Alert archive / Nebraska / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 500

July 3, 200118 counties in Iowa; Worth County, Missouri; 39 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 3, 2001, 1:00 AM CDT for 18 counties in Iowa; Worth County, Missouri; 39 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 3, 2001, 1:00 AM CDT (06:00 UTC)
Expired
Jul 3, 2001, 6:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 58 counties

Adair County, IA, Adams County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Crawford County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Taylor County, IA, Woodbury County, IA, Worth County, MO, Antelope County, NE, Blaine County, NE, Boone County, NE, Brown County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Garfield County, NE, Greeley County, NE, Holt County, NE, Howard County, NE, Keya Paha County, NE, Knox County, NE, Lancaster County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 3, 1:26 AM CDTSevere Thunderstorm WarningOAXAntelope49 min
Jul 3, 1:49 AM CDTSevere Thunderstorm WarningOAXMonona26 min
Jul 3, 2:03 AM CDTSevere Thunderstorm WarningOAXMadison42 min
Jul 3, 2:23 AM CDTSevere Thunderstorm WarningOAXPlatte, Stanton67 min
Jul 3, 2:48 AM CDTSevere Thunderstorm WarningOAXColfax57 min
Jul 3, 3:37 AM CDTSevere Thunderstorm WarningOAXDouglas, Sarpy38 min
Jul 3, 3:49 AM CDTSevere Thunderstorm WarningOAXMadison, Platte41 min
Jul 3, 4:41 AM CDTSevere Thunderstorm WarningOAXCass49 min

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.0 hours before the alert went out and 145 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, Omaha, NE at 00:00Z on 2001-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2777 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, Omaha, NE at 00:00Z on 2001-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.193958Sfc1 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
2777 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.0

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.

IssuedProductOfficeCountiesLasted
Jul 2, 10:45 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 25 more5 hr
Jul 3, 4:00 PM CDTTornado WatchSPCAdair, Adams, Appanoose, Audubon, Cass, Clarke and 32 more6 hr
Jul 2, 8:00 PM CDTSevere Thunderstorm WatchSPCAntelope, Blaine, Boone, Boyd, Brown, Butler and 32 more5 hr

Nearby

Severe Thunderstorm Watches in Nebraska, 2001Severe Thunderstorm Watches in Iowa, 2001Severe Thunderstorm Watches in Missouri, 2001Every severe thunderstorm watch in 2001

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.