Alert archive / Colorado / Flash Flood Watches in 2019

Flash Flood Watch 6, NWS Pueblo, CO

August 7, 201911 counties in Colorado

NWS Pueblo, CO issued this flash flood watch at Aug 7, 2019, 2:52 PM MDT for 11 counties in Colorado. It took effect at Aug 8, 2019, 12:00 PM MDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Aug 7, 2019, 2:52 PM MDT (20:52 UTC)
In effect from
Aug 8, 2019, 12:00 PM MDT
Expired
Aug 9, 2019, 2:00 AM MDT
In force
14 hr
Issued by
NWS Pueblo, CO
Flood severity
None

Counties Alamosa County, CO, Chaffee County, CO, Costilla County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Pueblo County, CO, Saguache County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 101 km from the middle of the area, began a volume at 20:54 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 12:00Z, 8.9 hours before the alert went out and 262 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 12:00Z on 2019-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2019-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2889 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this flash flood watch went out at Aug 7, 11:25 AM MDT, 3 hours 27 minutes earlier.

Area forecast discussion, Aug 7, 11:25 AM MDT, 3 hours 27 minutes before
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Hazardous weather outlook, Aug 7, 11:44 AM MDT, 3 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1144 AM MDT Wed Aug 7 2019

COZ058>089-093>099-081745-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
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-
Northwestern Fremont County Above 8500 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-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
1144 AM MDT Wed Aug 7 2019

This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.

.DAY ONE...Today and Tonight

Scattered to numerous showers and thunderstorms will develop
across the higher terrain this afternoon and evening, with storms
expected to slowly move east across the high valleys and adjacent
plains through the afternoon and evening hours. Isolated to scattered
storms can also be expected across the southeast Plains this afternoon
and evening. Locally heavy rainfall will be possible with storms today,
leading to the potential for flash flooding, especially for the
newer burn areas of the Spring, Junkins and Hayden Pass scars.
Other storm risks today will be cloud to ground lightning, gusty
outflow winds up to 50 mph and small hail up to 1/2 inch in
diameter. However, one or two storms over northern portions of the
southeast Plains may be marginally severe.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Widespread showers and thunderstorms are expected each afternoon
and evening from Thursday through Sunday. The main threats,
especially on Thursday and Friday, will be the potential for flash
flooding on area burn scars, including the Spring, Junkins and
Hayden Pass burn scars. Urban areas may also see an elevated
potential for flash flooding as well. More scattered shower and
thunderstorm activity is expected Saturday and Sunday. If a
stronger storm can move over a burn scar, and elevated risk of
flash flooding will remain possible. In addition to locally heavy
rainfall, lightning, small hail and gusty outflow winds will also
be possible.

Drier conditions are expected early next week as high pressure
builds across the region. A few showers and thunderstorms will
remain possible Monday and Tuesday. Gusty winds will be the
primary threat.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
possible over south central and southeast Colorado this afternoon and
evening.

23/23

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 6:27 PM MDTSpecial Weather StatementPUBProwers18 min
Aug 6, 6:36 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers24 min
Aug 6, 6:56 PM MDTSpecial Weather StatementPUBCostilla34 min
Aug 6, 7:00 PM MDTSevere Thunderstorm WarningPUBProwers45 min
Aug 6, 7:15 PM MDTSpecial Weather StatementPUBHuerfano15 min
Aug 6, 7:44 PM MDTSevere Thunderstorm WarningPUBProwers20 min
Aug 6, 8:40 PM MDTAreal Flood AdvisoryPUBBent2 hr
Aug 6, 10:43 PM MDTSpecial Weather StatementPUBBent62 min
Aug 7, 2:34 PM MDTAreal Flood AdvisoryPUBCostilla, Huerfano3 hr
Aug 7, 2:45 PM MDTFlash Flood WarningPUBCostilla, Huerfano3 hr
Aug 7, 3:01 PM MDTAreal Flood AdvisoryPUBCostilla, Huerfano2 hr
Aug 7, 3:37 PM MDTSpecial Weather StatementPUBFremont23 min

Nearby

Flash Flood Watches in Colorado, 2019Every flash flood watch in 2019

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.