Alert archive / Colorado / Flash Flood Watches in 2021
Flash Flood Watch 4, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood watch at May 31, 2021, 3:55 AM MDT for 9 counties in Colorado. It took effect at May 31, 2021, 12:00 PM MDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 31, 2021, 3:55 AM MDT (09:55 UTC)
- In effect from
- May 31, 2021, 12:00 PM MDT
- Expired
- May 31, 2021, 7:45 PM MDT
- In force
- 8 hr
- Issued by
- NWS Pueblo, CO
- Flood severity
- None
Counties Alamosa County, CO, Chaffee County, CO, Costilla County, CO, Custer County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Pueblo County, CO, Saguache County, CO
The radar
The Pueblo radar (KPUX), 116 km from the middle of the area, began a volume at 09:55 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, 9.9 hours before the alert went out and 282 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
- 8 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 558 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
195 WGUS65 KPUB 310955 FFAPUB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Pueblo CO 355 AM MDT Mon May 31 2021 ...Flash Flooding possible on burn scars in the southeast mountains this afternoon and evening... .A weather system will interact with increasing moisture across the mountains to bring scattered to widespread showers and thunderstorms. Some of these storms could be strong producing locally heavy rainfall capable of causing flash flooding on area burn scars. COZ072>075-077>080-087-311800- /O.NEW.KPUB.FF.A.0004.210531T1800Z-210601T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet- Northern Sangre de Cristo Mountains Above 11000 Feet- Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet- Southern Sangre de Cristo Mountains Above 11000 Feet- Western/Central Fremont County Below 8500 Feet- Wet Mountain Valley Below 8500 Feet- Wet Mountains between 6300 and 10000 Feet- Wet Mountains Above 10000 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet- Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, Cuchara, Stonewall, Weston, Spanish Peaks, Coaldale, Cotopaxi, Hillside, Howard, Swissvale, Texas Creek, Silver Cliff, Westcliffe, Rye, and Walsenburg 355 AM MDT Mon May 31 2021 ...FLASH FLOOD WATCH IN EFFECT FROM NOON MDT TODAY THROUGH THIS EVENING... The National Weather Service in Pueblo has issued a * Flash Flood Watch for portions of central Colorado and southeast Colorado, including the following areas, in central Colorado, Fremont County. In southeast Colorado, Huerfano County, Northern the Sangre de Cristo and Wet Mountains, and Wet Mountain Valley. * From noon MDT today through this evening * Strong thunderstorms capable of producing heavy rainfall will be possible across the mountains this afternoon and evening which could cause flash flooding of burn scars, and for areas which have received recent heavy rainfall. * High flows off burn scars can cut roadways and cause debris flows and mud slides. Do not drive through fast flowing water. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
2 follow-up statements
883 WGUS65 KPUB 311728 FFAPUB Flood Watch National Weather Service Pueblo CO 1128 AM MDT Mon May 31 2021 ...Flash Flooding possible on burn scars in the southeast mountains this afternoon and evening... .A weather system will interact with increasing moisture across the mountains to bring scattered to widespread showers and thunderstorms. Some of these storms could be strong, producing locally heavy rainfall and flash flooding on area burn scars. COZ072>075-077>080-087-010130- /O.CON.KPUB.FF.A.0004.210531T1800Z-210601T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet- Northern Sangre de Cristo Mountains Above 11000 Feet- Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet- Southern Sangre de Cristo Mountains Above 11000 Feet- Western/Central Fremont County Below 8500 Feet- Wet Mountain Valley Below 8500 Feet- Wet Mountains between 6300 and 10000 Feet- Wet Mountains Above 10000 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet- Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, Cuchara, Stonewall, Weston, Spanish Peaks, Coaldale, Cotopaxi, Hillside, Howard, Swissvale, Texas Creek, Silver Cliff, Westcliffe, Rye, and Walsenburg 1128 AM MDT Mon May 31 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM MDT THIS EVENING... The Flash Flood Watch continues for * Portions of central Colorado and southeast Colorado, including the following areas, in central Colorado, Fremont County. In southeast Colorado, Huerfano County, Northern Sangre de Cristo Mountains, Southern Sangre de Cristo Mountains, Wet Mountain Valley, and Wet Mountains. * Until 10 PM MDT this evening * Strong thunderstorms capable of producing heavy rainfall will be possible across the mountains this afternoon and evening which could cause flash flooding of burn scars, and for areas which have received recent heavy rainfall. * High flows off burn scars can cut roadways and cause debris flows and mud slides. Do not drive through fast flowing water. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
573 WGUS65 KPUB 010145 FFAPUB Flood Watch National Weather Service Pueblo CO 745 PM MDT Mon May 31 2021 ...Flash Flood Watch for the mountains has been canceled... .Heavy precipitation has ended over the mountains for tonight. COZ072>075-077>080-087-010245- /O.CAN.KPUB.FF.A.0004.000000T0000Z-210601T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet- Northern Sangre de Cristo Mountains Above 11000 Feet- Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet- Southern Sangre de Cristo Mountains Above 11000 Feet- Western/Central Fremont County Below 8500 Feet- Wet Mountain Valley Below 8500 Feet- Wet Mountains between 6300 and 10000 Feet- Wet Mountains Above 10000 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet- Including the cities of La Veta Pass, Poncha Pass, Blanca Peak, Cuchara, Stonewall, Weston, Spanish Peaks, Coaldale, Cotopaxi, Hillside, Howard, Swissvale, Texas Creek, Silver Cliff, Westcliffe, Rye, and Walsenburg 745 PM MDT Mon May 31 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Colorado and southeast Colorado has been cancelled. $$
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 6:03 PM MDT | Special Weather Statement | PUB | Otero | 42 min |
| May 30, 6:54 PM MDT | Special Weather Statement | PUB | Bent, Kiowa | 36 min |
| May 31, 1:11 PM MDT | Special Weather Statement | PUB | Conejos | 49 min |
| May 31, 1:25 PM MDT | Special Weather Statement | PUB | Costilla | 50 min |
| May 31, 2:00 PM MDT | Special Weather Statement | PUB | Conejos | 45 min |
Nearby
Flash Flood Watches in Colorado, 2021Every flash flood watch in 2021
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.