Alert archive / Colorado / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 138, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jul 13, 1996, 5:07 PM MDT for Yuma County, Colorado. It was in force for 63 min. 1 report 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
- Jul 13, 1996, 5:07 PM MDT (23:07 UTC)
- Expired
- Jul 13, 1996, 6:10 PM MDT
- In force
- 63 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 23:07 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 |
|---|---|---|---|
| Jul 13, 5:20 PM MDT | Hail 0.75 | Yuma, 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, 11.1 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
- 470 J/kg
- Mixed-layer CIN
- -201 J/kg
- Mixed-layer LCL
- 1684 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- -2 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 Jul 13, 2:36 PM MDT, 2 hours 31 minutes earlier.
Area forecast discussion, Jul 13, 2:36 PM MDT, 2 hours 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 236 PM MDT (336 PM CDT) SAT JUL 13 1996 ...TSTMS AND AMOUNT OF RAIN IS MAIN CHALLENGE WITH THIS FCST... MAIN CONCERN FOR CWA IS THIS EVE AND TONIGHT. CONVECTION FIRING UP OVR WY AND CO FOOTHILLS ATTM DUE TO AFTN HEATING AND UPSLOP FLOW. STRONG SHORTWAVE INDICATED MOVG INTO NE WY AND HI PLAINS WHICH SHOULD ENHANCE ACTIVITY NW OF FA THIS AFTN. ADAPS ALREADY SHOWING BOUYANT AMS OVR MUCH OF REGN THIS AFTN WITH NO CAP. TIMING OF SHORTWAVE (WHICH BOTH THE NGM/ETA VRY SIMILAR ON)...CONVERGENCE OF Q-VECTORS IN THE 700-300 LAYERS AND STRONG LOW LVL MSTR CONVERGENCE SUGGESTS TSTMS WL MOVE OVR FA BY 00Z. FOLLOWING THE THETA-E RDG OVR THE HI PLAINS WOULD PUT SW NEBRASKA AND NW KANSAS IN FAVORED TSTM AREAS. LOOKING AT FZL AND WBZ FROM MORNING SOUNDINGS...HVY RAIN AND HAIL LOOK TO BE THE MAIN THREATS. ETA/NGM CONVECTIVE PCPN FIELDS AND UVVS OVR THE FA POINT TO ACTIVE NIGHT WITH WIDESPREAD ACTIVITY UP TIL 12Z SUNDAY...THEN DESCENDING MOTION FCST. UPSLOP FLOW SHOULD CONTINUE EARLY BUT FEEL SUBSIDENCE AND MIXING WL DIMINISH CLOUD COVER BY AFTN OVR MOST AREAS. NGM TIME-HGT CROSS XCTNS SHOWS MID LVL MSTR TO STAY OVR CWA THRU THE DAY SUNDAY. PREFER ETA MDL IN DRYING OUT AMS SUN/SUN NGT WITH BUILDING HGTS ALFT. REST OF FCST LOOKS FAIR WITH WARMING TEMPS. GLD 059/080/058/092 810 HLC 063/080/061/092 820 CBK 060/079/058/092 810 MCK 060/079/059/092 810 TRB 059/081/057/094 7-0 ITR 056/080/057/091 7-0 KPL
In the hours before
Special weather statement, Jul 13, 2:06 PM MDT, 3 hours 1 minute before
COZ090>092-132105- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 203 PM MDT SAT JUL 13 1996 ...A TORNADO WATCH IS IN EFFECT UNTIL 9OO PM MDT FOR EXTREME EASTERN COLORADO... THE NATIONAL WEATHER SERVICE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH EFFECTIVE UNTIL 900 PM MDT FOR EXTREME EASTERN COLORADO INCLUDING THE COUNTIES OF YUMA...KIT CARSON AND CHEYENNE COUNTIES. REMEMBER... A TORNADO WATCH MEANS THAT TORNADOES ARVE POSSIBLE IN AND CLOSE TO THE WATCH AREA ALONG WITH LARGE HAIL AND DAMAGING WINDS. PEOPLE IN EASTERN COLORADO SHOULD STAY ALERT AND MONITOR NOAA WEATHER RADIO OR OTHER LOCAL RADIO OR TV STATION FOR FURTHER UPDATES. MATHEWSON
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 11:20 PM MDT | Severe Thunderstorm Warning | GLD | Sheridan | 65 min |
| Jul 13, 5:26 PM MDT | Tornado Warning | GLD | Yuma | 49 min |
| Jul 13, 5:52 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 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.