Alert archive / Colorado / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 21, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 25, 2006, 9:13 PM MDT for Weld County, Colorado. It was in force for 47 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 25, 2006, 9:13 PM MDT (03:13 UTC)
- Expired
- May 25, 2006, 10:00 PM MDT
- In force
- 47 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Weld County, CO
The radar
The Cheyenne radar (KCYS), 85 km from the middle of the area, began a volume at 03:12 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 |
|---|---|---|---|
| May 25, 9:28 PM MDT | TSTM WND GST 60 | 14 E Grover, CO | DAVIS WEATHER INSTRUMENT MEASUREMENT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.2 hours before the alert went out and 288 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
- 3058 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KBOU 260315 SVRBOU COC123-260400- /O.NEW.KBOU.SV.W.0021.060526T0313Z-060526T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DENVER CO 913 PM MDT THU MAY 25 2006 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN WELD COUNTY IN NORTHEAST COLORADO * UNTIL 1000 PM MDT * AT 913 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 8 MILES SOUTH OF KEOTA...OR ABOUT 26 MILES NORTHWEST OF FORT MORGAN... MOVING NORTHEAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STONEHAM... PAWNEE BUTTES...NEW RAYMER AND KEOTA. THIS WARNING REPLACES THE EARLIER WARNING FOR CENTRAL WELD COUNTY ISSUED AT 834 PM. THIS STORM HAS HAD A HISTORY OF STRONG WINDS UP TO 70 MPH. IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN. LAT...LON 4053 10420 4053 10364 4096 10363 4098 10423 $$ SWE
2 follow-up statements
000 WWUS55 KBOU 260342 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 941 PM MDT THU MAY 25 2006 COC123-260400- /O.CON.KBOU.SV.W.0021.000000T0000Z-060526T0400Z/ WELD CO- 941 PM MDT THU MAY 25 2006 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM MDT FOR NORTHEASTERN WELD COUNTY... AT 941 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 4 MILES EAST OF PAWNEE BUTTES...OR ABOUT 38 MILES NORTH OF FORT MORGAN...MOVING NORTHEAST AT 35 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STONEHAM...PAWNEE BUTTES...NEW RAYMER AND KEOTA. THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS UP TO 70 MPH. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS LAT...LON 4053 10420 4053 10364 4096 10363 4098 10423 $$ SWE
000 WWUS55 KBOU 260359 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 959 PM MDT THU MAY 25 2006 COC123-260409- /O.EXP.KBOU.SV.W.0021.000000T0000Z-060526T0400Z/ WELD CO- 959 PM MDT THU MAY 25 2006 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WELD COUNTY EXPIRED AT 1000 PM MDT... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE SEVERE WEATHER. BRIEF HEAVY RAIN AND WIND GUSTS TO 40 MPH CAN STILL BE EXPECTED ACROSS NORTHEAST WELD COUNTY. LAT...LON 4053 10420 4053 10364 4096 10363 4098 10423 $$ SWE
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 7:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 66 min |
| May 25, 8:34 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 41 min |
| May 26, 4:10 AM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more | 17 hr |
| May 26, 2:21 PM MDT | Tornado Warning | BOU | Elbert | 39 min |
| May 26, 3:00 PM MDT | Tornado Warning | BOU | Elbert | 45 min |
| May 26, 3:43 PM MDT | Fire Weather Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 15 more | 12 hr |
Nearby
Severe Thunderstorm Warnings in Colorado, 2006Every severe thunderstorm warning in 2006
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.