Alert archive / Iowa / Freezing Rain Advisories in 2006

Freezing Rain Advisory 2, NWS Des Moines, IA

February 15, 20069 counties in Iowa

NWS Des Moines, IA issued this freezing rain advisory at Feb 15, 2006, 3:27 PM CST for 9 counties in Iowa. It took effect at Feb 16, 2006, 12:00 AM CST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Feb 15, 2006, 3:27 PM CST (21:27 UTC)
In effect from
Feb 16, 2006, 12:00 AM CST
Expired
Feb 16, 2006, 10:45 AM CST
In force
11 hr
Issued by
NWS Des Moines, IA

Counties Appanoose County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Lucas County, IA, Mahaska County, IA, Monroe County, IA, Wapello County, IA, Wayne County, IA

The radar

The Des Moines radar (KDMX), 105 km from the middle of the area, began a volume at 21:33 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

Davenport, (KDVN), launched 12:00Z, 9.5 hours before the alert went out and 226 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, Davenport, at 12:00Z on 2006-02-15Temperature 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, Davenport, at 12:00Z on 2006-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -72 square meters per square second.1939587897117Sfc1 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
1577 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-72 m²/s²
0-3 km storm-relative helicity
52 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 freezing rain advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this freezing rain advisory went out at Feb 15, 3:00 PM CST, 27 minutes earlier.

Area forecast discussion, Feb 15, 3:00 PM CST, 27 minutes before
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Hazardous weather outlook, Feb 15, 6:07 AM CST, 9 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
607 AM CST WED FEB 15 2006

IAZ004>007-015>017-023>028-033>039-044>050-161200-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-
607 AM CST WED FEB 15 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA
ALONG AND NORTH OF HIGHWAY 30.

.DAY ONE...TODAY AND TONIGHT

SNOW WILL DEVELOP LATE THIS EVENING. LIGHT ACCUMULATIONS ARE
EXPECTED THROUGH THE EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNOW WILL BECOME HEAVY AND CONTINUE THROUGH LATE THURSDAY. HEAVY
SNOW ACCUMULATIONS ARE EXPECTED BEFORE THE SNOW ENDS THURSDAY
EVENING. STRONG NORTH WINDS WILL PRODUCE CONSIDERABLE BLOWING AND
DRIFTING SNOW...ESPECIALLY IN OPEN AREAS. BITTERLY COLD AIR WILL
FOLLOW THIS STORM WITH TEMPERATURES WELL BELOW NORMAL INTO THE
FIRST PART OF THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. SNOWFALL ACCUMULATIONS ARE
APPRECIATED.

IAZ057>062-070>073-081-082-092-161200-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-
WARREN-ADAMS-UNION-TAYLOR-
607 AM CST WED FEB 15 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA
SOUTH OF HIGHWAY 30...AND NORTH OF AN OSKALOOSA TO BEDFORD LINE.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

A MIX OF SNOW AND SLEET OR FREEZING DRIZZLE WILL BEGIN THIS
EVENING AND CONTINUE OVERNIGHT. LIGHT ICE ACCUMULATIONS ARE
EXPECTED WITH ACCUMULATIONS LESS THAN A TENTH OF AN INCH. THE
PRECIPITATION WILL MAKE UNTREATED ROADWAYS HAZARDOUS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNOW WITH LIGHT TO MODERATE ACCUMULATIONS CAN BE EXPECTED DURING
THE DAY. STRONG NORTH WINDS WILL ALSO PRODUCE BLOWING SNOW
REDUCING VISIBILITIES...ESPECIALLY IN OPEN AREAS. BITTERLY COLD
AIR WILL THEN MOVE INTO THE AREA WITH TEMPERATURES WELL BELOW
NORMAL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. ICE AND SNOW ACCUMULATIONS
ARE APPRECIATED.

IAZ074-075-083>086-093>097-161200-
MARION-MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-RINGGOLD-DECATUR-WAYNE-
APPANOOSE-DAVIS-
607 AM CST WED FEB 15 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA
SOUTH OF AN OSKALOOSA TO BEDFORD LINE.

.DAY ONE...TODAY AND TONIGHT

PERIODS OF RAIN...FREEZING RAIN OR SLEET WILL BEGIN THIS EVENING
AND CONTINUE THROUGH THE NIGHT. LIGHT ACCUMULATIONS OF LESS THAN A
TENTH OF AN INCH ARE EXPECTED. THE PRECIPITATION WILL MAKE
UNTREATED ROADWAYS HAZARDOUS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PERIODS OF FREEZING RAIN...FREEZING DRIZZLE OR SLEET WILL
CONTINUE THROUGH THE DAY. ACCUMULATIONS OF UP TO A TENTH OF
AN INCH ARE EXPECTED ARE EXPECTED MAKING TRAVEL HAZARDOUS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. ICE ACCUMULATIONS ARE
APPRECIATED.

RUSSELL

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 11:18 AM CSTWinter Storm WarningDMXBlack Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 21 more31 hr
Feb 15, 3:27 PM CSTWinter Weather AdvisoryDMXAdair, Adams, Appanoose, Audubon, Boone, Carroll and 25 more27 hr

Nearby

Freezing Rain Advisories in Iowa, 2006Every freezing rain advisory in 2006

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.