Alert archive / Iowa / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 190, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 21, 2010, 11:04 PM CDT for 4 counties in Iowa. It was in force for 45 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
- Jun 21, 2010, 11:04 PM CDT (04:04 UTC)
- Expired
- Jun 21, 2010, 11:49 PM CDT
- In force
- 45 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Appanoose County, IA, Davis County, IA, Monroe County, IA, Wapello County, IA
The radar
The Des Moines radar (KDMX), 130 km from the middle of the area, began a volume at 04:07 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 00:00Z, 4.1 hours before the alert went out and 196 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
- 2621 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 930 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.6
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 Jun 21, 9:43 PM CDT, 1 hour 21 minutes earlier.
Area forecast discussion, Jun 21, 9:43 PM CDT, 1 hour 21 minutes before
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</html>Hazardous weather outlook, Jun 21, 3:31 PM CDT, 7 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 331 PM CDT MON JUN 21 2010 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-222045- 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-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE- DAVIS- 331 PM CDT MON JUN 21 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT CHANCE FOR SEVERE WEATHER LATE THIS AFTERNOON AND OVERNIGHT TONIGHT. A FEW SUPER CELL THUNDERSTORMS ARE POSSIBLE SOUTH OF INTERSTATE 80 BETWEEN 5 AND 10 PM THIS EVENING AND WOULD BRING THE POTENTIAL FOR GOLF BALL SIZED HAIL...70 MPH WINDS AND ISOLATED TORNADOES. ADDITIONAL SCATTERED STORMS ARE POSSIBLE OVER THE REMAINDER OF THE AREA AFTER 10 PM WITH QUARTER SIZED HAIL AND 60 MPH WINDS POSSIBLE. LOCALIZED HEAVY RAINFALL MAY OCCUR. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ADDITIONAL SEVERE STORMS ALONG WITH HEAVY RAINFALL ARE POSSIBLE TUESDAY INTO WEDNESDAY. A SLIGHT CHANCE OF THUNDERSTORMS WILL RETURN THURSDAY NIGHT AND CONTINUE FOR ALL OR PART OF THE AREA THROUGH SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 5 PM AND 10 PM THIS EVENING SOUTH OF INTERSTATE 80. DONAVON
In the hours before
Special weather statement, Jun 21, 6:07 PM CDT, 4 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 607 PM CDT MON JUN 21 2010 IAZ084>086-094>097-220100- LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...CHARITON...ALBIA...OTTUMWA...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 607 PM CDT MON JUN 21 2010 ...STRONG TO SEVERE THUNDERSTORMS EXPECTED EARLY THIS EVENING... SCATTERED THUNDERSTORMS CONTINUE TO DEVELOP OVER SOUTHERN IOWA NEAR LEON AND CORYDON. THESE STORMS WILL CONTINUE ADVANCING EAST NORTHEAST TOWARD CENTERVILLE...BLOOMFIELD AND OTTUMWA BETWEEN 600 PM AND 800 PM. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS...LOCALLY HEAVY RAIN...AND ISOLATED TORNADOES. A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM. SMALL
Special weather statement, Jun 21, 7:59 PM CDT, 3 hours 5 minutes before
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</html>Special weather statement, Jun 21, 10:25 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1025 PM CDT MON JUN 21 2010 IAZ097-220400- DAVIS- 1025 PM CDT MON JUN 21 2010 AT 1020 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER EXTREME SOUTH CENTRAL DAVIS COUNTY...MOVING EAST AT 30 MPH. PENNY SIZE HAIL...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. BEITLICH
Special weather statement, Jun 21, 10:32 PM CDT, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1032 PM CDT MON JUN 21 2010 IAZ085-096-220400- APPANOOSE-MONROE- 1032 PM CDT MON JUN 21 2010 AT 1029 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER NORTH CENTRAL APPANOOSE COUNTY...MOVING EAST AT 20 MPH. NICKEL SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF MODERATE DOWNPOURS...ARE POSSIBLE WITH THIS STORM. * THE THUNDERSTORM WILL BE NEAR... MORAVIA BY 1050 PM CDT... UNIONVILLE BY 1100 PM CDT... GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. PODRAZIK
Special weather statement, Jun 21, 11:00 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1100 PM CDT MON JUN 21 2010 IAZ096-097-220500- APPANOOSE-DAVIS- INCLUDING THE CITIES OF...CENTERVILLE...BLOOMFIELD 1100 PM CDT MON JUN 21 2010 ...STRONG THUNDERSTORMS CONTINUE THIS EVENING... SCATTERED THUNDERSTORMS CONTINUE TO AFFECT PORTIONS OF SOUTHEAST IOWA LATE THIS EVENING. SOME OF THESE STORMS MAY BE STRONG PRODUCING UP TO NICKEL SIZED HAIL AND LOCALLY HEAVY RAINS. THE STORMS WILL PRIMARILY AFFECT EASTERN APPANOOSE AND DAVIS COUNTIES THROUGH 100 AM. SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:25 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 32 min |
| Jun 21, 9:29 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 31 min |
| Jun 22, 4:32 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Madison, Ringgold, Union | 43 min |
| Jun 22, 4:59 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Marion, Warren | 46 min |
| Jun 22, 5:42 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Polk, Warren | 48 min |
| Jun 22, 6:02 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 43 min |
| Jun 22, 6:15 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 30 min |
| Jun 22, 6:36 AM CDT | Severe Thunderstorm Warning | DMX | Davis | 39 min |
| Jun 22, 8:26 AM CDT | River Flood Warning | DMX | Madison, Warren | 43 hr |
| Jun 22, 8:27 AM CDT | Flash Flood Warning | DMX | Wapello | 4 hr |
| Jun 22, 2:40 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 6 hr |
| Jun 22, 3:40 PM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 20 hr |
Nearby
Severe Thunderstorm Warnings in Iowa, 2010Every severe thunderstorm warning in 2010
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.