Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 239, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Aug 1, 1996, 4:40 PM MDT for Yuma County, Colorado. It was in force for 50 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, 4:40 PM MDT (22:40 UTC)
- Expired
- Aug 1, 1996, 5:30 PM MDT
- In force
- 50 min
- Issued by
- NWS Goodland, KS
- Area
- Whole counties
County Yuma County, CO
The radar
The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 22:43 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, 4:50 PM MDT | Hail 1 | Yuma, CO | |
| Aug 1, 5:40 PM MDT | Hail 1 | Joes, 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, 10.7 hours before the alert went out and 70 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.
NWS Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 1, 2:00 PM MDT, 2 hours 40 minutes earlier.
Area forecast discussion, Aug 1, 2:00 PM MDT, 2 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 200 PM MDT (300 PM CDT) THU AUG 1 1996 SHORT TERM: MDLS ARE GIVING LTE 20 POPS ALL LOCALES... BUT WITH DECENT SFC MOISTURE AXIS INVOF OF CWA...WEAK MID-LEVEL WAVE/ISENT LIFT... DIVERGENCE ALOFT...AND MILD SELY H85 FLO...AL PROGGD AGAIN TO BE INVOF CWA...WENT ABV FAN/FWC AND GAVE 40 POPS TONITE ALL ZONES. TEMPS LUK FINE AND WIL NOT DEVIATE. ONLY DIFFERENCE FROM LAST NITE IS THE TIMING OF FAST-MOVING S/W ENERGY IN NWLY FLO ALOFT. BEST TRIGGER LOOKS TO BE INVOF NWRN CO/SCNTRL WYO AND CHARGING FAST. BY THE TIME IT REACHES CWA...H7 TEMPS WILL HAVE WARMED FROM ABT 9C TO ABT 13C IN A SW/NE DIRECTION AND CAPPED. THINK ERN CO ZNS FOR THE MOST PART WILL BE PCPN FREE AFTER MIDNIGHT. FURTHER EAST ACRS NWRN KS...BEST CHC FOR PCPN AFT 03Z LUKS TO BE ALONG AND EAST OF A GLD/TRB LINE AS UPPER S/W ENTERS THEN EXITS REGION LATE. LLJ LUKS TO SET UP MAINLY EAST OF GLD AND BTWN HLC AND CBK TONITE. CONSIDERED FLASH FLOOD WATCH BUT CONSIDERING WHERE RR QUAD OF EXITING STREAK SHUD/CUD BE...HVY PCPN PROBABLY MAINLY NORTH OF I-70 OR OVER NEBR ZNS. LONG TERM: UPPER LEVEL RIDGE HAD BEEN PROGGED TO MOVE OVER THE COUNTY WARNING AREA FRIDAY AND SATURDAY...BUT LATEST RUNS INDICATE THAT AN ACTIVE CONVECTIVE PATTERN WILL CONTINUE. THIS SEEMS REASONABLE AS WEAK SHORT WAVES PASS OVER THE HIGH PLAINS FROM THE PACIFIC NORTHWEST. THE AIR MASS OVER THE AREA WILL CONTINUE TO BE RELATIVELY MOIST AND UNSTABLE. WEAK SURFACE BOUNDARY WILL EXTEND FROM EASTERN WYOMING TO SOUTHEASTERN COLORADO BY FRIDAY AFTERNOON WHICH MAY SERVE AS A FOCUSING MECHANISM FOR CONVECTION. NGM GRIDDED DATA SHOWS SOME ENHANCED LIFT BY FRIDAY AFTERNOON. SO...WILL KEEP MENTION OF THUNDERSTORMS GOING THROUGH FRIDAY EVENING. WARMER AIR WILL MOVE OVER THE AREA SATURDAY...AND THE AIR MASS MAY BECOME CAPPED AT THAT POINT. SHOULD ALSO HAVE SOME WEAK DOWNSLOPE WINDS NEAR THE COLORADO/KANSAS BORDER. WILL KEEP AFTERNOON CONV0ECTION MENTIONED IN THE EASTERN PARTS OF AREA...BUT WILL GO DRY ELSEWHERE. GLD 63/89/63/94 4231 HLC 64/92/68/94 4332 CBK 63/90/64/95 4231 MCK 63/91/65/95 4231 TRB 63/91/65/95 4231 ITR 62/89/63/92 4231 VOJTESAK/MENTZER
In the hours before
Local storm report, Aug 1, 11:03 AM MDT, 5 hours 37 minutes before
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</html>Special weather statement, Aug 1, 3:21 PM MDT, 1 hour 19 minutes before
COZ090>092-KSZ001-002-013-014-027-028-041-042-NEZ079-012325- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 321 PM MDT (421 PM CDT) THU AUG 1 1996 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF NORTHWEST KANSAS...EXTREME EASTERN COLORADO...AND SOUTHWEST NEBRASKA... THE NATIONAL WEATHER SERVICE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH UNTIL 9 PM MDT (10 PM CDT) FOR PARTS OF NORTHWEST KANSAS...SOUTHWEST NEBRASKA...AND EXTREME EASTERN COLORADO. IN NEBRASKA...DUNDY COUNTY IS IN THE WATCH. IN COLORADO...YUMA...CHEYENNE...AND KIT CARSON COUNTIES ARE IN THE WATCH. IN KANSAS...CHEYENNE...RAWLINS...SHERMAN...THOMAS...WALLACE...LOGAN ...GREELEY...AND WICHITA COUNTIES ARE IN THE WATCH. REMEMBER THAT A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS TO DEVELOP. DAMAGING WINDS AND LARGE HAIL OCCUR WITH SEVERE THUNDERSTORMS. IF A THUNDERSTORM MOVES NEAR YOUR AREA...SEEK SHELTER INSIDE A REINFORCED BUILDING. MENTZER
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 6:16 PM MDT | Severe Thunderstorm Warning | GLD | Gove | 49 min |
| Jul 31, 6:19 PM MDT | Severe Thunderstorm Warning | GLD | Sheridan | 51 min |
| Jul 31, 6:25 PM MDT | Severe Thunderstorm Warning | GLD | Graham | 65 min |
| Jul 31, 6:49 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Wallace | 51 min |
| Jul 31, 7:02 PM MDT | Severe Thunderstorm Warning | GLD | Gove | 63 min |
| Jul 31, 7:05 PM MDT | Severe Thunderstorm Warning | GLD | Wichita | 65 min |
| Jul 31, 7:16 PM MDT | Severe Thunderstorm Warning | GLD | Greeley | 49 min |
| Jul 31, 8:05 PM MDT | Severe Thunderstorm Warning | GLD | Greeley, Wichita | 50 min |
| Jul 31, 9:32 PM MDT | Severe Thunderstorm Warning | GLD | Logan | 63 min |
| Jul 31, 9:58 PM MDT | Severe Thunderstorm Warning | GLD | Sherman | 62 min |
| Jul 31, 10:25 PM MDT | Severe Thunderstorm Warning | GLD | Thomas | 65 min |
| Jul 31, 10:30 PM MDT | Severe Thunderstorm Warning | GLD | Logan | 65 min |
| Jul 31, 10:45 PM MDT | Severe Thunderstorm Warning | GLD | Wallace | 65 min |
| Jul 31, 11:18 PM MDT | Severe Thunderstorm Warning | GLD | Logan | 47 min |
| Jul 31, 11:24 PM MDT | Severe Thunderstorm Warning | GLD | Greeley, Wichita | 61 min |
| Jul 31, 8:40 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 65 min |
| Jul 31, 8:57 PM MDT | Flash Flood Warning | GLD | Yuma | 63 min |
| Jul 31, 8:57 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 min |
| Jul 31, 9:13 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 62 min |
| Jul 31, 10:13 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 62 min |
| Aug 1, 3:52 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 48 min |
| Aug 1, 5:23 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 47 min |
| Aug 1, 5:41 PM MDT | Tornado Warning | GLD | Kit Carson | 59 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.