Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 8, NWS Omaha, NE

May 13, 2003Madison County, Nebraska

NWS Omaha, NE issued this tornado warning at May 13, 2003, 4:55 PM CDT for Madison County, Nebraska. It was in force for 35 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: May 13, 2003, 4:55 PM CDT (21:55 UTC)
Expired: May 13, 2003, 5:30 PM CDT
In force: 35 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Madison County, NE

The radar

The Omaha radar (KOAX), 123 km from the middle of the area, began a volume at 21:58 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.

Issued	Product	Office	Lasted
May 13, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.9 hours before the alert went out and 276 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: 212 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 1567 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

742 
WFUS53 KOAX 132155
TOROAX
NEC119-132230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
455 PM CDT TUE MAY 13 2003

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  MADISON COUNTY IN NORTHEAST NEBRASKA
  THIS INCLUDES THE CITY OF NORFOLK

* UNTIL 530 PM CDT

* AT 453 PM CDT...RADAR INDICATED A SEVERE STORM WITH A POSSIBLE
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 3 MILES
  NORTH OF BATTLE CREEK...OR ABOUT 10 MILES WEST OF NORFOLK...MOVING
  EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NORFOLK

TAKE COVER NOW IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST
LEVEL OF A STRONG BUILDING. CARS AND MOBILE HOMES SHOULD BE
ABANDONED. GO TO A SAFE PLACE NOW.

LAT...LON 4208 9738 4193 9738 4197 9771 4208 9769

$$

ERVIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 2:46 PM CDT	Severe Thunderstorm Warning	OAX	Antelope	44 min
May 13, 3:01 PM CDT	Severe Thunderstorm Warning	OAX	Knox	44 min
May 13, 3:37 PM CDT	Severe Thunderstorm Warning	OAX	Antelope, Knox	53 min
May 13, 4:11 PM CDT	Severe Thunderstorm Warning	OAX	Pierce	49 min
May 13, 4:17 PM CDT	Flash Flood Warning	OAX	Knox	3 hr
May 13, 4:28 PM CDT	Severe Thunderstorm Warning	OAX	Madison	62 min
May 13, 4:33 PM CDT	Severe Thunderstorm Warning	OAX	Boone	57 min
May 13, 4:39 PM CDT	Severe Thunderstorm Warning	OAX	Antelope	36 min
May 13, 5:10 PM CDT	Severe Thunderstorm Warning	OAX	Pierce, Stanton, Wayne	65 min
May 13, 5:19 PM CDT	Tornado Warning	OAX	Stanton	41 min
May 13, 5:25 PM CDT	Severe Thunderstorm Warning	OAX	Boone	35 min
May 13, 5:25 PM CDT	Tornado Warning	OAX	Madison	50 min
May 13, 5:33 PM CDT	Severe Thunderstorm Warning	OAX	Cedar	42 min
May 13, 5:34 PM CDT	Severe Thunderstorm Warning	OAX	Platte	56 min
May 13, 6:01 PM CDT	Severe Thunderstorm Warning	OAX	Colfax	59 min
May 13, 6:08 PM CDT	Severe Thunderstorm Warning	OAX	Cuming, Dodge	67 min
May 13, 6:21 PM CDT	Severe Thunderstorm Warning	OAX	Butler	54 min
May 13, 6:52 PM CDT	Severe Thunderstorm Warning	OAX	Washington	53 min

Nearby

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