Alert archive / Iowa / Tornado Warnings in 2002

Tornado Warning 16, NWS Omaha, NE

July 26, 2002Fremont County, Iowa

NWS Omaha, NE issued this tornado warning at Jul 26, 2002, 7:26 PM CDT for Fremont County, Iowa. It was in force for 34 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 26, 2002, 7:26 PM CDT (00:26 UTC)
Expired: Jul 26, 2002, 8:00 PM CDT
In force: 34 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Fremont County, IA

The radar

The Omaha radar (KOAX), 83 km from the middle of the area, began a volume at 00:28 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
Jul 26, 5:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.4 hours before the alert went out and 83 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1831 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

453 
WFUS53 KOAX 270026
TOROMA
IAC071-270100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
726 PM CDT FRI JUL 26 2002

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

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

* UNTIL 800 PM CDT

* AT 723 PM CDT...RADAR INDICATED A SEVERE STORM WITH A DEVELOPING
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 7 MILES
  SOUTHWEST OF THURMAN...OR ABOUT 37 MILES SOUTH OF OMAHA...MOVING
  EAST AT 30 MPH.

* SOME LOCATIONS AFFECTED...
  SIDNEY
  RIVERTON
  RANDOLPH
  FARRAGUT
  IMOGENE

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.

THIS REPLACES THE SEVERE THUNDERSTORM WARNING FOR FREMONT COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FRIDAY EVENING
FOR SOUTHWEST IOWA AND SOUTHEASTERN NEBRASKA.

LAT...LON 4082 9594 4064 9590 4068 9534 4090 9538

FOBERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 7:16 PM CDT	Severe Thunderstorm Warning	OAX	Fremont	44 min
Jul 26, 7:22 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	23 min
Jul 26, 7:57 PM CDT	Tornado Warning	OAX	Fremont, Page	33 min
Jul 26, 8:18 PM CDT	Severe Thunderstorm Warning	OAX	Pottawattamie	27 min
Jul 26, 8:30 PM CDT	Severe Thunderstorm Warning	OAX	Page	30 min

Nearby

Tornado Warnings in Iowa, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.