Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 33, NWS Omaha, NE

July 5, 2003Thurston County, Nebraska

NWS Omaha, NE issued this tornado warning at Jul 5, 2003, 10:24 PM CDT for Thurston County, Nebraska. It was in force for 51 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
Jul 5, 2003, 10:24 PM CDT (03:24 UTC)
Expired
Jul 5, 2003, 11:15 PM CDT
In force
51 min
Issued by
NWS Omaha, NE
Area
Counties, with a storm outline in the text

County Thurston County, NE

The radar

The Omaha radar (KOAX), 99 km from the middle of the area, began a volume at 03:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 5, 7:20 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.4 hours before the alert went out and 99 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 2003-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2840 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 2003-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 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
2840 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1471 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
1.8
Supercell composite
11.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

469 
WFUS53 KOAX 060324
TOROAX
NEC173-060415-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
1023 PM CDT SAT JUL 5 2003

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  THURSTON COUNTY IN NORTHEAST NEBRASKA

* UNTIL 1115 PM CDT

* AT 1018 PM CDT...RADAR INDICATED A SEVERE STORM WITH A POSSIBLE
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 5 MILES
  WEST OF THURSTON...OR ABOUT 30 MILES SOUTHWEST OF SIOUX CITY...
  MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WALTHILL...WINNEBAGO
  MACY

IF YOU ARE IN THE PATH OF A TORNADO...GO TO A BASEMENT. IF A BASEMENT
IS NOT AVAILABLE...TAKE COVER IN AN INTERIOR ROOM ON THE LOWEST LEVEL
OF YOUR HOME OR BUSINESS. AVOID WINDOWS.

LAT...LON 4227 9683 4208 9680 4204 9628 4228 9637

$$

MILLER

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 7:41 PM CDTSevere Thunderstorm WarningOAXKnox64 min
Jul 5, 8:33 PM CDTSevere Thunderstorm WarningOAXAntelope42 min
Jul 5, 8:43 PM CDTSevere Thunderstorm WarningOAXCedar, Pierce62 min
Jul 5, 8:46 PM CDTSevere Thunderstorm WarningOAXKnox44 min
Jul 5, 9:22 PM CDTSevere Thunderstorm WarningOAXAntelope38 min
Jul 5, 9:22 PM CDTSevere Thunderstorm WarningOAXWayne53 min
Jul 5, 9:45 PM CDTTornado WarningOAXWayne45 min
Jul 5, 9:47 PM CDTSevere Thunderstorm WarningOAXCedar, Pierce43 min
Jul 5, 9:53 PM CDTTornado WarningOAXAntelope37 min
Jul 5, 9:59 PM CDTSevere Thunderstorm WarningOAXMadison46 min
Jul 5, 10:11 PM CDTSevere Thunderstorm WarningOAXBoone49 min
Jul 5, 10:34 PM CDTSevere Thunderstorm WarningOAXStanton, Wayne41 min
Jul 5, 10:40 PM CDTSevere Thunderstorm WarningOAXPlatte35 min
Jul 5, 10:41 PM CDTSevere Thunderstorm WarningOAXCuming64 min
Jul 5, 10:45 PM CDTSevere Thunderstorm WarningOAXMadison45 min
Jul 5, 10:58 PM CDTFlash Flood WarningOAXWayne6 hr
Jul 5, 11:04 PM CDTSevere Thunderstorm WarningOAXColfax, Dodge56 min
Jul 5, 11:13 PM CDTSevere Thunderstorm WarningOAXBurt, Thurston62 min
Jul 5, 11:15 PM CDTFlash Flood WarningOAXThurston6 hr
Jul 5, 11:20 PM CDTSevere Thunderstorm WarningOAXButler, Saunders55 min
Jul 5, 11:23 PM CDTSevere Thunderstorm WarningOAXPlatte22 min
Jul 5, 11:27 PM CDTTornado WarningOAXBurt, Cuming48 min
Jul 5, 11:47 PM CDTSevere Thunderstorm WarningOAXLancaster, Seward58 min
Jul 5, 11:48 PM CDTSevere Thunderstorm WarningOAXDouglas, Washington57 min
Jul 5, 11:57 PM CDTSevere Thunderstorm WarningOAXDodge33 min
Jul 6, 12:07 AM CDTSevere Thunderstorm WarningOAXCass, Sarpy53 min
Jul 6, 12:12 AM CDTSevere Thunderstorm WarningOAXButler, Saunders48 min
Jul 6, 12:45 AM CDTSevere Thunderstorm WarningOAXDouglas15 min
Jul 6, 2:38 AM CDTSevere Thunderstorm WarningOAXBurt, Washington37 min

Nearby

Tornado Warnings in Nebraska, 2003Every tornado warning in 2003Tornadoes in 2003

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.