Alert archive / Missouri / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 378

July 13, 20165 counties in Illinois; 32 counties in Iowa; 62 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jul 13, 2016, 11:14 AM CDT for 5 counties in Illinois; 32 counties in Iowa; 62 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 13, 2016, 11:14 AM CDT (16:14 UTC)
Expired
Jul 13, 2016, 4:38 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 99 counties

Appanoose County, IA, Benton County, IA, Cedar County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Henry County, IA, Iowa County, IA, Jasper County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Lucas County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Muscatine County, IA, Polk County, IA, Poweshiek County, IA, Story County, IA, Tama County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Adams County, IL, Brown County, IL, Calhoun County, IL, Hancock County, IL, Pike County, IL, Adair County, MO, Audrain County, MO, Benton County, MO, Boone County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cedar County, MO, Chariton County, MO, City of Saint Louis, MO, Clark County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dallas County, MO, Daviess County, MO, Franklin County, MO, Gasconade County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jefferson County, MO, Johnson County, MO, Knox County, MO, Laclede County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, St. Clair County, MO, Sullivan County, MO, Warren County, MO, Washington County, MO

The radar

The Des Moines radar (KDMX), 173 km from the middle of the area, began a volume at 16:12 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 13, 11:27 AM CDTSevere Thunderstorm WarningEAXCarroll, Cass, Jackson, Johnson, Lafayette, Pettis and 2 more48 min
Jul 13, 11:58 AM CDTSevere Thunderstorm WarningEAXCarroll, Chariton, Cooper, Howard, Johnson, Lafayette and 3 more62 min
Jul 13, 12:10 PM CDTFlash Flood WarningEAXCarroll, Lafayette, Saline6 hr
Jul 13, 12:15 PM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Dade, Hickory, Polk, St. Clair and 1 more60 min
Jul 13, 12:18 PM CDTSevere Thunderstorm WarningSGFBenton, Camden, Morgan, St. Clair57 min
Jul 13, 12:33 PM CDTFlash Flood WarningEAXChariton, Howard, Randolph6 hr
Jul 13, 12:58 PM CDTSevere Thunderstorm WarningEAXChariton, Cooper, Howard, Randolph32 min
Jul 13, 1:14 PM CDTSevere Thunderstorm WarningSGFBenton, Camden, Dallas, Hickory, Laclede, Maries and 3 more61 min
Jul 13, 1:21 PM CDTSevere Thunderstorm WarningDMXMahaska, Marion28 min
Jul 13, 1:28 PM CDTSevere Thunderstorm WarningDVNIowa, Keokuk47 min
Jul 13, 1:40 PM CDTSevere Thunderstorm WarningLSXPike50 min
Jul 13, 1:59 PM CDTSevere Thunderstorm WarningSGFCamden, Dent, Laclede, Maries, Miller, Phelps and 1 more61 min
Jul 13, 2:01 PM CDTSevere Thunderstorm WarningDVNCedar, Iowa, Johnson, Louisa, Muscatine, Washington59 min
Jul 13, 2:06 PM CDTSevere Thunderstorm WarningLSXAdams, Calhoun, Greene, Jersey, Macoupin, Madison and 3 more54 min
Jul 13, 2:21 PM CDTSevere Thunderstorm WarningLSXAdams, Brown, Pike54 min
Jul 13, 2:22 PM CDTSevere Thunderstorm WarningDVNHenry, Jefferson53 min
Jul 13, 2:33 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Jefferson, Washington57 min
Jul 13, 2:45 PM CDTSevere Thunderstorm WarningDVNLouisa, Muscatine60 min
Jul 13, 2:50 PM CDTSevere Thunderstorm WarningDVNHancock, McDonough55 min
Jul 13, 2:58 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more62 min
Jul 13, 3:13 PM CDTSevere Thunderstorm WarningLSXIron, Jefferson, Reynolds, Sainte Genevieve, Saint Francois47 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 4.2 hours before the alert went out and 226 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.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2016-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 834 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2016-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
834 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
940 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 2:03 PM CDTMesoscale DiscussionSPCClark, Crawford, Edgar, Vermilion87 min
Jul 13, 2:10 PM CDTMesoscale DiscussionSPCBond, Bureau, Cass, Christian, Clinton, DeWitt and 29 more65 min
Jul 13, 2:37 PM CDTSevere Thunderstorm WatchSPCBond, Bureau, Cass, Champaign, Christian, Clark and 76 more5 hr
Jul 13, 5:08 PM CDTMesoscale DiscussionSPCAlexander, Champaign, Christian, Clark, Clay, Clinton and 43 more2 hr
Jul 13, 7:34 AM CDTMesoscale DiscussionSPCBuena Vista, Cerro Gordo, Cherokee, Chickasaw, Clay, Dickinson and 16 more2 hr
Jul 13, 10:33 AM CDTMesoscale DiscussionSPCAppanoose, Clarke, Davis, Decatur, Jasper, Jefferson and 13 more117 min
Jul 13, 8:07 AM CDTSevere Thunderstorm WatchSPCAndrew, Bates, Buchanan, Cass, Clay, Clinton and 5 more5 hr
Jul 13, 6:57 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 12 more3 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2016Severe Thunderstorm Watches in Iowa, 2016Severe Thunderstorm Watches in Illinois, 2016Every severe thunderstorm watch in 2016

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.