Alert archive / Colorado / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 86, NWS Pueblo, CO
NWS Pueblo, CO issued this severe thunderstorm warning at Aug 29, 1999, 1:52 PM MDT for El Paso County, Colorado. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 29, 1999, 1:52 PM MDT (19:52 UTC)
- Expired
- Aug 29, 1999, 2:55 PM MDT
- In force
- 63 min
- Issued by
- NWS Pueblo, CO
- Area
- Whole counties
County El Paso County, CO
The radar
The Pueblo radar (KPUX), 51 km from the middle of the area, began a volume at 19:54 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.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.9 hours before the alert went out and 160 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
- 2 J/kg
- Mixed-layer CIN
- -293 J/kg
- Mixed-layer LCL
- 1920 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPUB 291955 RRA SVRPUB COC041-292055- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PUEBLO CO 152 PM MDT SUN AUG 29 1999 THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN EL PASO COUNTY IN EAST CENTRAL COLORADO * UNTIL 255 PM MDT * AT 152 PM MDT...RADAR SHOWED A SEVERE STORM 5 MILES NORTHWEST OF CALHAN OR 30 MILES NORTHEAST OF DOWNTOWN COLORADO SPRINGS...MOVING EAST NORTHEAST AT 5 MPH. SOME LOCATIONS AFFECTED WILL BE HIGHWAY 24 FROM CALHAN TO RAMAH AND THE OPEN COUNTRY OF EXTREME NORTHEAST EL PASO COUNTY THROUGH 245 PM. AT THIS TIME...THE MOST LIKELY SEVERE WEATHER WITH THIS STORM IS LARGE HAIL AND DAMAGING WINDS. IF YOU ARE IN OR CLOSE TO THE WARNED AREA...GO TO SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. LW/MM
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 Pueblo, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 29, 3:07 AM MDT, 10 hours 45 minutes earlier.
Area forecast discussion, Aug 29, 3:07 AM MDT, 10 hours 45 minutes before
SOUTH CENTRAL AND SOUTHEAST COLORADO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PUEBLO 307 AM MDT SUN AUG 29 1999 CURRENTLY ACROSS THE REGION...A FEW LIGHT SHOWERS OVER THE S MTNS AND OVER THE FAR EASTERN PLAINS. LAPS ANALYSIS INDICATES MOISTURE HAS INCREASED OVER THE EASTERN PLAINS OF COLORADO AS DWPTS IN THE 60S MOST LOCATIONS. THIS MOISTURE BELIEVED TO BE SHALLOW AS VAD FROM 88D INDICATES NW FLOW JUST OFF SFC. MOISTURE ONCE AGAIN INCREASES ALOFT AS WAT VAP IMAGERY SHOWS TONGUE OF HIGEHR LEVEL MOISTURE EXTENDING FROM ARIZ...NM AND ACROSS S AND SE COLORADO. WATER VAP IMAGERY ALSO INDICATES A COUPLE OF SHORT WAVES ROTATING INTO WY AND MONTANA. SHORT TERM...ANTICPATE SHOWERS TO DISSIPATE...ALTHOUGH CLOUDS WILL STAY AROUND AS I SEE NO FORCING OR DRYING MOVING INTO AREA TO PUSH CLOUDS OUT. CLOUDS WILL SLOWLY DISSIPATE LATER THIS MORNING AS ATMOS MIXES OUT. THIS AFTERNOON...GRIDDED DATA INDICATES LLVL TROUGH TO REMAIN OVER THE EASTERN PLAINS THROUGH THIS EVENING. ALTHOUGH THE BEST PV AND QG FORCING WILL BE NORTH AND EAST OF THE FCST AREA LATER THIS AFTERNOON...ENOUGH RESIDUAL MOISTURE AND LLVL FORCING WILL BE IN PLACE FOR SCATTERED STORM ACTIVITY THIS AFTERNOON. STORM COVERAGE SHOULD BE A BIT LESS IN INTENSITY AND AMOUNT THEN YESTERDAY...EXCEPT OVER THE FAR EASTERN PLAINS WHER ACTIVITY WILL LAST INTO THE EVENING HOURS...WITH A FEW STRONG STORMS POSSIBLE. POPS SHOULD CONTINUE TO DECREASE ALONG THE I-25 CORRIDOR DURING EARLY NEXT WEEK AS MODELS SHOW IMPRESSIVE HIGH AMPLITUDE TROUGH CRASHING INTO THE PAC COAST. UPPER LEVEL MOISTURE TO REMAIN HIGH THOUGH THROUGH 72 HOURS...HOWEVER WITH SOUTHWESTERLY FLOW DEVELOPING...SFC TROUGH TO BE PUSHED INTO W KS. LIKEWISE SCTD POPS WILL CONTINUE IN MTNS...WITH SOME OF THE STORMS MOVING OFF THE MTNS AND INTO THE PLAINS. A FEW MORE ORGANIZED STORMS WILL BE POSSIBLE OVER THE FAR EASTERN PLAINS ASSOCIATED WITH SFC TROUGH ALONG BORDER. NEW MRF JUST COMING IN...OVERALL...PRECIP CHANCES ON PLAINS SHOULD BE LESS THAN NORMAL WITH SW FLOW ALOFT WITH SCT POPS MTNS. MRF IS INDICATING FIRST STRONG PACIFIC FRONT TO CROSS AREA SOMETIMES LATE NEXT WEEK. HODANISH .PUB...NONE.
In the hours before
Special weather statement, Aug 29, 11:57 AM MDT, 1 hour 55 minutes before
COZ058>081-291900- SIGNIFICANT WEATHER OUTLOOK NATIONAL WEATHER SERVICE PUEBLO CO 1157 AM MDT SUN AUG 29 1999 THE SIGNIFICANT WEATHER OUTLOOK FOR SOUTHEAST AND SOUTH CENTRAL COLORADO... ...SPOTTER ACTIVATION MAY BE NEEDED FOR ISOLATED SEVERE WEATHER THIS AFTERNOON... AROUND NOON SUNDAY...SATELLITE PICTURES SHOWED A BAND OF SHOWERS AND THUNDERSTORMS MOVING INTO LAKE COUNTY AND THE NORTHERN SAWATCH MOUNTAIN RANGE. THIS LINE OF SHOWERS WAS BEING TRIGGERED BY AN UPPER LEVEL DISTURBANCE MOVING THROUGH NORTH CENTRAL COLORADO. THIS DISTURBANCE WILL CONTINUE TO MOVE EAST THROUGH THE AFTERNOON... TRIGGERING SHOWERS AND THUNDERSTORMS OVER SOUTHERN COLORADO. STORMS WILL DEVELOP OVER THE MOUNTAINS AND HIGH VALLEYS EARLY THIS AFTERNOON AND THEN SPREAD ONTO THE PLAINS SHORTLY AFTER THAT. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED TODAY... ISOLATED OCCURRENCES ARE POSSIBLE. THE MOST PROBABLE THREAT WITH ANY SEVERE STORM OCCURRING TODAY WOULD BE HAIL TO 1 INCH IN DIAMETER OR DAMAGING WINDS. ADDITIONAL THREATS INCLUDE LIGHTNING...HEAVY RAIN AND LOCAL NUISANCE FLOODING. AS WITH ALL THUNDERSTORMS...LIGHTNING WILL BE ONE OF THE GREATEST THREATS FROM ANY STORMS FORMING TODAY. LIGHTNING KILLS AND INJURES MANY PEOPLE EVERY YEAR IN COLORADO. IF YOU HEAR THUNDER...OR SEE LIGHTNING NEARBY...SEEK SAFE SHELTER IMMEDIATELY. SAFE SHELTER INCLUDES ENCLOSED BUILDINGS OR VEHICLES. DO NOT TAKE SHELTER NEAR A TREE DURING A THUNDERSTORM.
Special weather statement, Aug 29, 11:57 AM MDT, 1 hour 55 minutes before
COZ058>081-291900- SIGNIFICANT WEATHER OUTLOOK NATIONAL WEATHER SERVICE PUEBLO CO 1157 AM MDT SUN AUG 29 1999 THE SIGNIFICANT WEATHER OUTLOOK FOR SOUTHEAST AND SOUTH CENTRAL COLORADO... ...SPOTTER ACTIVATION MAY BE NEEDED FOR ISOLATED SEVERE WEATHER THIS AFTERNOON... AROUND NOON SUNDAY...SATELLITE PICTURES SHOWED A BAND OF SHOWERS AND THUNDERSTORMS MOVING INTO LAKE COUNTY AND THE NORTHERN SAWATCH MOUNTAIN RANGE. THIS LINE OF SHOWERS WAS BEING TRIGGERED BY AN UPPER LEVEL DISTURBANCE MOVING THROUGH NORTH CENTRAL COLORADO. THIS DISTURBANCE WILL CONTINUE TO MOVE EAST THROUGH THE AFTERNOON... TRIGGERING SHOWERS AND THUNDERSTORMS OVER SOUTHERN COLORADO. STORMS WILL DEVELOP OVER THE MOUNTAINS AND HIGH VALLEYS EARLY THIS AFTERNOON AND THEN SPREAD ONTO THE PLAINS SHORTLY AFTER THAT. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED TODAY... ISOLATED OCCURRENCES ARE POSSIBLE. THE MOST PROBABLE THREAT WITH ANY SEVERE STORM OCCURRING TODAY WOULD BE HAIL TO 1 INCH IN DIAMETER OR DAMAGING WINDS. ADDITIONAL THREATS INCLUDE LIGHTNING...HEAVY RAIN AND LOCAL NUISANCE FLOODING. AS WITH ALL THUNDERSTORMS...LIGHTNING WILL BE ONE OF THE GREATEST THREATS FROM ANY STORMS FORMING TODAY. LIGHTNING KILLS AND INJURES MANY PEOPLE EVERY YEAR IN COLORADO. IF YOU HEAR THUNDER...OR SEE LIGHTNING NEARBY...SEEK SAFE SHELTER IMMEDIATELY. SAFE SHELTER INCLUDES ENCLOSED BUILDINGS OR VEHICLES. DO NOT TAKE SHELTER NEAR A TREE DURING A THUNDERSTORM.
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 6:19 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 46 min |
| Aug 29, 5:51 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 64 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.