB | Teller | 2 hr |
| Jul 24, 5:30 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 105 min |
| Jul 24, 5:49 PM MDT | Special Weather Statement | PUB | Huerfano | 41 min |
| Jul 24, 5:56 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
Nearby
Flash Flood Warnings in Colorado, 2018Every flash flood warning in 2018
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.