OPINION
James Ronald Bello appeals his conviction for possession of a controlled substance, a second degree felony, in violation of Utah Code Ann. § 58-37-8(2)(a)(i) (1990). We reverse the trial court’s denial of Bello’s motion to suppress the evidence and remand for further proceedings.
FACTS
On March 15,1991, at approximately 11:15 a.m., Deputy Phil Barney was traveling west on 1-70 when he noticed Bello’s eastbound pickup truck temporarily drift so that it straddled both eastbound lanes of traffic. Barney turned his vehicle around, activated his video recorder, and pursued the truck in order to stop it and determine whether the driver of the vehicle was under the influence of alcohol, drowsy, or otherwise impaired. For the approximately two miles that Barney followed the truck, he observed no further problems that might indicate an impaired driver, and he stated at the hearing on the motion to suppress that there were extreme wind conditions that day that might account for the temporary drifting of the truck into the other lane.
After pulling him over, Barney informed Bello that he had been driving outside the regular lane of traffic. Bello acknowledged that this may have occurred, but stated that he was having difficulties controlling the vehicle due to the wind. Barney noted during this initial conversation that the vehicle’s front windshield was cracked and requested to see his driver’s license and registration, both of which Bello produced. The car was registered to Bobby Randall of Arcadia, California.
Barney testified at the suppression hearing that he smelled raw marijuana when he first approached the truck, and again when he passed by the camper portion of the pickup on his way back to his vehicle to issue a warning citation for the cracked windshield and weaving. Barney requested that the dispatcher attempt to contact the owner of the vehicle, but the dispatcher informed him that there was no telephone listing for that individual.
When Barney returned to the truck with the citation he again smelled marijuana and asked Bello if he could look in the vehicle. Bello responded, “Yes, sir.” After looking through the cab area of the truck, Barney moved to the rear of the vehicle and pointed to the lock on the camper shell. Bello asked if Barney wanted the key and when Barney said that he did, Bello retrieved the key from the ignition. When Barney inspected the camper area of the truck he found more than 100 pounds of marijuana.
Bello was arrested and charged with possession of marijuana. He later filed a motion to suppress the evidence seized as a result of the warrantless search of his vehicle. The trial court denied the motion, ruling that the initial traffic stop was pursuant to a legitimate law enforcement function, and that the officer “upon smelling the odor of raw mari *586 juana, had probable cause to believe the Defendant was engaged in possession of controlled substances.” The trial court denied Bello’s motion for reconsideration.
Following a bench trial on April 29, 1992, Bello was convicted as charged. On November 24, 1992, the trial court reduced Bello’s conviction one degree pursuant to Utah Code Ann. § 76-3-402(1) (Supp.1993) and sentenced him to zero to five years in the Utah State Prison.
ISSUES ON APPEAL
Bello raises seven issues on appeal: (1) Was the initial stop lawful? (2) Was the officer justified in detaining Bello further after determining that Bello was not impaired in any way? (3) Did Bello consent to the search? (4) Was Bello’s consent invalid because it was not sufficiently attenuated from the allegedly unlawful stop? (5) Did the search conducted by Barney exceed the scope of Bello’s consent? (6) Did the war-rantless vehicle search violate the Utah Constitution? and (7) Are the district court’s factual findings and conclusions of law insufficiently detailed? Our determinations with respect to the lawfulness of the initial stop and attenuation of consent render consideration of the remaining issues unnecessary, and accordingly, we do not reach them.
STANDARD OF REVIEW
The Utah Supreme Court recently clarified the standard of review applicable to reasonable suspicion determinations in the context of an investigatory stop.
State v. Pena,
ANALYSIS
Initial Stop
It is by now well established that the Fourth Amendment applies to investigatory stops of vehicles “regardless of the reason for the stop or the brevity of the detention.”
State v. Talbot,
In the instant case, the State contends that both grounds for constitutionally stopping a *587 vehicle are present. The State claims that when Bello’s truck briefly crossed the center line of the eastbound lanes, he violated a statute requiring that a vehicle be operated “as nearly as practical entirely within a single lane ...” Utah Code Ann. § 41-6-61(1) (1993). Next, the State argues that Bello’s weaving provided Deputy Barney with reasonable suspicion that Bello was driving while impaired by drugs or alcohol.
With respect to the argument that Bello could be legitimately stopped for violating section 41-6-61(1), we note that the statute requires only that a vehicle remain entirely in a single lane “as nearly as practical.” It was extremely windy on the morning in question and Bello’s truck had a camper shell that caused it to catch the wind more easily than other vehicles. These facts, in combination with the fact that in the two miles that Barney followed Bello he observed no further weaving, lead us to conclude that the single instance of weaving seen by Barney could not constitute a violation of section 41-6-61(1) and therefore cannot serve as the constitutional basis for stopping Bello’s truck.
The State’s second argument in justification of the stop relies upon the existence of reasonable suspicion that Bello was involved in criminal activity — driving while under the influence of drugs or alcohol. In determining whether reasonable suspicion exists, this court looks to the totality of the circumstances present at the time the officer decided to stop the vehicle.
Sierra,
The State bases its claim of reasonable suspicion of criminal activity on the single incident of weaving witnessed by Barney. In light of the totality of circumstances, this fact is inadequate to justify the stop of Bello’s vehicle. Barney’s initial suspicion, triggered by a minor driving aberration, was not corroborated in any way during the ensuing pursuit. The extreme wind conditions, the type of vehicle driven by Bello, and the complete absence of any further traffic violations or any other indicia of impairment during the two miles Barney pursued Bello persuade this court that the trial court erred in concluding from those sparse facts that there was reasonable suspicion to justify the traffic stop. As the Tenth Circuit recently noted, “[I]f failure to follow a perfect vector down the highway ... were sufficient reason[ ] to suspect a person of driving while impaired, a substantial portion of the public would be subject each day to an invasion of their privacy.”
United States v. Lyons,
Consent to Search
Despite the illegal stop, it is constitutionally permissible to admit the evidence recovered as a result of the search of Bello’s vehicle if both prongs of a two-part test are satisfied: (1) the consent was voluntarily given,
3
and (2) the consent was not obtained
*588
through “exploitation” of the prior illegal police conduct.
State v. Thurman,
We analyze only the second prong, which requires that Bello’s consent cannot have been the product of police exploitation of the illegal stop, “or in other words, ‘whether the “taint” of the Fourth Amendment violation was sufficiently attenuated to permit introduction of the evidence.’ ”
4
Thurman,
The Utah Supreme Court has explained the “purpose and flagrancy” factor as directly bearing upon the “deterrent value” of suppression.
Thurman,
With respect to the temporal proximity factor, the record establishes that very little time passed between the initial stop and the request for permission to search the vehicle. Barney asked a few questions about the reason for the weaving, the identity of the vehicle’s owner, and Bello’s destination, along with requesting his license and registration. A few minutes later, after checking the information provided by Bello, Barney returned and asked if he could look in the vehicle. As in
State v. Sims,
The final factor in the exploitation analysis, whether there are intervening circumstances, also supports a conclusion that the evidence should be suppressed. The intervening circumstances must be independent of the illegal police conduct.
Sims,
We conclude after reviewing the three exploitation analysis factors that there was not sufficient attenuation between the illegal stop and the consent to search and therefore the evidence seized in this case must be excluded pursuant to
State v. Larocco,
CONCLUSION
After careful review of the record, we conclude that neither of the grounds asserted by the State in justification of the stop of Bello’s vehicle has merit. Bello did not violate section 41-6-61(1) by weaving once in high winds, and similarly, this single occurrence does not provide reasonable suspicion that Bello was driving under the influence justifying the stop of Bello’s vehicle. We further find that the taint of this illegal stop was not attenuated by time or intervening circumstances, and Bello’s consent to search was therefore invalid. Accordingly, we reverse the trial court’s denial of Bello’s motion to suppress the evidence and remand this matter for a new trial.
BILLINGS and DAVIS, JJ., concur.
Notes
. This mixed standard of review is also applicable to the trial court’s determination of voluntary consent. The Pena court stated that the trial court is not granted the same degree of discretion in evaluating voluntary consent questions as with reasonable suspicion determinations because
while there [are] varying fact patterns that would be relevant to determinations of volun-tariness of consent, they [are] not so unmanageable in their variety as to outweigh the interest in having uniform legal rules regarding consent to search, given the substantial Fourth Amendment interests lost as a result of such consents.
State v. Pena,
. Because we conclude there was not reasonable suspicion for the stop we do not address Bello’s additional argument that the stop was pretextual.
See United States v. Lyons,
. Bello argues for the first time on appeal that his consent to search was not voluntary, but rather was “mere acquiescence to the demands of a police officer.” This court need not consider an issue raised for the first time on appeal unless the defendant "persuades us the trial court committed plain error or that there are other exceptional circumstances.”
State v. Sepulveda,
. The trial court did not make express findings on the issue of attenuation. However, the material facts in this case are not contested and the record, composed of the transcripts of the suppression hearing and the video tape of the stop made by Barney, is sufficiently detailed and comprehensive that we may resolve this issue.
State
v.
Small,
