Alert archive / Colorado / Flash Flood Warnings in 2017
Flash Flood Warning 36, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 28, 2017, 4:50 PM MDT for El Paso County, Colorado. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 28, 2017, 4:50 PM MDT (22:50 UTC)
- Expired
- Jul 28, 2017, 7:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
County El Paso County, CO
The radar
The Pueblo radar (KPUX), 67 km from the middle of the area, began a volume at 22:50 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 7:50 PM MDT | HEAVY RAIN 1.71 | 6 Ssw Calhan, CO | RAIN TOTAL THIS AFTERNOON/EVENING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.8 hours before the alert went out and 130 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2266 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
242 WGUS55 KPUB 282250 FFWPUB COC041-290145- /O.NEW.KPUB.FF.W.0036.170728T2250Z-170729T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Pueblo CO 450 PM MDT FRI JUL 28 2017 The National Weather Service in Pueblo has issued a * Flash Flood Warning for... Northeastern El Paso County in east central Colorado... * Until 745 PM MDT * At 449 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Calhan and Peyton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && LAT...LON 3912 10421 3895 10420 3895 10448 3912 10449 $$ mw
3 follow-up statements
954 WGUS75 KPUB 282342 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 542 PM MDT FRI JUL 28 2017 COC041-290145- /O.CON.KPUB.FF.W.0036.000000T0000Z-170729T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ El Paso CO- 542 PM MDT FRI JUL 28 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM MDT FOR NORTHEASTERN EL PASO COUNTY... At 537 PM MDT, Doppler radar indicated thunderstorms producing heavy rain have moved south and east of the warned area. National Weather Service doppler radar is indicating 1 to 3 inches of rain has already fallen, with flash flooding expected across the warned area. Drivers on Highway 24, between Peyton and Calhan, are urged to slow down and use caution, as standing water is likely on the roadways. Some locations that will experience flooding include... Calhan and Peyton. This includes the following streams and drainages...Big Sandy Creek...Black Squirrel Creek...Horse Creek...Big Springs Creek... Antelope Creek...North Fork Horse Creek...Little Horse Creek...East Branch Brackett Creek and Brackett Creek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. Please report flooding to your local law enforcement agency when you can do so safely. && LAT...LON 3912 10421 3895 10420 3895 10448 3912 10449 $$ mw
168 WGUS75 KPUB 290043 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 643 PM MDT FRI JUL 28 2017 COC041-290145- /O.CON.KPUB.FF.W.0036.000000T0000Z-170729T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ El Paso CO- 643 PM MDT FRI JUL 28 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM MDT FOR NORTHEASTERN EL PASO COUNTY... At 637 PM MDT, Doppler radar indicated scattered light rain showers across the warned area. However, radar is indicating 1 to 3 inches of rain has fallen across the area over the past 2 hours, with flash flooding expected to continue across the warned area. Some locations that will experience flooding include... Calhan and Peyton. This includes the following streams and drainages...Big Sandy Creek...Black Squirrel Creek...Horse Creek...Big Springs Creek... Antelope Creek...North Fork Horse Creek...Little Horse Creek...East Branch Brackett Creek and Brackett Creek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. Please report flooding to your local law enforcement agency when you can do so safely. && LAT...LON 3912 10421 3895 10420 3895 10448 3912 10449 $$ mw
097 WGUS75 KPUB 290136 FFSPUB Flash Flood Statement National Weather Service Pueblo CO 736 PM MDT FRI JUL 28 2017 COC041-290146- /O.EXP.KPUB.FF.W.0036.000000T0000Z-170729T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ El Paso CO- 736 PM MDT FRI JUL 28 2017 ...THE FLASH FLOOD WARNING FOR NORTHEASTERN EL PASO COUNTY WILL EXPIRE AT 745 PM MDT... The heavy rain has ended. Flooding is no longer expected to pose a threat. LAT...LON 3912 10421 3895 10420 3895 10448 3912 10449 $$ mw
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 9:38 PM MDT | Areal Flood Advisory | PUB | Fremont | 67 min |
| Jul 28, 1:10 PM MDT | Special Weather Statement | PUB | Fremont | 35 min |
| Jul 28, 2:34 PM MDT | Special Weather Statement | PUB | Fremont | 41 min |
| Jul 28, 3:20 PM MDT | Areal Flood Advisory | PUB | Custer, Fremont, Saguache | 115 min |
| Jul 28, 3:28 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Saguache | 3 hr |
| Jul 28, 4:22 PM MDT | Areal Flood Advisory | PUB | El Paso | 113 min |
| Jul 28, 5:01 PM MDT | Special Weather Statement | PUB | Las Animas | 29 min |
| Jul 28, 5:14 PM MDT | Special Weather Statement | PUB | El Paso | 31 min |
| Jul 28, 5:19 PM MDT | Areal Flood Advisory | PUB | Custer, Pueblo | 3 hr |
| Jul 28, 5:39 PM MDT | Areal Flood Advisory | PUB | Fremont, Pueblo | 3 hr |
| Jul 28, 5:54 PM MDT | Special Weather Statement | PUB | El Paso | 36 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.