Alert archive / Colorado / Tornado Warnings in 2001
Tornado Warning 33, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 29, 2001, 2:58 PM MDT for Logan County, Colorado. It was in force for 42 min. 1 report came from 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, with what was reported inside it.
The facts
- Issued
- Jun 29, 2001, 2:58 PM MDT (20:58 UTC)
- Expired
- Jun 29, 2001, 3:40 PM MDT
- In force
- 42 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Logan County, CO
The radar
The Cheyenne radar (KCYS), 154 km from the middle of the area, began a volume at 20:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 29, 3:33 PM MDT | Tornado F0 | Padroni, CO | A small tornado touched down but did no damage. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.0 hours before the alert went out and 106 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
- 2 J/kg
- Mixed-layer CIN
- -338 J/kg
- Mixed-layer LCL
- 2994 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
184
WFUS55 KBOU 292100
TORDEN
COC075-292140-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
258 PM MDT FRI JUN 29 2001
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN LOGAN COUNTY IN NORTHEAST COLORADO
THIS INCLUDES THE CITY OF STERLING
* UNTIL 340 PM MDT
* AT 258 PM MDT...LAW ENFORCEMENT AND THE PUBLIC REPORTED SEVERAL SMALL
TORNADOES 8 MILES NEAR PEETZ...OR ABOUT 14 MILES SOUTH OF SIDNEY. THE
THUNDERSTORMS PRODUCING THESE WEAK TORNADOES WERE MOVING SOUTH AT 10
MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
STERLING...CROOK...FLEMING...ILIFF...PADRONI...PEETZ...PROCTOR AND
TWIN BUTTES.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 4081 10327 4063 10317 4065 10268 4100 10267
4099 10312
BAKERThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 12:25 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 35 min |
| Jun 29, 1:41 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 39 min |
| Jun 29, 2:15 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 45 min |
| Jun 29, 3:45 PM MDT | Tornado Warning | BOU | Logan | 30 min |
Nearby
Tornado Warnings in Colorado, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.