Alert archive / Iowa / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 13, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 12, 2014, 11:50 PM CDT for 5 counties in Iowa. It was in force for 55 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 12, 2014, 11:50 PM CDT (04:50 UTC)
- Expired
- Apr 13, 2014, 12:45 AM CDT
- In force
- 55 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Henry County, IA, Jefferson County, IA, Keokuk County, IA, Van Buren County, IA, Washington County, IA
The radar
The Quad Cities radar (KDVN), 135 km from the middle of the area, began a volume at 04:52 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 12, 11:55 PM CDT | TSTM WND GST 52 | Sigourney, IA | IADOT RWIS STATION |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 12, 9:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.8 hours before the alert went out and 142 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
- 661 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 1978 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
944
WUUS53 KDVN 130450
SVRDVN
IAC087-101-107-177-183-130545-
/O.NEW.KDVN.SV.W.0013.140413T0450Z-140413T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1150 PM CDT SAT APR 12 2014
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN HENRY COUNTY IN SOUTHEAST IOWA...
JEFFERSON COUNTY IN SOUTHEAST IOWA...
KEOKUK COUNTY IN SOUTHEAST IOWA...
NORTHERN VAN BUREN COUNTY IN SOUTHEAST IOWA...
SOUTHERN WASHINGTON COUNTY IN SOUTHEAST IOWA...
* UNTIL 1245 AM CDT
* AT 1143 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WHAT CHEER TO 15 MILES SOUTHWEST OF OTTUMWA...AND
MOVING NORTHEAST AT 45 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED. THESE STORMS PRODUCED 60 MPH WINDS IN
KNOXVILLE IOWA AT AROUND 1120 AM CDT.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
SIGOURNEY...FAIRFIELD...MOUNT PLEASANT...WASHINGTON...DELTA...
HEDRICK...HAYESVILLE...MARTINSBURG...DOUDS/LEANDO...BATAVIA...
HARPER...ABINGDON...LIBERTYVILLE...BIRMINGHAM...PACKWOOD...
MAHARISHI VEDIC CITY...RICHLAND...STOCKPORT...PLEASANT PLAIN AND
LOCKRIDGE.
OTHER LOCATIONS AFFECTED INCLUDE HENRY COUNTY FAIRGROUNDS...JEFFERSON
COUNTY FAIRGROUNDS...WASHINGTON COUNTY FAIRGROUNDS...KEOKUK COUNTY
EXPO...BRINTON TIMBER PARK...JEFFERSON COUNTY PARK...ROUND PRAIRIE
PARK...MAC COON ACCESS PARK...OAKLAND MILLS COUNTY PARK...LAKE
YENRUOGIS COUNTY PARK...BELVA DEER RECREATION AREA...MORRIS PARK...
MARR PARK...WATER WORKS COUNTY PARK AND GIBSON RECREATION AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4140 9242 4140 9151 4085 9147 4083 9219
4115 9219 4117 9242
TIME...MOT...LOC 0448Z 243DEG 55KT 4141 9235 4094 9257
HAIL...1.00IN
WIND...60MPH
$$
122 follow-up statements
025
WWUS53 KDVN 130518
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1218 AM CDT SUN APR 13 2014
IAC087-101-107-177-183-130545-
/O.CON.KDVN.SV.W.0013.000000T0000Z-140413T0545Z/
WASHINGTON IA-VAN BUREN IA-KEOKUK IA-JEFFERSON IA-HENRY IA-
1218 AM CDT SUN APR 13 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
HENRY...JEFFERSON...KEOKUK...NORTHERN VAN BUREN AND SOUTHERN
WASHINGTON COUNTIES UNTIL 1245 AM CDT...
AT 1213 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES SOUTH OF WELLMAN TO ABINGDON...AND MOVING EAST
AT 50 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
WASHINGTON...MOUNT PLEASANT...PLEASANT PLAIN...BRIGHTON...
STOCKPORT...LOCKRIDGE...COPPOCK...ROME...AINSWORTH...WAYLAND...
SALEM...WESTWOOD...CRAWFORDSVILLE...OLDS...LAKE DARLING STATE PARK...
PERLEE...BECKWITH...EAST PLEASANT PLAIN...SALINA AND GLASGOW.
OTHER LOCATIONS AFFECTED INCLUDE HENRY COUNTY FAIRGROUNDS...JEFFERSON
COUNTY FAIRGROUNDS...WASHINGTON COUNTY FAIRGROUNDS...KEOKUK COUNTY
EXPO...BRINTON TIMBER PARK...JEFFERSON COUNTY PARK...ROUND PRAIRIE
PARK...MAC COON ACCESS PARK...OAKLAND MILLS COUNTY PARK...LAKE
YENRUOGIS COUNTY PARK...BELVA DEER RECREATION AREA...MORRIS PARK...
MARR PARK...WATER WORKS COUNTY PARK AND GIBSON RECREATION AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
&&
LAT...LON 4140 9242 4140 9151 4085 9147 4083 9219
4115 9219 4117 9242
TIME...MOT...LOC 0518Z 264DEG 53KT 4140 9175 4108 9199
HAIL...1.00IN
WIND...60MPH
$$
12807
WWUS53 KDVN 130548
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1248 AM CDT SUN APR 13 2014
IAC087-101-107-177-183-130556-
/O.EXP.KDVN.SV.W.0013.000000T0000Z-140413T0545Z/
WASHINGTON IA-VAN BUREN IA-KEOKUK IA-JEFFERSON IA-HENRY IA-
1248 AM CDT SUN APR 13 2014
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN HENRY...JEFFERSON...
KEOKUK...NORTHERN VAN BUREN AND SOUTHERN WASHINGTON COUNTIES HAS
EXPIRED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY. HOWEVER...GUSTY WINDS UP TO 45 MPH...SMALL HAIL AND HEAVY
RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS ACROSS MUCH OF
WASHINGTON COUNTY THROUGH 115 AM CDT.
LAT...LON 4140 9242 4140 9151 4085 9147 4083 9219
4115 9219 4117 9242
TIME...MOT...LOC 0518Z 264DEG 53KT 4140 9175 4108 9199
$$
12The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 10:15 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 60 min |
| Apr 12, 11:35 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Keokuk, Linn, Washington | 55 min |
| Apr 13, 12:27 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn, Louisa, Muscatine and 1 more | 63 min |
| Apr 13, 1:17 AM CDT | Special Weather Statement | DVN | Clinton, Jackson, Scott | 58 min |
| Apr 13, 1:30 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 45 min |
| Apr 13, 1:27 PM CDT | Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 14 hr |
| Apr 13, 6:03 PM CDT | Tornado Warning | DVN | Cedar, Johnson, Muscatine | 27 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2014Every severe thunderstorm warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.