Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 42, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 31, 1996, 5:39 PM MDT for Morgan County, Washington County, Colorado. It was in force for 66 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 31, 1996, 5:39 PM MDT (23:39 UTC)
- Expired
- May 31, 1996, 6:45 PM MDT
- In force
- 66 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Morgan County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 96 km from the middle of the area, began a volume at 23:47 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 31, 6:05 PM MDT | Hail 0.75 | Adena, CO | |
| May 31, 6:31 PM MDT | Hail 0.75 | Woodrow, CO |
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, 11.7 hours before the alert went out and 36 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
- 26 J/kg
- Mixed-layer CIN
- -218 J/kg
- Mixed-layer LCL
- 1241 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 31, 12:31 PM MDT, 5 hours 8 minutes before
COZ038>050-311915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1230 PM MDT FRI MAY 31 1996 ...THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF ELBERT COUNTY EARLY THIS AFTERNOON... AT 1225 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED DEVELOPING THUNDERSTORMS FROM SOUTHWEST OF ELBERT TO SOUTH OF MATHESON. THESE STORMS MAY PRODUCE HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 15 MPH. KLEYLA
Special weather statement, May 31, 1:08 PM MDT, 4 hours 31 minutes before
COZ038>050-312000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 105 PM MDT FRI MAY 31 1996 ...SCATTERED THUNDERSTORMS CONTINUE TO DEVELOP OVER ELBERT AND SOUTHWESTERN LINCOLN COUNTIES... AT 100 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED SCATTERED THUNDERSTORMS DEVELOPING FROM SOUTHEAST OF CASTLE ROCK TO KIOWA EXTENDING SOUTHEAST TO WEST OF KARVAL. THESE STORMS MAY PRODUCE BRIEF HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 15 MPH. KLEYLA
Special weather statement, May 31, 1:52 PM MDT, 3 hours 47 minutes before
COZ038>050-312030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 150 PM MDT FRI MAY 31 1996 ...SCATTERED THUNDERSTORMS CONTINUE OVER ELBERT AND WESTERN LINCOLN COUNTIES... AT 145 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED SCATTERED THUNDERSTORMS EXTENDING FROM SOUTH OF AGATE TO 10 MILES WEST OF HUGO TO 15 MILES WEST OF KARVAL. THESE STORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...HAIL...GUSTY WINDS ALONG WITH DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 15 MPH. KLEYLA
Special weather statement, May 31, 3:21 PM MDT, 2 hours 18 minutes before
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</html>Special weather statement, May 31, 4:23 PM MDT, 1 hour 16 minutes before
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</html>The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 6:15 PM MDT | Tornado Warning | BOU | Washington | 30 min |
| May 30, 6:26 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 64 min |
| May 30, 6:45 PM MDT | Tornado Warning | BOU | Washington | 45 min |
| May 30, 7:15 PM MDT | Tornado Warning | BOU | Lincoln | 30 min |
| May 30, 7:31 PM MDT | Tornado Warning | BOU | Washington | 29 min |
| May 30, 7:46 PM MDT | Tornado Warning | BOU | Lincoln | 29 min |
| May 30, 7:52 PM MDT | Tornado Warning | BOU | Washington | 38 min |
| May 30, 7:52 PM MDT | Tornado Warning | BOU | Elbert | 38 min |
| May 30, 8:15 PM MDT | Tornado Warning | BOU | Lincoln | 30 min |
| May 30, 8:37 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 68 min |
| May 30, 8:50 PM MDT | Tornado Warning | BOU | Lincoln | 40 min |
| May 30, 9:12 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 48 min |
| May 30, 9:24 PM MDT | Tornado Warning | BOU | Washington | 36 min |
| May 30, 9:49 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 41 min |
| May 31, 2:17 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 43 min |
| May 31, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 60 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1996Every severe thunderstorm warning in 1996
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.