Alert archive / Arizona / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 3, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Feb 24, 1998, 3:14 PM MST for Pima County, Pinal County, Arizona. It was in force for 51 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
- Feb 24, 1998, 3:14 PM MST (22:14 UTC)
- Expired
- Feb 24, 1998, 4:05 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 88 km from the middle of the area, began a volume at 22:17 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
Tuscon, AZ (KTUS), launched 12:00Z, 10.2 hours before the alert went out and 73 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2979 m above ground
- 0-6 km bulk shear
- 104 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 506 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
122 WUUS1 KTUS 242215 RRA SVRTUS AZC019-021-242305- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 314 PM MST TUE FEB 24 1998 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 405 PM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHERN ARIZONA ...NORTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA ...SOUTH CENTRAL PINAL COUNTY AT 313 PM MST... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 23 MILES SOUTHWEST OF ELOY OR 17 MILES SOUTHWEST OF FRIENDLY CORNERS MOVING EAST NORTHEAST AT 40 MPH. SOME LOCATIONS IN THE PATH OF THIS STORM ARE... FRIENDLY CORNERS BY 338 PM MST ELOY BY 345 PM MST PICACHO BY 347 PM MST PICACHO PEAK BY 349 PM MST RED ROCK BY 353 PM MST
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 Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 24, 2:30 PM MST, 44 minutes earlier.
Area forecast discussion, Feb 24, 2:30 PM MST, 44 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST TUE FEB 24 1998 SYNOPSIS...WINTER STORM MOVING ACROSS AREA. FRONT MOVING INTO EASTERN AREAS AND WILL PUSH INTO NEW MXICO AROUND 500 PM. HIGH WINDS ARE OCCURING AHEAD OF THE FRONT...SHOWERS AND THUNDERSTORMS ALONG AND BEHIND THE FRONT. BROADER AREA OF RAIN EXPECTED TO DEVELOP LATER THIS EVENING. DISCUSSION...WILL ALLOW WIND ADVSY TO END AT 5PM...MOST OF WNDS SHOULD BE DOWN AS FRONTAL BAND OF PRECIP MOVES THRU. MAY NEED HIGH WND WARNING STILL FOR FAR SE AZ BUT WILL HOLD OFF ON THIS FOR NOW BUT MAY NEED TO ADD THIS IF FRONT DOES NOT GET THRU. NOT MUCH PRECIP WITH FRONT BUT EXPECTING MORE TO DEVELOP AS COLD AIR MOVES IN THE TONIGHT. THIS IS KIND OF AN IFFY SCENARIO BUT MM5 SHOWS UPSLOPE STARTING THIS EVENING AND FEEL COMFORTABLE IT WILL HAPPEN. QUESTION IS HOW MUCH RAIN...MODELS INDIACTE UP TO AN INCH ON MTNS AND THIS MAY CAUSE SOME FLOODING PROBLEMS. THICKNESS COOLING ENDS LATE TONIGHT AND PRECIP SHOULD END SHORTLY THEREAFTER. LUKS LIKE A CLIPPER WILL PASS BY FOR SOME LIGHT PRECIP THU NIGHT/FRI. TUS +94. HOLBROOK TUS...WINTER STORM WARNING ABOVE 5000 FEET TONIGHT ALL OF SOUTHEAST ARIZONA EXCEPT FAR WESTERN PIMA COUNTY.
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 2:37 PM MST | Severe Thunderstorm Warning | TWC | Pima | 33 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1998Every severe thunderstorm warning in 1998
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.