Alert archive / Colorado / Areal Flood Advisories in 2011

Areal Flood Advisory 39, NWS Pueblo, CO

August 4, 2011Las Animas County, Colorado

NWS Pueblo, CO issued this areal flood advisory at Aug 4, 2011, 12:54 PM MDT for Las Animas County, Colorado. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Aug 4, 2011, 12:54 PM MDT (18:54 UTC)
Expired
Aug 4, 2011, 1:28 PM MDT
In force
34 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon

County Las Animas County, CO

The radar

The Pueblo radar (KPUX), 128 km from the middle of the area, began a volume at 18:55 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 12:00Z, 6.9 hours before the alert went out and 293 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 2011-08-04Temperature 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 2011-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
2131 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
6 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 areal flood advisory 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 areal flood advisory went out at Aug 4, 5:13 AM MDT, 7 hours 41 minutes earlier.

Area forecast discussion, Aug 4, 5:13 AM MDT, 7 hours 41 minutes before
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Hazardous weather outlook, Aug 4, 11:53 AM MDT, 1 hour 1 minute before
HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE PUEBLO CO
1153 AM MDT THU AUG 4 2011

COZ058>089-093>099-051300-
WESTERN MOSQUITO RANGE/EAST LAKE COUNTY ABOVE 11000 FT-
LEADVILLE VICINITY/LAKE COUNTY BELOW 11000 FT-
EASTERN SAWATCH MOUNTAINS ABOVE 11000 FT-
WESTERN CHAFFEE COUNTY BETWEEN 9000 AND 11000 FT-
CENTRAL CHAFFEE COUNTY BELOW 9000 FT-
WESTERN MOSQUITO RANGE/EAST CHAFFEE COUNTY ABOVE 9000 FT-
SAGUACHE COUNTY WEST OF CONTINENTAL DIVIDE BELOW 10000 FT-
SAGUACHE COUNTY EAST OF CONTINENTAL DIVIDE BELOW 10000 FT-
LA GARITA MOUNTAINS ABOVE 10000 FT-
UPPER RIO GRANDE VALLEY/EASTERN SAN JUAN MOUNTAINS BELOW 10000 FT-
EASTERN SAN JUAN MOUNTAINS ABOVE 10000 FT-
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
NORTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 8500 AND 11000 FT-
NORTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FEET-
SOUTHERN SANGRE DE CRISTO MOUNTAINS BETWEEN 7500 AND 11000 FT-
SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 11000 FT-
NORTHWESTERN FREMONT COUNTY ABOVE 8500 FT-
WESTERN/CENTRAL FREMONT COUNTY BELOW 8500 FT-
WET MOUNTAIN VALLEY BELOW 8500 FEET-
WET MOUNTAINS BETWEEN 6300 AND 10000 FT-
WET MOUNTAINS ABOVE 10000 FT-
TELLER COUNTY/RAMPART RANGE ABOVE 7500 FT/PIKES PEAK BETWEEN
7500 AND 11000 FT-PIKES PEAK ABOVE 11000 FT-
CANON CITY VICINITY/EASTERN FREMONT COUNTY-
NORTHERN EL PASO COUNTY/MONUMENT RIDGE/RAMPART RANGE BELOW
7500 FT-
COLORADO SPRINGS VICINITY/SOUTHERN EL PASO COUNTY/RAMPART RANGE
BELOW 7400 FT-PUEBLO AND VICINITY/PUEBLO COUNTY BELOW 6300 FT-
WALSENBURG VICINITY/UPPER HUERFANO RIVER BASIN BELOW 7500 FT-
TRINIDAD VICINITY/WESTERN LAS ANIMAS COUNTY BELOW 7500 FT-
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-
1153 AM MDT THU AUG 4 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL...EAST
CENTRAL...SOUTH CENTRAL AND SOUTHEAST COLORADO.

.DAY ONE...THIS AFTERNOON

A FLASH FLOOD WATCH REMAINS IN EFFECT THIS AFTERNOON THROUGH THIS
EVENING FOR EL PASO...TELLER...PUEBLO...FREMONT...HUERFANO AND LAS
ANIMAS COUNTIES.

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE TO
DEVELOP OVER THE HIGHER TERRAIN THIS AFTERNOON...WHICH ARE EXPECTED
TO MOVE OUT ACROSS THE EASTERN PLAINS THIS EVENING AND OVERNIGHT.
THESE SLOW MOVING STORMS WILL HAVE THE TO POTENTIAL TO PRODUCE
HEAVY RAIN...WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR
POSSIBLE...UNDER THE STRONGEST STORMS. THIS WILL AGAIN POSE THE
THREAT OF FLASH FLOODING...ESPECIALLY OVER AREAS WITH POOR DRAINAGE
AND WHERE HEAVY RAIN HAS OCCURRED OVER THE PAST FEW DAYS. IN ADDITION
TO HEAVY RAINFALL...THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING
FREQUENT LIGHTNING...WIND GUSTS TO AROUND 40 MPH AND PEA SIZE HAIL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

FRIDAY THROUGH WEDNESDAY...ISOLATED TO SCATTERED AFTERNOON AND EVENING
THUNDERSTORMS ARE EXPECTED EACH DAY ACROSS SOUTHERN COLORADO. LOCALLY
HEAVY RAINS...MAINLY ON FRIDAY...AND LIGHTNING APPEAR TO BE THE PRIMARY
CONCERNS WITH THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

WEATHER CONDITIONS THAT MEET REPORTING CRITERIA FOR SPOTTERS WILL
BE POSSIBLE THROUGH THIS EVENING FOR ALL OF SOUTHEAST COLORADO.

23/23

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 7:45 PM MDTAreal Flood AdvisoryPUBHuerfano, Las Animas54 min
Aug 4, 4:36 AM MDTFlash Flood WatchPUBCuster, El Paso, Fremont, Huerfano, Las Animas, Teller15 hr
Aug 4, 1:23 PM MDTFlash Flood WarningPUBLas Animas2 hr
Aug 4, 3:07 PM MDTFlash Flood WarningPUBTeller82 min
Aug 4, 3:41 PM MDTAreal Flood AdvisoryPUBFremont112 min
Aug 4, 4:00 PM MDTAreal Flood AdvisoryPUBEl Paso2 hr
Aug 4, 4:22 PM MDTAreal Flood AdvisoryPUBEl Paso2 hr
Aug 4, 5:05 PM MDTAreal Flood AdvisoryPUBEl Paso115 min

Nearby

Areal Flood Advisories in Colorado, 2011Every areal flood advisory in 2011

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.