Alert archive / Colorado / Tornado Warnings in 2014
Tornado Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 7, 2014, 3:27 PM MDT for Weld County, Colorado. It was in force for 33 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 7, 2014, 3:27 PM MDT (21:27 UTC)
- Expired
- May 7, 2014, 4:00 PM MDT
- In force
- 33 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
County Weld County, CO
The radar
The Denver radar (KFTG), 56 km from the middle of the area, began a volume at 21:29 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 7, 3:55 PM MDT | TSTM WND GST 70 | Greeley, CO | GREELEY AIRPORT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 7, 12:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 9.5 hours before the alert went out and 131 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
- 97 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
784
WFUS55 KBOU 072127
TORBOU
COC123-072200-
/O.NEW.KBOU.TO.W.0004.140507T2127Z-140507T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
327 PM MDT WED MAY 7 2014
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN WELD COUNTY IN NORTHEAST COLORADO...
* UNTIL 400 PM MDT
* AT 326 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR LA SALLE...OR 8 MILES SOUTH OF GREELEY...
MOVING NORTHEAST AT 20 MPH.
HAZARD...TORNADO AND PING PONG BALL 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.
* LOCATIONS IMPACTED INCLUDE...
SOUTHEASTERN GREELEY...EVANS...MILLIKEN...LA SALLE...KERSEY...
GILCREST AND MILTON RESERVOIR.
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 IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4014 10471 4033 10486 4051 10462 4031 10444
TIME...MOT...LOC 2126Z 231DEG 16KT 4030 10470
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
RJK3 follow-up statements
733
WWUS55 KBOU 072135
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
335 PM MDT WED MAY 7 2014
COC123-072200-
/O.CON.KBOU.TO.W.0004.000000T0000Z-140507T2200Z/
WELD CO-
335 PM MDT WED MAY 7 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR
SOUTHWESTERN WELD COUNTY...
AT 335 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR LA SALLE...OR 7 MILES SOUTHEAST OF GREELEY...MOVING
NORTHEAST AT 20 MPH.
HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.
SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
LOCATIONS IMPACTED INCLUDE...
SOUTHEASTERN GREELEY...EVANS...MILLIKEN...LA SALLE...KERSEY...
GILCREST AND MILTON RESERVOIR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4014 10471 4033 10486 4051 10462 4031 10444
TIME...MOT...LOC 2135Z 229DEG 17KT 4033 10466
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
RPK841
WWUS55 KBOU 072143
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
343 PM MDT WED MAY 7 2014
COC123-072200-
/O.CON.KBOU.TO.W.0004.000000T0000Z-140507T2200Z/
WELD CO-
343 PM MDT WED MAY 7 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR
SOUTHWESTERN WELD COUNTY...
AT 343 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR KERSEY...OR 8 MILES SOUTHEAST OF GREELEY...MOVING
NORTHEAST AT 20 MPH.
HAZARD...TORNADO AND PING PONG BALL 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.
LOCATIONS IMPACTED INCLUDE...
SOUTHEASTERN GREELEY...EVANS...MILLIKEN...LA SALLE...KERSEY...
GILCREST AND MILTON RESERVOIR.
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 IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4014 10471 4033 10486 4051 10462 4031 10444
TIME...MOT...LOC 2143Z 234DEG 16KT 4035 10461
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
RPK316
WWUS55 KBOU 072159
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
359 PM MDT WED MAY 7 2014
COC123-072206-
/O.EXP.KBOU.TO.W.0004.000000T0000Z-140507T2200Z/
WELD CO-
359 PM MDT WED MAY 7 2014
...THE TORNADO WARNING FOR SOUTHWESTERN WELD COUNTY WILL EXPIRE AT
400 PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER LARGE HAIL
IS STILL POSSIBLE WITH THIS THUNDERSTORM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT
WEDNESDAY EVENING FOR NORTHEAST COLORADO.
LAT...LON 4014 10471 4033 10486 4051 10462 4031 10444
TIME...MOT...LOC 2152Z 231DEG 16KT 4035 10461
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 8:46 PM MDT | Special Weather Statement | BOU | Weld | 29 min |
| May 6, 11:23 PM MDT | Special Weather Statement | BOU | Weld | 52 min |
| May 6, 11:49 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 41 min |
| May 7, 1:31 PM MDT | Special Weather Statement | BOU | Larimer | 44 min |
| May 7, 1:45 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| May 7, 1:51 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 7, 1:51 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 7, 2:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Washington | 49 min |
| May 7, 2:32 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| May 7, 2:33 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 27 min |
| May 7, 2:39 PM MDT | Tornado Warning | BOU | Weld | 36 min |
| May 7, 2:56 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 34 min |
| May 7, 3:00 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 45 min |
| May 7, 3:01 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 44 min |
| May 7, 3:04 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 41 min |
| May 7, 3:30 PM MDT | Tornado Warning | BOU | Washington | 45 min |
| May 7, 3:57 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 48 min |
| May 7, 4:00 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| May 7, 4:15 PM MDT | Tornado Warning | BOU | Washington | 45 min |
| May 7, 4:26 PM MDT | Tornado Warning | BOU | Weld | 34 min |
| May 7, 4:50 PM MDT | Tornado Warning | BOU | Logan, Phillips, Washington | 40 min |
| May 7, 4:52 PM MDT | Tornado Warning | BOU | Phillips | 23 min |
| May 7, 4:57 PM MDT | Tornado Warning | BOU | Logan, Sedgwick | 48 min |
| May 7, 5:10 PM MDT | Tornado Warning | BOU | Phillips | 35 min |
| May 7, 5:17 PM MDT | Special Weather Statement | BOU | Broomfield | 43 min |
| May 7, 5:24 PM MDT | Special Weather Statement | BOU | Broomfield | 36 min |
| May 7, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 45 min |
| May 7, 5:30 PM MDT | Tornado Warning | BOU | Logan, Phillips | 30 min |
| May 7, 5:38 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 37 min |
Nearby
Tornado Warnings in Colorado, 2014Every tornado warning in 2014Tornadoes in 2014
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.