Alert archive / Iowa / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 169, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 30, 2006, 4:47 PM CDT for Adair County, Iowa. It was in force for 43 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
- May 30, 2006, 4:47 PM CDT (21:47 UTC)
- Expired
- May 30, 2006, 5:30 PM CDT
- In force
- 43 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Adair County, IA
The radar
The Des Moines radar (KDMX), 77 km from the middle of the area, began a volume at 21:49 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
Topeka, KS (KTOP), launched 12:00Z, 9.8 hours before the alert went out and 278 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1209 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -69 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 3:35 PM CDT, 1 hour 12 minutes earlier.
Area forecast discussion, May 30, 3:35 PM CDT, 1 hour 12 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE DES MOINES IA 335 PM CDT TUE MAY 30 2006 .DISCUSSION... CDFNT HOLD NRLY STNRY ACRS THE SRN THIRD OF THE STATE AND DONT SEE IT PROGRESSING SOUTH TOO FAST TONIGHT. CNVCTN BGNG TO GO NOW ALNG AND S OF THE BNDRY. WITH SVR PARAMETERS VERY WK, DONT LOOK FOR MUCH IN THE WAY OF SVR WX. ISOLD SIG RAFL AMTS ARE POSSIBLE WITH DEEP MSTR. FRONT WL CONT TO SAG SWD WED AND WED NGT AND SHAVED BACK THE POPS FOR BOTH PDS. A SIG DROP FM PREV FCST AND KEPT MOST OF THE RAIN OVR THE SRN THIRD OF THE STATE. TEMPS WL REMAIN ABV NORM BUT QUITE A BIT COOLER THAN THIS WKND. SHUD SEE SOME WRM UP LATER IN THE WEEK INTO THE WKND, BUT NOT A SUPER PUSH OF HOT AIR. WX FOR THE WKND A LTL MORE TRICKY WITH GFS SHWS A DECENT FFOPA SUN INTO MON. FEEL THE GFS IS OVERAGRESSIVE WITH THIS GIVEN THE STRENGTH OF THE ERN TROF IT IS TRYING TO DVLP. ECMWF AND CAN ARE SIGNIFICANTLY WEAKER WITH THE TROF. GIVEN STATE OF THE INTRASEASONAL INDICES AND POSITIONING OF CNVCTN IN THE IO, SUGGESTION IS TO GO WITH THE SOFTER SOLNS. WL BRUSH THE NERN PART OF THE CWA WITH SOME TSRA IN THE SUN NGT TIMEFRAME. && .DMX WATCHES/WARNINGS/ADVISORIES...NONE. &&
Hazardous weather outlook, May 30, 2:26 PM CDT, 2 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DES MOINES IA 226 PM CDT TUE MAY 30 2006 IAZ038-039-047>050-057>062-070>075-081>086-092>097-311100- GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- 226 PM CDT TUE MAY 30 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN IOWA...ALONG AND SOUTH OF A LINE FROM WATERLOO...TO BOONE...TO AUDUBON. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS WILL OCCUR ACROSS THE OUTLOOK AREA TODAY AND TONIGHT. AN ISOLATED SEVERE STORM IS POSSIBLE THIS AFTERNOON THROUGH EARLY EVENING MAINLY SOUTHEAST OF A WATERLOO TO NEWTON TO LAMONI LINE. THE PRIMARY THREAT IS HAIL UP TO NICKEL SIZE. A PERIOD OF HEAVY RAIN IS ALSO POSSIBLE. A FEW LOCATIONS MAY RECEIVE 1 TO 1.5 INCHES OF RAIN THROUGH DAYBREAK WEDNESDAY...WITH A AN ISOLATED AMOUNT APPROACHING 2 INCHES NOT OUT OF THE QUESTION. ISOLATED FLASH FLOODING IS A SMALL THREAT TODAY AND TONIGHT IF HEAVY RAINFALL REPEATEDLY OCCURS OVER ANY ONE AREA. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS WILL CONTINUE WEDNESDAY AND WEDNESDAY NIGHT...BUT ARE NOT EXPECTED TO BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EARLY THIS EVENING. REPORTS OF ANY HEAVY RAIN...OR ANY URBAN AND RURAL FLOODING ARE REQUESTED. IAZ004>007-015>017-023>028-033>037-044>046-311100- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-CRAWFORD-CARROLL-GREENE- 226 PM CDT TUE MAY 30 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND NORTHERN IOWA...NORTH OF A LINE FROM WATERLOO...TO BOONE...TO AUDUBON. .DAY ONE...TODAY AND TONIGHT WIDELY SCATTERED NON SEVERE THUNDERSTORMS MAY OCCUR THIS AFTERNOON AND EARLY EVENING. A ISOLATED STORM COULD PRODUCE HAIL UP TO DIME SIZE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE POSSIBLE WEDNESDAY AND WEDNESDAY NIGHT...BUT ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. KINNEY/R
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 24 min |
| May 30, 5:27 PM CDT | Severe Thunderstorm Warning | DMX | Union | 48 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2006Every severe thunderstorm warning 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.