Alert archive / Colorado / Areal Flood Warnings in 2014

Areal Flood Warning 2, NWS Denver/Boulder, CO

May 23, 2014Morgan County, Colorado

NWS Denver/Boulder, CO issued this areal flood warning at May 23, 2014, 1:32 AM MDT for Morgan County, Colorado. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 23, 2014, 1:32 AM MDT (07:32 UTC)
Expired
May 23, 2014, 5:30 AM MDT
In force
4 hr
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Flood severity
None

County Morgan County, CO

The radar

The Denver radar (KFTG), 82 km from the middle of the area, began a volume at 07:33 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 00:00Z, 7.5 hours before the alert went out and 66 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 00:00Z on 2014-05-23Temperature 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 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 00:00Z on 2014-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 square meters per square second.19395878Sfc1 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
1115 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
41 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this areal flood warning went out at May 22, 8:41 PM MDT, 4 hours 51 minutes earlier.

Area forecast discussion, May 22, 8:41 PM MDT, 4 hours 51 minutes before
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Hazardous weather outlook, May 22, 10:41 AM MDT, 14 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1041 AM MDT THU MAY 22 2014

COZ030>051-231645-
JACKSON COUNTY BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
1041 AM MDT THU MAY 22 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL DEVELOP IN THE MOUNTAINS AND
FOOTHILLS BY MIDDAY WITH ADDITIONAL ACTIVITY WILL SPREAD EAST
OVER THE FRONT RANGE AND PALMER DIVIDE BY EARLY TO MID AFTERNOON.
A FEW OF THE STORMS MAY BECOME SEVERE THIS AFTERNOON INTO THE
EARLY EVENING HOURS OVER NORTHEAST COLORADO. THE HIGHEST POTENTIAL
FOR SEVERE WEATHER WILL BE ALONG AND SOUTH OF A LINE FROM DENVER
TO AKRON. HAIL UP TO 1.5 INCHES IN DIAMETER ALONG WITH A FEW WIND
GUSTS TO 60 MPH WILL BE POSSIBLE. A FEW BRIEF TORNADOES COULD ALSO
OCCUR.

STORMS WILL BE SLOWER MOVING TODAY SO RAINFALL AMOUNTS UP TO 2
INCHES COULD OCCUR IN LESS THAN 45 MINUTES OVER NORTHEAST COLORADO
WHICH COULD LEAD TO SOME FLOODING. IN THE FOOTHILLS...A FEW
STORMS COULD PRODUCE UP TO AN INCH OF RAIN IN 45 MINUTES OR LESS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

EXPECT ANOTHER DAY OF SLOW MOVING THUNDERSTORMS FRIDAY. THERE WILL
BE LESS OF A THREAT OF SEVERE STRENGTH STORMS...HOWEVER SMALL HAIL
AND HEAVY RAIN MAY LEAD TO POTENTIAL MINOR FLOODING ISSUES.

SATURDAY WILL STILL HAVE A CHANCE FOR THUNDERSTORMS BUT WITH
SLIGHTLY LESS AVAILABLE MOISTURE. WRAP AROUND MOISTURE ON THE
BACKSIDE THE DEPARTING STORM SYSTEM WILL BRING ANOTHER SHOT OF
SHOWERS AND THUNDERSTORMS ON SUNDAY AND EARLY MONDAY BEFORE THINGS
DRY OUT AND WARM UP THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED BY 2 PM THIS AFTERNOON ALONG
THE FRONT RANGE.

In the hours before

Special weather statement, May 22, 7:53 PM MDT, 5 hours 39 minutes before
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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 6:09 PM MDTSevere Thunderstorm WarningBOUWashington36 min
May 22, 7:06 PM MDTSevere Thunderstorm WarningBOUWashington24 min
May 22, 7:53 PM MDTSpecial Weather StatementBOUWashington37 min
May 22, 9:37 PM MDTAreal Flood WarningBOUAdams, Morgan4 hr
May 23, 5:28 AM MDTAreal Flood WarningBOUMorgan4 hr
May 23, 1:22 PM MDTSpecial Weather StatementBOUDouglas38 min
May 23, 2:51 PM MDTSpecial Weather StatementBOUDenver39 min
May 23, 4:26 PM MDTRiver Flood AdvisoryBOULarimer38 hr
May 23, 4:26 PM MDTRiver Flood AdvisoryBOUWeld42 hr
May 23, 5:29 PM MDTAreal Flood AdvisoryBOUDouglas3 hr
May 23, 5:59 PM MDTAreal Flood AdvisoryBOULarimer3 hr

Nearby

Areal Flood Warnings in Colorado, 2014Every areal flood warning in 2014

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.