Alert archive / Iowa / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 125, NWS Quad Cities, IA

January 12, 2005Muscatine County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jan 12, 2005, 1:17 PM CST for Muscatine County, Iowa. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 12, 2005, 1:17 PM CST (19:17 UTC)
Expired
Jan 12, 2005, 1:45 PM CST
In force
28 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Muscatine County, IA

The radar

The Quad Cities radar (KDVN), 47 km from the middle of the area, began a volume at 19:19 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, 7.3 hours before the alert went out and 53 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 2005-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2005-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 303 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
397 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
303 m²/s²
0-3 km storm-relative helicity
323 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 12, 4:45 AM CST, 8 hours 32 minutes earlier.

Area forecast discussion, Jan 12, 4:45 AM CST, 8 hours 32 minutes before
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Hazardous weather outlook, Jan 12, 5:06 AM CST, 8 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
506 AM CST WED JAN 12 2005

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-131100-
BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO-
CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL-
HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA-
JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA-
MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL-
SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL-
WASHINGTON IA-WHITESIDE IL-
506 AM CST WED JAN 12 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST...EAST
CENTRAL...AND SOUTHEAST IOWA...NORTHWEST...NORTH CENTRAL...AND WEST
CENTRAL ILLINOIS...AND NORTHEAST MISSOURI.

.DAY ONE...TODAY AND TONIGHT

A WIDE VARIETY OF WEATHER CAN BE EXPECTED OVER THE NEXT 24 HOURS AS A
STRONG STORM SYSTEM AFFECTS THE AREA.

AREAS OF DRIZZLE AND FOG CAN BE EXPECTED THROUGHOUT THE MORNING
OVER MUCH OF THE AREA. VISIBILITIES ARE HOVERING NEAR ONE QUARTER
MILE BUT ARE EXPECTED TO SLOWLY IMPROVE BY LATE MORNING AND DURING
THE AFTERNOON. RAIN WILL DEVELOP AND MOVE INTO THE AREA DURING THE
LATE MORNING AND CONTINUE THROUGH THE AFTERNOON.

ISOLATED THUNDERSTORMS ARE POSSIBLE FROM 10 AM TO 3 PM...WITH THE
MOST LIKELY AREA ALONG AND EAST OF THE MISSISSIPPI AND ALONG AND
SOUTH OF INTERSTATE 80. NO SEVERE WEATHER IS EXPECTED AT THIS TIME.
HOWEVER...LOW FREEZING LEVELS MAY RESULT IN PEA SIZED HAIL OR SLEET.

ADDITIONALLY...LOCALLY HEAVY RAIN IS POSSIBLE ALONG AND EAST OF THE
MISSISSIPPI AND MAINLY SOUTH OF HIGHWAY 30. THIS MAY RESULT IN
PONDING OF WATER IN LOW LYING AREAS. AREA RIVERS IN THIS AREA ARE
EXPECTED TO SHOW MODERATE IN BANK RISES THROUGH THE END OF THE WEEK.

LATE THIS AFTERNOON AND INTO TONIGHT BRINGS MORE WEATHER PROBLEMS.
FREEZING RAIN IS EXPECTED TO DEVELOP AS THE ATMOSPHERE COOLS
BRINGING SOME ICE ACCUMULATION. THE AREA AT GREATEST THREAT FOR
SIGNIFICANT ICE IS ALONG AND WEST OF A SIGOURNEY TO DUBUQUE LINE.
ICE ACCUMULATION IN THIS AREA COULD REACH ONE QUARTER INCH.

AS COLD AIR RUSHES IN BEHIND A STRONG ARCTIC FRONT TONIGHT...THE
RAIN WILL CHANGE OVER TO ALL SNOW. THERE WILL BE A BRIEF PERIOD OF
FREEZING RAIN AND SLEET DURING THE CHANGEOVER...BUT ICE
ACCUMULATIONS ARE ONLY EXPECTED TO BE AROUND ONE TENTH INCH. THE
SNOW SHOULD TAPER OFF TO FLURRIES LATE TONIGHT WITH SNOW
ACCUMULATIONS OF AN INCH OR LESS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH WEDNESDAY

THURSDAY...WINDY CONDITIONS ARE EXPECTED WITH TEMPERATURES FALLING
THROUGHOUT THE DAY. THE COMBINATION OF 20 TO 30 MPH WINDS...WITH
GUSTS TO 40 MPH...AND TEMPERATURES FALLING INTO THE TEENS...WILL
DROP WIND CHILLS TO OR JUST BELOW ZERO.

THURSDAY NIGHT THROUGH SATURDAY NIGHT...VERY COLD TEMPERATURES ARE
EXPECTED WITH WIND CHILLS REMAINING AT OR BELOW ZERO.

THERE ARE INDICATIONS THAT AN ALBERTA CLIPPER STORM SYSTEM WILL
AFFECT THE AREA ON SUNDAY...BRINGING A CHANCE OF SNOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT. REPORTS OF ICE
AND SNOW ACCUMULATION LATE THIS AFTERNOON AND TONIGHT WILL BE
APPRECIATED.

08/14

Nearby

Severe Thunderstorm Warnings in Iowa, 2005Every severe thunderstorm warning in 2005

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.