Alert archive / Iowa / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 439

June 13, 2000Adams County, Hancock County, Pike County, Illinois; 46 counties in Iowa; 26 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jun 13, 2000, 11:45 AM CDT for Adams County, Hancock County, Pike County, Illinois; 46 counties in Iowa; 26 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Jun 13, 2000, 11:45 AM CDT (16:45 UTC)
Expired: Jun 13, 2000, 5:00 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 75 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Henry County, IA, Ida County, IA, Iowa County, IA, Jasper County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Shelby County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Webster County, IA, Adams County, IL, Hancock County, IL, Pike County, IL, Adair County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clark County, MO, Daviess County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Monroe County, MO, Pike County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 55 km from the middle of the area, began a volume at 16:47 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.

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jun 13, 11:50 AM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	25 min
Jun 13, 12:27 PM CDT	Severe Thunderstorm Warning	DMX	Lucas	33 min
Jun 13, 12:52 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell	38 min
Jun 13, 12:57 PM CDT	Severe Thunderstorm Warning	DMX	Polk	33 min
Jun 13, 1:00 PM CDT	Severe Thunderstorm Warning	DVN	Johnson, Louisa, Washington	45 min
Jun 13, 1:13 PM CDT	Severe Thunderstorm Warning	DMX	Story	47 min
Jun 13, 1:23 PM CDT	Severe Thunderstorm Warning	EAX	Daviess	37 min
Jun 13, 1:26 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon	49 min
Jun 13, 1:34 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Wright	41 min
Jun 13, 1:34 PM CDT	Severe Thunderstorm Warning	EAX	Chariton	26 min
Jun 13, 1:44 PM CDT	Severe Thunderstorm Warning	DMX	Marshall	31 min
Jun 13, 1:48 PM CDT	Severe Thunderstorm Warning	EAX	Schuyler	27 min
Jun 13, 2:03 PM CDT	Severe Thunderstorm Warning	LSX	Knox	57 min
Jun 13, 2:09 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Tama	36 min
Jun 13, 2:13 PM CDT	Severe Thunderstorm Warning	DMX	Davis, Wapello	32 min
Jun 13, 2:16 PM CDT	Severe Thunderstorm Warning	LSX	Shelby	44 min
Jun 13, 2:22 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson	53 min
Jun 13, 2:33 PM CDT	Severe Thunderstorm Warning	DVN	Clark, Scotland	42 min
Jun 13, 2:46 PM CDT	Severe Thunderstorm Warning	DVN	Washington	44 min
Jun 13, 3:20 PM CDT	Tornado Warning	OAX	Harrison, Shelby	40 min
Jun 13, 4:34 PM CDT	Severe Thunderstorm Warning	DMX	Cass	26 min

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 4.8 hours before the alert went out and 220 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 997 J/kg
Mixed-layer CIN: -254 J/kg
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 13, 2:15 PM CDT	Severe Thunderstorm Watch	SPC	Brown, Bureau, Carroll, Cass, Champaign, DeKalb and 38 more	6 hr
Jun 12, 11:00 PM CDT	Severe Thunderstorm Watch	SPC	Plymouth	5 hr
Jun 13, 2:00 PM CDT	Tornado Watch	SPC	Adair, Adams, Audubon, Boone, Calhoun, Carroll and 18 more	6 hr
Jun 13, 5:30 PM CDT	Tornado Watch	SPC	Adair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 41 more	7 hr

Nearby

Severe Thunderstorm Watches in Iowa, 2000 Severe Thunderstorm Watches in Missouri, 2000 Severe Thunderstorm Watches in Illinois, 2000 Every severe thunderstorm watch in 2000

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.