Alert archive / Iowa / Tornado Warnings in 2008
Tornado Warning 39, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Jun 11, 2008, 6:57 PM CDT for Harrison County, Monona 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 as issued.
The facts
- Issued
- Jun 11, 2008, 6:57 PM CDT (23:57 UTC)
- Expired
- Jun 11, 2008, 7:20 PM CDT
- In force
- 23 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
Counties Harrison County, IA, Monona County, IA
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 11, 2:52 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 12.0 hours before the alert went out and 81 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.
- Mixed-layer CAPE
- 1784 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 548 m²/s²
- 0-3 km storm-relative helicity
- 862 m²/s²
- Significant tornado parameter
- 4.9
- Supercell composite
- 43.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KOAX 112357 TOROAX IAC085-133-120030- /O.NEW.KOAX.TO.W.0039.080611T2357Z-080612T0030Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 657 PM CDT WED JUN 11 2008 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A * TORNADO WARNING FOR... EXTREME NORTH CENTRAL HARRISON COUNTY IN SOUTHWEST IOWA... SOUTHEASTERN MONONA COUNTY IN WEST CENTRAL IOWA... * UNTIL 730 PM CDT. * AT 655 PM CDT...TRAINED STORM SPOTTERS REPORTED A TORNADO. RADAR INDICATED THE MOST DANGEROUS PART OF THE STORM NEAR MOORHEAD...OR 45 MILES NORTH OF OMAHA...MOVING EAST AT 46 MPH. * LOCATIONS IMPACTED INCLUDE... SOLDIER AND MOORHEAD... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR A PIECE OF STURDY FURNITURE. IF A BASEMENT IS NOT AVAILABLE...SEEK SHELTER ON THE LOWEST LEVEL OF THE BUILDING. GO TO AN INTERIOR ROOM OR HALLWAY. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA. LAT...LON 4186 9568 4186 9598 4193 9594 4202 9567 TIME...MOT...LOC 2357Z 259DEG 40KT 4191 9582 $$ NIETFELD
2 follow-up statements
000
WWUS53 KOAX 120006
SVSOAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
706 PM CDT WED JUN 11 2008
IAC085-120016-
/O.CAN.KOAX.TO.W.0039.000000T0000Z-080612T0030Z/
HARRISON IA-
706 PM CDT WED JUN 11 2008
...THE TORNADO WARNING FOR EXTREME NORTH CENTRAL HARRISON COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.
LAT...LON 4191 9568 4186 9568 4186 9585 4194 9589
4202 9567
TIME...MOT...LOC 0006Z 259DEG 40KT 4193 9569
$$
IAC133-120030-
/O.CON.KOAX.TO.W.0039.000000T0000Z-080612T0030Z/
MONONA IA-
706 PM CDT WED JUN 11 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN MONONA COUNTY...
AT 704 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AND
STORM SPOTTERS CONFIRM A LARGE AND EXTREMELY DANGEROUS TORNADO AT
703 PM 2 SOUTHWEST OF MOORHEAD. THIS TORNADO WAS LOCATED 7 MILES
EAST OF MOORHEAD...OR 48 MILES NORTH OF OMAHA...MOVING EAST AT 40
MPH.
THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
INDICATED COUNTY.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.
LAT...LON 4191 9568 4186 9568 4186 9585 4194 9589
4202 9567
TIME...MOT...LOC 0006Z 259DEG 40KT 4193 9569
$$
NIETFELD000
WWUS53 KOAX 120020
SVSOAX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
720 PM CDT WED JUN 11 2008
IAC133-120030-
/O.CAN.KOAX.TO.W.0039.000000T0000Z-080612T0030Z/
MONONA IA-
720 PM CDT WED JUN 11 2008
...THE TORNADO WARNING FOR SOUTHEASTERN MONONA COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS EXITED THE WARNED AREA...
THUS THE WARNING WHICH WAS IN EFFECT HAS BEEN CANCELLED. HEAVY
RAIN...SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHWESTERN IOWA AND EASTERN NEBRASKA.
LAT...LON 4191 9568 4186 9568 4186 9585 4194 9589
4202 9567
TIME...MOT...LOC 0020Z 259DEG 40KT 4196 9548
$$
NIETFELDThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:37 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 38 min |
| Jun 11, 3:43 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 47 min |
| Jun 11, 4:17 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 43 min |
| Jun 11, 4:28 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 47 min |
| Jun 11, 4:44 AM CDT | Flash Flood Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 26 hr |
| Jun 11, 5:55 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 39 min |
| Jun 11, 6:26 AM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 10 hr |
| Jun 11, 6:59 AM CDT | Flash Flood Warning | OAX | Pottawattamie | 4 hr |
| Jun 11, 12:29 PM CDT | River Flood Warning | OAX | Harrison | 21 hr |
| Jun 11, 5:25 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 50 min |
| Jun 11, 6:08 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 37 min |
| Jun 11, 6:13 PM CDT | Flash Flood Warning | OAX | Monona | 3 hr |
| Jun 11, 6:13 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 47 min |
| Jun 11, 6:23 PM CDT | Tornado Warning | OAX | Harrison, Monona | 37 min |
| Jun 11, 6:27 PM CDT | Tornado Warning | OAX | Harrison, Pottawattamie | 63 min |
Nearby
Tornado Warnings in Iowa, 2008Every tornado warning in 2008Tornadoes in 2008
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.