Alert archive / Iowa / Tornado Warnings in 2000

Tornado Warning 30, NWS Omaha, NE

June 13, 2000Montgomery County, Iowa

NWS Omaha, NE issued this tornado warning at Jun 13, 2000, 4:37 PM CDT for Montgomery County, Iowa. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 13, 2000, 4:37 PM CDT (21:37 UTC)
Expired: Jun 13, 2000, 5:00 PM CDT
In force: 23 min
Issued by: NWS Omaha, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Montgomery County, IA

The radar

The Omaha radar (KOAX), 103 km from the middle of the area, began a volume at 21:39 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
Jun 13, 2:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.6 hours before the alert went out and 103 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

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

000 
WFUS53 KOAX 132139
TOROMA
IAC137-132200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
437 PM CDT TUE JUN 13 2000

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  MONTGOMERY COUNTY IN SOUTHWEST IOWA

* UNTIL 500 PM CDT

* AT 434 PM CDT...RADAR INDICATED AND TRAINED SPOTTERS CONFIRM A
  TORNADO 3 MILES SOUTH OF RED OAK...OR ABOUT 45 MILES SOUTHEAST OF
  OMAHA...MOVING NORTHEAST AT 25 MPH. ADDITIONAL TORNADOES WERE
  REPORTED NEAR COBURN NEAR THE MONTGOMERY PAGE COUNTY LINE. 

SOME LOCATIONS IN THE PATH OF THE TORNADO THROUGH 500 PM CDT
  INCLUDE...STANTON...

THIS IS A DANGEROUS SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF
THIS TORNADO GO BELOW GROUND LEVEL IF POSSIBLE. OTHERWISE GO TO A
SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF THE BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT TUESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.

LAT...LON 4101 9539 4086 9527 4095 9493 4117 9508

FOBERT

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 2:02 PM CDT	Tornado Warning	OAX	Pottawattamie	43 min
Jun 13, 2:28 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	62 min
Jun 13, 2:45 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	45 min
Jun 13, 3:17 PM CDT	Tornado Warning	OAX	Mills	28 min
Jun 13, 3:20 PM CDT	Tornado Warning	OAX	Harrison, Shelby	40 min
Jun 13, 3:30 PM CDT	Tornado Warning	OAX	Fremont	45 min
Jun 13, 3:45 PM CDT	Tornado Warning	OAX	Mills	30 min
Jun 13, 4:11 PM CDT	Tornado Warning	OAX	Mills, Montgomery, Pottawattamie	34 min
Jun 13, 4:11 PM CDT	Tornado Warning	OAX	Fremont, Page	34 min
Jun 13, 4:44 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	46 min
Jun 13, 5:08 PM CDT	Tornado Warning	OAX	Montgomery	37 min
Jun 13, 5:21 PM CDT	Severe Thunderstorm Warning	OAX	Harrison	54 min
Jun 13, 5:33 PM CDT	Severe Thunderstorm Warning	OAX	Fremont, Page	57 min
Jun 13, 5:52 PM CDT	Flash Flood Warning	OAX	Mills	4 hr
Jun 13, 6:18 PM CDT	Severe Thunderstorm Warning	OAX	Mills, Pottawattamie	57 min

Nearby

Tornado Warnings in Iowa, 2000 Every tornado warning in 2000 Tornadoes 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.