Alert archive / Arizona / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 9, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 28, 1994, 2:45 PM MST for Cochise County, Pima County, Santa Cruz County, Arizona. It was in force for 2 hr. 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 28, 1994, 2:45 PM MST (21:45 UTC)
- Expired
- Jul 28, 1994, 4:45 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Cochise County, AZ, Pima County, AZ, Santa Cruz County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 4:28 PM MST | Tornado F2 | To 12, AZ | A tornado touched down on the Hill Top area of northwest Tucson. The tornado travelled in a west-northwest direction, and its width varied from about a yard to 50 yards. The 7700 blocks of Soledad and Redwing Circle were particularly hit hard. A back porch |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.8 hours before the alert went out and 39 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
- 159 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 2221 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- -32 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 KTUS 282142 RRA
SVRTUS
AZC019-023-003-282345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
245 PM MST THU JUL 28 1994
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN SOUTH CENTRAL ARIZONA
...SOUTHEASTERN PIMA COUNTY...SANTA CRUZ COUNTY
(INCLUDES THE CITIES OF TUCSON AND NOGALES)
IN SOUTHEAST ARIZONA
...SOUTHWESTERN COCHISE COUNTY
AT 245 PM MST, THUNDERSTORMS REACHING SEVERE LIMITS WERE INDICATED IN
PORTIONS OF EXTREME SOUTHEAST PIMA COUNTY, SOUTHWEST COCHISE AND ALL OF
SANTA CRUZ. THE THUNDERSTORMS WERE MOVING SLOWLY TOWARD THE SOUTHWEST.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINE@SS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
END...SHOGRENWhat 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
Special weather statement, Jul 28, 11:38 AM MST, 3 hours 7 minutes before
AZZ009-010-007-282345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1138 AM MST THU JUL 28 1994 AT 1140 AM MST, NATIONAL WEATHER SERVICE RADAR, LIGHTNING DETECTORS, AND SATELLITE IMAGERY INDICATED A COUPLE OF STRONG THUNDERSTORMS DEVELOPING IN THE SANTA RITA MOUNTAINS ABOUT 30 TO 40 MILES SOUTH OF TUCSON. THE THUNDERSTORMS WERE MOVING TOWARD THE WEST AT 10 MILES AN HOUR. THESE NEW THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN. IN ADDITION THEY MAY PRODUCE SOME SMALL HAIL, VERY GUSTY WIND AND LOTS OF DANGEROUS LIGHTNING. FROM NOW THROUGH 1 PM TODAY, THESE STORMS SHOULD GRADUALLY MOVE OFF THE MOUNTAINS TOWARD THE ARIVACA AREA. PERSONS IN THEIR PATH SHOULD BE ON THE ALERT FOR POTENTIALLY DANGEROUS SITUATIONS SUCH AS UNEXPECTED WATER FLOWS, VERY GUSTY WIND THAT COULD CAUSE AN ABRUPT DECREASE IN VISIBILITY, AND POSSIBLY SOME HAIL. THE NATIONAL WEATHER SERVICE WILL BE WATCHING THESE STORMS CLOSELY IN ADDITION TO OTHERS THAT ARE LIKELY TO DEVELOP AS THE DAY PROGRESSES. SO STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR ANY ADDITIONAL STATEMENTS OR BULLETINS. SHOGREN h3j 40502=v6WWUS 6P WUUSF h V6WWUS* p'66WWUS` 6WWUSR #F66WWUS L06WWUS8 Tf6WWUS~ 6WWUS 0XWSUS h7q4WSUS2 t?6WWUS <a`WWUSh ,WWUSr 5X WUUSx @3U^WSUS6 66WWUSV 6WWUS ` WUUS qWWUS `/86WWUS 86WWUS T57003 2220Vr33 BABJ N<WOUS@ t0 12203 10194 2037987 57002 6992098 8103/ 333 g WUUS l70 70000 10281 2c<6WWUS xc^WWUSJ R WUUS m+oWEPA4 TWSCA 52737 32980 100M=HWWJP \00 81040 333h>TWEPA%T 0 02050 10088 20@6WWUS& tWWUS$* o6WWUSB e`WWUS LH6WWUSd || WUUS
Special weather statement, Jul 28, 11:38 AM MST, 3 hours 7 minutes before
AZZ009-010-007-282345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1138 AM MST THU JUL 28 1994 AT 1140 AM MST, NATIONAL WEATHER SERVICE RADAR, LIGHTNING DETECTORS, AND SATELLITE IMAGERY INDICATED A COUPLE OF STRONG THUNDERSTORMS DEVELOPING IN THE SANTA RITA MOUNTAINS ABOUT 30 TO 40 MILES SOUTH OF TUCSON. THE THUNDERSTORMS WERE MOVING TOWARD THE WEST AT 10 MILES AN HOUR. THESE NEW THUNDERSTORMS WERE PRODUCING VERY HEAVY RAIN. IN ADDITION THEY MAY PRODUCE SOME SMALL HAIL, VERY GUSTY WIND AND LOTS OF DANGEROUS LIGHTNING. FROM NOW THROUGH 1 PM TODAY, THESE STORMS SHOULD GRADUALLY MOVE OFF THE MOUNTAINS TOWARD THE ARIVACA AREA. PERSONS IN THEIR PATH SHOULD BE ON THE ALERT FOR POTENTIALLY DANGEROUS SITUATIONS SUCH AS UNEXPECTED WATER FLOWS, VERY GUSTY WIND THAT COULD CAUSE AN ABRUPT DECREASE IN VISIBILITY, AND POSSIBLY SOME HAIL. THE NATIONAL WEATHER SERVICE WILL BE WATCHING THESE STORMS CLOSELY IN ADDITION TO OTHERS THAT ARE LIKELY TO DEVELOP AS THE DAY PROGRESSES. SO STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE FOR ANY ADDITIONAL STATEMENTS OR BULLETINS. SHOGREN h3j 40502=v6WWUS 6P WUUSF h V6WWUS* p'66WWUS` 6WWUSR #F66WWUS L06WWUS8 Tf6WWUS~ 6WWUS 0XWSUS h7q4WSUS2 t?6WWUS <a`WWUSh ,WWUSr 5X WUUSx @3U^WSUS6 66WWUSV 6WWUS ` WUUS qWWUS `/86WWUS 86WWUS T57003 2220Vr33 BABJ N<WOUS@ t0 12203 10194 2037987 57002 6992098 8103/ 333 g WUUS l70 70000 10281 2c<6WWUS xc^WWUSJ R WUUS m+oWEPA4 TWSCA 52737 32980 100M=HWWJP \00 81040 333h>TWEPA%T 0 02050 10088 20@6WWUS& tWWUS$* o6WWUSB e`WWUS LH6WWUSd || WUUS
Special weather statement, Jul 28, 12:55 PM MST, 1 hour 50 minutes before
AZZ009-010-007-290200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1255 PM MST THU JUL 28 1994 AT 1250 PM MST, THUNDERSTORMS WERE CONTINUING TO DEVELOP IN SOUTHEAST ARIZONA. MOST OF THE STORMS WERE OVER THE HIGHER TERRAIN AND PRIMAIRLY IN SANTA CRUZ, SOUTHERN COCHISE AND SOUTHEAST PIMA COUNTIES. BETWEEN 1130 AND 1230 PM, VERY LITTLE MOVEMENT WAS INDICATED. AT 1245 PM, THE STRONGEST THUNDERSTORMS WERE OVER THE PATAGONIA, HUACHUCA, CHRIRCHUA AND SANTA RITA MOUNTAINS OF SANTA CRUZ AND COCHISE COUNTIES. ANOTHER STRONG CELL WAS INDICATED NEAR NOGALES. AT THE SAME TIME, NEW CELLS WERE DEVELOPING OVER THE HIGHER TERRAIN OF SOUTHEAST PIMA COUNTY AS WELL. AS THE AFTERNOON PROGRESSES, THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP AND INTENSIFY. WITH LITTLE MOVEMENT, SOME OF THEM MAY CAUSE NORMALLY DRY WASHES AND STREAM BEDS TO FLOW WITH WATER AND BECOME POTENTIALLY DANGEROUS, EVEN AT GREAT DISTANCES FROM THE STORMS. STRONG GUSTY WIND WILL ALSO BE GENERATED FROM SOME OF THE CELLS, POSSIBLY CAUSING BLOWING DUST AND REDUCED VISIBILITY. AND A FEW THUNDERSTORMS MAY EVEN PRODUCE SOME SMALL HAIL ALONG WITH THEIR VERY HEAVY RAIN AND DANGEROUS LIGHTNING. SIMPLY PUT, NUMEROUS THUNDERSTORMS ARE DEVELOPING IN SOUTHEAST ARIZONA THIS THURSDAY AFTERNOON AND PERSONS ANYWHERE IN THEIR VICINITY SHOULD STAY TUNED TO THEIR FAVORITE NEW SOURCE FOR THE LATEST STATEMENTS OR BULLETINS CONCERNING THESE STORMS. MOST IMPORTANTLY, BE PREPARED THROUGHOUT THE DAY FOR ANY UNEXPECTED WEATHER EVENTS. END...SHOGREN
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 4:00 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima, Santa Cruz | 60 min |
| Jul 28, 4:16 PM MST | Tornado Warning | TWC | Pima | 44 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1994Every severe thunderstorm warning in 1994
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.