Alert archive / Iowa / Tornado Warnings in 2010
Tornado Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Apr 6, 2010, 7:41 PM CDT for Jasper County, Mahaska County, Poweshiek County, Iowa. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2010, 7:41 PM CDT (00:41 UTC)
- Expired
- Apr 6, 2010, 8:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
Counties Jasper County, IA, Mahaska County, IA, Poweshiek County, IA
The radar
The Des Moines radar (KDMX), 95 km from the middle of the area, began a volume at 00:43 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 6, 2:57 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 174 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
- 855 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1436 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
559
WFUS53 KDMX 070041
TORDMX
IAC099-123-157-070115-
/O.NEW.KDMX.TO.W.0002.100407T0041Z-100407T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
741 PM CDT TUE APR 6 2010
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN JASPER COUNTY IN CENTRAL IOWA...
NORTHWESTERN MAHASKA COUNTY IN SOUTH CENTRAL IOWA...
POWESHIEK COUNTY IN CENTRAL IOWA...
* UNTIL 815 PM CDT
* AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTHEAST OF PELLA...OR 32 MILES WEST OF
SIGOURNEY...AND MOVING NORTHEAST AT 60 MPH.
* LOCATIONS IMPACTED INCLUDE...
NEW SHARON...MONTEZUMA...BROOKLYN...LYNNVILLE...SEARSBORO...
MALCOM...DEEP RIVER...GUERNSEY AND HARTWICK.
THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 185 AND 204.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR
THE TORNADO. TAKE COVER NOW.
&&
LAT...LON 4139 9278 4152 9288 4186 9251 4186 9230
4160 9230
TIME...MOT...LOC 0041Z 228DEG 51KT 4148 9275
$$
BEERENDS2 follow-up statements
970
WWUS53 KDMX 070055
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
755 PM CDT TUE APR 6 2010
IAC099-123-070105-
/O.CAN.KDMX.TO.W.0002.000000T0000Z-100407T0115Z/
JASPER IA-MAHASKA IA-
755 PM CDT TUE APR 6 2010
...THE TORNADO WARNING FOR NORTHWESTERN MAHASKA AND SOUTHEASTERN
JASPER COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4151 9251 4151 9275 4170 9268 4186 9251
4186 9230 4160 9230
TIME...MOT...LOC 0055Z 231DEG 43KT 4158 9258
$$
IAC157-070115-
/O.CON.KDMX.TO.W.0002.000000T0000Z-100407T0115Z/
POWESHIEK IA-
755 PM CDT TUE APR 6 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR POWESHIEK COUNTY UNTIL 815
PM CDT...
AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES WEST OF MONTEZUMA...OR 27 MILES NORTHWEST
OF SIGOURNEY...MOVING NORTHEAST AT 50 MPH.
LOCATIONS IMPACTED INCLUDE...
MONTEZUMA...BROOKLYN...MALCOM...DEEP RIVER...GUERNSEY AND HARTWICK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.
&&
LAT...LON 4151 9251 4151 9275 4170 9268 4186 9251
4186 9230 4160 9230
TIME...MOT...LOC 0055Z 231DEG 43KT 4158 9258
$$
BEERENDS424
WWUS53 KDMX 070111
SVSDMX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
811 PM CDT TUE APR 6 2010
IAC157-070121-
/O.EXP.KDMX.TO.W.0002.000000T0000Z-100407T0115Z/
POWESHIEK IA-
811 PM CDT TUE APR 6 2010
...THE TORNADO WARNING FOR POWESHIEK COUNTY WILL EXPIRE AT 815 PM
CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 1000 OM CDT.
LAT...LON 4151 9251 4151 9275 4170 9268 4186 9251
4186 9230 4160 9230
TIME...MOT...LOC 0111Z 231DEG 43KT 4170 9238
$$
BEERENDSThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:37 PM CDT | Areal Flood Advisory | DMX | Marion | 3 hr |
Nearby
Tornado Warnings in Iowa, 2010Every tornado warning in 2010Tornadoes 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.