Alert archive / Iowa / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 3, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 30, 2012, 12:01 AM CDT for Buchanan County, Delaware County, Iowa. It was in force for 29 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
- Mar 30, 2012, 12:01 AM CDT (05:01 UTC)
- Expired
- Mar 30, 2012, 12:30 AM CDT
- In force
- 29 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 58.0 mph
Counties Buchanan County, IA, Delaware County, IA
The radar
The Quad Cities radar (KDVN), 137 km from the middle of the area, began a volume at 05:02 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, 5.0 hours before the alert went out and 141 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
- 1518 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
700 WUUS53 KDVN 300501 SVRDVN IAC019-055-300530- /O.NEW.KDVN.SV.W.0003.120330T0501Z-120330T0530Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1201 AM CDT FRI MAR 30 2012 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BUCHANAN COUNTY IN NORTHEAST IOWA... NORTHWESTERN DELAWARE COUNTY IN NORTHEAST IOWA... * UNTIL 1230 AM CDT. * AT 1157 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR WINTHROP...OR 6 MILES EAST OF INDEPENDENCE...AND MOVING NORTHEAST AT 45 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AURORA...LAMONT...DUNDEE AND EDGEWOOD. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY FROM WINDOWS. && LAT...LON 4238 9176 4252 9192 4265 9174 4265 9133 TIME...MOT...LOC 0500Z 229DEG 40KT 4252 9174 WIND...HAIL <58MPH 1.00IN $$ LE
1 follow-up statement
768 WWUS53 KDVN 300525 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1225 AM CDT FRI MAR 30 2012 IAC019-055-300534- /O.EXP.KDVN.SV.W.0003.000000T0000Z-120330T0530Z/ DELAWARE IA-BUCHANAN IA- 1225 AM CDT FRI MAR 30 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BUCHANAN AND NORTHWESTERN DELAWARE COUNTIES WILL EXPIRE AT 1230 AM CDT... THE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER HAS WEAKENED...AND MOVED OUT OF THE AREA. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4238 9176 4252 9192 4265 9174 4265 9133 TIME...MOT...LOC 0524Z 229DEG 40KT 4269 9146 $$ LE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:02 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Johnson, Linn | 58 min |
| Mar 29, 10:09 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 66 min |
| Mar 29, 11:53 PM CDT | Special Weather Statement | DVN | Buchanan | 52 min |
| Mar 30, 4:44 AM CDT | Special Weather Statement | DVN | Muscatine, Scott | 61 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2012Every severe thunderstorm warning in 2012
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.