Alert archive / Arizona / Flash Flood Warnings in 1993
Flash Flood Warning 25, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 28, 1993, 12:33 PM MST for Cochise County, Arizona. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Aug 28, 1993, 12:33 PM MST (19:33 UTC)
- Expired
- Aug 28, 1993, 2:30 PM MST
- In force
- 117 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Cochise County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 7.6 hours before the alert went out and 113 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
- 1202 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 53 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 281938 FFWTUS AZC003-282130- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 1233 PM MST SAT AUG 28 1993 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 230 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST ARIZONA ...SOUTHERN COCHISE COUNTY AT 1231 PM MST THE WEATHER SERVICE OFFICE IN TUCSON RECEIVED A REPORT RELAYED BY THE BISBEE SHERIFFS OFFICE IN COCHISE COUNTY OF FLASH FLOODING IN THE CHIRICAHUA MOUNTAINS IN SOUTHEAST COCHISE COUNTY. WATERS IN AT LEAST ONE UNDISCLOSED WASH OR STREAM HAD RISEN TO 3 FEET...TO THE DOOR HANDLES OF SEVERAL CARS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. MEYER
What forecasters said that day
The local office's own words before this flash flood 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, Aug 28, 10:03 AM MST, 2 hours 30 minutes before
AZC003-019-023-282100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1003 AM MST SAT AUG 28 1993 ...A FLASH FLOOD WATCH IS IN AFFECT FOR MUCH OF EASTERN ARIZONA TODAY... AT 10 AM THIS MORNING WEATHER RADAR INDICATED THUNDERSTORMS WERE OCCURING IN CENTRAL COCHISE COUNTY ALONG AND SOUTH OF INTERSTATE-10 FROM ABOUT BENSON TO WILCOX. THE STORMS WERE MOVING NORTH AT ABOUT 10 MPH. THUNDERSTORMS WERE ALSO BEGINNING TO DEVELOP IN EASTERN PIMA COUNTY AND IN SANTA CRUZ COUNTY AT 10 AM. THE AIRMASS OVER SOUTHEAST ARIZONA IN VERY MOIST AND UNSTABLE THIS MORNING AND WITH ADDITIONAL SUNSHINE THUNDERSTORM DEVELOPMENT MAY BECOME RATHER EXPLOSIVE TODAY. THE GROUND IS ALREADY SATURATED IN MANY AREAS FROM RECENT RAINS SO ADDITIONAL RAINFALL WILL QUICKLEY RUN OFF INTO STREAMS AND WASHES. A FLASH FLOOD WATCH IS IN AFFECT THROUGHOUT THE DAY...A FLASH FLOOD WATCH MEANS CONDITIONS ARE PRIME FOR FLOODING AND FLASH FLOODING. THIS IS NOT A GOOD TIME TO BE OUT HIKING OR CAMPING. IF YOU ARE IN A FLOOD PRONE AREA TAKE PRECAUTIONS...FLOODING CAN OCCUR SUDDENLY...EVEN FROM THUNDERSTORMS THAT ARE SEVERAL MILES AWAY. STRONG WINDS AND SMALL HAIL ARE ALSO A POSSIBLITY WITH THUNDERSTORMS TODAY. NWS TUS/CRIMMINS
Special weather statement, Aug 28, 10:08 AM MST, 2 hours 25 minutes before
AZC003-019-023-282100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1003 AM MST SAT AUG 28 1993 ...A FLASH FLOOD WATCH IS IN AFFECT FOR MUCH OF EASTERN ARIZONA TODAY... AT 10 AM THIS MORNING WEATHER RADAR INDICATED THUNDERSTORMS WERE OCCURING IN CENTRAL COCHISE COUNTY ALONG AND SOUTH OF INTERSTATE-10 FROM ABOUT BENSON TO WILCOX. THE STORMS WERE MOVING NORTH AT ABOUT 10 MPH. THUNDERSTORMS WERE ALSO BEGINNING TO DEVELOP IN EASTERN PIMA COUNTY AND IN SANTA CRUZ COUNTY AT 10 AM. THE AIRMASS OVER SOUTHEAST ARIZONA IN VERY MOIST AND UNSTABLE THIS MORNING AND WITH ADDITIONAL SUNSHINE THUNDERSTORM DEVELOPMENT MAY BECOME RATHER EXPLOSIVE TODAY. THE GROUND IS ALREADY SATURATED IN MANY AREAS FROM RECENT RAINS SO ADDITIONAL RAINFALL WILL QUICKLEY RUN OFF INTO STREAMS AND WASHES. A FLASH FLOOD WATCH IS IN AFFECT THROUGHOUT THE DAY...A FLASH FLOOD WATCH MEANS CONDITIONS ARE PRIME FOR FLOODING AND FLASH FLOODING. THIS IS NOT A GOOD TIME TO BE OUT HIKING OR CAMPING. IF YOU ARE IN A FLOOD PRONE AREA TAKE PRECAUTIONS...FLOODING CAN OCCUR SUDDENLY...EVEN FROM THUNDERSTORMS THAT ARE SEVERAL MILES AWAY. STRONG WINDS AND SMALL HAIL ARE ALSO A POSSIBLITY WITH THUNDERSTORMS TODAY. NWS TUS/CRIMMINS
Special weather statement, Aug 28, 12:31 PM MST, 2 minutes before
AZC003-019-023-282130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1231 PM MST SAT AUG 28 1993 ...FLASH FLOOD WATCH FOR MOST OF CENTRAL AND EASTERN ARIZONA UNTIL 9 PM MST... AT 1215 PM MST WEATHER RADAR INDICATED THUNDERSTORMS WERE BECOMING MORE WIDESPREAD AND ACTIVE THROUGHOUT SOUTHEAST ARIZONA. THE MOST ACTIVE THUNDERSTORM AREAS WERE SOTHERN AND CENTRAL COCHISE COUNTY...THE NOGALES AREA...AND THE GREATER TUCSON AREA. BY NOON...SEVERAL RAIN GUAGES AROUND THE OUTSKIRTS OF TUCSON HAD REGISTERED RELATIVELY HEAVY RAINFALL TOTALS OVER SHORT PERIODS OF TIME. ONE GUAGE 10 MILES SOUTHEAST OF TOWN NEAR I-10 REPORTED 0.63 BETWEEN 1120 AND 1150 AM...ANOTHER GUAGE BETWEEN ORACLE AND TUCSON SHOWED 0.59 BETWEEN 1140 AND 1210. MOST CELL MOVEMENT APPEARED TO BE TO THE NORTH AT 5 TO 10 MPH. THE AIRMASS OVER SOUTHEAST ARIZONA CONTINUES TO BE VERY MOIST AND UNSTABLE...EXPECT COVERAGE AND INTENSITY OF THUNDERSTORMS TO INCREASE THE REMAINDER OF THE AFTERNOON AND EVENING. REMEMBER...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM...A FLASH FLOOD WATCH MEANS CONDITIONS ARE PRIME FOR FLOODING AND FLASH FLOODING. IF YOU ARE IN A FLOOD PRONE AREA TAKE PRECAUTIONS...FLOODING CAN OCCUR SUDDENLY...EVEN FROM THUNDERSTORMS THAT ARE SEVERAL MILES AWAY. MANY OF THESE STORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING...HEAVY RAIN...AND POSSIBLY SMALL HAIL. MEYER
Special weather statement, Aug 28, 12:31 PM MST, 2 minutes before
AZC003-019-023-282130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1231 PM MST SAT AUG 28 1993 ...FLASH FLOOD WATCH FOR MOST OF CENTRAL AND EASTERN ARIZONA UNTIL 9 PM MST... AT 1215 PM MST WEATHER RADAR INDICATED THUNDERSTORMS WERE BECOMING MORE WIDESPREAD AND ACTIVE THROUGHOUT SOUTHEAST ARIZONA. THE MOST ACTIVE THUNDERSTORM AREAS WERE SOTHERN AND CENTRAL COCHISE COUNTY...THE NOGALES AREA...AND THE GREATER TUCSON AREA. BY NOON...SEVERAL RAIN GUAGES AROUND THE OUTSKIRTS OF TUCSON HAD REGISTERED RELATIVELY HEAVY RAINFALL TOTALS OVER SHORT PERIODS OF TIME. ONE GUAGE 10 MILES SOUTHEAST OF TOWN NEAR I-10 REPORTED 0.63 BETWEEN 1120 AND 1150 AM...ANOTHER GUAGE BETWEEN ORACLE AND TUCSON SHOWED 0.59 BETWEEN 1140 AND 1210. MOST CELL MOVEMENT APPEARED TO BE TO THE NORTH AT 5 TO 10 MPH. THE AIRMASS OVER SOUTHEAST ARIZONA CONTINUES TO BE VERY MOIST AND UNSTABLE...EXPECT COVERAGE AND INTENSITY OF THUNDERSTORMS TO INCREASE THE REMAINDER OF THE AFTERNOON AND EVENING. REMEMBER...A FLASH FLOOD WATCH IS IN EFFECT UNTIL 9 PM...A FLASH FLOOD WATCH MEANS CONDITIONS ARE PRIME FOR FLOODING AND FLASH FLOODING. IF YOU ARE IN A FLOOD PRONE AREA TAKE PRECAUTIONS...FLOODING CAN OCCUR SUDDENLY...EVEN FROM THUNDERSTORMS THAT ARE SEVERAL MILES AWAY. MANY OF THESE STORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...FREQUENT LIGHTNING...HEAVY RAIN...AND POSSIBLY SMALL HAIL. MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 5:18 PM MST | Flash Flood Warning | TWC | Pima | 117 min |
| Aug 28, 3:07 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
Nearby
Flash Flood Warnings in Arizona, 1993Every flash flood warning in 1993
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.