Alert archive / Iowa / Tornado Warnings in 2019
Tornado Warning 21, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Oct 1, 2019, 3:02 PM CDT for Fremont County, Iowa. It was in force for 43 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
- Oct 1, 2019, 3:02 PM CDT (20:02 UTC)
- Expired
- Oct 1, 2019, 3:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Fremont County, IA
The radar
The Omaha radar (KOAX), 103 km from the middle of the area, began a volume at 20:01 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 |
|---|---|---|---|
| Oct 1, 2:45 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 8.0 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.
- Mixed-layer CAPE
- 389 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.7
The text
As transmitted.
263
WFUS53 KOAX 012002
TOROAX
IAC071-012045-
/O.NEW.KOAX.TO.W.0021.191001T2002Z-191001T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Omaha/Valley Nebraska
302 PM CDT Tue Oct 1 2019
The National Weather Service in Omaha has issued a
* Tornado Warning for...
Southeastern Fremont County in southwestern Iowa...
* Until 345 PM CDT.
* At 301 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southwest of Hamburg, or 20 miles northwest of
Tarkio, moving northeast at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Hamburg around 310 PM CDT.
Riverton around 325 PM CDT.
Farragut around 330 PM CDT.
This includes Interstate 29 near mile marker 1.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4058 9553 4058 9564 4059 9566 4058 9566
4058 9572 4059 9576 4082 9538 4073 9538
4072 9537 4064 9537
TIME...MOT...LOC 2001Z 230DEG 30KT 4056 9573
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
BLB2 follow-up statements
402
WWUS53 KOAX 012017
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
317 PM CDT Tue Oct 1 2019
IAC071-012045-
/O.CON.KOAX.TO.W.0021.000000T0000Z-191001T2045Z/
Fremont IA-
317 PM CDT Tue Oct 1 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR
SOUTHEASTERN FREMONT COUNTY...
At 316 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Riverton, or 16 miles northwest of Tarkio, moving
northeast at 40 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Farragut around 325 PM CDT.
Western Shenandoah around 335 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4058 9557 4061 9560 4067 9563 4082 9538
4073 9538 4072 9537 4064 9537
TIME...MOT...LOC 2016Z 238DEG 34KT 4064 9555
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
BLB295
WWUS53 KOAX 012037
SVSOAX
Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
337 PM CDT Tue Oct 1 2019
IAC071-012047-
/O.EXP.KOAX.TO.W.0021.000000T0000Z-191001T2045Z/
Fremont IA-
337 PM CDT Tue Oct 1 2019
...THE TORNADO WARNING FOR SOUTHEASTERN FREMONT COUNTY WILL EXPIRE AT
345 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
Iowa.
LAT...LON 4058 9557 4061 9560 4067 9563 4082 9538
4073 9538 4072 9537 4064 9537
TIME...MOT...LOC 2037Z 230DEG 30KT 4074 9539
$$
BLBThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 1, 2:50 PM CDT | Tornado Warning | OAX | Fremont, Mills, Montgomery, Page | 40 min |
| Oct 1, 3:12 PM CDT | Areal Flood Advisory | OAX | Pottawattamie | 3 hr |
| Oct 1, 3:25 PM CDT | Tornado Warning | OAX | Montgomery | 18 min |
| Oct 1, 3:29 PM CDT | Tornado Warning | OAX | Page | 32 min |
| Oct 1, 5:55 PM CDT | Special Weather Statement | OAX | Page | 35 min |
Nearby
Tornado Warnings in Iowa, 2019Every tornado warning in 2019Tornadoes in 2019
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.