Alert archive / Colorado / Tornado Warnings in 2010
Tornado Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 15, 2010, 1:56 PM MDT for Adams County, Morgan County, Weld County, Colorado. It was in force for 18 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
- May 15, 2010, 1:56 PM MDT (19:56 UTC)
- Expired
- May 15, 2010, 2:14 PM MDT
- In force
- 18 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
Counties Adams County, CO, Morgan County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 40 km from the middle of the area, began a volume at 19:56 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.9 hours before the alert went out and 80 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 679 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
751 WFUS55 KBOU 151956 TORBOU COC001-087-123-152030- /O.NEW.KBOU.TO.W.0013.100515T1956Z-100515T2030Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 156 PM MDT SAT MAY 15 2010 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... EXTREME SOUTHWESTERN MORGAN COUNTY IN NORTHEAST COLORADO NORTH CENTRAL ADAMS COUNTY IN NORTHEAST COLORADO EXTREME SOUTH CENTRAL WELD COUNTY IN NORTHEAST COLORADO * UNTIL 230 PM MDT * AT 156 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER NORTH CENTRAL ADAMS COUNTY...OR 29 MILES SOUTHWEST OF FORT MORGAN. THIS STORM WAS MOVING NORTHEAST AT 5 MPH. * THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF THE WARNED COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4006 10415 3994 10398 3990 10421 3999 10428 TIME...MOT...LOC 1956Z 242DEG 5KT 3997 10418 $$
1 follow-up statement
521 WWUS55 KBOU 152014 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 214 PM MDT SAT MAY 15 2010 COC001-087-123-152024- /O.CAN.KBOU.TO.W.0013.000000T0000Z-100515T2030Z/ MORGAN CO-ADAMS CO-WELD CO- 214 PM MDT SAT MAY 15 2010 ...THE TORNADO WARNING FOR EXTREME SOUTH CENTRAL WELD...NORTH CENTRAL ADAMS AND EXTREME SOUTHWESTERN MORGAN COUNTIES IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE SEVERE WEATHER. LAT...LON 4006 10415 3994 10398 3990 10421 3999 10428 TIME...MOT...LOC 2014Z 242DEG 5KT 3998 10415 $$ KRIEDERMAN
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 12:24 PM MDT | Special Weather Statement | BOU | Arapahoe | 36 min |
| May 15, 2:00 PM MDT | Tornado Warning | BOU | Weld | 30 min |
| May 15, 2:00 PM MDT | Tornado Warning | BOU | Weld | 30 min |
| May 15, 2:28 PM MDT | Tornado Warning | BOU | Weld | 47 min |
| May 15, 3:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
Nearby
Tornado Warnings in Colorado, 2010Every tornado warning in 2010Tornadoes in 2010
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.