Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 233, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 1, 1996, 2:56 PM MDT for Logan County, Phillips County, Colorado. It was in force for 49 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
- Aug 1, 1996, 2:56 PM MDT (20:56 UTC)
- Expired
- Aug 1, 1996, 3:45 PM MDT
- In force
- 49 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Logan County, CO, Phillips County, CO
The radar
The Goodland radar (KGLD), 169 km from the middle of the area, began a volume at 20:59 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 |
|---|---|---|---|
| Aug 1, 3:08 PM MDT | Hail 1.75 | Fleming, CO | |
| Aug 1, 3:28 PM MDT | Hail 1 | Fleming, 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, 8.9 hours before the alert went out and 97 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
- 292 J/kg
- Mixed-layer CIN
- -247 J/kg
- Mixed-layer LCL
- 2092 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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
Local storm report, Aug 1, 9:04 AM MDT, 5 hours 52 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
900 AM MDT THU AUG 1 1996
...STORM REPORT FOR JULY 31 1996...
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0315 PM HUGO CO 1.75 INCH HAIL
07/31/96 LINCOLN
0328 PM HUGO CO 1.75 INCH HAIL
07/31/96 LINCOLN
0655 PM 4 NE LIMON CO .75 INCH HAIL
07/31/96 LINCOLN
0725 PM 10 E NUNN CO 1.5 INCH HAIL
07/31/96 WELD 60 MPH WINDS
0730 PM 7 E AULT CO 2.75 INCH HAIL
07/31/96 WELD
0745 PM GALETON CO 2.75 INCH HAIL
07/31/96 WELD CORN CROP DAMAGED...TREE LIMBS
DOWNED AND ROADS FLOODED
0757 PM 8 NE GREELEY CO TORNADO
07/31/96 WELD
0757 PM 6 E GALETON CO 1.00 INCH HAIL
07/31/96 WELD
0806 PM GILL CO TORNADO
07/31/96 WELD
0821 PM ROGGEN CO TORNADO
07/31/96 WELD
0832 PM 8 S KERSEY CO TORNADO
07/31/96 WELD
0840 PM 8 E KEENESBURG CO TORNADO
07/31/96 WELD
0850 PM 15 SE ROGGEN CO .75 INCH HAIL
07/31/96 WELD 60-80 MPH WINDS
0852 PM ROGGEN CO 1.75 INCH HAIL
07/31/96 WELD
0930 PM 3 E BYERS CO TORNADO
07/31/96 ARAPAHOE
0935 PM 10 NE BYERS CO TORNADO
07/31/96 ADAMS
0945 PM STRASBURG CO TORNADO
07/31/96 ADAMS
1009 PM 5 N DEERTRAIL CO TORNADO
07/31/96 ARAPAHOE
1030 PM 10 NNW LIMON CO .75 INCH HAIL
07/31/96 ELBERT/LINCOLN COUNTY LINE
1030 PM- 10 N LIMON CO 1.75 INCH HAIL
1100 PM LINCOLN 60 MPH WIND GUST...HAIL
07/31/96 BROKE WINDOW...DENTED METAL
SHED AND WIPED OUT A WHEAT
FIELD
1035 PM 6 N LIMON CO 1.75 INCH HAIL
07/31/96 LINCOLN
1035 PM 3 E GALETON CO .75 INCH HAIL
07/31/96 WELD
1037 PM LIMON CO .75 INCH HAIL
07/31/96 LINCOLN
1040 PM 6 N GENOA CO 2.75 INCH HAIL
07/31/96 LINCOLN 60 MPH WINDS
1044 PM LIMON CO 70 MPH WINDS
07/31/96 LINCOLN
1048 PM 5 E LIMON CO 1.00 INCH HAIL
07/31/96 LINCOLN 60 MPH WINDS
1123 PM 10 S HUGO CO 1.00 INCH HAIL
07/31/96 LINCOLN
1129 PM- 7 NE KARVAL CO 1.00 INCH HAIL
1X130 PM LINCOLN
07/31/96
1131 PM 15 S HUGO CO .75 INCH HAIL
07/31/96 LINCOLN
KLEYLA/FMCSpecial weather statement, Aug 1, 11:42 AM MDT, 3 hours 14 minutes before
COZ030-032>050-020600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER COLORADO 1145 AM MDT THU AUG 1 1996 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT GILPIN GRAND JACKSON JEFFERSON LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT WASHINGTON WELD SYNOPSIS: SEVERAL FACTORS FOR SEVERE WEATHER IN NORTHEASTERN COLORADO ARE IN PLACE AGAIN TODAY. LIKE YESTERDAY...THERE IS PLENTIFUL MOISTURE OVER THE PLAINS...WITH SOMEWHAT DRIER AIR NEAR THE FOOTHILLS. UPSLOPE WINDS WILL BE DEVELOPING THIS AFTERNOON...BUT WILL BE WEAKER THAN YESTERDAY. WARM AIR ALOFT WILL DELAY THE ONSET OF STORMS UNTIL LATE AFTERNOON AND LIMIT THEIR NUMBER...BUT WIDELY SCATTERED STORMS THAT DO DEVELOP FROM GREELEY AND BYERS EAST WILL BE STRONG TO SEVERE. THE WIN*D PROFILE IS NOT AS FAVORABLE FOR TORNADOES TODAY...BUT THERE IS ENOUGH SHEAR THAT AN ISOLATED TORNADO CANNOT BE RULED OUT. SPOTTERS MAY BE NEEDED FROM LATE AFTERNOON THROUGH THE EVENING...MAINLY FROM GREELEY AND LIMON EAST. GIMMESTAD
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 4 hr |
| Jul 31, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 51 min |
| Jul 31, 6:49 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 41 min |
| Jul 31, 7:28 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 47 min |
| Jul 31, 7:45 PM MDT | Tornado Warning | BOU | Weld | 30 min |
| Jul 31, 7:51 PM MDT | Tornado Warning | BOU | Phillips | 24 min |
| Jul 31, 7:57 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 48 min |
| Jul 31, 8:13 PM MDT | Tornado Warning | BOU | Weld | 32 min |
| Jul 31, 8:45 PM MDT | Tornado Warning | BOU | Adams, Weld | 30 min |
| Jul 31, 8:50 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 55 min |
| Jul 31, 9:16 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 44 min |
| Jul 31, 9:58 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert | 47 min |
| Jul 31, 10:18 PM MDT | Tornado Warning | BOU | Lincoln | 42 min |
| Jul 31, 10:25 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 35 min |
| Jul 31, 10:54 PM MDT | Tornado Warning | BOU | Lincoln | 51 min |
| Jul 31, 11:44 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 31 min |
| Aug 1, 2:22 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 9 hr |
| Aug 1, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 28 min |
| Aug 1, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 47 min |
| Aug 1, 4:22 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 53 min |
| Aug 1, 4:39 PM MDT | Tornado Warning | BOU | Washington | 21 min |
| Aug 1, 5:07 PM MDT | Tornado Warning | BOU | Washington | 38 min |
| Aug 1, 5:26 PM MDT | Tornado Warning | BOU | Washington | 34 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.